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:
Jan. 05, 2021
Filed:
Jan. 30, 2014
Tanaka Kikinzoku Kogyo K.k., Chiyoda-ku, Tokyo, JP;
Kyoto University, Kyoto-shi, Kyoto, JP;
Kunihiro Shima, Isehara, JP;
Kenji Goto, Hiratsuka, JP;
Yasushi Masahiro, Tokyo, JP;
Asaka Ueno, Tokyo, JP;
Hiroo Iwata, Kyoto, JP;
Ryusuke Nakai, Kyoto, JP;
Tomonobu Kodama, Kyoto, JP;
TANAKA KIKINZOKU KOGYO K.K., Tokyo, JP;
KYOTO UNIVERSITY, Kyoto, JP;
Abstract
The present invention provides an alloy for medical use including an Au—Pt alloy, in which the Au—Pt alloy has a Pt concentration of 24 mass % or more and less than 34 mass % with the balance being Au, and has at least a material structure in which a Pt-rich phase having a Pt concentration higher than that of an α-phase is distributed in an α-phase matrix, the Pt-rich phase has a Pt concentration that is 1.2 to 3.8 times the Pt concentration of the α-phase, and the Pt-rich phase has an area ratio of 1 to 22% in any cross-section. This alloy is an artifact-free alloy material that exhibits excellent compatibility with a magnetic field environment such as an MRI and has magnetic susceptibility of ±4 ppm with respect to magnetic susceptibility of water.