Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7235899 | Switching constant-current power supply system | — | 2007-06-26 |
| 7064943 | Boost-type switching power device | — | 2006-06-20 |
| 7034607 | Switching constant-current power device | — | 2006-04-25 |
| 6909249 | Switching constant-current power supply | — | 2005-06-21 |
| 6157550 | Switching power supply circuit | — | 2000-12-05 |
| 5689178 | Self-oscillation type DC-DC converter having a driving transistor connected in parallel to a circuit element for starting a switching element | — | 1997-11-18 |
| 5574357 | Switching power supply | Noriyuki Yoshizawa | 1996-11-12 |
| 4819144 | Switching power supply circuit with stored charge removal switch | — | 1989-04-04 |