Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11517007 | Pest control apparatus | Kazushige Sugita, Takashi Maniwa, Makoto Yamada | 2022-12-06 |
| 10898600 | Disinfecting method and disinfecting apparatus | Kazushige Sugita, Takashi Maniwa, Makoto Yamada | 2021-01-26 |
| 9137860 | Illumination light source and lighting apparatus | Hiroshi Fujita, Kazuhiko Itoh, Kazuo Gouda | 2015-09-15 |
| 8023292 | Switching control device | — | 2011-09-20 |
| 7834828 | Led driving semiconductor apparatus provided with controller including regulator and drain current detector of switching element block | Ryutaro Arakawa, Takashi Kunimatsu, Minoru Fukui | 2010-11-16 |
| 7638954 | Light emitting diode drive apparatus | Takashi Kunimatsu, Ryutaro Arakawa, Minoru Fukui | 2009-12-29 |
| 7511929 | Switching power supply and semiconductor device used therefor | — | 2009-03-31 |
| 7508254 | Reference supply voltage circuit using more than two reference supply voltages | Ryutaro Arakawa, Takashi Kunimatsu, Minoru Fukui | 2009-03-24 |
| 7439719 | Switching control circuit with off period adjustment | Ryutarou Arakawa, Takashi Kunimatsu, Minoru Fukui | 2008-10-21 |
| 7426121 | Output voltage detection circuit, isolated switching power supply, and semiconductor device | — | 2008-09-16 |
| 7348766 | Switching power supply device | Ryutaro Arakawa, Minoru Fukui, Takashi Kunimatsu | 2008-03-25 |
| 7321223 | Switching power supply apparatus | — | 2008-01-22 |
| 7167028 | Voltage detection circuit, power supply unit and semiconductor device | — | 2007-01-23 |
| 7167382 | Semiconductor device | — | 2007-01-23 |
| 7115888 | LED driving semiconductor circuit and LED driving apparatus including the same | Ryutaro Arakawa | 2006-10-03 |
| 6812682 | Switching power supply unit and semiconductor device for switching power supply | — | 2004-11-02 |
| 6534829 | Semiconductor device and method for fabricating the same | Seiji Sogo, Yuji Ueno, Seiki Yamaguchi, Yoshihiro Mori, Satoru Takahashi +2 more | 2003-03-18 |
| 6294903 | Switching power supply | Tetsuji Yamashita, Yoshihiro Mori, Yuji Yamanishi | 2001-09-25 |
| 6069501 | Semiconductor device | Yuji Yamanishi, Yoshihiro Mori | 2000-05-30 |
| 6005350 | Electroluminescent driving apparatus with photodetector | Yuji Yamanishi, Yuji Ueno | 1999-12-21 |