CN202171663U - Optical fiber connecting device - Google Patents
Optical fiber connecting device Download PDFInfo
- Publication number
- CN202171663U CN202171663U CN2011202819828U CN201120281982U CN202171663U CN 202171663 U CN202171663 U CN 202171663U CN 2011202819828 U CN2011202819828 U CN 2011202819828U CN 201120281982 U CN201120281982 U CN 201120281982U CN 202171663 U CN202171663 U CN 202171663U
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- Prior art keywords
- optical fiber
- tube wall
- splicing device
- wall
- deformable
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 139
- 230000008878 coupling Effects 0.000 claims abstract description 70
- 238000010168 coupling process Methods 0.000 claims abstract description 70
- 238000005859 coupling reaction Methods 0.000 claims abstract description 70
- 238000009826 distribution Methods 0.000 claims description 8
- 238000005304 joining Methods 0.000 claims description 2
- 230000002596 correlated effect Effects 0.000 abstract 1
- 230000000875 corresponding effect Effects 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
- 238000013461 design Methods 0.000 description 13
- 229910052573 porcelain Inorganic materials 0.000 description 10
- 208000007101 Muscle Cramp Diseases 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 235000012364 Peperomia pellucida Nutrition 0.000 description 1
- 240000007711 Peperomia pellucida Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
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Abstract
An optical fiber connecting device mainly consists of a case seat and at least one optical fiber coupling tube fixed in the case seat, wherein internal and external shapes of the case seat are corresponding to specifications of the different optical fiber connecting devices, the optical fiber coupling tube is fixed in the case seat at a middle position, the optical fiber coupling tube consists of a hard tube wall distributed axially and at least one deformable tube wall, and the deformable tube wall has an elasticity capable of deforming slightly and restoring automatically. Therefore, the optical fiber connecting device of the utility model may have an accurate positioning when used for connecting the optical fibers, and both an optical signal loss and a drawing force can be accorded with correlated provisions.
Description
Technical field
The utility model relates to a kind of optical fiber splicing device; The technical field that belongs to optical fiber splicing device; Especially the particular design that refers to a kind of use device inner structure; Make member itself have suitable toughness and recovery, required accurate location when reaching optical fiber and connecting, handled easily and suitable fastness.
Background technology
As shown in Figure 1, be the exploded view of existing conventional SC type optical fiber splicing device.This optical fiber splicing device mainly includes two shell spares 11 and 12, two fastening unit 13 and 14 and one porcelain bushing 15.The vertical plane of this fastening unit 13 has the cramp 131 of two opposite faces and the conduit 132 of a hollow, and relatively these 14 places, fastening unit also have two cramps 141 and a conduit 142.This porcelain bushing 15 axially has a tiny groove 151, and porcelain bushing 15 is had can slight deformation and the characteristic of answer.This porcelain bushing 15 is to place in this conduit 132 and 142 during assembling, and the involutory again fastening in this fastening unit 13 and 14 is fixed, and back cover spare 11 and 12 fit respectively is fixed in and fastens unit 13 and 14 peripheries, forms an optical fiber splicing device.The characteristic of this structure is: in the time of in ferrule (Ferrule) is inserted by porcelain bushing 15 two ends; Utilize groove 151 and make the porcelain bushing 15 can slight deformation and endoporus deformation or aperture are strengthened; Make things convenient for the lasting insertion of ferrule (Ferrule); When porcelain bushing 15 is replied, then make two optical fiber aligns location.But this structure has following several shortcomings:
1. number of components is more, costs multiple working procedure during assembling, man-hour long and trouble comparatively;
2. cost is high, and this porcelain bushing must have suitable precision, and cost is high;
3. number of components is many, when producing, must design many molds, indivedual processings, and the stock just fits together afterwards respectively, makes production cost improve.
