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:
May. 19, 2026
Filed:
Mar. 30, 2020
Applicants:
Saga University, Saga, JP;
Kyocera Corporation, Kyoto, JP;
Inventors:
Masaaki Mawatari, Saga, JP;
Iwao Noda, Kyoto, JP;
Assignees:
SAGA University, Saga, JP;
KYOCERA Corporation, Kyoto, JP;
Primary Examiner:
Int. Cl.
CPC ...
A61F 2/36 (2006.01); A61F 2/30 (2006.01); A61L 27/32 (2006.01); B05D 3/12 (2006.01); B05D 5/02 (2006.01);
U.S. Cl.
CPC ...
A61F 2/3662 (2013.01); A61F 2/3094 (2013.01); A61L 27/32 (2013.01); B05D 3/12 (2013.01); B05D 5/02 (2013.01); A61F 2002/30321 (2013.01); A61F 2002/30324 (2013.01); A61F 2002/30326 (2013.01); A61F 2002/30971 (2013.01); A61F 2310/00796 (2013.01);
Abstract
In the present disclosure, an artificial joint stem includes a base and a coating film located on the base. The base includes a first region, a second region, and a third region located in sequence. The coating film contains a calcium phosphate-based material and an antimicrobial material. The coating film is located across the first region and the second region, and the third region is exposed from the coating film. The surface of the coating film located in the first region has a larger surface roughness than the surface of the base in the third region.