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 | Takahiro Togashi, Yoichi Okumura | 2004-04-20 |
MY
Masataka Yamaguchi
Overall (2004): #156,773 of 270,089Top 60%
1
Patents 2004