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:
Sep. 20, 2011
Filed:
Apr. 07, 2008
Kiyohito Ishida, Sendai, JP;
Kiyoshi Yamauchi, Sendai, JP;
Ryosuke Kainuma, Natori, JP;
Yuji Sutou, Sendai, JP;
Toshihiro Omori, Sendai, JP;
Kiyohito Ishida, Sendai, JP;
Kiyoshi Yamauchi, Sendai, JP;
Ryosuke Kainuma, Natori, JP;
Yuji Sutou, Sendai, JP;
Toshihiro Omori, Sendai, JP;
Japan Science and Technology Agency, Saitama, JP;
Abstract
A Co-based alloy having a fundamental composition of Co—Al system containing 3-15% Al and having lamellar structure wherein f.c.c. structure α-phase and β(B2)-phase are superimposed on each other in layers, and the Co-based alloy is modified so as to have a porous surface layer region effective for chemical retaining capability, sustained release, biocompatibility, etc. through selective removal of either the α-phase or the β-phase from the surface layer. As a third component, at least one member selected from among Ni, Fe, Mn, Ga, Cr, V, Ti, Mo, Nb, Zr, W, Ta, Hf, Si, Rh, Pd, Ir, Pt, Au, B, C and P may be contained in a total amount of 0.001 to 60%.