KR20200061842A - SiC 및 SiOC/C 코팅층이 형성된 그라파이트 몰드 - Google Patents
SiC 및 SiOC/C 코팅층이 형성된 그라파이트 몰드 Download PDFInfo
- Publication number
- KR20200061842A KR20200061842A KR1020180147597A KR20180147597A KR20200061842A KR 20200061842 A KR20200061842 A KR 20200061842A KR 1020180147597 A KR1020180147597 A KR 1020180147597A KR 20180147597 A KR20180147597 A KR 20180147597A KR 20200061842 A KR20200061842 A KR 20200061842A
- Authority
- KR
- South Korea
- Prior art keywords
- coating layer
- sic
- sioc
- graphite
- mold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/06—Construction of plunger or mould
- C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/4505—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements characterised by the method of application
- C04B41/455—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements characterised by the method of application the coating or impregnating process including a chemical conversion or reaction
- C04B41/4554—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements characterised by the method of application the coating or impregnating process including a chemical conversion or reaction the coating or impregnating material being an organic or organo-metallic precursor of an inorganic material
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5053—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials non-oxide ceramics
- C04B41/5057—Carbides
- C04B41/5059—Silicon carbide
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/87—Ceramics
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/89—Coating or impregnation for obtaining at least two superposed coatings having different compositions
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/04—Coating on selected surface areas, e.g. using masks
- C23C16/045—Coating cavities or hollow spaces, e.g. interior of tubes; Infiltration of porous substrates
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/32—Carbides
- C23C16/325—Silicon carbide
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/1204—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material inorganic material, e.g. non-oxide and non-metallic such as sulfides, nitrides based compounds
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/04—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
-
- Y02P40/51—
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Structural Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Ceramic Products (AREA)
Abstract
Description
도 2는 본 발명의 실시예에 따른 그라파이트 몰드의 강도를 나타낸 결과이다.
도 3은 본 발명의 실시예에 따른 그라파이트 몰드의 표면을 나타낸 사진이다.
도 4는 본 발명의 실시예에 따른 SiC 코팅층이 형성된 그라파이트 모재의 온도 변화와 표면 강도를 나타낸 그래프이다.
도 5는 본 발명의 실시예와 비교예에 따른 몰드의 단면 및 표면을 나타낸 SEM 이미지이다.
도 6은 본 발명의 실시예와 비교예에 따른 몰드의 표면 조도를 나타낸 그래프이다.
도 7은 본 발명의 실시예에 따른 SiOC/C 코팅층의 TEM 이미지이다.
도 8은 본 발명의 실시예에 따른 그라파이트 몰드의 이형 테스트 결과를 나타낸 그림이다.
도 9는 본 발명의 실시예에 따른 그라파이트 몰드의 유리 이형 결과를 나타낸 이미지이다.
| 구분 | Ra | ||||
| 실시예 1 | 실시예 2 | 실시예 3 | 실시예 4 | ||
| 1 | 0.14 | 0.13 | 0.22 | 0.15 | |
| 2 | 0.23 | 0.16 | 0.10 | 0.19 | |
| 3 | 0.24 | 0.17 | 0.13 | 0.16 | |
| 4 | 0.22 | 0.12 | 0.28 | 0.20 | |
| 5 | 0.23 | 0.11 | 0.17 | 0.19 | |
| 평균 | 0.212 | 0.138 | 0.18 | 0.178 | |
| 평균 | 0.165 | ||||
| 경화온도 (Curing temp.) |
PPCS | PCS |
| 25℃ | SiO0.39C4.28 | SiO0.17C1.78 |
| 150℃ | SiO0.45C4.19 | SiO0.19C1.81 |
| 200℃ | SiO0.47C4.10 | SiO0.37C1.81 |
| 300℃ | SiO0.62C3.89 | SiO0.61C1.81 |
| 350℃ | SiO0.83C3.51 | SiO0.88C1.65 |
| 450℃ | SiO0.95C1.47 | SiO1.07C1.30 |
| 550℃ | SiO1.64C0.63 | SiO1.64C0.34 |
100: 그라파이트 모재
110: 기공
200: SiC 코팅층
210: SiC로 채워진 기공
300: SiOC/C 코팅층
Claims (9)
- 그라파이트 모재;
상기 그라파이트 모재의 상단부 기공 내에 형성되는 SiC 코팅층; 및
상기 SiC 코팅층 상에 형성되는 SiOC/C 코팅층;을 포함하고,
상기 SiC 코팅층은 상기 그라파이트 모재의 상단부 기공에 기체 상태의 실리콘을 침투시키고, 상기 실리콘이 탄소와 반응하여 SiC를 형성하면서 상기 기공을 채움으로써 형성되며,
상기 SiOC/C 코팅층에서 탄소(C)의 함량(y)은 실리콘(Si) 함량 대비 1.5 < y < 4.5의 비율로 나타나는, SiC 및 SiOC/C 코팅층이 형성된 그라파이트 몰드. - 제1항에 있어서, 상기 SiOC/C 코팅층에서 탄소(C)의 함량(y)은 실리콘(Si) 함량 대비 1.8 < y < 4.5의 비율로 나타나는 것을 특징으로 하는, SiC 및 SiOC/C 코팅층이 형성된 그라파이트 몰드.
