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:
Nov. 01, 2022
Filed:
Nov. 30, 2021
Ishifuku Metal Industry Co., Ltd., Tokyo, JP;
Denso Corporation, Kariya, JP;
Shunsuke Yokota, Soka, JP;
Kenta Terai, Soka, JP;
Hayato Yasuhara, Soka, JP;
Ryohei Akiyoshi, Kariya, JP;
Ken Hanashi, Kariya, JP;
Ikuya Ando, Kariya, JP;
ISHIFUKU METAL INDUSTRY CO., LTD., Tokyo, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
Provided is an Ir alloy wire, which is further improved in oxidation wear resistance while ensuring a Vickers hardness. The Ir alloy wire includes: 5 mass % to 30 mass % of Rh; and 0.5 mass % to 5 mass % of Ta, wherein an average value A for an aspect ratio (crystal grain length/crystal grain width) of a structure of the alloy wire in a range of a depth of 0.05 mm or less from a surface of the alloy wire satisfies 1≤A<6.