Issued Patents 2003
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6655810 | Lighting unit | Keiji Hayashi, Toshihiro Suzuki, Hisashi Yamaguchi, Tetsuya Kobayashi, Tetsuya Hamada +1 more | 2003-12-02 |
| 6639642 | Display device having diffraction grating | Toshihiro Suzuki, Yukio Iigahama, Hisashi Yamaguchi, Tetsuya Hamada, Keiji Hayashi +7 more | 2003-10-28 |
| 6559910 | Display device with condenser elements | Toshihiro Suzuki, Tetsuya Kobayashi, Tetsuya Hamada, Keiji Hayashi, Mari Sugawara +3 more | 2003-05-06 |
| 6552760 | Luminaire with improved light utilization efficiency | Toshihiro Suzuki, Tetsuya Kobayashi, Tetsuya Hamada, Mari Sugawara, Keiji Hayashi +2 more | 2003-04-22 |
| 6513936 | Projector | Masaru Ishiwa, Keiji Hayashi, Toshihiro Suzuki, Tetsuya Kobayashi, Tetsuya Hamada +1 more | 2003-02-04 |