Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6137228 | Metal halide lamps with tungsten coils having varying pitches and inner diameters | Masanobu Aizawa, Tsuneyoshi Sibasaki, Mitsugu Tayama, Akihiko Tsurumaru | 2000-10-24 |