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:
Jul. 08, 2025
Filed:
Feb. 15, 2023
Applicant:
Ngk Insulators, Ltd., Nagoya, JP;
Inventors:
Akiyoshi Hattori, Nagoya, JP;
Koji Ueda, Nagoya, JP;
Hitoshi Nishio, Shizuoka, JP;
Tomohisa Mizoguchi, Nagoya, JP;
Assignee:
NGK INSULATORS, LTD., Nagoya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 21/683 (2006.01); C01B 21/082 (2006.01); C04B 35/581 (2006.01); H01J 37/32 (2006.01);
U.S. Cl.
CPC ...
H01L 21/6833 (2013.01); C01B 21/0825 (2013.01); C04B 35/581 (2013.01); C01P 2002/72 (2013.01); C01P 2006/40 (2013.01); C01P 2006/80 (2013.01); C04B 2235/3232 (2013.01); C04B 2235/3869 (2013.01); C04B 2235/9669 (2013.01); H01J 37/32715 (2013.01); H01J 2237/2007 (2013.01);
Abstract
A ceramic material that has a high resistivity and high corrosion resistance according to the present invention contains magnesium-aluminum oxynitride and has a carbon content of 0.005 to 0.275 mass %.