Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6552623 | Self-oscillation type switching power supply unit | Akio Nishida, Koji Nakahira | 2003-04-22 |
| 6529392 | Switching power supply unit | Akio Nishida, Koji Nakahira | 2003-03-04 |
| 6525946 | Switching power supply unit, and electronic apparatus incorporating the same | Tomohiro Yamada, Kentaro Takahashi | 2003-02-25 |
| 6433443 | Switching power supply having two or more DC outputs with switching circuit provided between the outputs | Akio Nishida, Koji Nakahira, Tomohiro Yamada | 2002-08-13 |
| 6295211 | Switching power supply unit having delay circuit for reducing switching frequency | Akio Nishida, Koji Nakahira | 2001-09-25 |
| 6285566 | RCC power supply with remote disabling of oscillation frequency control | Koji Nakahira, Ryuji Okamura, Akio Nishida | 2001-09-04 |
| 6185112 | Switching power supply having a frequency limiting circuit | Akio Nishida, Koji Nakahira | 2001-02-06 |
| 6081433 | Switching power supply apparatus | Akio Nishida, Koji Nakahira | 2000-06-27 |
| 5675479 | Switching power-supply | Kohji Nakahira | 1997-10-07 |