Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668440 | Nitride layer for discharge lamps | Shinji Inukai, Kazuo Takita, Makoto Nishizawa, Akira Itoh, Kazuyoshi Okamura +4 more | 1997-09-16 |
| 5187413 | Low pressure discharge lamp apparatus | Kenji Araki, Hiroki Sasaki, Youichirou Mitsuyuki | 1993-02-16 |
| 4929869 | High intensity discharge lamp containing iron and silver in the arc tube filling | Hiroki Sasaki, Yoichiro Mitsuyuki, Yasuki Mori, Toshihiko Ishigami | 1990-05-29 |
| 4835442 | Lamp for generating ultraviolet radiation | Takahiro Sugimoto, Hiroki Sasaki, Youichiro Mitsuyuki | 1989-05-30 |
| 4800321 | High pressure sodium lamp | Yujiro Ike, Shinichi Ooshima, Akihiro Kamiya, Yoshio Hirose | 1989-01-24 |
| 4419602 | Electric lamp | Zenzou Mitamura, Takashi Oosawa | 1983-12-06 |