This inventor holds 35 USPTO granted patents, primarily in Rolling Bearings. Top assignees: Nsk Corporation, Kyodo Yushi Co., Ltd., Nippon Oil Company. Active years: 1983-2020.
Location History:
- Fujisawa, JP (1983)
- Odawara, JP (1991 - 1998)
- Kanagawa, JP (1995 - 2020)
Company Filing History:
30 out of 2,466Â 
3 out of 89Â 
3 out of 690Â Years Active: 1983-2020
Areas of Expertise:
Title: Michiharu Naka: Innovator in Grease Composition and Rolling Bearings
Introduction
Michiharu Naka, based in Kanagawa, Japan, is a prominent inventor known for his significant contributions to the field of engineering, particularly in the development of specialized lubricants and rolling bearings. With an impressive portfolio of 35 patents, Naka's innovations continue to impact various industries, ensuring efficient operations and enhanced performance of machinery.
Latest Patents
Naka's latest patents highlight his expertise in grease compositions and rolling bearing technology. One notable patent focuses on a grease composition for rolling bearings that includes a metal soap-based thickening agent with long fiber-like materials integrated into a base oil. This innovative lubricant formulation, which contains polar and non-polar components, improves the performance and longevity of rolling bearing applications. Another significant patent involves a rolling bearing designed for use in fuel cell systems. This invention utilizes a specialized fluorine-based grease that contains both fluororesin and fluorine-based oil, along with urea grease or lithium complex grease. Such innovations aim to prevent grease deterioration, thus ensuring the fuel cell system maintains stable operations over extended periods.
Career Highlights
Throughout his career, Michiharu Naka has had a substantial impact on the technology landscape, particularly while working for notable companies such as NSK Corporation and Nippon Oil Company. His experience in these organizations has enabled him to refine his areas of expertise and contribute valuable solutions to complex engineering challenges.
Collaborations
Naka has worked alongside esteemed colleagues, including Atsushi Yokouchi and Hideki Koizumi, fostering a collaborative environment that stimulates innovation and excellence in engineering. Their joint efforts have led to advancements that benefit both the industry and end-users.
Conclusion
In conclusion, Michiharu Naka stands out as a leading inventor whose work in grease compositions and rolling bearings is pivotal to the advancement of technology in machinery and fuel cell systems. His patents not only exemplify creativity and technical expertise but also demonstrate a commitment to enhancing operational efficiency across various sectors.