Issued Patents All Time
Showing 51–73 of 73 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7826297 | Power supply switching circuit | Takahisa Takeda | 2010-11-02 |
| 7800433 | Power supply switching circuit | Kiyoshi Yoshikawa, Toshiyuki Tsuzaki, Hiroyuki Masuko, Osamu Uehara, Hiroki Wake +1 more | 2010-09-21 |
| 7652454 | Electronic equipment having a boost DC-DC converter | — | 2010-01-26 |
| 7443152 | Boost DC-DC converter and semiconductor device having boost DC-DC converter | — | 2008-10-28 |
| 7436239 | Electronic device including charge pump circuit | Hiroyuki Masuko | 2008-10-14 |
| 7405612 | Electronic device | Yukimasa Minami, Yoshifumi Yoshida | 2008-07-29 |
| 7336053 | Battery-powered electronic equipment with charge control circuit | Kazuyoshi Furuta, Fumiharu Iwasaki, Tsuneaki Tamachi, Takafumi Sarata, Norimasa Yanase | 2008-02-26 |
| 7274577 | Electronic instrument having booster circuit | — | 2007-09-25 |
| 6879502 | Power source inverter circuit | Yoshifumi Yoshida | 2005-04-12 |
| 6798086 | Electronic apparatus having dual-mode load circuit | — | 2004-09-28 |
| 6713815 | Semiconductor device with transistors that convert a voltage difference into a drain current difference | Hirokazu Yoshizawa | 2004-03-30 |
| 6674311 | Electronic device having a CMOS circuit | — | 2004-01-06 |
| 6603223 | Electronic apparatus having dual-mode load circuit | — | 2003-08-05 |
| 6407965 | Timepiece having thermoelectric generator unit | Akihiro Matoge, Susumu Kotanagi, Yoshifumi Yoshida, Matsuo Kishi | 2002-06-18 |
| 6362611 | Electronic portable appliance | — | 2002-03-26 |
| 6359841 | Timepiece and portable electronic device having thermoelectric generator unit | Susumu Kotanagi, Akihiro Matoge, Yoshifumi Yoshida, Matsuo Kishi | 2002-03-19 |
| 6327127 | Electronic instrument | Yoshifumi Yoshida | 2001-12-04 |
| 6316714 | Power generating block provided with thermoelectric generation unit | Susumu Kotanagi, Akihiro Matoge, Yoshifumi Yoshida, Matsuo Kishi | 2001-11-13 |
| 6207996 | Semiconductor device and method for manufacturing the same | Yoshifumi Yoshida | 2001-03-27 |
| 6163141 | Electronic apparatus for stopping supply of power to load during voltage detection operation | Yoshifumi Yoshida | 2000-12-19 |
| 6122185 | Electronic apparatus | Yoshifumi Yoshida, Miwa Moriuchi | 2000-09-19 |
| 5977688 | Electronic apparatus for being switched using piezoelectric element | Yutaka Saitoh, Yoshifumi Yoshida, Kouei Ozaki, Toshiaki Narukawa | 1999-11-02 |
| 5905291 | MISFET semiconductor integrated circuit device | Yutaka Saitoh, Naoto Saitoh, Jun Osanai, Haruo Konishi, Masanori Miyagi | 1999-05-18 |