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:
Apr. 20, 1976
Filed:
Aug. 05, 1974
Applicant:
Inventors:
Kimiaki Yoshino, Moriguchi, JA;
Wataru Shimotsuma, Hirakata, JA;
Kin-ichi Adachi, Takarazuka, JA;
Yoichi Sekine, Katano, JA;
Fujio Oda, Ashiya, JA;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21H / ; G01D / ; G02B / ;
U.S. Cl.
CPC ...
204-2 ; 346 / ; 346135 ; 427152 ;
Abstract
Improvement in a method for producing electrorecording paper consisting of an electroconductive material of cuprous iodide, a heat sensitive color forming material and a support and forming color in response to an electric signal when current is caused to flow, which comprises adding a reducing agent to a suspension of cuprous iodide to increase resistance of cuprous iodide and to whiten the ground color.