Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11817725 | Charging device | Cary L. Delano, Gaurav Mital | 2023-11-14 |
| 11190100 | Charging device | Cary L. Delano, Gaurav Mital | 2021-11-30 |
| 8120344 | Power supply unit and portable device | Hiroki Kikuchi | 2012-02-21 |
| 7635969 | Power supply unit and portable device | Hiroki Kikuchi | 2009-12-22 |
| 7626371 | Power supply unit and portable device | Hiroki Kikuchi | 2009-12-01 |
| 7091705 | Switching power supply unit and electronic apparatus having display | Ryouma Matsuo | 2006-08-15 |
| 6954056 | Switching power supply unit and controller IC thereof | Eitaro Oyama | 2005-10-11 |
| 6922040 | PWM switching regulator with current and voltage feedback | Hiroaki Ando | 2005-07-26 |
| 6919713 | Switching power supply unit | Eitaro Oyama | 2005-07-19 |
| 6801065 | Transistor output circuit, semiconductor device including transistor output circuit, and switching electric power unit having transistor output circuit | Ryouma Matsuo | 2004-10-05 |
| 6628252 | LED drive circuit | Isao Ouchi | 2003-09-30 |
| 6538907 | Voltage drop DC-DC converter | Eitaro Oyama | 2003-03-25 |
| 6275095 | Semiconductor amplifier circuit | Kengo Adachi, Eitaro Oyama | 2001-08-14 |
| 6198258 | DC-DC converter capable of soft starting function by slowly raising reference voltage | Hiroaki Ando, Kengo Adachi | 2001-03-06 |
| 5929623 | Regulated power supply circuit | — | 1999-07-27 |
| 5787182 | Audio signal amplifier circuit and a portable audio equipment using the same | Isao Yamamoto, Masanori Fujisawa, Masato Kobayashi | 1998-07-28 |
| 5754129 | Data conversion circuit | — | 1998-05-19 |