JPS647324A - Production of magnetic recording medium - Google Patents

Production of magnetic recording medium

Info

Publication number
JPS647324A
JPS647324A JP62135241A JP13524187A JPS647324A JP S647324 A JPS647324 A JP S647324A JP 62135241 A JP62135241 A JP 62135241A JP 13524187 A JP13524187 A JP 13524187A JP S647324 A JPS647324 A JP S647324A
Authority
JP
Japan
Prior art keywords
film
region
film thickness
aperture
cylindrical
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
Application number
JP62135241A
Other languages
Japanese (ja)
Inventor
Ryuji Sugita
Kiyokazu Toma
Kazuyoshi Honda
Taro Nanbu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62135241A priority Critical patent/JPS647324A/en
Publication of JPS647324A publication Critical patent/JPS647324A/en
Pending legal-status Critical Current

Links

Landscapes

  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To decrease the quantity of the electrostatic charge of a high-polymer film by reflected electrons and to remove wrinkles therefrom by dividing the film thickness of a magnetic layer to two regions and specifying the film thickness of one region to a prescribed value or below, thereby providing a potential difference between the magnetic layer and a cylindrical can. CONSTITUTION:A perpendicular magnetic anisotropy film 12 consisting of Co-Cr is formed on a polyimide film. 150V potential difference is provided between a vapor deposited film and the cylindrical can 2 at the time of vapor deposition. The region 13 having 2,000Angstrom film thickness and the region 14 having <=100Angstrom average film thickness are formed on the film 12 in the case of forming the film 12 by vapor deposition using an shielding plate 6 having an aperture S. The width of the aperture S is formed partly to l', (>l) in the traveling direction of the high-polymer film. No wrinkles are generated at all on the high- polymer film if the film 12 is formed thereon in such a manner.
JP62135241A 1987-02-16 1987-05-29 Production of magnetic recording medium Pending JPS647324A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62135241A JPS647324A (en) 1987-02-16 1987-05-29 Production of magnetic recording medium

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3307887 1987-02-16
JP62135241A JPS647324A (en) 1987-02-16 1987-05-29 Production of magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS647324A true JPS647324A (en) 1989-01-11

Family

ID=26371712

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62135241A Pending JPS647324A (en) 1987-02-16 1987-05-29 Production of magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS647324A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4963858A (en) * 1987-09-08 1990-10-16 Chien Fong K Changeable input ratio mouse
DE102019000822A1 (en) 2018-02-09 2019-08-14 NGK lnsulators, Ltd. Process for producing a honeycomb green body or fired article, support and process for its production

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4963858A (en) * 1987-09-08 1990-10-16 Chien Fong K Changeable input ratio mouse
DE102019000822A1 (en) 2018-02-09 2019-08-14 NGK lnsulators, Ltd. Process for producing a honeycomb green body or fired article, support and process for its production

Similar Documents

Publication Publication Date Title
ES486015A1 (en) Thin film magnetic heads.
JPS5671821A (en) Substrate for magnetic disc and its manufacture
JPS647325A (en) Production of magnetic recording medium
JPS5720919A (en) Magnetic recording medium and its manufacture
JPS5720961A (en) Magnetic head assembly
KR920003267A (en) Method of manufacturing magnetic recording medium
JPS6139228A (en) magnetic recording medium
JPS5724031A (en) Production of vertical magnetic recording medium
JPS5755531A (en) Vertical magnetic recording medium
JPS6423417A (en) Magnetic recording medium
US4547398A (en) Method for manufacturing magnetic recording medium
JPS6476420A (en) Magnetic recording medium
NO901332L (en) METAL OXYME FILMS, AND PROCEDURES OF PRODUCING THEREOF.
JPS54143116A (en) Magnetic recording medium
JPS57198533A (en) Magnetic recording medium
KR950012350A (en) Method of manufacturing magnetic recording medium
JPS6455761A (en) Production of magneto-optical disk
JPS6011373B2 (en) Method for manufacturing magnetic recording media
JPS57198535A (en) Magnetic recording medium
JPS55163630A (en) Magnetic recording medium
JPS5718012A (en) Vertical magnetization recording magnetic head
JPH043324A (en) Magnetic tape
JPS6453346A (en) Production of magnetic recording medium
JPS6482326A (en) Magnetic recording medium
JPS57198534A (en) Magnetic recording medium