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:
Dec. 01, 1981
Filed:
Jun. 19, 1980
Applicant:
Inventors:
Ryoichi Sudo, Yokosuka, JP;
Masaaki Okunaka, Fujisawa, JP;
Hitoshi Yokono, Yokohama, JP;
Tokio Isogai, Fujisawa, JP;
Mitsuo Yamazaki, Hitachi, JP;
Assignees:
Hitachi, Ltd., Tokyo, JP;
Hitachi Chemical Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B / ;
U.S. Cl.
CPC ...
252518 ; 106-105 ; 252500 ; 4271262 ; 4271263 ; 4273722 ; 427108 ; 427110 ;
Abstract
Transparent electroconductive film having no cracks and whitening is obtained by coating on a substrate a composition comprising an inorganic indium salt, a polybasic carboxylic acid or polybasic carboxylic acid anhydride and a solvent, and calcining the coated composition at a temperature of 300.degree. to 700.degree. C. under an atmosphere containing oxygen. When a tin compound is added to the composition, sheet resistance of the transparent electroconductive film can be adjusted favorably.