Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5986908 | Magnetic-coupling multivibrator | Katsunori Sugimori, Hiroshi Sakamoto | 1999-11-16 |
| 5850045 | Magnetostrictive stress sensor and apparatus applying same | Ichiro Sasada, Fumitaka Koga, Nobutomo Matsunaga, Shuichi Misumi | 1998-12-15 |
| 4926302 | Switching power source device | Hiroshi Sakamoto | 1990-05-15 |
| 4800476 | PWM inverter with a saturable core | Hiroshi Sakamoto | 1989-01-24 |
| 4772994 | Power source using high-frequency phase control | Hiroshi Sakamoto, Masahito Shoyama | 1988-09-20 |
| 4553199 | High frequency power supply device | Katsuaki Murata | 1985-11-12 |