Issued Patents All Time
Showing 1–4 of 4 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, Masatomo Yanai | 2000-10-24 |
| 5932970 | Preform for fluorescent lamp, fluorescent lamp prepared by the same, and method for preparing the fluorescent lamp | Masatosi Chiba, Ryuichi Suzuki, Koji Kikuchihara | 1999-08-03 |
| 4993981 | Method of manufacturing vaporized metal discharge lamp | Akira Ose, Shinya Omori | 1991-02-19 |
| 4682072 | Headlamp for vehicle | Takeo Ichihara, Yukio Yamanaka | 1987-07-21 |