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:
Sep. 26, 2017
Filed:
May. 20, 2016
Applicant:
Ngk Insulators, Ltd., Nagoya, JP;
Inventors:
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B 35/195 (2006.01); C04B 37/00 (2006.01); C04B 35/645 (2006.01); C30B 33/06 (2006.01);
U.S. Cl.
CPC ...
C04B 35/195 (2013.01); C04B 35/645 (2013.01); C04B 35/6455 (2013.01); C04B 37/00 (2013.01); C30B 33/06 (2013.01); C04B 2235/3272 (2013.01); C04B 2235/3418 (2013.01); C04B 2235/3481 (2013.01); C04B 2235/5445 (2013.01); C04B 2235/6562 (2013.01); C04B 2235/6565 (2013.01); C04B 2235/6567 (2013.01); C04B 2235/662 (2013.01); C04B 2235/72 (2013.01); C04B 2235/76 (2013.01); C04B 2235/77 (2013.01); C04B 2235/80 (2013.01); C04B 2235/96 (2013.01); C04B 2235/963 (2013.01); C04B 2235/9646 (2013.01); C04B 2237/30 (2013.01); C04B 2237/52 (2013.01); C04B 2237/55 (2013.01);
Abstract
In an X-ray diffraction diagram of a cordierite sintered body of the present invention, the ratio of the total of the maximum peak intensities of components other than cordierite components to the peak top intensity of the () plane of cordierite is 0.0025 or less. Since having a significantly small amount of different phases other than the cordierite components, this cordierite sintered body has a high surface flatness when the surface thereof is mirror-polished.