YK

Yuji Koyama

NS NS Sumikin Stainless: 1 patents #8 of 22Top 40%
📍 Tokyo, MS: #7 of 8 inventorsTop 90%
Overall (2016): #170,580 of 481,213Top 40%
1
Patents 2016

Issued Patents 2016

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9523402 Stainless steel brake disc and method for production thereof Shinichi Teraoka, Yoshiharu Inoue, Masaaki Kobayashi, Toshio Tanoue 2016-12-20