Issued Patents All Time
Showing 51–63 of 63 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6262897 | Switching power circuit with secondary side parallel and series resonance | — | 2001-07-17 |
| 5973937 | Switching power supply circuit of current-resonance type without a choke coil | — | 1999-10-26 |
| 5973946 | Power-factor improvement converter | — | 1999-10-26 |
| 5835368 | Power-factor improvement converter | — | 1998-11-10 |
| 5640310 | Current resonance type switching power source | — | 1997-06-17 |
| 5450307 | Switching power source apparatus | — | 1995-09-12 |
| 5265001 | Power supply circuit with switching frequency of saturable ferrite transformer controlled by class A amplifier | — | 1993-11-23 |
| 5216585 | Switching power source device | — | 1993-06-01 |
| 4736283 | Regulated voltage converter which has substantially fewer parts than prior art devices | — | 1988-04-05 |
| 4409523 | Pincushion distortion correction apparatus | — | 1983-10-11 |
| 4339792 | Voltage regulator using saturable transformer | Yoshio Ishigaki | 1982-07-13 |
| 4308495 | Transformer for voltage regulators | — | 1981-12-29 |
| 4215296 | Television deflection circuit | Ichiro Mitamura | 1980-07-29 |