For this reason, the design people then thinks deeply the structure of the another kind of optical fiber splicing device of design,
Summary of the invention
The purpose of the utility model provide a kind of can accurately be located by connecting and cost low, applied range, and number of components is few, assembling produce to be easy to optical fiber splicing device is to overcome the foregoing problems that prior art exists.
For reaching above-mentioned purpose; A kind of optical fiber splicing device of the utility model; Include a shell block and at least one optical fiber tube coupling; This optical fiber tube coupling is fixed in the shell block, be the hollow pipeline that docks with ferrule in the pipe of this optical fiber tube coupling, it is characterized in that: this optical fiber tube coupling is to have the ability slight deformation and the deformable tube wall that automatically replies constitutes by a hard tube wall that is axial distribution and at least one.
The part of this optical fiber tube coupling circumference is the hard tube wall, and the remainder of circumference is the deformable tube wall; The thickness of this deformable tube wall is less than the thickness of hard tube wall.
Have at least one groove in the hard tube wall near this deformable tube wall, this groove is the wherein at least one place that is formed at inside pipe wall with the pipe outer wall of hard tube wall.
The part of this optical fiber tube coupling circumference is the hard tube wall, and the remainder of circumference is the deformable tube wall; This variable tube wall and the hard tube wall part of joining is formed with groove, and this groove is at least one place that is distributed in inside pipe wall and the pipe outer wall.
The interior hole shape of this optical fiber tube coupling and size are to be made up of deformable tube wall and hard tube wall.
Have at least this deformable tube wall to be positioned at this stereoplasm tube pars intramuralis, have the space between the part inwall of this deformable tube wall regional area and hard tube wall.
The interior hole shape of this optical fiber tube coupling and size are to be made up of one or several these deformable tube walls and hard tube wall.
This deformable tube wall has several and is positioned at this hard tube wall, and the interior hole shape of this optical fiber tube coupling and size are to be made up of several these deformable tube walls.
This shell block inside has a fixed head, and this fixed head is incorporated into this optical fiber tube coupling outer wall place, makes this optical fiber tube coupling in being like the cantilever-shaped fixed head both sides that are distributed in.
This optical fiber splicing device is SC type or LC type optical fiber splicing device.
An optical fiber tube coupling is housed in a described shell block constitutes the optical fiber splicing device of specification one to one; Or the optical fiber splicing device that constitutes the multi-to-multi specification more than one optical fiber tube coupling is housed in a described shell block.
The utility model is in the shell block of optical fiber splicing device, to be provided with an optical fiber tube coupling; This optical fiber tube coupling inside is the hollow pipeline of fiber alignment; Middle section shell then is to be incorporated in the shell block with fixed head, and this optical fiber tube coupling is to be made up of hard tube wall that is axial distribution and deformable tube wall, and this deformable tube wall energy makes pipe orifice produce deformation; More or less freely when the ferrule of rigidity is inserted, and the recoverability of deformable tube wall makes the ferrule fastness after the plant good.This hard tube wall provides a reference field in addition, makes ferrule push this reference field to according to the restoring force of deformable tube wall, and it is online to make two optical fiber of desire butt joint in the optical fiber splicing device be positioned at same center.So it is easy to operate that the optical fiber splicing device of the utility model has, fastness is good and locate advantages such as accurate.
Following conjunction with figs. and assembly mark are done more detailed explanation to the embodiment of the utility model.
Description of drawings
Fig. 1 is an exploded view of commonly using fiber coupling device;
Fig. 2 is the vertical view of the utility model first embodiment;
Fig. 3 is the partial cutaway schematic of the utility model first embodiment;
Fig. 4 is the partial cutaway schematic of the utility model second embodiment;
Fig. 5 is the partial cutaway schematic of the utility model the 3rd embodiment;
Fig. 6 is the partial cutaway schematic of the utility model the 4th embodiment;
Fig. 7 is the exploded view of the utility model first embodiment;
Fig. 8 is the exploded view of the another kind of embodiment of the utility model;
Fig. 9 is the vertical view of made two pairs two optical fiber splicing device of utilization the utility model;
Figure 10 is the part section stereographic map of the made LC type optical fiber splicing device of utilization the utility model;
Figure 11 is the vertical view of the made LC type of utilization the utility model optical fiber splicing device.
