Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6333905 | Optical disk, optical disk device, and optical disk recording method | Seiji Kobayashi | 2001-12-25 |
| 6226243 | Optical disk, optical disk device, and optical disk recording method | Seiji Kobayashi | 2001-05-01 |
| 6088323 | Optical disk, optical disk device, and optical disk recording method | Seiji Kobayashi | 2000-07-11 |
| 6078552 | Optical information recording device, optical playback device and optical information recording medium | Masanobu Yamamoto, Seiji Kobayashi | 2000-06-20 |