Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9007738 | Transistor protection circuit | Kazuhiro Fujikawa, Nobuo Shiga, Takashi Ohira, Tuya Wuren | 2015-04-14 |
| 8917142 | Switching circuit and envelope signal amplifier | Satoshi Hatsukawa, Kazuhiro Fujikawa, Takashi Tsuno, Nobuo Shiga, Takashi Ohira +2 more | 2014-12-23 |
| 8878604 | Switching circuit and envelope signal amplifier | Takashi Ohira, Mitsutoshi Nakata, Kazushi Sawada, Satoshi Hatsukawa, Nobuo Shiga +1 more | 2014-11-04 |
| 8766699 | Switching circuit | Kazuhiro Fujikawa, Nobuo Shiga, Takashi Ohira, Kazuya Ishioka | 2014-07-01 |
| 8760223 | Switching circuit | Kazuhiro Fujikawa, Nobuo Shiga, Takashi Ohira, Kazuya Ishioka | 2014-06-24 |
| 8536930 | Switching circuit | Satoshi Hatsukawa, Nobuo Shiga, Kazuhiro Fujikawa, Takashi Ohira, Tuya Wuren +2 more | 2013-09-17 |
| 6661289 | Voltage-to-current conversion circuit and OTA using the same | Takahide Sato, Nobuo Fujii, Sigetaka Takagi | 2003-12-09 |
| 6388520 | Semiconductor integrated circuit | Shigetaka Takagi, Nobuo Fujii | 2002-05-14 |