Description of reference numerals: 11, shell spare, 12, shell spare, 13, fasten the unit, 131, cramp, 132, conduit, 14, fasten the unit; 141, cramp, 142, conduit, 15, porcelain bushing, 151, groove, 2, the joints of optical fibre, 3, shell block; 31, shell, 311, the first shell spare, 312, the second shell spare, 32, fixed head, 33, buckling component, 331, fastening piece; 332, fastening piece, 4, the optical fiber tube coupling, 41, the hard tube wall, 42, the deformable tube wall, 43, groove, 4A, optical fiber tube coupling; 4B, optical fiber tube coupling, 41B, hard tube wall, 411, the heavy wall district, 412, tenuity, 42B, deformable tube wall; 4C, optical fiber tube coupling, 41C, hard tube wall, 2A, optical fiber splicing device, 3A, shell block, 3B, shell block.
Embodiment
As shown in Figures 2 and 3, apply to the vertical view and the partial cutaway schematic of optical fiber splicing device one to one for the utility model.The optical fiber splicing device 2 of the utility model mainly includes a shell block 3 and at least one optical fiber tube coupling 4.This shell block 3 inside and outside shapes are to be relative shape according to the optical fiber splicing device of different types, are the optical fiber splicing device of a SC type at present embodiment, so the structure of this shell block 3 includes a shell 31, a fixed head 32 and two groups of buckling components 33.This fixed head 32 is positioned at the centre position of shell 31 inside, is fixed in the outer wall of optical fiber tube coupling 4 middle section positions simultaneously.Two groups of buckling components 33 lay respectively at this fixed head 32 back to two sides.This buckling component 33 is to be made up of the fastening piece 331 of two opposite faces and 332 of fastening pieces, and this fastening piece 331 and 332 has elasticity, and shape and structure are to decide according to the fibre-optical splice of institute's desire connection.This shell block 3 with commonly use (existing conventional) structural similarity, so no longer encyclopaedize.The emphasis of the utility model is this optical fiber tube coupling 4.These optical fiber tube coupling 4 stage casing outer walls are combining this fixed head 32, make this optical fiber tube coupling 4 be cantilever-shaped fixed head 32 both sides that are distributed in.This optical fiber tube coupling 4 be by a hard tube wall 41 that is axial distribution be at least 42 of deformable tube walls and constitute, be the hollow pipeline that docks with ferrule (Ferrule) in the optical fiber tube coupling 4.The elasticity that this deformable tube wall 42 has the ability slight deformation and automatically replies.This optical fiber tube coupling 4 is to be made up of macromolecular material, comprises synthetic plastic, synthetic rubber, synthon or synthetic resin etc.
The utility model principle is to utilize this deformable tube wall 42 when ferrule (Ferrule) inserts; Elder generation's slight deformation and make pipe orifice deformation; Continue to insert in order to ferrule (Ferrule); The toughness and the elasticity recovery that utilize deformable tube wall 42 materials itself to have afterwards reach the required fastness in ferrule (Ferrule) butt joint back.Moreover these deformable tube wall 42 restoring forces also can push away ferrule (Ferrule) toward pipe orifice is monolateral, promptly push the inwall direction of this hard tube wall 41 to, and this moment, the reference field of optical fiber was the inside surface of hard tube wall 41.Thus, inserting two ferrules (Ferrule) by these optical fiber tube coupling 4 two ends will be at same position of center line, guarantees that optical fiber can accurately locate coupling.
