Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6815893 | Metal halide lamp having a long lifespan | Shunsuke Kakisaka, Kazuo Takeda, Yoshiharu Nishiura | 2004-11-09 |
| 6713962 | High-pressure discharge lamp | Hiroshi Nohara, Yoshiharu Nishiura, Hiroshi Enami, Shiki Nakayama, Masato Wada | 2004-03-30 |