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. 25, 1999
Filed:
Sep. 29, 1997
Applicant:
Inventor:
Naoto Tomita, Yokohama, JP;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
36518518 ; 3651852 ; 36518523 ;
Abstract
In a power source circuit device used for a non-volatile semiconductor memory, by erasing data with a gate voltage of a memory cell set to V, an external high voltage power source connected to the memory cell is replaced with a charge pump, and a charge pump circuit, a boost circuit consisting of a power source switch circuit, and a boost circuit consisting of a charge pump are provided in a semiconductor device.
Tomita, Naoto. (1999). Power source circuit device used for a semiconductor memory (U.S. Patent No. 5907505). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5907505
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile