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:
Feb. 19, 1980
Filed:
Sep. 18, 1978
Applicant:
Inventors:
Katsuyoshi Chiba, Hachioji, JP;
Yoshiki Kato, Hinodemachi, JP;
Teruo Tsunoda, Nanpeidaimachi, JP;
Hajime Fukke, Inagi, JP;
Teruaki Kobayashi, Hachioji, JP;
Heigo Ishihara, Kokubunji, JP;
Waichi Nagashiro, Hachioji, JP;
Munehisa Mitsuya, Tokyo, JP;
Assignee:
Hitachi, Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
427 48 ; 427128 ;
Abstract
A process for the preparation of a magnetic recording medium comprising;
Chiba, Katsuyoshi. (1980). Process for the preparation of magnetic recording medium (U.S. Patent No. 4189508). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4189508
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile