YI

Yoshinari Ishii

DI Diamet: 2 patents #1 of 7Top 15%
Overall (2021): #96,040 of 548,734Top 20%
2
Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11073178 Oil-impregnated sintered bearing and method for manufacturing the same Hajime Kouno, Tsuneo Maruyama, Jyun Katou, Kenji Orito 2021-07-27
10941465 Cu-based sintered sliding material, and production method therefor 2021-03-09