Shigeo Tanooka

Title: **Shigeo Tanooka: A Pioneer in Torque Transmission Technology**

Introduction

Shigeo Tanooka, an innovative inventor from Okazaki, Japan, has made significant contributions to the field of torque transmission devices with a portfolio of 8 patents. His work primarily focuses on enhancing the efficiency and functionality of four-wheel drive vehicles, showcasing a deep understanding of automotive engineering.

Latest Patents

One of Tanooka's notable inventions is the **Torque Transmission Device for a Four-Wheel Drive Vehicle**. This device features a rotary housing connected to either the front or rear drive shafts, with a rotary shaft that connects to the other shaft. Central to this invention is a multiple disc clutch device that employs friction engagement between alternately arranged outer and inner clutch discs. The design incorporates an axially movable piston to exert pressure on the clutch discs, ensuring efficient transmission of rotational power. Additionally, within its unique structure, a rotor equipped with radially extending blades rotates the high-viscosity silicon oil, generating pressure that facilitates the transfer of torque between housing and shaft.

Another significant invention is the **Driving Torque Transmitting Device**. This device includes a differential case that transmits engine torque, featuring side gears that mesh with pinion gears. The innovative design consists of two annular pistons in the differential case, creating closed actuating chambers charged with high-viscosity oil. Relative rotation between the axle shafts and the differential case generates high pressure in these chambers, effectively pushing the pistons to engage the side gears tightly with the pinion gears, allowing for integrated rotation.

Career Highlights

Shigeo Tanooka has worked for prominent companies in the automotive industry, including Toyoda Koki and Toyota Motor Corporation. His experience in these institutions has significantly shaped his technical skills and inventive prowess, enabling him to develop advanced torque transmission solutions vital for modern vehicles.

Collaborations

Throughout his career, Tanooka has collaborated with notable coworkers, including Masaji Yamamoto and Toshifumi Sakai. Their collective expertise and innovative thinking have contributed to advancing the technology and reliability of automotive components.

Conclusion

Shigeo Tanooka's contributions to torque transmission technology have played a vital role in the enhancement of four-wheel drive vehicles. Through his inventive solutions and collaborations, he has established himself as a key figure in automotive innovation, demonstrating the importance of research and development in this continually evolving field.