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:
Jun. 14, 1988
Filed:
Jun. 27, 1986
Applicant:
Inventors:
Takatoshi Ishikawa, Furukawa, JP;
Masakazu Kato, Furukawa, JP;
Assignee:
Alps Electric Co., Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D / ; H05B / ; H01C / ; B32B / ;
U.S. Cl.
CPC ...
346 / ; 219216 ; 338308 ; 427402 ; 427404 ;
Abstract
Disclosed is a heating resistor composed of tungsten of 35-45 at. %, aluminum of 25-35 at. %, nitrogen of 10-20 at. %, and oxygen of 5-20 at. %, and a thermal head comprising a heating resistor layer composed of tungsten of 35-45 at. %, aluminum of 25-35 at. %, nitrogen of 10-20 at. %, and oxygen of 5-20 at. %.