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:
Feb. 19, 1985
Filed:
Aug. 03, 1982
Hideaki Takahashi, Aichi, JP;
Kiyoharu Hayakawa, Aichi, JP;
Haruyoshi Kondo, Aichi, JP;
Takashi Takeuchi, Aichi, JP;
Kabushiki Kaisha Toyota Chuo Kenkyusho, Aichi, JP;
Abstract
A sensor which has an insulating substrate on which is formed a heater layer for heating the sensor on a part thereof and which is operated above a predetermined temperature. The heater layer is made of a material which has a thickness of 0.2 .mu.m to 20 .mu.m and which is made of platinum, rhodium, palladium or a mixture thereof. The insulating substrate is made of alumina, quartz, spinel, magnesia, zirconia, or mixtures thereof. A heater protective layer having a thickness of 0.01 .mu.m to 500 .mu.m is made of materials based on alumina, silica, spinel, magnesia, zirconia or mixtures thereof.