Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879473 | Electron-beam exposure apparatus | Nobuyuki Zumoto, Susumu Hoshinouchi | 1989-11-07 |
MS
Masahiko Sakamoto
Overall (1989): #79,067 of 140,708Top 60%
1
Patents 1989