Tokyo, Japan

Masayuki Sakaguchi

This inventor holds 5 USPTO granted patents and 2 published patent applications and 4 EPO patents. Top assignees: Mitsubishi Electric Corporation, Jfe Steel Corporation. Active years: 2011-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masayuki Sakaguchi. Retrieved from https://idiyas.com/inventor/masayuki-sakaguchi-ovp66bvd

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

Calculating rank
USPTO Granted Patents = 5 

% Patents Active = 20.0

 

Average Co-Inventor Count = 3.2

ph-index = 1

Forward Citations = 5(Granted Patents)


Location History:

  • Chiyoda-ku, JP (2011 - 2017)
  • Tokyo, JP (2018 - 2022)

Company Filing History:


Years Active: 2011-2022

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5 patents (USPTO):Explore Patents

Title: Masayuki Sakaguchi: Pioneering Innovator in Rotary Electric Machines

Introduction

Masayuki Sakaguchi is a distinguished inventor based in Tokyo, Japan. With five patents to his name, he has made significant contributions to the field of rotary electric machines. His innovative designs are a testament to his expertise and creativity in engineering.

Latest Patents

Among Sakaguchi's latest inventions is a groundbreaking rotary electric machine. This machine features a rotating shaft that is supported by both front and rear bearings. It incorporates a field core securely affixed to the rotary shaft, along with a pulley that is integrally rotatable with the shaft. The design elegantly arranges the pulley, front bearing, and field core in a specific order, enhancing functionality and efficiency.

Additionally, Sakaguchi developed a rotary electric machine rotor, which consists of a rotor coil possessing a unique configuration. This rotor coil includes a lower coil wound around the outer circumference of a bobbin's winding drum portion, and a mountain-wound coil field, allowing the cross point positions of the coils to shift without altering the thickness of the winding drum. These innovations highlight his commitment to enhancing the performance of electric machinery.

Career Highlights

Masayuki Sakaguchi has held key positions at reputable companies such as Mitsubishi Electric Corporation and JFE Steel Corporation. His experience in these prestigious organizations has provided him with a robust foundation in engineering and design, enabling him to pioneer noteworthy innovations in his field.

Collaborations

Throughout his career, Sakaguchi has collaborated with talented colleagues, including Yoshikazu Kawabata and Kei Sakata. Their joint efforts have contributed to the development of innovative technologies in rotary electric machines, further solidifying Sakaguchi's reputation as a leading inventor.

Conclusion

Masayuki Sakaguchi's contributions to the realm of rotary electric machines through his patented inventions exemplify the spirit of innovation. His career achievements, coupled with his collaborative efforts, continue to inspire advancements in technology. As a transformative figure in his field, Sakaguchi's work will undoubtedly influence future developments in electric machinery.

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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