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:
Oct. 09, 2018
Filed:
May. 21, 2014
Applicant:
Ngk Spark Plug Co., Ltd., Nagoya-shi, Aichi, JP;
Inventor:
Katsuki Aoi, Kani, JP;
Assignee:
NGK SPARK PLUG CO., LTD., Nagoya, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01L 23/22 (2006.01); G01L 19/06 (2006.01); G01L 23/26 (2006.01);
U.S. Cl.
CPC ...
G01L 23/222 (2013.01); G01L 19/0681 (2013.01); G01L 23/26 (2013.01);
Abstract
Provided is a knocking sensor with a support member, a piezoelectric element, a pair of electrode parts, a resistor and a case. The resistor has a resistor body formed with a metal film and connected in parallel to the pair of electrode parts. The resistor also has an outer coating film applied to cover the metal film. The outer coating film is formed of a resin material having a higher thermal deformation temperature than that of a resin material of the case.