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:
Jan. 03, 1984
Filed:
Apr. 21, 1980
Applicant:
Inventors:
Toshitaka Fukushima, Yokohama, JP;
Kazumi Koyama, Kanagawa, JP;
Kouji Ueno, Kawasaki, JP;
Tamio Miyamura, Kawasaki, JP;
Yuichi Kawabata, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365189 ;
Abstract
A semiconductor memory device which writes information by rendering particular memory cells conductive or non-conductive, wherein, when a selected memory cell is to be read out, a power supply voltage is applied to the collector of a transistor which feeds a base current to a final stage transistor of a decoder circuit which is connected to word lines, and when information is to be written in, a voltage higher than the power supply voltage is applied to the same collector.