Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6822937 | Optical information medium | Takuya Tsukagoshi, Tsuyoshi Komaki | 2004-11-23 |
YN
Yoichi Nakayama
Overall (All Time): #3,496,297 of 4,157,543Top 85%
1
Patents All Time