Tatsuya Oba

Title: Tatsuya Oba: Innovator in Automatic Transmission Technology

Introduction

Tatsuya Oba is a notable inventor based in Nishio, Japan. He has made significant contributions to the field of automatic transmission technology. With a total of 2 patents, his work focuses on enhancing the efficiency and reliability of automatic transmission systems.

Latest Patents

One of Tatsuya Oba's latest patents is titled "Control apparatus for automatic transmission and control method thereof." This invention addresses the operation of controlling an automatic transmission by determining the engagement pressure for each hydraulic servo. The goal is to ensure that none of the friction engagement elements slips at each shift speed during normal operation. In the event of a failure, where a friction engagement element that should be disengaged remains engaged, the system allows one of the friction engagement elements to slip, thereby establishing a shift speed. The control operation detects a failure state where the gear ratio after a shift operation differs from the intended shift speed, leading to the disengagement of the slipping friction engagement element.

Another significant patent by Oba is the "Control apparatus for automatic transmission." This invention involves a control apparatus that includes an automatic speed change mechanism. The mechanism connects an input shaft to a drive source and an output shaft to driving wheels. It utilizes multiple friction engagement elements to perform shifting operations among various shift speeds by altering the engagement and disengagement states of these elements.

Career Highlights

Tatsuya Oba is currently employed at Aisin Aw Co., Ltd., a company known for its innovations in automotive technology. His work at Aisin Aw has allowed him to focus on developing advanced solutions for automatic transmissions, contributing to the company's reputation as a leader in the automotive industry.

Collaborations

Throughout his career, Tatsuya has collaborated with talented individuals such as Masaki Nishide and Shin-ichirou Murakami. These collaborations have fostered a creative environment that encourages innovation and the development of cutting-edge technologies.

Conclusion

Tatsuya Oba's contributions to automatic transmission technology through his patents and work at Aisin Aw Co., Ltd. highlight his role as a significant inventor in the automotive field. His innovative approaches continue to influence the industry and improve vehicle performance.