Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4823235 | Earth connection device in metal core printed circuit board | Mitsuaki Suzuki, Katsuyuki Arai, Mitsusada Toyama, Jun Sakiura, Hisao Hayashi +1 more | 1989-04-18 |
YK
Yasushi Kojima
Overall (1989): #42,068 of 140,708Top 30%
1
Patents 1989