Just know that by above-mentioned explanation the deformable tube wall 42 in this optical fiber tube coupling 4 has suitable importance; But how to make this deformable tube wall 42 have slight deformation and the flexible ability of automatic recovery? The utility model provides several kinds of different embodiment to explain; At first as shown in Figure 3; This optical fiber tube coupling 4 is to be made up of a hard tube wall 41 and 42 of deformable tube walls; The thickness of this deformable tube wall 42 is the thickness less than this hard tube wall 41, and this hard tube wall 41 is near having the groove 43 that is at least on the tube wall of this deformable tube wall 42 in addition.This groove 43 can be formed at wherein at least one place of inside pipe wall with the pipe outer wall of this hard tube wall 41, and is axial distribution in hard tube wall 41 places.In the present embodiment, these groove 43 numbers are two, and are formed at the inside pipe wall of hard tube wall 41.Owing to hard tube wall 41 is thicker, the intensity height can not produce distortion, utilizes the design of thin this deformable tube wall 42 with groove 43 again, the elasticity that makes this deformable tube wall 42 possess the ability slight deformation and automatically reply.This hard tube wall 41 is to be less than or equal to ferrule (Ferrule) size that desire is connected with deformable tube wall 42 formed interior hole dimensions in addition.
Among the foregoing description, this optical fiber tube coupling 4 has two conditions in addition except still being made up of hard tube wall 41 and deformable tube wall 42, and one, this deformable tube wall 42 is thinner, two, have a groove 43 that is axial distribution.But the utility model for example also can design an optical fiber tube coupling not as limit, and wherein this deformable tube wall is still thin than the hard tube wall, but pipe is inside and outside and unnotched design.Or design an optical fiber tube coupling; Wherein this hard tube wall is near having the groove that is at least on the tube wall of this deformable tube wall in addition; At this moment, it is identical that this deformable tube wall and stereoplasm tube wall thickness can be, and this mode is to utilize groove that the position of this deformable tube wall can be changed.
Because the utility model focuses on the optical fiber tube coupling, fixed head 32 and optical fiber tube coupling so following each embodiment only draws.
As shown in Figure 4, be second kind of enforcement illustration of this creation.This optical fiber tube coupling 4A is made up of hard tube wall 41 and two 42 of deformable tube walls in the present embodiment, and aforementioned each member all is axial distribution, makes and forms just like circular endoporus in the pipe.This deformable tube wall 42 must be thin than this hard tube wall 41.In the present embodiment, this groove 43 has three, and wherein two is respectively to be formed at this hard tube wall 41 to approach deformable tube wall 42 parts, and 43 of another grooves are formed between two deformable tube walls 42.But in order to keep the intensity of this hard tube wall 41, among the circumference of this optical fiber tube coupling 4A, circumferential area that this hard tube wall 41 constitutes had better not be less than 1/2nd of total circumference.
As shown in Figure 5, be the third enforcement illustration of the utility model.This optical fiber tube coupling 4B is still by hard tube wall 41B and at least one deformable tube wall 42B and constitutes in the present embodiment, but this variable tube wall 42B is arranged in this hard tube wall 41B.The pipe orifice shape of this optical fiber tube coupling 4B is to be made up of this hard tube wall 41B and deformable tube wall 42B in the present embodiment.This hard tube wall 41B is the tube wall that is made up of a circle heavy wall district 411 and tenuity 412; Wherein this deformable tube wall 42B is the inwall place that is arranged at tenuity 412; Have space 421 between this deformable tube wall 42B regional area and the tenuity 412, this deformable tube wall 42B is had can slight deformation and the elasticity that automatically replies.The number of this deformable tube wall 42B has two in the present embodiment.Heavy wall district 411 by this hard tube wall 41B also must be less than or equal to ferrule (Ferrule) size that desire is connected with the interior hole dimension that two deformable tube wall 42B are constituted in addition.
