Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6790502 | Optically functional element and production method and application therefor | Hiroki Yamamoto, Takashi Naito, Ken Takahashi, Motoyasu Terao, Fumiyoshi Kirino +5 more | 2004-09-14 |
| 6783832 | Information recording medium | Motoyasu Terao, Keikichi Andoo | 2004-08-31 |
| 6728197 | Optical disk having a plurality of information recording units | Harukazu Miyamoto, Takeshi Maeda, Takahiro Kurokawa, Tetsuo Ariyoshi, Hirofumi Sukeda | 2004-04-27 |
| 6723411 | Information recording medium and method for manufacturing an information recording medium | Akemi Hirotsune, Makoto Miyamoto, Keikichi Andoo, Yumiko Anzai, Takahiro Kurokawa | 2004-04-20 |