Kanagawa, Japan

Hirotoshi Miyajima

This inventor holds 3 USPTO granted patents. Top assignee: Nsk Corporation. Active years: 2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirotoshi Miyajima. Retrieved from https://idiyas.com/inventor/hirotoshi-miyajima

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


Average Co-Inventor Count = 4.7

ph-index = 2

Forward Citations = 17(Granted Patents)


Location History:

  • Kanagawa, JP (2007)
  • Fujisawa, JP (2007)

Company Filing History:


Years Active: 2007

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3 patents (USPTO):Explore Patents

Title: Hirotoshi Miyajima: Innovator in Linear Motion Devices

Introduction

Hirotoshi Miyajima is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of engineering, particularly in the development of linear motion devices. With a total of 3 patents to his name, Miyajima's work showcases his innovative spirit and technical expertise.

Latest Patents

Miyajima's latest patents include a linear motion device that features a linear motion body fitted onto a shaft, allowing for relative linear motion along the shaft. This device incorporates a plurality of balls retained in a rolling element groove, which roll between the groove and the shaft. Additionally, separators are interposed among the balls, and a circulating path is formed within the linear motion body to facilitate the circulation of the balls. The device is designed to be charged with grease that meets specific viscosity and penetration standards.

Another significant patent involves a rolling bearing designed for use in a fuel cell system. This rolling bearing incorporates a specialized grease that includes a fluorine-based oil and a urea compound, which helps prevent grease deterioration. This innovation is crucial for maintaining stable operation in fuel cell systems over extended periods.

Career Highlights

Miyajima is currently employed at NSK Corporation, a leading company in the manufacturing of bearings and motion control products. His work at NSK has allowed him to focus on developing advanced technologies that enhance the performance and reliability of mechanical systems.

Collaborations

Throughout his career, Miyajima has collaborated with esteemed colleagues such as Masahiko Yamazaki and Yasunobu Fujita. These collaborations have contributed to the advancement of innovative solutions in the engineering sector.

Conclusion

Hirotoshi Miyajima's contributions to the field of linear motion devices and fuel cell systems highlight his role as a key innovator in engineering. His patents reflect a commitment to enhancing technology and improving the functionality of mechanical systems.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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