Issued Patents All Time
Showing 1–25 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9775202 | Lighting apparatus and luminaire that adjust switching frequency based on output voltage | Keisuke Seki, Daisuke Yamahara | 2017-09-26 |
| 9763294 | Lighting device and lighting fixture using same | Masato Himeda, Hiroyuki Asano, Masafumi Yamamoto, Daisuke Yamahara, Keisuke Seki +1 more | 2017-09-12 |
| 9750095 | Light modulation controller, lighting system, and equipment instrument | Shigeru Ido, Akinori Hiramatu, Hiroshi Kido, Daisuke Ueda | 2017-08-29 |
| 9723665 | Reduced flickering lighting apparatus and luminaire | Keisuke Seki, Daisuke Yamahara | 2017-08-01 |
| 9706615 | Lighting device and illumination apparatus | Keisuke Seki, Daisuke Yamahara, Shun KUSUDA | 2017-07-11 |
| 9681508 | Light modulation control unit, illumination system, and facility apparatus | Akinori Hiramatu, Hirohiko Nojiri, Hiroshi Kido | 2017-06-13 |
| 9456477 | Lighting device and lighting fixture using same | Keisuke Seki, Daisuke Yamahara, Hiroyuki Asano, Masafumi Yamamoto, Masato Himeda +1 more | 2016-09-27 |
| 9414451 | Lighting device and luminaire | Keisuke Seki, Daisuke Yamahara | 2016-08-09 |
| 9392668 | Lighting device and lighting fixture | Hiroshi Kido, Akinori Hiramatu, Junichi Hasegawa, Shigeru Ido, Nobutoshi Matsuzaki +1 more | 2016-07-12 |
| 9380660 | Electronic ballast and luminaire with the same | Akinori Hiramatu, Daisuke Yamahara, Shigeru Ido, Junichi Hasegawa, Hiroshi Kido | 2016-06-28 |
| 9380667 | Illumination device and illumination fixture | Shigeru Ido, Hiroshi Kido, Akinori Hiramatu, Katsushi Seki, Daisuke Yamahara +1 more | 2016-06-28 |
| 9374865 | Lighting device, illuminating device and light fixture | Daisuke Yamahara, Hiroshi Kido, Akinori Hiramatu, Katsushi Seki, Daisuke Ueda +1 more | 2016-06-21 |
| 9374864 | Lighting device and light fixture | Akinori Hiramatu, Hiroshi Kido, Katsushi Seki, Shigeru Ido, Daisuke Yamahara +1 more | 2016-06-21 |
| 9185775 | Lighting device and lighting fixture | Junichi Hasegawa, Hiroshi Kido, Akinori Hiramatu, Shigeru Ido, Nobutoshi Matsuzaki +1 more | 2015-11-10 |
| 9167648 | Lighting device and luminaire | Daisuke Yamahara, Keisuke Seki | 2015-10-20 |
| 9167649 | Lighting device and luminaire | Daisuke Yamahara, Keisuke Seki | 2015-10-20 |
| 9131555 | Lighting device, luminaire, method for designing lighting device, and method for manufacturing lighting device | Keisuke Seki, Daisuke Yamahara | 2015-09-08 |
| 9113509 | Lighting device and lighting fixture | Junichi Hasegawa, Hiroshi Kido, Akinori Hiramatu, Shigeru Ido, Nobutoshi Matsuzaki +1 more | 2015-08-18 |
| 8232746 | High pressure discharge lamp lighting device and lighting fixture using the same | Akira Yufuku, Hiroyasu Eriguchi, Takeshi Goriki, Jun Kumagai, Naoki Komatsu +3 more | 2012-07-31 |
| 8228003 | Electronic ballast for an hid lamp with lamp re-start control | — | 2012-07-24 |
| 8228006 | High pressure discharge lamp lighting device and lighting fixture using the same | Naoki Komatsu, Hiroyasu Eriguchi, Takeshi Goriki, Jun Kumagai, Akira Yufuku +3 more | 2012-07-24 |
| 8207690 | High-pressure discharge lamp ballast with rapid lamp restart circuit | Akira Yufuku | 2012-06-26 |
| 8198824 | Electronic ballast for restarting high-pressure discharge lamps in various states of operation | Akira Yufuku | 2012-06-12 |
| 8115405 | High pressure discharge lamp lighting device and luminaire using same | Daisuke Yamahara, Nobutoshi Matsuzaki, Satoru Nagata, Naoki Komatsu, Jun Kumagai | 2012-02-14 |
| 8115404 | High pressure discharge lamp lighting device and luminaire | Takeshi Goriki, Nobutoshi Matsuzaki, Daisuke Yamahara | 2012-02-14 |