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. 20, 2000
Filed:
Sep. 30, 1998
Applicant:
Inventor:
Minoru Kaneko, Gunma, JP;
Assignees:
Akebono Brake Industry Co., Ltd., Tokyo, JP;
Akebono Research and Development Centre Ltd., Hanyu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B / ;
U.S. Cl.
CPC ...
73-106 ;
Abstract
In the present sensor element failure or end of life judging method, the internal impedance of a gas sensor element is measured and, if the thus measured internal impedance goes beyond a previously determined threshold value, then it is judged that the gas sensor element fails or comes to the end of life.