TK

Takashi Koga

JS Jfe Steel: 1 patents #134 of 322Top 45%
Overall (2025): #199,642 of 469,880Top 45%
1
Patents 2025

Issued Patents 2025

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12312552 Agent for forming solid lubricating coating film, oil country tubular goods, threaded joint for oil country tubular goods, and method for manufacturing oil country tubular goods Yasuhide Ishiguro, Seigo Goto, Takamasa Kawai, Seiji Ozaki, Hideo Sato +6 more 2025-05-27