- 제1항에 있어서, 상기 SiC 코팅층은 VDR법에 의해서 상기 그라파이트 모재의 기공에서 실리콘과 카본이 발열 활성 반응을 일으켜 SiC가 형성되어 코팅층이 형성되는 것을 특징으로 하는, SiC 및 SiOC/C 코팅층이 형성된 그라파이트 몰드.
- 제1항에 있어서, 상기 SiOC/C 코팅층은 증착, 습식 또는 건식 공정을 이용하여 형성되는 것을 특징으로 하는, SiC 및 SiOC/C 코팅층이 형성된 그라파이트 몰드.
- 제4항에 있어서, 상기 SiOC/C 코팅층이 습식 공정을 이용하여 형성되는 경우 카보실란계 또는 실록산계 고분자 용액을 이용하여 형성되는 것을 특징으로 하는, SiC 및 SiOC/C 코팅층이 형성된 그라파이트 몰드.
- 제5항에 있어서, 상기 카보실란계 고분자는 폴리카보실란, 폴리페닐카보실란, 폴리비닐카보실란 및 폴리메틸실란으로 구성된 군으로부터 선택된 1종인 것을 특징으로 하는, SiC 및 SiOC/C 코팅층이 형성된 그라파이트 몰드.
- 제5항에 있어서, 상기 실록산계 고분자는 폴리페닐실록산 및 폴리다이메틸실록산으로 구성된 군으로부터 선택된 1종인 것을 특징으로 하는, SiC 및 SiOC/C 코팅층이 형성된 그라파이트 몰드.
- 제1항에 있어서, 상기 그라파이트 모재의 상단부 기공 내에 형성되는 SiC 층은 두께 1.0 내지 100.0 ㎛로 형성되는 것을 특징으로 하는, SiC 및 SiOC/C 코팅층이 형성된 그라파이트 몰드.
- 제1항에 있어서, 상기 SiC 층 상에 형성되는 SiOC/C 코팅층은 두께 0.1 내지 1.0 ㎛로 형성되는 것을 특징으로 하는, SiC 및 SiOC/C 코팅층이 형성된 그라파이트 몰드.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020180147597A KR102134406B1 (ko) | 2018-11-26 | 2018-11-26 | SiC 및 SiOC/C 코팅층이 형성된 그라파이트 몰드 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020180147597A KR102134406B1 (ko) | 2018-11-26 | 2018-11-26 | SiC 및 SiOC/C 코팅층이 형성된 그라파이트 몰드 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20200061842A true KR20200061842A (ko) | 2020-06-03 |
| KR102134406B1 KR102134406B1 (ko) | 2020-07-15 |
Family
ID=71087429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020180147597A Active KR102134406B1 (ko) | 2018-11-26 | 2018-11-26 | SiC 및 SiOC/C 코팅층이 형성된 그라파이트 몰드 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR102134406B1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111747746A (zh) * | 2020-07-10 | 2020-10-09 | 中国人民解放军国防科技大学 | 一种SiYOC陶瓷材料及其制备方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100776252B1 (ko) | 2006-06-27 | 2007-11-13 | 요업기술원 | 탄소재 상에 내산화성 다층코팅을 형성하는 방법 |
| KR20160120844A (ko) * | 2015-04-08 | 2016-10-19 | (주)제너코트 | 흑연 기판의 표면 특성 개질 방법 |
-
2018
- 2018-11-26 KR KR1020180147597A patent/KR102134406B1/ko active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100776252B1 (ko) | 2006-06-27 | 2007-11-13 | 요업기술원 | 탄소재 상에 내산화성 다층코팅을 형성하는 방법 |
| KR20160120844A (ko) * | 2015-04-08 | 2016-10-19 | (주)제너코트 | 흑연 기판의 표면 특성 개질 방법 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111747746A (zh) * | 2020-07-10 | 2020-10-09 | 中国人民解放军国防科技大学 | 一种SiYOC陶瓷材料及其制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102134406B1 (ko) | 2020-07-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2955167B1 (en) | Silicon carbide-tantalum carbide composite and susceptor | |
