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.

Date of Patent:
Feb. 12, 1991

Filed:

Mar. 22, 1990
Applicant:
Inventor:

Makoto Shiho, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ; G11B / ;
U.S. Cl.
CPC ...
369 13 ; 360114 ; 360137 ;
Abstract

An opto-magnetic recording apparatus for radiating a light beam onto an opto-magnetic recording medium. The opto-magnetic recording apparatus includes a magnet for generating a magnetic field for biasing the opto-magnetic recording medium while the same is irradiated by light, thereby recording information thereon. The opto-magnetic recording apparatus is adapted to receive the opto-magnetic recording medium in a direction extending substantially along a recording surface of the opto-magnetic recording medium. The opto-magnetic recording apparatus further includes a mechanism for removing the magnet from an insertion path when the opto-magnetic recording medium is inserted.


Find Patent Forward Citations

Shiho, Makoto. (1991). Opto-magnetic recording apparatus with a bias magnetic field generating (U.S. Patent No. 4993009). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4993009

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…