Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6781292 | High pressure discharge lamp and luminaire | Masazumi Ishida, Shigemi Oku, Takahito Kashiwagi | 2004-08-24 |
| 6713961 | High-intensity discharge lamp, system for lighting the lamp and lighting appliance using the lamp | Hisashi Honda, Seiji Ashida, Shigehisa Kawatburu, Kazuhiro Miyagawa | 2004-03-30 |
| D482142 | Lamp bulb | Hisashi Honda, Masazumi Ishida | 2003-11-11 |