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:
Sep. 28, 1993
Filed:
Apr. 10, 1992
Applicant:
Inventors:
Assignee:
Oki Electric Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G01D / ; G01D / ;
U.S. Cl.
CPC ...
346151 ; 3461531 ; 3461351 ; 428913 ;
Abstract
An image forming apparatus which permits reversible recording and erasure by a heating means, and permits storage, display, printing or reproduction of an image or other information. The present apparatus thermoreversibly records an image on a matrix material of a copolymer of styrene and butadiene and a low molecular weight, saturated carboxylic acid, preferably containing from 10 to 24 carbon atoms, and where the weight ratio of the matrix material to carboxylic acid is from 1:1 to 20:1.