Location History:
- Kanagawa, JP (2002 - 2003)
- Fujisawa, JP (2010)
Company Filing History:
Years Active: 2002-2010
Title: Innovations by Jun Liu in Rolling Bearing Technology
Introduction
Jun Liu is a notable inventor based in Kanagawa, Japan, recognized for his contributions to rolling bearing technology. He holds a total of 3 patents, showcasing his expertise and innovative spirit in this specialized field.
Latest Patents
One of Jun Liu's latest patents is for a thrust cylindrical roller bearing. This invention focuses on the diameter dimension of a chamfer formed on the axial end faces of a cylindrical roller retained in a cage. The axial positioning is achieved through a roller guide, ensuring that a central flat surface on the inside diameter side of the chamfer is not exposed from the external surface of the outside diameter side flat plate portion. Additionally, the design minimizes the difference between the projection of the cylindrical roller and the dimension of the chamfer in relation to the thickness of the cage.
Another significant patent is for a rolling bearing and rolling bearing device. This invention incorporates a plurality of rolling elements into a raceway groove formed between outer and inner races. Each rolling element has a curvature in the axial direction and a radius smaller than that of the raceway surfaces. The arrangement of these rolling elements allows them to cross each other alternately, ensuring that they maintain contact at two points with the raceway surfaces of both races.
Career Highlights
Jun Liu is currently employed at NSK Corporation, a leading company in the field of rolling bearings and precision machinery. His work has significantly advanced the design and functionality of rolling bearings, contributing to improved performance in various applications.
Collaborations
Throughout his career, Jun Liu has collaborated with esteemed colleagues such as Yoshio Shoda and Yukio Sato. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.
Conclusion
Jun Liu's innovative contributions to rolling bearing technology exemplify his expertise and commitment to advancing engineering solutions. His patents reflect a deep understanding of mechanical design and functionality, making him a valuable figure in the industry.