Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8307730 | Transmission device | Shinya Koyama, Hitoshi Tokotani | 2012-11-13 |
| 5849245 | Well brick of vessel for molten metal | Hideaki Mizuno | 1998-12-15 |
HE
Hiroaki Egashira
Tokyo Yogyo Kabushiki Kaisha: 1 patents #16 of 52Top 35%
Overall (All Time): #2,098,612 of 4,157,543Top 55%
2
Patents All Time