US Patent Issued to ISHIFUKU METAL INDUSTRY, DENSO on May 19 for "Heat-resistant IR-PT alloy" (Japanese Inventors)

ALEXANDRIA, Va., May 19 -- United States Patent no. 12,630,902, issued on May 19, was assigned to ISHIFUKU METAL INDUSTRY Co. LTD. (Tokyo) and DENSO Corp. (Kariya, Japan).

"Heat-resistant IR-PT alloy" was invented by Kenta Terai (Soka, Japan), Shunsuke Takeya (Soka, Japan), Hayato Yasuhara (Soka, Japan), Akihiro Shibata (Soka, Japan), Ryohei Akiyoshi (Kariya, Japan) and Yuji Kaji (Kariya, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a heat-resistant Ir alloy, which is further improved in Vickers hardness while maintaining satisfactory processability. Specifically, provided is a heat-resistant Ir alloy, including: 5 mass % to 30 mass % of Pt; 0.5 mass % to 5 mass % of Ta; and 0.003 mass % ...