JPS55157129A - Production of medium for magnetic recording - Google Patents
Production of medium for magnetic recordingInfo
- Publication number
- JPS55157129A JPS55157129A JP6158179A JP6158179A JPS55157129A JP S55157129 A JPS55157129 A JP S55157129A JP 6158179 A JP6158179 A JP 6158179A JP 6158179 A JP6158179 A JP 6158179A JP S55157129 A JPS55157129 A JP S55157129A
- Authority
- JP
- Japan
- Prior art keywords
- mask
- minute holes
- layer
- evaporation
- 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
Landscapes
- Manufacturing Of Magnetic Record Carriers (AREA)
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE: To produce medium for in-face or vertical recording by approximately same processes, by providing a mask layer on the supporting material surface of a nonmagnetic material and by etching it selectively and by filling magnetic materials in many formed and arranged minute holes of specific size.
CONSTITUTION: For example, after polishing, SiO2 film 2 of a nonmagnetic material is caused to evaporation-adhere onto washed and dried Al plate 1 by the known method, and resin layer 4 is applied and formed on film 2. Next, a mask having minute holes whose maximum diameter is a recording minimum unit length or less is superposed onto layer 4 by the electron beam processing method and so on, and the mask is developed to form columnar resin 4' after irradiation of radiant rays. Next, redin 4' is removed to leave only the CR mask as it is after evaporation-adhesion of, for example, metal Cr, and this mask is oxidized to form CrO2 mask 5. Next, Ar ion beam and so on are irradiated to all the surface to form minute holes 6 regularly, and Al plate 1 on the bottom of minute holes 6 is plated with metal or alloy as a conductive layer, and magnetic material 7 is filled.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6158179A JPS55157129A (en) | 1979-05-21 | 1979-05-21 | Production of medium for magnetic recording |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6158179A JPS55157129A (en) | 1979-05-21 | 1979-05-21 | Production of medium for magnetic recording |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55157129A true JPS55157129A (en) | 1980-12-06 |
Family
ID=13175233
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6158179A Pending JPS55157129A (en) | 1979-05-21 | 1979-05-21 | Production of medium for magnetic recording |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55157129A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6602620B1 (en) | 1998-12-28 | 2003-08-05 | Kabushiki Kaisha Toshiba | Magnetic recording apparatus, magnetic recording medium and manufacturing method thereof |
US8153190B2 (en) | 2003-07-19 | 2012-04-10 | Samsung Electronics Co., Ltd. | Patterned magnetic recording medium and method of manufacturing the same |
US9053733B2 (en) | 2010-04-14 | 2015-06-09 | Kabushiki Kaisha Toshiba | Magnetic recording medium with magnetic portions of different orientations and method of manufacturing the same |
-
1979
- 1979-05-21 JP JP6158179A patent/JPS55157129A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6602620B1 (en) | 1998-12-28 | 2003-08-05 | Kabushiki Kaisha Toshiba | Magnetic recording apparatus, magnetic recording medium and manufacturing method thereof |
US8153190B2 (en) | 2003-07-19 | 2012-04-10 | Samsung Electronics Co., Ltd. | Patterned magnetic recording medium and method of manufacturing the same |
US9053733B2 (en) | 2010-04-14 | 2015-06-09 | Kabushiki Kaisha Toshiba | Magnetic recording medium with magnetic portions of different orientations and method of manufacturing the same |
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