Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6754158 | Optical and visual information recording medium, optical and visual information recording apparatus and method | Seiji Kobayashi, Tsutomu Ishimoto, Hisayuki Yamatsu | 2004-06-22 |