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. 04, 2014
Filed:
Aug. 20, 2010
Yoshihisa Ito, Aichi, JP;
Yoshihisa Yamada, Aichi, JP;
Hiroshi Inada, Aichi, JP;
Kiyoko Ban, Aichi, JP;
Yoshihisa Ito, Aichi, JP;
Yoshihisa Yamada, Aichi, JP;
Hiroshi Inada, Aichi, JP;
Kiyoko Ban, Aichi, JP;
Noritake Co., Limited, Nagoya-Shi, Aichi, JP;
Abstract
Provided is a high-strength zirconia sintered body in which the progression of low-temperature degradation is inhibited. The zirconia sintered body contains partially-stabilized zirconia as a matrix phase and contains at least one element from among phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi). The content of the abovementioned element(s) in the zirconia sintered body ranges from 4×10mol to 4×10mol with respect to 1 mol of zirconium(IV) oxide. Preferably, the zirconia sintered body further contains 0.03% to 3% by mass of silicon dioxide.