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.

Date of Patent:
Sep. 27, 1977

Filed:

Jan. 23, 1976
Applicant:
Inventors:

Shinichiro Yamada, Tokyo, JA;

Akira Ishida, Tokyo, JA;

Hisakazu Mukai, Musashino, JA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364900 ; 235312 ;
Abstract

An information storage device comprising an information storage unit consisting of a plurality of memory blocks each consisting of a plurality of memory cells, and means for storing therein the address information uniquely corresponding to said memory blocks including some inoperative memory blocks, whereby when the address information uniquely corresponding to a desired memory block is entered, said address information may be modified with the information stored in said means so that one of the memory blocks not including an inoperative memory cell may be selected.


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