| US11339498B2 (en) | Method for growing single crystal silicon carbide ingot having large diameter | |
| CN102186795B (zh) | 具有多层结构并用于与液态硅接触的材料 | |
| KR102103573B1 (ko) | 하이브리드 코팅법을 이용한 그라파이트 모재의 코팅방법 | |
| KR102030333B1 (ko) | 유체 분리용 복합 다공질막, 이의 제조 방법 및 필터 | |
| US8840861B2 (en) | Crucible for photovoltaics | |
| TWI526585B (zh) | Graphite crucible for single crystal pulling device and method for manufacturing the same | |
| KR100951633B1 (ko) | 그라파이트 폼 상에 실리콘카바이드 코팅형성방법. | |
| KR102134406B1 (ko) | SiC 및 SiOC/C 코팅층이 형성된 그라파이트 몰드 | |
| KR102121489B1 (ko) | 유리 성형용 그라파이트 몰드 | |
| JP7112215B2 (ja) | シリコン溶融ルツボ、シリコン溶融ルツボの製造方法、及び、反応焼結SiCの製造方法 | |
| JP6541123B2 (ja) | 混合粒子、混合粒子を含むスラリー、および接合体 | |
| KR102058870B1 (ko) | 대구경 탄화규소 단결정 잉곳의 성장방법 | |
| US20100089499A1 (en) | Method of manufacturing metal coated with ceramic | |
| KR102215074B1 (ko) | 산화안정성이 향상된 코팅층을 가진 탄소재 및 그 제조 방법 | |
| KR101856145B1 (ko) | 실리콘을 포함하는 그라파이트 폼 상에 실리콘카바이드의 코팅형성방법 | |
| KR101138440B1 (ko) | 실리콘카바이드 강화 다공성 모재 및 그 형성방법 | |
| JP4563322B2 (ja) | ガラス状炭素被覆炭素材及びその製造方法 | |
| JP6942788B2 (ja) | ペースト組成物、炭化物焼結体およびその製造方法、並びに耐火部材 | |
| JPH0617236A (ja) | 溶融金属用容器 | |
| KR20160057435A (ko) | 실리콘 잉곳 고화용 기재 | |
| JPH0594957A (ja) | 半導体用拡散炉部材 | |
| JPH03185820A (ja) | 半導体用処理部材 | |
| JPH06305723A (ja) | シリカ質複合粒子及びその用途 | |
| US9254589B2 (en) | Reaction container and vacuum heat treatment apparatus having the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 20181126 |
|
| PA0201 | Request for examination | ||
| PE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event date: 20200227 Patent event code: PE09021S01D |
|
| PG1501 | Laying open of application | ||
| E701 | Decision to grant or registration of patent right | ||
| PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 20200701 |
|
| GRNT | Written decision to grant | ||
| PR0701 | Registration of establishment |
Comment text: Registration of Establishment Patent event date: 20200709 Patent event code: PR07011E01D |
|
| PR1002 | Payment of registration fee |
Payment date: 20200710 End annual number: 3 Start annual number: 1 |
|
| PG1601 | Publication of registration | ||
| PR1001 | Payment of annual fee |
Payment date: 20230613 Start annual number: 4 End annual number: 4 |
|
| PR1001 | Payment of annual fee |
Payment date: 20240529 Start annual number: 5 End annual number: 5 |
|
| PR1001 | Payment of annual fee |
Payment date: 20250612 Start annual number: 6 End annual number: 6 |