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. 26, 2010
Filed:
Oct. 29, 2004
Kunihide Shikata, Kirishima, JP;
Takefumi Nakanishi, Gamo-cho, JP;
Yucong Wang, Kirishima, JP;
Kyocera Corporation, Kyoto, JP;
Abstract
A biomedical member having high strength, high toughness and high hardness and an artificial joint that uses the same are provided. In addition, a biomedical member that exhibits high wear resistance even in in vivo environment and an artificial joint are provided. Such a composite ceramic is used that contains 65% by weight or more AlO, 4 to 34% by weight of ZrOand 0.1 to 4% by weight of SrO, while Sr forms a solid solution with part of the ZrOgrains. The composite ceramics further contains TiO, MgO and SiOas sintering additives, while controlling the amounts to 0.20% by weight or more SiO, 0.22% by weight or more TiOand 0.12% by weight or more MgO, and the total amount of SiO, TiOand MgO within a range from 0.6 to 4.5% by weight.