Kentaro Mikawa

Title: Kentaro Mikawa: Innovator in Variable Valve Timing Mechanisms

Introduction

Kentaro Mikawa is a prominent inventor based in Isesaki, Japan. He has made significant contributions to the field of automotive technology, particularly in the development of control apparatuses for variable valve timing mechanisms. With a total of 14 patents to his name, Mikawa's work has had a substantial impact on engine performance and efficiency.

Latest Patents

Mikawa's latest patents include a control apparatus and control method for variable valve timing mechanisms. This invention features a crank angle sensor that outputs a crank angle signal in response to the rotation of a crankshaft. The crank angle signal is preset to indicate reference positions. Additionally, it includes a cam sensor that outputs cam signal pulses in response to the rotation of an intake camshaft for opening and closing an engine valve. An electric motor is employed to relatively rotate the intake camshaft with respect to the crankshaft, allowing for changes in the rotational phase angle of the intake camshaft. Furthermore, an electronic control unit computes the actual rotational phase angle of the intake camshaft based on detected signals, enabling precise control of the variable valve timing mechanism.

Another notable patent is the motor drive controller and method for detecting abnormalities in the motor power supply line. This controller comprises a driver unit with semiconductor switches for adjusting power supplied to a motor. The control unit outputs a control signal to the driver unit for managing the on and off states of the semiconductor switches. An overcurrent monitoring unit is included to detect abnormalities in the motor power supply line, enhancing the reliability and safety of the motor operation.

Career Highlights

Kentaro Mikawa has worked with esteemed companies such as Hitachi Automotive Systems and Hitachi, Ltd. His experience in these organizations has allowed him to refine his skills and contribute to innovative projects in automotive technology.

Collaborations

Mikawa has collaborated with notable colleagues, including Naoki Okamoto and Nobuhiko Matsuo. Their teamwork has fostered advancements in the field and has led to the successful development of various technologies.

Conclusion

Kentaro Mikawa is a distinguished inventor whose work in variable valve timing mechanisms and motor control systems has significantly influenced automotive engineering. His numerous patents reflect his dedication to innovation and excellence in technology.