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. 20, 2020
Filed:
Apr. 07, 2017
Applicant:
Nippon Electric Glass Co., Ltd., Otsu-shi, Shiga, JP;
Inventor:
Masayuki Hirose, Shiga, JP;
Assignee:
NIPPON ELECTRIC GLASS CO., LTD., Shiga, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 8/24 (2006.01); C03C 8/04 (2006.01); C04B 35/19 (2006.01); C04B 35/14 (2006.01);
U.S. Cl.
CPC ...
C03C 8/24 (2013.01); C03C 8/04 (2013.01); C04B 35/14 (2013.01); C04B 35/19 (2013.01); C03C 2204/00 (2013.01); C03C 2205/00 (2013.01); C04B 2235/3203 (2013.01); C04B 2235/3217 (2013.01); C04B 2235/3232 (2013.01); C04B 2235/3244 (2013.01); C04B 2235/3418 (2013.01); C04B 2235/3472 (2013.01); C04B 2235/36 (2013.01); C04B 2235/5436 (2013.01); C04B 2235/5454 (2013.01);
Abstract
Provided is a ceramic powder having precipitated therein β-eucryptite or a β-quartz solid solution as a main crystal phase, having an average particle diameter Dof 20 μm or less, and having a negative thermal expansion coefficient in a range of from 30° C. to 300° C.