Title:
MEDICAL AU–PT–PD ALLOY
Document Type and Number:
WIPO Patent Application WO/2021/060313
Kind Code:
A1
Abstract:
The present invention pertains to an Au-Pt–Pd alloy for medical applications, comprising Au, Pt, Pd, and unavoidable impurities. This alloy has an alloy composition inside a polygon (A1–A2–A3–A4) encased by straight lines between points A1 (53 at.% Au, 4 at.% Pt, 43 at.% Pd), A2 (70 at.% Au, 4 at.% Pt, 26 at.% Pd), A3 (69.9 at.% Au, 30 at.% Pt, 0.1 at.% Pd), and A4 (49.9 at.% Au, 50 at.% Pt, 0.1 at.% Pd) in an Au-Pt-Pd ternary phase diagram. In addition, at least either an Au rich phase or a Pt rich phase are distributed in the metal composition of this alloy. The total area ratio of the Au rich phase and Pt rich phase is 1.5%–25.4%.
Inventors:
OKUBO MICHIMASA (JP)
GOTO KENJI (JP)
TANAKA KUNIHIRO (JP)
SHIRAISHI KOJIRO (JP)
SHIMA KUNIHIRO (JP)
KATO YUYA (JP)
HAMADA KENICHI (JP)
HONDA EIICHI (JP)
TAKEGAWA EMI (JP)
GOTO KENJI (JP)
TANAKA KUNIHIRO (JP)
SHIRAISHI KOJIRO (JP)
SHIMA KUNIHIRO (JP)
KATO YUYA (JP)
HAMADA KENICHI (JP)
HONDA EIICHI (JP)
TAKEGAWA EMI (JP)
Application Number:
PCT/JP2020/035902
Publication Date:
April 01, 2021
Filing Date:
September 24, 2020
Export Citation:
Assignee:
TANAKA PRECIOUS METAL IND (JP)
UNIV TOKUSHIMA (JP)
UNIV TOKUSHIMA (JP)
International Classes:
C22C5/02; A61L29/02; A61L31/02; C22F1/00; C22F1/14
Domestic Patent References:
| WO2015093064A1 | 2015-06-25 | |||
| WO2008032370A1 | 2008-03-20 |
Foreign References:
| JP2016130351A | 2016-07-21 | |||
| JP2016094656A | 2016-05-26 | |||
| JPH09125223A | 1997-05-13 | |||
| JP5582484B1 | 2014-09-03 |
Other References:
See also references of EP 3878987A4
Attorney, Agent or Firm:
TANAKA AND OKAZAKI (JP)
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