Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6501728 | Optical disc having groove and land tracks | Norio Adachi, Hiroyuki Sakai | 2002-12-31 |
| 6480461 | Recording medium cartridge | Taku Watanabe | 2002-11-12 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6501728 | Optical disc having groove and land tracks | Norio Adachi, Hiroyuki Sakai | 2002-12-31 |
| 6480461 | Recording medium cartridge | Taku Watanabe | 2002-11-12 |