Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6828764 | Regulator circuit and control method thereof | Yoshihiro Nagaya, Toshiyuki Matsuyama | 2004-12-07 |
| 6724175 | POWER SUPPLY CONTROL DEVICE, POWER SUPPLY CIRCUIT, POWER SUPPLY CONTROL METHOD, AND ELECTRONIC APPARATUS CONTROLLING OUTPUT VOLTAGE THEREOF IN ACCORDANCE WITH A VOLTAGE DETECTED ACROSS AN ON SWITCHING ELEMENT | Kouichi Matsuda, Hidekiyo Ozawa, Kazuhiko Itakura | 2004-04-20 |
| 6696821 | DC-DC converter, duty-ratio setting circuit and electric appliance using them | Akira Haraguchi, Takashi Matsumoto | 2004-02-24 |
| 6674657 | Overvoltage-protective device for power system, AC/DC converter and DC/DC converter constituting the power system | Yoshihiro Nagaya, Toshiyuki Matsuyama | 2004-01-06 |