Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8248043 | Control circuit for DC-DC converter, control method for DC-DC converter, and electronic device | Naoki Nagase | 2012-08-21 |
| 7956586 | Step-up/step-down type DC-DC converter, and control circuit and control method of the same | Ryuta Nagai, Takashi Matsumoto | 2011-06-07 |
| 7663356 | Current-controlled DC-DC converter control circuit, current-controlled DC-DC converter, and method for controlling current-controlled DC-DC converter | — | 2010-02-16 |
| 6731099 | DC-DC converter with control circuit capable of generating step-up and step-down signals | Ryuta Nagai | 2004-05-04 |
| 6400209 | Switch circuit with back gate voltage control and series regulator | Toshiyuki Matsuyama | 2002-06-04 |
| 6320359 | DC-DC converter and controller for detecting a malfunction therein | Yoshihiro Nagaya, Toshiyuki Matsuyama | 2001-11-20 |