Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6724716 | Phase-change type optical storage medium having multiple recording layers | Masataka Yamaguchi, Takahiro Togashi | 2004-04-20 |
YO
Yoichi Okumura
Overall (2004): #81,925 of 270,089Top 35%
1
Patents 2004