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. 16, 1985
Filed:
Nov. 18, 1982
Applicant:
Inventors:
Yougo Imai, Tokyo, JP;
Hideo Takenaga, Tokyo, JP;
Assignee:
Olympus Optical Company Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
360 66 ;
Abstract
In the disclosed tape recorder, the erase head is supplied with DC erasing current during recording and is connectable with an AC erase unit which supplies AC erasing current instead of the DC erasing current to offer high-quality recording and replay.
Quick Actions:
Imai, Yougo. (1985). Tape recorder (U.S. Patent No. 4511935). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4511935
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