JPS63200224U - - Google Patents
Info
- Publication number
- JPS63200224U JPS63200224U JP9221287U JP9221287U JPS63200224U JP S63200224 U JPS63200224 U JP S63200224U JP 9221287 U JP9221287 U JP 9221287U JP 9221287 U JP9221287 U JP 9221287U JP S63200224 U JPS63200224 U JP S63200224U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- film
- nonmagnetic
- magnetic card
- magnetic film
- 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.)
- Pending
Links
- 239000000758 substrate Substances 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims 1
- 239000000919 ceramic Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Magnetic Record Carriers (AREA)
Description
第１図はこの考案の一実施例による磁気カード
の断面図、第２図はその動作原理図、第３図は磁
気カード表面における媒体の長手方向の磁界強度
と非磁性膜の膜厚との関係を数値解析により求め
た特性図である。第４図は従来の磁気カードの平
面図、第５図はその断面図、第６図はその動作原
理図である。
１は磁気カード、２は非磁性基板、３は磁性膜
、９は非磁性膜、１０は磁気カードの表面、８は
非磁性膜９の膜厚である。なお、図中、同一符号
は同一、又は相当部分を示す。
Fig. 1 is a cross-sectional view of a magnetic card according to an embodiment of this invention, Fig. 2 is a diagram of its operating principle, and Fig. 3 is a graph showing the relationship between the magnetic field strength in the longitudinal direction of the medium and the thickness of the nonmagnetic film on the surface of the magnetic card. It is a characteristic diagram obtained by numerical analysis of the relationship. FIG. 4 is a plan view of a conventional magnetic card, FIG. 5 is a sectional view thereof, and FIG. 6 is a diagram of its operating principle. 1 is a magnetic card, 2 is a non-magnetic substrate, 3 is a magnetic film, 9 is a non-magnetic film, 10 is the surface of the magnetic card, and 8 is the thickness of the non-magnetic film 9. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
テツド以上の高抗磁力の磁気記録再生用磁性膜、
及びこの磁性膜を被うように形成された膜厚４μ
ｍ以上の非磁性膜を備えた磁気カード。 (2) 非磁性膜は非磁性セラミツク粉末と有機系
バインダを配合したもので形成される実用新案登
録請求の範囲第１項記載の磁気カード。[Claims for Utility Model Registration] (1) A magnetic film for magnetic recording and reproduction with a high coercive force of 1,000 oersted or more formed on a non-magnetic substrate;
and a film thickness of 4μ formed to cover this magnetic film.
A magnetic card equipped with a non-magnetic film of m or more. (2) The magnetic card according to claim 1, wherein the nonmagnetic film is formed of a mixture of nonmagnetic ceramic powder and an organic binder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9221287U JPS63200224U (en) | 1987-06-15 | 1987-06-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9221287U JPS63200224U (en) | 1987-06-15 | 1987-06-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63200224U true JPS63200224U (en) | 1988-12-23 |
Family
ID=30953713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9221287U Pending JPS63200224U (en) | 1987-06-15 | 1987-06-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63200224U (en) |
-
1987
- 1987-06-15 JP JP9221287U patent/JPS63200224U/ja active Pending
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