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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.:

US 5034597 B1

PDFFull Text
Date of Patent:
Jul. 23, 1991

Filed:

May. 13, 1988

Ic cards and information storage circuit therefor

Applicant:
Inventors:

Shiro Atsumi, Tokyo, JP;

Shintaro Kotani, Tokyo, JP;

Sadao Watahiki, Tokyo, JP;

Kohji Tanagawa, Tokyo, JP;

Assignee:

Oki Electric Industry Co., Ltd., Tokyo, JP;

Attorney:

Wenderoth, Lind & Ponack

Primary Examiner:

David Trafton

Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
235380 ; 235379 ; 235492 ;
Abstract

An IC card having a self-identification function in the card itself includes an input key for inputting a personal identification number (PIN), a comparator for comparing the PIN input via the input key with a prerecorded PIN. A transaction condition signal is produced when a match is found. An external terminal is provided for outputting to the outside of the card, e.g. a bank terminal, to enable a transaction using of the the card. An information storage circuit suitable for use in the IC card is also disclosed.

Find Patent Forward Citations

Atsumi, Shiro. (1991). Ic cards and information storage circuit therefor (U.S. Patent No. 5034597). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5034597

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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