Tokyo, Japan

Yutaro Shirai

This inventor holds 5 USPTO granted patents. Top assignee: Mitsubishi Electric Corporation. Active years: 2017-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yutaro Shirai. Retrieved from https://idiyas.com/inventor/yutaro-shirai

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


% Patents Active = 60.0

Average Co-Inventor Count = 4.3

ph-index = 3

Forward Citations = 18(Granted Patents)


Location History:

  • Chiyoda-ku, JP (2017)
  • Tokyo, JP (2017 - 2018)

Company Filing History:


Years Active: 2017-2018

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5 patents (USPTO):Explore Patents

Title: The Innovations of Yutaro Shirai: Pioneering Electrical Machine Technologies

Introduction: Yutaro Shirai is a notable inventor based in Tokyo, Japan, recognized for his contributions to the field of electrical engineering. With a remarkable portfolio of five patents, Shirai has significantly advanced technologies related to rotating electrical machines, enhancing their efficiency and performance.

Latest Patents: Among Shirai's latest innovations are two significant patents that focus on the armature of rotating electrical machines. The first patent details an armature designed to improve heat dissipation performance of an edgewise coil, ultimately enhancing the efficiency of the machine. This armature consists of a core with a yoke and tooth sections, an edgewise coil formed with rectangular wire, and a heat transfer member that fills a gap between the tooth section and the coil.

The second patent presents an armature for a rotary electric machine featuring a core with an array of teeth arranged circumferentially, along with multiple edgewise coils. This design ensures that the arrangement of the coils reduces potential compressive stresses and optimizes the performance of the device, further demonstrating Shirai's innovative approach to electrical machine design.

Career Highlights: Yutaro Shirai's enriching career is marked by his innovative work at Mitsubishi Electric Corporation. His dedication and expertise in electrical engineering have contributed to the company's reputation as a leader in technology. Shirai’s inventions reflect a deep understanding of the challenges faced in electrical machine technology, allowing him to propose effective solutions.

Collaborations: While at Mitsubishi Electric Corporation, Shirai has collaborated with other talented engineers, including Shinichiro Yoshida and Masaya Inoue. These collaborations have not only promoted a creative working environment but have also led to the development of groundbreaking technologies within the electrical engineering sphere.

Conclusion: Yutaro Shirai stands out as a prominent inventor whose work has left a significant impact on the field of rotating electrical machines. His patents illustrate a commitment to innovation and efficiency, paving the way for advancements that benefit various technologies today. As the field continues to evolve, contributions like those of Shirai are invaluable in driving progress and reshaping the future of electrical engineering.

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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