Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5460737 | Graphite-free lubricating oil | Kenji Sakai, Koichi Goto, Hitoshi Yokomizo, Kazuhiro Mitamura, Toshinori Kawai | 1995-10-24 |
MH
Masatoshi Hirofuji
Kyodo Yushi Co.: 1 patents #63 of 191Top 35%
Overall (All Time): #3,782,677 of 4,157,543Top 95%
1
Patents All Time