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. 29, 2024
Filed:
Oct. 04, 2022
Applicant:
Ngk Spark Plug Co., Ltd., Nagoya, JP;
Inventor:
Yuki Takahashi, Nagoya, JP;
Assignee:
NITERRA CO., LTD., Nagoya, JP;
Primary Examiner:
Int. Cl.
CPC ...
C04B 35/505 (2006.01); C04B 35/626 (2006.01); C04B 35/634 (2006.01); C04B 35/645 (2006.01);
U.S. Cl.
CPC ...
C04B 35/505 (2013.01); C04B 35/6261 (2013.01); C04B 35/6264 (2013.01); C04B 35/62655 (2013.01); C04B 35/62695 (2013.01); C04B 35/63416 (2013.01); C04B 35/645 (2013.01); C04B 2235/3225 (2013.01); C04B 2235/3244 (2013.01); C04B 2235/6567 (2013.01);
Abstract
An yttrium oxide-based sintered body contains yttrium oxide as a main constituent and 0.1 wt % or more and 5.0 wt % or less of zirconium on a ZrObasis. Such an yttrium oxide-based sintered body made with yttrium oxide and a certain amount of zirconium oxide therein is highly resistant to corrosive chemicals while maintaining superior resistance to plasma and corrosive gases.