Keitaro Oka

Title: Keitaro Oka: Innovator in Ball Screw Technology

Introduction

Keitaro Oka is a prominent inventor based in Fujisawa, Japan. He has made significant contributions to the field of mechanical engineering, particularly in the development of ball screw technology. With a total of 4 patents to his name, Oka's innovations have advanced the efficiency and functionality of various mechanical systems.

Latest Patents

Oka's latest patents include a novel design for a ball screw. This design features a screw, a nut, a plurality of balls, and a ball return path. A spiral screw groove is formed on the outer peripheral surface of the screw shaft, while the nut is disposed around the screw shaft with a corresponding spiral screw groove on its inner surface. The balls are housed in rolling paths formed by the two screw grooves facing each other. The ball return path circulates the balls in no more than one turn of the rolling paths. The length of the ball return path is carefully calibrated to optimize performance.

Another significant patent is the internal-deflector type ball screw. This design includes a screw shaft with a spiral external thread groove and a nut fitted onto the screw shaft with a spiral internal thread groove. A plurality of balls is rotatably arranged in a track path formed between the external and internal thread grooves. A piece member connects the internal thread grooves, enhancing the functionality of the ball screw.

Career Highlights

Keitaro Oka is currently employed at NSK Corporation, a leading company in the field of motion and control technologies. His work at NSK has allowed him to focus on innovative solutions that improve mechanical systems. Oka's expertise in ball screw technology has positioned him as a key player in the industry.

Collaborations

Oka collaborates with fellow inventor Kazunari Miyazaki. Their partnership has fostered a creative environment that encourages the development of cutting-edge technologies in mechanical engineering.

Conclusion

Keitaro Oka's contributions to ball screw technology exemplify his innovative spirit and dedication to engineering excellence. His patents reflect a deep understanding of mechanical systems and a commitment to advancing the field. Oka's work continues to influence the industry and inspire future innovations.