As shown in Figure 6, be the 4th kind of enforcement illustration of the utility model.This optical fiber tube coupling 4C is made up of hard tube wall 41C and three deformable tube wall 42B in the present embodiment; This deformable tube wall 42B all is axial distribution in this hard tube wall 41C, but the pipe orifice shape of this optical fiber tube coupling 4C then is to be made up of three deformable tube wall 42B in the present embodiment.This hard tube wall 41C is a light wall pipe in this enforcement, can not be out of shape but intensity is good.This deformable tube wall 42B is incorporated in the hard tube wall 41C, but the inwall of local local and hard tube wall 41C still has space 421, and this deformable tube wall 42B is had can slight deformation and the elasticity that automatically replies.Present embodiment has a special requirement; Owing to be to constitute interior hole shape by three deformable tube walls 42; The action direction of these three variable tube wall 42B restoring forces is must be through the central point of pipe, and it is online so just to make optical fiber after being inserted by optical fiber tube coupling 4C be positioned at same center.
As shown in Figure 7, be the exploded view of the utility model.Convenience in order to produce is when the optical fiber splicing device of the utility model can be made up of three members when producing.Wherein this fixed head 32, two buckling components 33 and optical fiber tube coupling 4 are first member.This shell 31 is to be made up of two members such as the first shell spare 311 and the second shell spares 312.Aforementioned three members are all adopted ejection formation and are processed.During assembling first member is placed the centre position, and the first shell spare 311 and the second shell spare 312 is involutory, but the mining height cycle binds mode or with the adhesive agent auxiliary fixing between each member.
As shown in Figure 8, be the exploded view of the another kind of embodiment of the utility model.In the present embodiment, this fixed head 32, two buckling components 33 and optical fiber tube coupling 4 are first member.This shell 31A is independent hollow shell, is second member.Aforementioned two members are all adopted ejection formation and are processed, therefore in the present embodiment as long as two kinds of members just can be processed an optical fiber splicing device.Embodiment by earlier figures 8 and Fig. 9 can know; The optical fiber splicing device of the utility model is because of the difference of design; Can form by two or three members; But this is merely partly embodiment of the utility model, and the deviser also can be designed to a member with fixed head and optical fiber tube coupling, and buckling component and shell are configured to second member.Perhaps change the shape of shell, whole optical fiber splicing device is changed into solid memder, again with the injection molding method straight forming.Therefore not limiting this optical fiber splicing device at the utility model is made up of several member.
Fig. 9 is the optical fiber splicing device of made two couples, the two SC types of utilization the utility model.This optical fiber splicing device 2A is two pairs two a specification in the present embodiment, so this shell block 3A also is different shapes thereupon, and for example this shell block 3A inside has four groups of buckling components 33.4 of this optical fiber tube couplings have two groups in addition.Hence one can see that, and the design of the utility model is applicable to the optical fiber splicing device that reaches multi-to-multi one to one.
Figure 10 and Figure 11 are the partial cutaway schematic and the vertical view of the made man-to-man LC type optical fiber splicing device of utilization the utility model.This shell block 3B is shaped as the specification of LC type in the present embodiment, so shell block 3B inside does not have structures such as buckling component, and these optical fiber tube coupling 4 stage casings still are fixed in shell block 3B inside with a fixed head 32.The design of the utility model in like manner also can apply to two pairs two LC type optical fiber splicing device.
Each embodiment by above-mentioned can know that the design of the utility model can apply among the optical fiber splicing device of various types, for example the optical fiber splicing device of SC type optical fiber splicing device, LC type, one to one or the optical fiber splicing device of multi-to-multi.The shape of shell block then is relative shape according to the optical fiber splicing device of different types, but emphasis all has the optical fiber tube coupling of at least one the utility model for the inside of each optical fiber splicing device.
This device inside is the butt joint coupling of being responsible for optical fiber with the optical fiber tube coupling of a particular design; And this optical fiber tube coupling can be with the homogenous material ejection formation; Significantly reduce production costs thus; And this device in use, and after also meeting optical fiber and connecting, loss of light signal and pulling capacity meet related requests such as world's standard.
