Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4620073 | Pressure-responsive apparatus having hysteresis to prevent hunting | Akio Matsumoto | 1986-10-28 |
| 4604565 | Microcomputer-controlled DC three-wire circuit for vehicle | Akio Matsumoto, Mitsuharu Morishita | 1986-08-05 |
| 4596514 | Pressure responsive pump drive motor control apparatus having spot switch and alarm lamp | Akio Matsumoto | 1986-06-24 |
| 4564799 | Two-battery power supply system for vehicles | Yoshiyuki Iwaki, Akio Matsumoto | 1986-01-14 |
| 4539515 | Vehicular direct-current three-wire electric system | Mitsuharu Morishita, Akio Matsumoto | 1985-09-03 |
| 4525125 | Pressure responsive pump control system having an alarm lamp | Akio Matsumoto | 1985-06-25 |
| 4524311 | Control for pumping devices used in vehicles | Akio Matsumoto | 1985-06-18 |
| 4524312 | Control for pumping devices used in vehicles | Akio Matsumoto | 1985-06-18 |
| 4521651 | Diaphragm apparatus having a magnetically imparted hysteresis characteristic | Akio Matsumoto | 1985-06-04 |
| 4518903 | Delayed turn-off control for vehicle pumping device | Akio Matsumoto | 1985-05-21 |
| 4518316 | Pressure sustaining apparatus | — | 1985-05-21 |
| 4510425 | Control device for pump apparatus for vehicular use | Akio Matsumoto | 1985-04-09 |
| 4496898 | Vehicle A.C. generator with constant output power | Yoshiyuki Iwaki, Akio Matsumoto | 1985-01-29 |
| 4464594 | Vehicular generator with cooling fan made of rubber covered shape memorizing alloy | Akio Matsumoto, Mitsuharu Morishita, Shinichi Kouge | 1984-08-07 |
| 4451776 | Charging generator control system | Yoshiyuki Iwaki, Akio Matsumoto | 1984-05-29 |