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:
Mar. 31, 1987
Filed:
Mar. 05, 1985
Applicant:
Inventor:
Kiyoshi Wakaizumi, Tokyo, JP;
Assignee:
Janome Sewing Machine Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360 97 ; 360 99 ;
Abstract
An index signal issue mechanism of a magnetic record and reproducing device has a magnetic disc, a spindle hub which chuck and rotates the magnetic disc and has a lower surface, a driving pin arranged on the spindle hub and engaging the spindle hub, a support spring secured to said lower surface of said spindle hub and supporting said driving pin, a reflection plate extending to said support spring, and a photo sensor arranged opposite to said reflection plate.
Quick Actions:
Wakaizumi, Kiyoshi. (1987). Index signal issue mechanism of a magnetic record and reproduction device (U.S. Patent No. 4654725). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4654725
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile