Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6532246 | Excimer laser apparatus | Hiromasa Fukuyama, Motohiro Arai | 2003-03-11 |
| 4916751 | Rolling bearing | Yuichi Sumita, Yukio Ohura | 1990-04-10 |
KT
Katsuya Toma
Nippon Seiko Co.: 1 patents #121 of 315Top 40%
Ushio Denki Kabushiki Kaisha: 1 patents #309 of 583Top 55%
Overall (All Time): #2,199,815 of 4,157,543Top 55%
2
Patents All Time