Junya Ooitsu

Title: Junya Ooitsu: Innovator in Rolling Bearing Technology

Introduction

Junya Ooitsu is a notable inventor based in Kashiwara, Japan, recognized for his contributions to the field of rolling bearing technology. With a remarkable portfolio of 8 patents, Ooitsu has dedicated his career to improving the functionality and efficiency of bearings used in various applications.

Latest Patents

Among his latest patents, Junya Ooitsu developed an innovative rolling bearing featuring a resin cage. This cage is injection-molded from a mixture that includes a thermoplastic resin known for its excellent outgassing characteristics, along with reinforcing fibers and lubricating components. Additionally, a lubricating film composed of a fluorine-containing polymer is applied to the rolling surfaces and sliding surfaces of the bearing's constituent members, which include the inner and outer races, rolling elements, and the cage itself. This unique lubricating film enhances lubricity at the early stages of rotation, effectively suppressing initial abrasion of the cage and ensuring stable operation over time through the synergistic action of the film and micro wear powder produced by the cage.

Further, his patent for a rolling bearing includes an inner ring, an outer ring that is concentric with the inner ring, and a plurality of rolling elements positioned between them. The cage in this design is made from a thermoplastic resin, with reinforced fibers and solid lubricants like polytetrafluoroethylene, molybdenum disulfide, and graphite mixed into the base material.

Career Highlights

Junya Ooitsu has established himself as a valued innovator at Koyo Seiko Company, Ltd., where he applies his expertise to create advanced bearing solutions. His work has markedly contributed to the evolution of rolling bearing technologies, enhancing their reliability and performance.

Collaborations

Throughout his career, Ooitsu has collaborated with notable colleagues including Hajime Tazumi and Yoshitaka Nakagawa. These collaborations have fostered innovation and have been integral to the advancement of the technologies in which they specialize.

Conclusion

Junya Ooitsu's innovations in rolling bearing technology, through his multiple patents and collaborative efforts, exemplify the impact that dedicated inventors can have on industry. His work not only enhances performance but also paves the way for future advancements in bearing technology.