The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 25, 1995
Filed:
Mar. 23, 1994
Applicant:
Inventors:
Satoshi Matsunuma, Yokohama, JP;
Yuichi Kokaku, Yokohama, JP;
Makoto Kitoh, Yokohama, JP;
Shigehiko Fujimaki, Machida, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427502 ; 427509 ; 427553 ; 427534 ; 427130 ; 427131 ;
Abstract
Disclosed are a recording medium comprising a substrate, a thin film for recording formed on at least one side of the substrate, a protective layer formed on the thin film, and a lubricative film formed on the protective layer, the lubricative film comprising an oxidative polymerization product having main molecular chains chemically bonded to the protective film; and a process for producing the recording medium. This recording medium is excellent in lubricity and durability, and the layers formed thereon can be very thin.