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:
Jul. 14, 2020
Filed:
Aug. 17, 2016
Applicant:
Ngk Insulators, Ltd., Nagoya-shi, Aichi, JP;
Inventors:
Yusuke Watanabe, Nagoya, JP;
Takao Murase, Konan, JP;
Masashi Yasui, Nagoya, JP;
Rui Sakaguchi, Nagoya, JP;
Assignee:
NGK INSULATORS, LTD., Nagoya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 27/406 (2006.01); H05B 1/02 (2006.01); H05B 3/26 (2006.01);
U.S. Cl.
CPC ...
G01N 27/4067 (2013.01); H05B 1/0247 (2013.01); H05B 3/265 (2013.01);
Abstract
A heaterof a heater portion includes linear portionsand bend portions. A resistance value per unit length of the bend portionsat least at a temperature within a temperature range of no less than 700° C. and no more than 900° C. is lower than a resistance value per unit length of the linear portions