Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9071130 | Switching power supply device, switching power supply circuit, and electrical equipment | Noriyuki Kitamura, Yuji Takahashi, Koji Suzuki, Koji Takahashi | 2015-06-30 |
| 8963432 | Lighting system, control method therefor and lighting control device | — | 2015-02-24 |
| 8952627 | Illuminating device and illuminating method | Sayaka Tomiyama, Masahiko Kamata, Toshihiko Sasai, Hitoshi Kawano, Naoko Iwai +2 more | 2015-02-10 |
| 8823278 | DC power source unit and LED lamp system | Naoko Iwai, Toshihiko Sasai, Masahiko Kamata, Hiroshi Terasaka, Hitoshi Kawano +1 more | 2014-09-02 |
| 8796938 | Switching power supply, luminaire, and control method for the luminaire | Yuji Takahashi, Noriyuki Kitamura, Koji Suzuki, Koji Takahashi | 2014-08-05 |
| 8686663 | Lighting system and control method thereof | Naoko Iwai, Makoto Kono, Hiroya Kan, Takao Kowada, Kiyoteru Kosa +2 more | 2014-04-01 |
| 7388337 | Fluorescent lamp lighting apparatus and lighting control system | Koji Takahasi, Toshiyuki Hiraoka, Noriyuki Kitamura, Naoko Iwai, Kazuyuki Uratani +2 more | 2008-06-17 |