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:
Jul. 29, 1986
Filed:
Jul. 16, 1982
Applicant:
Inventors:
Takashi Narasawa, Kanagawa, JP;
Makoto Fujiki, Tokyo, JP;
Tatsuzo Ushiro, Tokyo, JP;
Hiroo Edakubo, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ; G11B / ;
U.S. Cl.
CPC ...
360 84 ; 360107 ; 36013024 ;
Abstract
A rotary head device for a rotary head-type magnetic recording/reproducing apparatus comprising a fixed drum and a rotary member which has a magnetic head disposed therein is provided with a ball bearing which is formed by inserting a plurality of rolling members into annular grooves which are respectively formed in the fixed drum and the rotary member on their opposed sides and are located adjacently to their peripheries.