YH

Yoichiro Hayashi

OC Oiles Industry Co.: 1 patents #24 of 61Top 40%
AT Agency Of Industrial Science And Technology: 1 patents #568 of 1,778Top 35%
Overall (All Time): #3,966,834 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4637884 Sliding member of graphite-boron carbides Kenji Miyazaki, Tsuyoshi Hagio, Ichitaro Ogawa, Hisayoshi Yoshida, Kazuo Kobayashi +3 more 1987-01-20