Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5804924 | Discharge lamp with two voltage levels | Masahito Ohnishi, Takashi Kanda, Masahiro Naruo | 1998-09-08 |
| 5013975 | Electrodeless discharge lamp | Shin Ukegawa, Masaki Shinomiya, Masahiro Higashikawa, Koichi Kobayashi | 1991-05-07 |
| 4996465 | Variable color lighting device | — | 1991-02-26 |
| 4780645 | Electronic light radiation tube | Makoto Toho, Koji Hiramatsu, Ryohei Itatani | 1988-10-25 |