Kazufumi Nakagawa

Title: Kazufumi Nakagawa: Innovator in Bearing Technology

Introduction

Kazufumi Nakagawa is a prominent inventor based in Okayama, Japan. He has made significant contributions to the field of mechanical engineering, particularly in the design and functionality of bearings. With a total of 2 patents to his name, Nakagawa continues to push the boundaries of innovation in his industry.

Latest Patents

One of Nakagawa's latest patents is for a tapered roller bearing. This invention focuses on the precise finishing of the raceway groove width (W) of the inner ring and the length (L) of the tapered roller, ensuring they are within predetermined dimensional tolerances. The design includes a retaining rib face that is machined to be parallel to the small end faces of the tapered rollers, securing clearances within a defined dimensional range.

Another notable patent is for an autotensioner designed for a belt. This autotensioner features a pulley support shaft that is secured to a base, along with an eccentric ring that is rotatably supported by the pulley support shaft. The pulley is supported around the eccentric shaft through a rolling bearing, and a spring is included to press the pulley against the belt. Additionally, a damper is incorporated to provide resistance to the rotation of the eccentric ring, enhancing the overall functionality of the device.

Career Highlights

Kazufumi Nakagawa is currently employed at NTN Corporation, a leading company in the manufacturing of bearings and related products. His work at NTN has allowed him to develop innovative solutions that address the needs of various industries.

Collaborations

Throughout his career, Nakagawa has collaborated with talented individuals such as Kazumi Adachi and Kazunori Urakami. These collaborations have fostered a creative environment that encourages the exchange of ideas and the development of cutting-edge technologies.

Conclusion

Kazufumi Nakagawa is a distinguished inventor whose work in bearing technology has made a lasting impact on the industry. His innovative patents and collaborations with fellow engineers highlight his commitment to advancing mechanical engineering. Nakagawa's contributions continue to inspire future innovations in the field.