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:
Aug. 13, 2002
Filed:
Jan. 31, 1996
Yasuhiro Uchida, Kariya, JP;
Takashi Kojima, Kariya, JP;
Masahiro Hamaya, Kariya, JP;
Minoru Ota, Kariya, JP;
Denso Corporation, , JP;
Abstract
An oxygen concentration detector comprises a solid electrolyte , a sensing element which consists of the solid electrolyte coated on the surface with an outer electrode , a heater provided inside the solid electrolyte , and a protecting cover which protects the sensing element . The protecting cover has two levels of openings , the outer electrode is constructed within the range defined by the length of the heat-generating part of the heater , and the relationship between the length L of the heat-generating part and the distance between the openings L of the two levels of openings in the axial direction is such that L /L =0.9 to 1.3.