Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8970127 | Lighting circuit and illumination device | Mitsuhiro Matsuda, Naoko Iwai, Hajime Osaki, Hiroshi Kubota, Takuro Hiramatsu +1 more | 2015-03-03 |
| 8864511 | Tube lamp and luminaire | Keiichi Shimizu, Masao Hori, Koji Sato, Yuki Harada, Toshiyuki Hiraoka +5 more | 2014-10-21 |
| 8686647 | Lighting control system and lighting control method | Takayuki Ono, Tomoko Ishiwata, Yoko Noguchi, Makoto Kawagoe, Kenji Takahashi +5 more | 2014-04-01 |
| 5637963 | Electrodeless lamp having a narrow gap between a sealed tube and the arc chamber so as to form a consistent cold spot | Akihiro Inoue, Akira Ito, Shigehisa Kawatsuru | 1997-06-10 |
| 5276385 | High-pressure discharge lamp and lighting method | Akira Itoh, Kazuyoshi Okamura, Kazuiki Uchida, Mitsuho Kotabe, Hirochika Shiohama +2 more | 1994-01-04 |
| 5243251 | Lamp having a glass envelope with fluorocarbon polymer layer | Shinji Inukai, Satoshi Iwasawa, Kazuo Takita | 1993-09-07 |