Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6054810 | Metal halide lamp having a ceramic discharge tube | Takashi Yamamoto, Hiroshi Nohara, Shiki Nakayama, Kouichi Sugimoto, Kazuo Takeda +1 more | 2000-04-25 |
| 5994839 | High-pressure metal vapor discharge lamp | Takashi Yamamoto, Shiki Nakayama, Hiroshi Nohara, Shigefumi Oda | 1999-11-30 |