Tokyo, Japan

Yuji Nakahara

This inventor holds 37 USPTO granted patents and 5 EPO patents, primarily in Rotary Electric Machines. Top assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Corporation. Active years: 1994-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yuji Nakahara. Retrieved from https://idiyas.com/inventor/yuji-nakahara

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


% Patents Active = 81.1

 

Average Co-Inventor Count = 5.3

ph-index = 14

Forward Citations = 582(Granted Patents)


Location History:

  • Amagasaki, JP (1995)
  • Hyogo, JP (1999 - 2002)
  • Tokyo, JP (1994 - 2015)
  • Chiyoda-ku, JP (2018)

Company Filing History:


Years Active: 1994-2018

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Areas of Expertise:
Rotary Electric Machine
Laminated Core
Manufacturing Method
Linear Motor
Permanent Magnet
Coil Conductor
Dynamo-Electric Machine
Stator
Armature
Magnetic Core
Rotary Motor
Commutator
37 patents (USPTO):Explore Patents

Title: Innovations by Yuji Nakahara

Introduction

Yuji Nakahara, an influential inventor based in Tokyo, Japan, has made significant contributions to the field of electrical engineering, particularly in the design and functionality of rotary electric machines. With a remarkable portfolio of 37 patents, Nakahara's innovations stand at the forefront of modern technology.

Latest Patents

Nakahara's latest inventions demonstrate his expertise in improving rotary electric machine cores. One of his notable patents is the core for a rotary electric machine, which features a design where the first end portions of back yoke portions are rotatably linked to adjacent core segments. This design allows for movement between contracted and expanded positions, optimizing the spacing between magnetic pole tooth portions for enhanced performance. Another significant patent describes a rotary electric machine laminated core, which positions a rotating shaft closer to the outer circumferential surface. This innovation includes a gap-forming notch in the back yoke portion, allowing for improved alignment and interaction between the projecting portions and recess portions of the core segments.

Career Highlights

Throughout his career, Nakahara has worked with leading companies, including Mitsubishi Denki Kabushiki Kaisha and Mitsubishi Electric Corporation. His tenure at these institutions has provided him with the platform to develop and refine his innovative ideas, establishing him as a key contributor to advancements in rotary electric machinery.

Collaborations

Nakahara has collaborated with esteemed colleagues such as Nobuaki Miyake and Akira Hashimoto. Together, they have pushed the boundaries of engineering and technology, sharing knowledge and insights that have led to successful patent applications and groundbreaking inventions.

Conclusion

Yuji Nakahara's innovative spirit and dedication to his craft have resulted in numerous patents that significantly impact the field of electrical engineering. His work continues to inspire future inventors and underscores the importance of collaboration and ingenuity in driving technological advancements.

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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