Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6341122 | Optical information recording medium | Yoshihisa Usami, Noboru Komori, Toshio Ishida, Takashi Morohashi | 2002-01-22 |
| 6338889 | Optical information recording medium | Toshihiko Miura, Takashi Suda | 2002-01-15 |