Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6781292 | High pressure discharge lamp and luminaire | Masazumi Ishida, Sadao Sakaguchi, Takahito Kashiwagi | 2004-08-24 |
| 6661176 | High pressure discharge lamp, high pressure discharge lamp lighting apparatus and luminaire therefor | Hisashi Honda, Sadao Sakuguchi, Masazumi Ishida, Seiji Ashida, Takahito Kashiwagi | 2003-12-09 |