Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9167653 | Power supply device and luminaire | Koji Takahashi, Hiromichi Nakajima, Kenji Sakai, Hiroyuki Kudo, Hirokazu Otake +7 more | 2015-10-20 |
| 9066407 | Power source unit for LED lamps, and LED lamp system | Hiroshi Kubota, Masahiko Kamata, Naoko Iwai, Takeshi Saito, Hiroki Nakagawa +2 more | 2015-06-23 |
| 8823278 | DC power source unit and LED lamp system | Naoko Iwai, Toshihiko Sasai, Masahiko Kamata, Toru Ishikita, Hitoshi Kawano +1 more | 2014-09-02 |
| 8816608 | Power supply device, luminaire and power source system | Toshihiko Sasai, Naoko Iwai | 2014-08-26 |
| 8643288 | Light-emitting device and illumination apparatus | Hirokazu Otake, Takuro Hiramatsu, Mitsuhiko Nishiie, Hiromichi Nakajima, Masahiko Kamata | 2014-02-04 |
| 8643307 | Lighting device and luminaire | Naoko Iwai, Masahiko Kamata, Hitoshi Kawano, Yosuke Saito | 2014-02-04 |
| 8638050 | DC power supply unit and LED lighting apparatus | Go Kato, Hiroshi Kubota, Masahiko Kamata, Tomokazu Usami, Naoko Iwai | 2014-01-28 |
| 8575857 | LED lighting device | Hiroyuki Sako, Katsunobu Hamamoto, Takeshi Saito, Hiroki Nakagawa | 2013-11-05 |
| 8513902 | Power supply unit having dimmer function and lighting unit | Hirokazu Ohtake, Mitsuhiko Nishiie, Takuro Hiramatsu | 2013-08-20 |
| 8476840 | LED lighting device and lighting equipment | Noriyuki Kitamura, Keiichi Shimizu, Tomokazu Usami | 2013-07-02 |
| 8415889 | LED lighting equipment | Takuro Hiramatsu, Masahiko Kamata, Hiroshi Kubota, Toshiyuki Hiraoka | 2013-04-09 |
| 6784626 | Electronic ballast and lighting fixture | Hirokazu Otake, Koji Takahashi, Hideo Kozuka | 2004-08-31 |