Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D601724 | High intensity discharge lamp | Seiji Ashida | 2009-10-06 |
| 5854535 | Metal halide discharge lamp with a quartz discharge vessel and an outer UV radiation absorbent envelope | Andreas Hohlfeld, Dirk Hoffmann, Akihiro Kanda | 1998-12-29 |
| 4870316 | Pulsed alkali metal vapor discharge lamp with ceramics outer envelope | — | 1989-09-26 |
| 4481446 | Metal vapor discharge lamp | Michihiro Tsuchihashi, Ryo Suzuki | 1984-11-06 |
| 4418300 | Metal vapor discharge lamp with heat insulator and starting aid | Ryo Suzuki, Keiji Watanabe, Michihiro Tsuchihashi | 1983-11-29 |