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:
Sep. 26, 1995
Filed:
May. 22, 1991
Applicant:
Inventors:
Shinichi Hasegawa, Chiba, JP;
Yoichirou Senshu, Kanagawa, JP;
Kenichi Fukahori, Kanagawa, JP;
Akihiro Uetake, Tokyo, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ; G11B / ;
U.S. Cl.
CPC ...
360107 ; 360 84 ;
Abstract
In a digital magnetic recording and/or reproducing apparatus, a magnetic head comprises a plurality of head chips mounted closely together in parallel with each other on a rotary drum member which is rotatably supported by dynamic pressure bearing in which a sleeve and a shaft inserted therein are relatively rotatably supported by fluid under pressure therebetween.