Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6795232 | Wavelength converter | Kazuo Fujiura, Tadayuki Imai, Koji Enbutsu, Masahiro Sasaura, Takashi Kurihara +3 more | 2004-09-21 |
| 6792189 | Optical waveguide and method of manufacture | Masahiro Sasaura, Kazuo Fujiura, Koji Enbutsu, Tadayuki Imai, Takashi Kurihara +3 more | 2004-09-14 |
| 6729541 | Information reading apparatus and information recording medium | Yoshiaki Kurokawa, Toshifumi Ohkubo, Manabu Yamamoto, Takaya Tanabe | 2004-05-04 |