Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10735573 | Contact management system and contact management method | Takafumi Endo, Yasunori Suzumura, Hidetada Anan, Yasuhiro Yamazono, Takeshi Gomi +1 more | 2020-08-04 |
| 9560704 | LED driving device and LED lighting apparatus | Mitsutomo Yoshinaga | 2017-01-31 |
| 9172307 | Switching power source device and control IC which are capable of performing constant power control | Mitsutomo Yoshinaga, Toshihiro Nakano | 2015-10-27 |
| 9125268 | Power supply for LED illumination | Toshihiro Nakano, Takayuki Yamashita, Yuji Sayama, Hiroaki Kiuchi | 2015-09-01 |
| 9113519 | LED driving apparatus and LED lighting apparatus | Kazushige Hirata, Toshihiro Nakano | 2015-08-18 |
| 8847518 | Power converter | — | 2014-09-30 |
| 8587220 | Power converter | — | 2013-11-19 |
| 8520412 | Synchronous operating system for discharge tube lighting apparatuses, discharge tube lighting apparatus, and semiconductor integrated circuit | — | 2013-08-27 |
| 8456108 | LED lighting apparatus | Mitsutomo Yoshinaga | 2013-06-04 |
| 8315075 | DC/AC converter | Toru Ashikaga, Toshihiro Nakano | 2012-11-20 |
| 8193739 | Apparatus for lighting LEDs | — | 2012-06-05 |
| 8188617 | Current balancing apparatus, current balancing method, and power supply apparatus | Shinji Aso | 2012-05-29 |
| 8169151 | DC/AC converter and controller thereof | — | 2012-05-01 |
| 8159145 | Synchronous operating system for discharge tube lighting apparatuses, discharge tube lighting apparatus, and semiconductor integrated circuit | — | 2012-04-17 |
| 8063569 | Discharge tube power supply apparatus and semiconductor integrated circuit | — | 2011-11-22 |
| 8054008 | Power converter | — | 2011-11-08 |
| 8049435 | Frequency synchronizing method for discharge tube lighting apparatus, discharge tube lighting apparatus, and semiconductor integrated circuit | — | 2011-11-01 |
| 8040073 | AC power supply system for balanced energization of a plurality of loads | — | 2011-10-18 |
| 7999602 | Switching control circuit | — | 2011-08-16 |
| 7986104 | Discharge lamp lighting apparatus | — | 2011-07-26 |
| 7982415 | Discharge lamp lighting apparatus | — | 2011-07-19 |
| 7825608 | Multi-discharge tube lighting apparatus | — | 2010-11-02 |
| 7800317 | Discharge lamp lighting apparatus and semiconductor integrated circuit | — | 2010-09-21 |
| 7746004 | Discharge-lamp lighting apparatus | Yukinari Fukumoto | 2010-06-29 |
| 7605546 | Discharge lamp lighting apparatus and semiconductor integrated circuit | — | 2009-10-20 |