Kiryu, Japan

Hiroshi Hiruma

This inventor holds 3 USPTO granted patents and 1 EPO patent. Top assignee: Mitsuba Corporation. Active years: 1999-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Hiruma. Retrieved from https://idiyas.com/inventor/hiroshi-hiruma

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


% Patents Active = 100.0


Average Co-Inventor Count = 3.3

ph-index = 2

Forward Citations = 10(Granted Patents)


Location History:

  • Gunma-Ken, JP (1999)
  • Kiryu, JP (2001 - 2002)

Company Filing History:


Years Active: 1999-2002

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3 patents (USPTO):Explore Patents

Title: Innovations of Hiroshi Hiruma

Introduction

Hiroshi Hiruma is a notable inventor based in Kiryu, Japan. He has made significant contributions to the field of engineering, particularly in the development of innovative machinery. With a total of 3 patents to his name, Hiruma's work reflects a commitment to enhancing technology and manufacturing processes.

Latest Patents

Hiruma's latest patents include a one-axis starter apparatus and a method of securing magnets in revolving electric machines. The one-axis starter apparatus eliminates the need for a one-way rotation clutch, simplifying the machining of the motor shaft. This invention features a first male helical spline at the tip of the motor shaft, with an inner member that is externally fitted via a first female helical spline. Additionally, the second male helical spline is designed in the opposite direction to the first, enhancing the apparatus's functionality.

The method of securing magnets involves a unique process where a magnet cover is press-fitted into the inner peripheral surfaces of magnets arranged on a hollow cylindrical yoke. This innovative approach allows for the magnets to be rigidly secured without the need for a through hole in the closure wall of the yoke, thereby reducing manufacturing costs.

Career Highlights

Hiruma is currently employed at Mitsuba Corporation, where he continues to develop and refine his inventions. His work at the company has positioned him as a key player in the engineering sector, contributing to advancements in electric machinery.

Collaborations

Hiruma has collaborated with notable coworkers such as Shuji Uehara and Kenichi Yokoyama. Their combined expertise has fostered an environment of innovation and creativity within their projects.

Conclusion

Hiroshi Hiruma's contributions to engineering through his patents and work at Mitsuba Corporation highlight his role as a significant inventor in Japan. His innovative approaches to machinery design continue to influence the industry positively.

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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