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:
Dec. 14, 2021
Filed:
Mar. 20, 2017
Applicant:
Ngk Insulators, Ltd., Nagoya, JP;
Inventors:
Yoshinori Isoda, Ichinomiya, JP;
Yoshio Suzuki, Nagoya, JP;
Katsuhiro Inoue, Ama-Gun, JP;
Yuji Katsuda, Tsushima, JP;
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B 35/195 (2006.01); C04B 35/626 (2006.01); C04B 35/645 (2006.01); C04B 37/00 (2006.01); H01L 41/00 (2013.01);
U.S. Cl.
CPC ...
C04B 35/195 (2013.01); C04B 35/62605 (2013.01); C04B 35/62675 (2013.01); C04B 35/645 (2013.01); C04B 35/6455 (2013.01); C04B 37/00 (2013.01); H01L 41/00 (2013.01); C04B 2235/3206 (2013.01); C04B 2235/3481 (2013.01); C04B 2235/3873 (2013.01); C04B 2235/5436 (2013.01); C04B 2235/5445 (2013.01); C04B 2235/604 (2013.01); C04B 2235/656 (2013.01); C04B 2235/6562 (2013.01); C04B 2235/6567 (2013.01); C04B 2235/74 (2013.01); C04B 2235/76 (2013.01); C04B 2235/77 (2013.01); C04B 2235/785 (2013.01); C04B 2235/786 (2013.01); C04B 2235/80 (2013.01); C04B 2235/96 (2013.01); C04B 2235/963 (2013.01); C04B 2235/9607 (2013.01); C04B 2237/341 (2013.01); C04B 2237/704 (2013.01); Y10T 428/249956 (2015.04); Y10T 428/249967 (2015.04); Y10T 428/249986 (2015.04);
Abstract
A cordierite-based sintered body according to the present invention contains cordierite as a main component and silicon nitride or silicon carbide. The cordierite-based sintered body preferably has a thermal expansion coefficient less than 2.4 ppm/° C. at 40° C. to 400° C., an open porosity of 0.5% or less, and an average grain size of 1 μm or less.