Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4823235 | Earth connection device in metal core printed circuit board | Katsuyuki Arai, Yasushi Kojima, Mitsusada Toyama, Jun Sakiura, Hisao Hayashi +1 more | 1989-04-18 |
MS
Mitsuaki Suzuki
Overall (1989): #75,179 of 140,708Top 55%
1
Patents 1989