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:
Feb. 11, 1997
Filed:
Jan. 13, 1995
Applicant:
Inventor:
Kazuhiro Chigita, Yokohama, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369 13 ; 369243 ; 369 53 ;
Abstract
The magneto-optical disk drive apparatus according to the present invention sends a notice for inhibition of writing write data into a magneto-optical disk to a host computer when a volume of electric charge in a secondary battery has not reached a predetermined level, so that, even when power supply from outside is disconnected, write data already stored in a write buffer can safely and accurately be written into a magneto-optical disk.
Chigita, Kazuhiro. (1997). Disk drive apparatus and method including power backup (U.S. Patent No. 5602805). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5602805
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