Yoshinari Tokunaga

Title: Innovations of Yoshinari Tokunaga

Introduction

Yoshinari Tokunaga is a notable inventor based in Kariya, Japan. He has made significant contributions to the field of internal combustion engines, holding a total of 2 patents. His work focuses on enhancing the efficiency and functionality of engine control systems.

Latest Patents

One of his latest patents is a stop control device for internal combustion engines. This device is designed to stop the engine in a state that is optimal for starting, ensuring that the crank angle remains unchanged after the engine is stopped. The device includes an electric valve opening and closing timing control mechanism that adjusts the timing of the intake and exhaust valves. The stop control is activated upon receiving a stop signal, and post-stop phase control is implemented to adjust the valve timing after the engine has been halted.

Another significant patent by Tokunaga is the valve timing control unit. This unit comprises a valve timing control mechanism that features a driving rotary body, a driven rotary body, an electric motor, and a deceleration gear. These components work together to set the relative rotational phase between the driving and driven bodies. The unit also includes a phase sensor that detects the actual phase, while a controller manages the electric motor to minimize the phase difference between the actual and target phases.

Career Highlights

Throughout his career, Yoshinari Tokunaga has worked with prominent companies in the automotive industry, including Aisin Corporation and Mazda Motor Corporation. His experience in these organizations has allowed him to develop innovative solutions that address complex engineering challenges.

Collaborations

Some of his notable coworkers include Takano Nakai and Yoshiyuki Kamoyama. Their collaboration has contributed to the advancement of technologies in the automotive sector.

Conclusion

Yoshinari Tokunaga's contributions to the field of internal combustion engines through his patents demonstrate his innovative spirit and technical expertise. His work continues to influence the automotive industry, paving the way for future advancements.