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:
Nov. 09, 2021
Filed:
Nov. 06, 2018
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Shusaku Umemoto, Tokyo, JP;
Takashi Suzuki, Tokyo, JP;
Hidekazu Sato, Tokyo, JP;
Masaki Takahashi, Tokyo, JP;
Shinichi Kondo, Tokyo, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C 10/00 (2006.01); C03C 4/16 (2006.01); H01F 27/32 (2006.01); H01F 41/02 (2006.01); H01F 27/28 (2006.01); H01F 41/04 (2006.01); H01F 27/29 (2006.01); H01F 17/00 (2006.01); H01F 41/12 (2006.01);
U.S. Cl.
CPC ...
C03C 10/0036 (2013.01); C03C 4/16 (2013.01); C03C 10/0018 (2013.01); C03C 10/0045 (2013.01); C03C 10/0054 (2013.01); H01F 17/0006 (2013.01); H01F 17/0013 (2013.01); H01F 27/2804 (2013.01); H01F 27/292 (2013.01); H01F 27/32 (2013.01); H01F 27/323 (2013.01); H01F 41/02 (2013.01); H01F 41/041 (2013.01); H01F 41/127 (2013.01); C03C 2204/00 (2013.01); C03C 2214/16 (2013.01); H01F 2027/2809 (2013.01);
Abstract
A glass ceramics sintered body includes a glass phase and a ceramics phase dispersed in the glass phase. The ceramics phase includes alumina grains and zirconia grains. The glass phase includes an MO—AlO—SiO—BObased glass, where M is an alkaline earth metal. An area ratio of the alumina grains is 13 to 30%, and an area ratio of the zirconia grains is 0.05 to 6%, on a cross section of the sintered body.