Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4796155 | Liquid cooling type high frequency solid state device | Toshiyuki Saito, Yoshiaki Kaneko, Yasuyuki Tokumitsu | 1989-01-03 |
NO
Naofumi Okubo
Overall (1989): #73,966 of 140,708Top 55%
1
Patents 1989