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Patent Searching and Data


Title:
MAGNETIC RECORDING MEDIUM AND MANUFACTURE THEREOF
Document Type and Number:
Japanese Patent JPH0612658
Kind Code:
A
Abstract:

PURPOSE: To obtain a magnetic recording medium superior in lubricity performance by using a vapor deposited film layer in which the ratio of region where lubricant molecules are oriented vertically against substrate surface, is ≥20% of the total lubricating layer surface.

CONSTITUTION: A vapor depositing substance 5 is put on a vapor depositing substance holder 4 which has a temp. adjustment function, and temperatures of a substrate 2 and the vapor depositing substance 5 are exactly controlled by a tyemp. control heater 41 and a temp. monitoring thermometer 42. When a temp. difference between the substrate 2 and the vapor depositing substance 5 is ≤30°C, the ratio of the region where the molecules are vertically oriented against the substrate surfaceoccupy, is ≥90%, so that the temperatures of the substrate 2 and the vapor depositing substance 5 are held within ± 2°C for the set value and the operation is performed. The optimum temp. of the substrate 2 is different depending on the kind of a protective layer substance of the substrate surface and the kinf of the vapor depositing substance 5, and the thickness of the protective layer is normally 10-100, preferably 20-50.


Inventors:
Seta, Yuichi
Sato, Kiyotaka
Inaoka, Kimio
Application Number:
JP1992000171034
Publication Date:
January 21, 1994
Filing Date:
June 29, 1992
Export Citation:
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Assignee:
MITSUBISHI KASEI CORP
International Classes:
G11B5/71; C09D5/23; C09D7/12; G11B5/82; G11B5/84; (IPC1-7): G11B5/71; G11B5/82; G11B5/84
Attorney, Agent or Firm:
長谷川 一 (外1名)