If the SC type optical fiber splicing device of processing with the utility model with commonly use SC type optical fiber splicing device and make comparisons; It is three or two that the number of components of the utility model can simplify; Even be one, need compare by 5 members with commonly using optical fiber splicing device, reduce number of components in a large number; With more convenient, also can shorten man-hour on producing and assembling.And must expensive porcelain bushing among the member, cost is reduced, let product have more the market competitiveness.
Above-mentioned instance is merely the preferred embodiment of the utility model, when can not with the scope of qualification the utility model enforcement, the equalization of promptly being done according to the utility model claim generally changes and modifies, and all should still belong in the scope that the utility model contains.
Claims (11)
1. optical fiber splicing device; Include a shell block and at least one optical fiber tube coupling; This optical fiber tube coupling is fixed in the shell block; Be the hollow pipeline that docks with ferrule in the pipe of this optical fiber tube coupling, it is characterized in that: this optical fiber tube coupling is to have the ability slight deformation and the deformable tube wall that automatically replies constitutes by a hard tube wall that is axial distribution and at least one.
2. optical fiber splicing device as claimed in claim 1 is characterized in that: the part of this optical fiber tube coupling circumference is the hard tube wall, and the remainder of circumference is the deformable tube wall; The thickness of this deformable tube wall is less than the thickness of hard tube wall.
3. optical fiber splicing device as claimed in claim 2 is characterized in that: have at least one groove in the hard tube wall near this deformable tube wall, this groove is the wherein at least one place that is formed at inside pipe wall with the pipe outer wall of hard tube wall.
4. optical fiber splicing device as claimed in claim 1 is characterized in that: the part of this optical fiber tube coupling circumference is the hard tube wall, and the remainder of circumference is the deformable tube wall; This variable tube wall and the hard tube wall part of joining is formed with groove, and this groove is at least one place that is distributed in inside pipe wall and the pipe outer wall.
5. optical fiber splicing device as claimed in claim 1 is characterized in that: the interior hole shape of this optical fiber tube coupling and size are to be made up of deformable tube wall and hard tube wall.
6. optical fiber splicing device as claimed in claim 1 is characterized in that: have at least this deformable tube wall to be positioned at this stereoplasm tube pars intramuralis, have the space between the part inwall of this deformable tube wall regional area and hard tube wall.
7. optical fiber splicing device as claimed in claim 6 is characterized in that: the interior hole shape of this optical fiber tube coupling and size are to be made up of one or several these deformable tube walls and hard tube wall.
8. optical fiber splicing device as claimed in claim 6 is characterized in that: this deformable tube wall has several and is positioned at this hard tube wall, and the interior hole shape of this optical fiber tube coupling and size are to be made up of several these deformable tube walls.
9. optical fiber splicing device as claimed in claim 1 is characterized in that: this shell block inside has a fixed head, and this fixed head is incorporated into this optical fiber tube coupling outer wall place, makes this optical fiber tube coupling in being like the cantilever-shaped fixed head both sides that are distributed in.
10. optical fiber splicing device as claimed in claim 1 is characterized in that: this optical fiber splicing device is SC type or LC type optical fiber splicing device.
11. optical fiber splicing device as claimed in claim 1 is characterized in that: an optical fiber tube coupling is housed in a described shell block constitutes the optical fiber splicing device of specification one to one; Or the optical fiber splicing device that constitutes the multi-to-multi specification more than one optical fiber tube coupling is housed in a described shell block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202819828U CN202171663U (en) | 2011-08-05 | 2011-08-05 | Optical fiber connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202819828U CN202171663U (en) | 2011-08-05 | 2011-08-05 | Optical fiber connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202171663U true CN202171663U (en) | 2012-03-21 |
Family
ID=45829856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202819828U Expired - Fee Related CN202171663U (en) | 2011-08-05 | 2011-08-05 | Optical fiber connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202171663U (en) |
-
2011
- 2011-08-05 CN CN2011202819828U patent/CN202171663U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120321 Termination date: 20140805 |
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| EXPY | Termination of patent right or utility model |