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:
May. 14, 1985
Filed:
Jan. 20, 1984
Applicant:
Inventors:
Tsuneyoshi Kawahito, Yokohama, JP;
Katsuo Abe, Yokosuka, JP;
Tsuneaki Kamei, Kanagawa, JP;
Kazuyuki Fujimoto, Tokyo, JP;
Masao Mitani, Yokohama, JP;
Shigetoshi Hiratsuka, Yokohama, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D / ; H05B / ; H01C / ;
U.S. Cl.
CPC ...
219216 ; 252512 ; 338309 ;
Abstract
Disclosed is a thermal printhead made of an insulating substrate, and a heat generating resistor layer formed on the substrate, and wherein the heat generating resistor layer is supplied with electric current. The heat generating resistor layer is made of Cr-Si-SiO alloy, and with the Cr, Si and SiO contents falling within a region defined by points A, B, C and D in a triangular diagram, where the points A, B, C and D are determined as follows: