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. 18, 2014
Filed:
Jul. 06, 2012
Applicants:
Jun Moteki, Inuyama, JP;
Yusuke Katsu, Komaki, JP;
Kuniharu Tanaka, Komaki, JP;
Takeshi Mitsuoka, Konan, JP;
Yoshihiro Kuroki, Komaki, JP;
Hironobu Kusanagi, Komaki, JP;
Inventors:
Jun Moteki, Inuyama, JP;
Yusuke Katsu, Komaki, JP;
Kuniharu Tanaka, Komaki, JP;
Takeshi Mitsuoka, Konan, JP;
Yoshihiro Kuroki, Komaki, JP;
Hironobu Kusanagi, Komaki, JP;
Assignee:
NGK Spark Plug Co., Ltd., Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 35/119 (2006.01); B23B 27/14 (2006.01); C04B 35/626 (2006.01); C04B 35/645 (2006.01); C04B 35/488 (2006.01);
U.S. Cl.
CPC ...
B23B 27/148 (2013.01); C04B 35/62695 (2013.01); C04B 35/119 (2013.01); C04B 35/6455 (2013.01); C04B 2235/3262 (2013.01); C04B 2235/765 (2013.01); C04B 2235/3225 (2013.01); C04B 2235/96 (2013.01); C04B 2235/3208 (2013.01); C04B 2235/72 (2013.01); C04B 35/4885 (2013.01); C04B 2235/3418 (2013.01); C04B 2235/785 (2013.01); C04B 2235/85 (2013.01);
Abstract
A sintered body containing alumina crystal particles and zirconia crystal particles as main components includes the tetragonal crystal particles as the zirconia crystal particles. The zirconia crystal particles satisfy relations 0%≦A≦3%, 3%≦B≦22% and 77%≦C≦96%,where A, B and C are as defined herein.