Minoru Kaminaga

Title: Minoru Kaminaga: Inventor in Electric-Car Control

Introduction

Minoru Kaminaga is an inventor associated with Katsuta, Japan. His work includes inventions for electric-car control and power-transistor chopper systems. He is credited with 3 patents.

Latest Patents

Kaminaga’s listed patents address control of electric motors and power electronics.

- **Electric-car controller.** This invention combines a chopper that controls a DC motor’s speed with a bypass contactor that can connect the DC source directly to the motor. The controller detects when the acceleration command reaches or exceeds a specified level and when the car’s acceleration falls to or below a specified level. When both conditions are met, it turns on the bypass contactor.

- **Transistor control device for power transistor chopper.** This device charges a capacitor that supplies base current to the chopper transistor. It uses electrical energy stored in the impedance of wiring between a DC power source and the load, where the load receives current through the chopper.

Career Highlights

Kaminaga’s listed company affiliations include Hitachi, Ltd. and Hitachi Automotive Engineering Co., Ltd. His patent work reflects an emphasis on electric-car control and transistor-based power conversion.

Collaborations

Kaminaga’s listed coworkers include Koichi Kaminishi and Shigeru Kuriyama.

Conclusion

Minoru Kaminaga’s recorded inventions focus on practical control systems for electric vehicles and power-transistor choppers, alongside professional affiliations with Hitachi companies.