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:
Mar. 29, 1994
Filed:
Jul. 05, 1991
Applicant:
Inventors:
Yoshihiko Hotta, Mishima, JP;
Keishi Kubo, Yokohama, JP;
Shoji Maruyama, Yokohama, JP;
Takashi Yano, Tokyo, JP;
Hajime Takayama, Tokyo, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B41M / ; B41M / ;
U.S. Cl.
CPC ...
503201 ; 428195 ; 428913 ; 503208 ; 503209 ; 503214 ; 503217 ; 503225 ; 503226 ;
Abstract
A rewritable bar code display medium is disclosed, which is composed of a support and a reversible thermosensitive recording layer for reversibly forming bar codes therein formed on the support, which reversible thermosensitive recording layer varies in transparency with change in temperature, and an image display method using the rewritable bar code display medium, and an apparatus for implementing the image display method are also disclosed.