Yasuo Shigenaka

Title: Innovator Yasuo Shigenaka: Pioneering Hydraulic Control Systems

Introduction

Yasuo Shigenaka is an accomplished inventor based in Otake, Japan. With a total of five patents to his name, Shigenaka has made significant contributions to the field of hydraulic control devices, particularly in the automotive industry.

Latest Patents

Shigenaka's recent innovations include a hydraulic pressure control device and a control device for automatic transmissions. The hydraulic pressure control device is designed for automatic transmissions, facilitating gear shifts by managing the engagement and disengagement of multiple friction engagement elements. This invention incorporates solenoid valves that correspond to these elements, allowing for precise control of hydraulic pressure. The control device is intelligent, supplying a fixation preventing current that operates below a predetermined control current to maintain optimal functionality.

Additionally, his control device for automatic transmission features a parking lock mechanism that locks and unlocks the power transmission shaft. This device employs a parking drive mechanism responsive to hydraulic pressure, and a regulating mechanism that ensures the parking rod remains in position under various conditions. A sophisticated controller further enhances its effectiveness by maintaining hydraulic pressure even when the vehicle's power is turned off, if the engine speed exceeds a given threshold.

Career Highlights

Yasuo Shigenaka is currently employed at Mazda Motor Corporation, where he plays a key role in the development of advanced transmission systems. His work has not only improved the functionality of automatic transmissions but has also enhanced overall vehicular safety and efficiency.

Collaborations

In his innovative endeavors, Shigenaka collaborates with talented colleagues, including Shinya Kamada and Motomi Kobayashi. Together, they work on pioneering technologies that push the boundaries of automotive engineering and contribute to Mazda's reputation for quality and innovation.

Conclusion

Yasuo Shigenaka stands out as a notable inventor whose work in hydraulic control systems has significant implications for the automotive industry. His commitment to innovation continues to drive advancements in vehicle technology, and his contributions will likely influence the next generation of automatic transmissions.