YK

Yoshimitsu Koyama

NC Nhk Spring Co.: 1 patents #14 of 79Top 20%
📍 Kitakami, JP: #1 of 2 inventorsTop 50%
Overall (2021): #199,361 of 548,734Top 40%
1
Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11065641 Coil spring manufacturing method and coil spring manufacturing device Mitsuhiro Sugiyama, Tatsuya Watanuki 2021-07-20