Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5638354 | Optical information recording medium | Hiroshi Koide, Akihiko Shimizu | 1997-06-10 |
MN
Masahiko Nakayama
Overall (1997): #108,252 of 185,788Top 60%
1
Patents 1997