Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5646386 | Vacuum interrupter | Hideaki Toya, Hiroshi Hasegawa, Kenichi Koyama | 1997-07-08 |
| 5597993 | Vacuum interrupter | Hideaki Toya, Hiroshi Hasegawa, Kenichi Koyama | 1997-01-28 |
MY
Mitsumasa Yorita
Overall (1997): #29,200 of 185,788Top 20%
2
Patents 1997