Kenichi Hirano

Title: Kenichi Hirano: Vehicle Closure and Motor Control Innovations.

Introduction

Kenichi Hirano is an inventor based in Novi, Michigan, whose work focuses on control systems for vehicle components. His listed portfolio includes 2 patents, addressing motor control for sliding doors and safety monitoring for vehicle closure members. Hirano is associated with Mitsuba Corporation.

Latest Patents

**Motor Control Device.** This invention is designed to control the speed of a vehicle’s sliding door as it opens and closes. A control unit adjusts the motor’s duty-ratio command so the door’s movement follows a preset target velocity. The system uses upper- and lower-stage switching elements and can turn on all elements in one stage according to the command value, supporting accurate velocity control.

**Control Device for a Closure Member of a Vehicle.** This system evaluates whether an object is being pinched by a powered vehicle closure member. It calculates estimated load and motor torque using motor rotation speed, acceleration, and drive voltage, then compares these values with a reference torque based on the motor’s stationary state. The device can determine that no pinching has occurred when either the estimated load or motor torque is below the reference torque, even if the estimated load exceeds a specified threshold.

Career Highlights

Hirano’s listed inventions apply motor-control techniques to practical vehicle functions. One patent focuses on smooth, controlled sliding-door movement, while the other addresses detection of potential pinching during operation of a vehicle closure member. Together, they reflect an emphasis on control accuracy and safety.

Collaborations

Hirano is associated with Mitsuba Corporation. His listed coworkers include Narimitsu Kobori and Akira Kadoya.

Conclusion

Kenichi Hirano’s patent work centers on improving the control and safety of powered vehicle closures, including sliding doors and other closure members.