Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7211953 | Plasma display device having portion where electrical field is concentrated | Byung-Hak Lee, Eun-Gi Heo, Min-Sun Yoo | 2007-05-01 |
| 6531820 | Plasma display device including grooves concentrating an electric field | Byung-Hak Lee, Eun-Gi Heo, Min-Sun Yoo | 2003-03-11 |
| 5159237 | Green-light-emitting rare gas discharge lamp | Kazutoshi Ishikawa, Katsuo Murakami, Seishiro Mitsuhashi, Takashi Osawa, Yujiro Kamano +2 more | 1992-10-27 |
| 5072155 | Rare gas discharge fluorescent lamp device | Takehiko Sakurai, Takeo Saikatsu, Hiroyoshi Yamazaki | 1991-12-10 |
| 5013966 | Discharge lamp with external electrodes | Takeo Saikatsu, Takehiko Sakurai | 1991-05-07 |
| 4914347 | Hot-cathode discharge fluorescent lamp filled with low pressure rare gas | Takashi Osawa, Katsuo Murakami, Takeo Saikatsu, Seishiro Mitsuhashi, Kazutoshi Ishikawa +2 more | 1990-04-03 |
| 4837478 | Near-infrared ray radiation illuminator and near-infrared ray image pick-up device | Takao Saikatsu, Masato Saito, Michihiro Tsuchihashi | 1989-06-06 |
| 4749916 | Illuminator for cultivating plant | Hiroyoshi Yamazaki, Makoto Yamanoshita | 1988-06-07 |
| 4583026 | Low-pressure mercury vapor discharge lamp | Toshiro Kajiwara, Takeo Saikatsu, Goroku Kobayashi, Hiroshi Yamazaki, Yoshiji Minagawa | 1986-04-15 |
| 4544862 | Lighting circuit for electric discharge lamp | Hiroyoshi Yamazaki, Yoshiji Minagawa, Michihiro Tsuchihashi, Toshiro Kajiwara | 1985-10-01 |
| 4469986 | Low pressure discharge lamp with polygon shaped envelope | Michihiro Tsuchihashi, Toshiro Kajiwara, Takeo Saikatsu | 1984-09-04 |
| 4461981 | Low pressure inert gas discharge device | Takeo Saikatsu, Toshiro Kajiwara, Goroku Kobayashi, Shunichi Morimoto | 1984-07-24 |
| 4267485 | Fluorescent lamp with sharp emission peaks betwen 480 and 490 nm and between 620 and 640 nm | Katsuo Murakami, Mitsuoki Otani, Hiroshi Ito | 1981-05-12 |