Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12136870 | Buck converter having super-junction MOSFET | — | 2024-11-05 |
| 12105123 | Zero-crossing detection circuit | Satoru Nate, Natsuki Yamamoto | 2024-10-01 |
| 11733275 | Zero-crossing detection circuit | Satoru Nate, Natsuki Yamamoto | 2023-08-22 |
| 11181562 | Zero-crossing detection circuit | Satoru Nate, Natsuki Yamamoto | 2021-11-23 |
| 11011969 | Switching control circuit, switching power supply, and electric apparatus | — | 2021-05-18 |
| 9844108 | Light-emitting-load driving device and illumination-light source device using same | — | 2017-12-12 |
| 9581655 | Lighting apparatus | Masahide Tanaka, Mitsunori Nagashima | 2017-02-28 |
| 9553480 | Power system | Kenichi Niiyama, Masahide Tanaka | 2017-01-24 |
| 9420659 | LED power supply device | Kotaro Shibata | 2016-08-16 |
| 9374083 | Switching current control circuit, LED dimmer system, and LED illumination device | — | 2016-06-21 |
| 9271365 | LED power supply device | Kotaro Shibata | 2016-02-23 |
| 9101008 | Light emitter driving device and lighting appliance therewith | Takeshi Sumitani | 2015-08-04 |
| 9101011 | Lighting system including power conversion using a control signal based on illuminance information from a solar power generator | Koji Taniuchi | 2015-08-04 |
| 9066384 | Light emitting device control circuit device and control method of the control circuit device | Hidekazu Kikuchi | 2015-06-23 |
| 8922137 | Dimming control device, dimming control method and lighting apparatus provided with dimming control device | — | 2014-12-30 |
| 8922135 | Light emitter driving device and lighting appliance therewith | Takeshi Sumitani | 2014-12-30 |
| 8890441 | Load driving device and LED lighting appliance therewith | — | 2014-11-18 |
| 8710995 | Lighting apparatus | Masahide Tanaka, Mitsunori Nagashima | 2014-04-29 |
| 8575860 | Light emitting device control circuit device and control method of the control circuit device | Hidekazu Kikuchi | 2013-11-05 |
| 7430443 | Portable communication terminal | — | 2008-09-30 |
| 7164375 | Analog to digital converter using both analog and digital offset voltages as feedback | — | 2007-01-16 |