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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.:

US 12577178 B1

PDFFull Text
Date of Patent:
Mar. 17, 2026

Filed:

Jun. 01, 2021

Sliding member and method of manufacturing sliding member

Applicant:

Kyocera Corporation, Kyoto, JP;

Inventors:

Takayuki Murakami, Oumiyahata, JP;

Taito Nakamura, Yasu, JP;

Junji Ikeda, Osaka, JP;

Assignee:

KYOCERA Corporation, Kyoto, JP;

Attorney:

Procopio, Cory, Hargreaves & Savitch LLP

Primary Examiner:

Anita K Alanko

Int. Cl.
CPC ...
C04B 41/53 (2006.01); C04B 41/91 (2006.01); C09K 13/04 (2006.01); A61F 2/30 (2006.01); A61F 2/36 (2006.01); A61L 27/10 (2006.01); A61L 27/18 (2006.01); C04B 35/10 (2006.01);
U.S. Cl.
CPC ...
C04B 41/5353 (2013.01); C04B 41/91 (2013.01); C09K 13/04 (2013.01); A61F 2/3094 (2013.01); A61F 2/3609 (2013.01); A61F 2002/3611 (2013.01); A61F 2310/00203 (2013.01); A61F 2310/00239 (2013.01); A61L 27/105 (2013.01); A61L 27/18 (2013.01); A61L 2430/02 (2013.01); C04B 35/10 (2013.01); C04B 2235/3217 (2013.01); C04B 2235/3244 (2013.01); C04B 2235/786 (2013.01); C04B 2235/963 (2013.01);
Abstract

To provide a sliding member having improved wear resistance, and a method of manufacturing the sliding member. A femoral head ball according to an aspect of the present disclosure includes a composite ceramic containing alumina and at least one oxide other than alumina. A surface roughness Ra of the sliding surface when the femoral head ball slides against a constituent member constituting an artificial joint is not more than 0.01 μm. The sliding surface includes a plurality of recessed portions each having an opening diameter of not more than 2 μm.

Find Patent Forward Citations

Murakami, Takayuki. (2026). Sliding member and method of manufacturing sliding member (U.S. Patent No. 12577178). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12577178

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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