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:
Aug. 16, 1983
Filed:
Sep. 26, 1980
Applicant:
Inventor:
Hajime Masuda, Tokyo, JP;
Assignee:
Nippon Electric Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365180 ; 365149 ;
Abstract
In a semiconductor memory device of the type having PNPN elements for transferring checking and programming currents to a memory cell, and a trigger circuit for activating the PNPN elements at a predetermined potential, a voltage limiting circuit is provided to activate the PNPN elements prior to achieving the triggering potential so that large voltage spikes through the memory elements during the memory checking operation can be prevented.
Masuda, Hajime. (1983). Monolithic integrated circuit (U.S. Patent No. 4399521). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4399521
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile