Yoshinari Sakai

Title: Innovations of Yoshinari Sakai

Introduction

Yoshinari Sakai is a prominent inventor based in Takahama, Japan. He has made significant contributions to the field of engineering, particularly in the development of constant-velocity universal joints. With a total of 10 patents to his name, his work has had a lasting impact on automotive technology.

Latest Patents

One of his latest patents involves a constant-velocity universal joint that features a generally cup-shaped outer joint member and an inner joint member. This innovative design defines first and second groove portions. The pinch angle by which a ball is pinched in the first groove portion opens toward the opening of the outer joint member, while the pinch angle in the second groove is directed toward the bottom of the outer joint member. Notably, the absolute value of the pinch angle in the larger-pinch-angle groove portion exceeds that of the smaller-pinch-angle groove portion in a reference state. Additionally, the radial clearance in the smaller-pinch-angle groove portion is larger than that in the larger-pinch-angle groove portion when torque is not transmitted.

Career Highlights

Throughout his career, Yoshinari Sakai has worked with notable companies such as JTEKT Corporation and Toyota Jidosha Kabushiki Kaisha. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in the automotive sector.

Collaborations

Yoshinari has collaborated with talented individuals in his field, including Tatsuya Yoshii and Koichiro Mizuno. These partnerships have fostered a creative environment that has led to the development of advanced technologies.

Conclusion

Yoshinari Sakai's contributions to the field of engineering, particularly in the design of constant-velocity universal joints, showcase his innovative spirit and dedication to advancing automotive technology. His work continues to influence the industry and inspire future inventors.