Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684641 | Objective lens and optical head apparatus using the objective lens | Yasuhiro Tanaka, Osamu Doi, Kenji Inoue, Jun Murata | 1997-11-04 |
MY
Michihiro Yamagata
Overall (1997): #101,128 of 185,788Top 55%
1
Patents 1997