Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871404 | Method for producing an optical information recording disk | Yasushi Murata, Fumio Matsui | 1989-10-03 |
KO
Kunizoh Ogoshi
Overall (1989): #85,461 of 140,708Top 65%
1
Patents 1989