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:
May. 04, 2004
Filed:
Jan. 16, 2002
Applicant:
Inventors:
Chikara Yokoyama, Hyogo, JP;
Yuji Funaba, Tokyo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 7/00 ; G11C 8/00 ;
U.S. Cl.
CPC ...
G11C 7/00 ; G11C 8/00 ;
Abstract
When a power supply detection unit detects an OFF command of a battery , a DRAM is changed to a self-refresh mode. Then, power is fed from a backup power supply to the DRAM
Yokoyama, Chikara. (2004). Data backup device and step-up/step-down power supply (U.S. Patent No. 6731563). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6731563
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile