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:
Dec. 10, 2019
Filed:
Oct. 14, 2015
Tanaka Kikinzoku Kogyo K.k., Chiyoda-ku, Tokyo, JP;
Tokyo Institute of Technology, Meguro-ku, Tokyo, JP;
Hideki Hosoda, Tokyo, JP;
Tomonari Inamura, Tokyo, JP;
Masaki Tahara, Tokyo, JP;
Yuri Shinohara, Tokyo, JP;
Kota Fuchiwaki, Tokyo, JP;
Kenji Goto, Hiratsuka, JP;
TANAKA KIKINZOKU KOGYO K. K., Tokyo, JP;
TOKYO INSTITUTE OF TECHNOLOGY, Tokyo, JP;
Abstract
The present invention provides a superelastic alloy containing Au in an amount of 8.0% by mass or more and 20.0% by mass or less and at least one of Cr and Mo as essential additive elements, Ta as an optional additive element, and Ti and inevitable impurities as a balance, wherein the Cr equivalent calculated on the basis of the following formula for the relationship of the Cr content, the Mo content and the Ta content is within the range of more than 0.5 and less than 8.0. The alloy is a Ni-free superelastic alloy, and has favorable X-ray-imaging property. Accordingly, the alloy can be suitably used in medical fields.Cr equivalent=[Cr content (% by mass)]+([Mo content (% by mass)]/1.7)+([Ta content (% by mass)]/15)  [Formula 1]