Location History:
- Fujisawa, JP (2000)
- Yokohama, JP (2005)
Company Filing History:
Years Active: 2000-2005
Title: Kazuhiro Fujiu: Innovator in Bearing Technology
Introduction
Kazuhiro Fujiu is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of bearing technology, holding a total of 2 patents. His work focuses on enhancing the performance and durability of rolling bearings.
Latest Patents
One of Fujiu's latest patents is for a rolling bearing that features a full complement angular ball bearing without a cage. This design includes a contact angle ranging from 10 to 45 degrees and an increased number of balls, making it suitable for severe conditions. The patent outlines methods to extend the bearing's life by defining the surface roughness of the inner and outer rings, adjusting the roughness ratio relative to the rolling element, and incorporating specific materials such as oxide ceramics and dense nitride layers. Additionally, it emphasizes the importance of avoiding particles larger than 3 micrometers on the raceway surfaces.
Another significant patent is for a cage designed for ball bearings. This cage features pockets with an inner surface that includes a spherical surface portion and cylindrical surface portions on either side. The spherical surface portion has a radius of curvature slightly larger than that of the rolling contact surface of the balls. This design reduces the area of contact, allowing for smoother lubrication supply to the pockets and minimizing noise caused by friction.
Career Highlights
Kazuhiro Fujiu is associated with NSK Corporation, a leading company in the bearing industry. His innovative designs and patents have contributed to the advancement of bearing technology, enhancing the reliability and efficiency of various applications.
Collaborations
Fujiu has collaborated with notable coworkers, including Shigeru Okita and Kazuo Sekino. Their combined expertise has fostered a creative environment that promotes innovation in bearing technology.
Conclusion
Kazuhiro Fujiu's contributions to the field of bearing technology through his patents and collaborations highlight his role as a significant inventor. His work continues to influence the industry, ensuring improved performance and longevity of bearing systems.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.