Location History:
- Kawasaki, JP (1994)
- Hyogo, JP (1995)
- Fujisawa, JP (2011)
Company Filing History:
Years Active: 1994-2011
Title: Innovations of Yoichi Imamura in Rolling Bearing Technology
Introduction
Yoichi Imamura, an esteemed inventor based in Kawasaki, Japan, has made significant contributions to the field of rolling bearing technology. With a total of three patents to his name, Imamura's innovations focus on improving the performance and reliability of rolling bearings, particularly under extreme temperature conditions.
Latest Patents
Imamura's latest patents showcase advancements in grease compositions for rolling bearings. One notable invention involves a grease composition with an apparent viscosity of 5 to 200 Pa·s at -30° C., intended for use in rolling bearings retaining multiple rolling elements between an inner ring and an outer ring. This innovation ensures satisfactory lubrication performance and minimal abnormal noise generation, even at frigid temperatures of around -40° C.
Another key patent pertains to the structural design of the rolling bearing itself. This invention outlines a rolling bearing that consists of an outer race with an inner-race raceway and an outer-race raceway where several rolling elements are interposed for rotation. The breakthrough design emphasizes durability, featuring either the inner or outer raceways made of steel with an oxygen content not exceeding 6 ppm, and includes a synthetic lubricant with specific viscosity characteristics. Moreover, the lubricant contains a polyurea compound thickener, enhancing its performance in demanding environments.
Career Highlights
Imamura is currently associated with NSK Corporation, a leading firm in the bearing manufacturing industry. His work there centers on developing innovative solutions that address contemporary challenges associated with rolling bearings, reinforcing NSK's reputation for quality and performance in automotive and industrial applications.
Collaborations
Throughout his career, Yoichi Imamura has collaborated with notable colleagues, including Fusasuke Goto and Norihiro Aoki. These partnerships have facilitated the exchange of ideas and expertise, contributing to the successful development of advanced bearing technologies.
Conclusion
In summary, Yoichi Imamura's contributions to rolling bearing technology through his innovative patents have markedly improved the performance and reliability of such products. His work not only reflects individual ingenuity but also the collaborative spirit of teamwork at NSK Corporation, setting a standard for future advancements in the field.