Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853870 | Electron beam exposure system | Jun-ichi Kai, Hiroshi Yasuda, Kenichi Kawashima | 1989-08-01 |
NY
Nobuyuki Yasutake
Overall (1989): #72,237 of 140,708Top 55%
1
Patents 1989