Medical Au-Pt-Pd alloy

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United States of America Patent

PATENT NO 11453931
APP PUB NO 20220213576A1
SERIAL NO

17607397

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Abstract

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The present invention relates to a medical Au—Pt—Pd alloy including Au, Pt, Pd, and inevitable impurities. The alloy has an alloy composition inside a polygon (A1-A2-A3-A4-A5-A6) surrounded by straight lines connected at point A1 (Au: 37.9 atom %, Pt: 0.1 atom %, and Pd: 62 atom %), point A2 (Au: 79.9 atom %, Pt: 0.1 atom %, and Pd: 20 atom %), point A3 (Au: 79.9 atom %, Pt: 20 atom %, and Pd: 0.1 atom %), point A4 (Au: 69.9 atom %, Pt: 30 atom %, and Pd: 0.1 atom %), point A5 (Au: 49 atom %, Pt: 30 atom %, and Pd: 21 atom %), and point A6 (Au: 39 atom %, Pt: 40 atom %, and Pd: 21 atom %) in a Au—Pt—Pd ternary state diagram. The metal structure of the alloy is optimized, and the metal structure is close to a single-phase structure, and has little precipitation of a Au-rich phase and a Pt-rich phase different in composition from a mother phase.

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Patent Owner(s)

Patent OwnerAddress
TANAKA KIKINZOKU KOGYO K KCHIYODA-KU TOKYO 100-6422
TOKUSHIMA UNIVERSITYTOKUSHIMA 770-8501

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Goto, Kenji Isehara, JP 105 991
Hamada, Kenichi Tokushima, JP 81 568
Honda, Eiichi Tokushima, JP 33 116
Kato, Yuya Isehara, JP 56 182
Okubo, Michimasa Isehara, JP 7 4
Shima, Kunihiro Isehara, JP 22 48
Shiraishi, Kojiro Isehara, JP 42 2937
Takegawa, Emi Tokushima, JP 3 0
Tanaka, Kunihiro Isehara, JP 29 635

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