Chiryu, Japan

Masafumi Sakuma

This inventor holds 32 USPTO granted patents and 7 published patent applications and 3 EPO patents, primarily in Rotating Electric Machines. Top assignees: Aisin Seiki Kabushiki Kaisha, Aisin Corporation, Toyota Jidosha Kabushiki Kaisha. Active years: 1998-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masafumi Sakuma. Retrieved from https://idiyas.com/inventor/masafumi-sakuma

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

USPTO Granted Patents = 32 

% Patents Active = 56.3

 

Average Co-Inventor Count = 2.1

ph-index = 8

Forward Citations = 224(Granted Patents)


Location History:

  • Aichi Pref., JP (1999)
  • Chriyu, JP (1999)
  • Aichi-ken, JP (2002 - 2006)
  • Chiryu, JP (1998 - 2022)
  • Kariya, JP (2010 - 2022)

Company Filing History:


Years Active: 1998-2022

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Areas of Expertise:
Rotary Electric Machine
Stator Manufacturing
In-Wheel Motor
Electric Motor
Synchronous Reluctance Motor
Cooling Device
Laminated Core
Wave Winding Coil
Driving Power Control
Motor Design
Rotating Electrical Machine
32 patents (USPTO):Explore Patents

Title: **Masafumi Sakuma: Innovative Contributions to Electrical Engineering**

Introduction

Masafumi Sakuma, based in Chiryu, Japan, is a prominent inventor with an impressive portfolio of 32 patents. His work primarily focuses on advancements in electrical engineering, particularly in the design and manufacturing of rotating electric machines and stators.

Latest Patents

Two of Masafumi Sakuma’s latest patents showcase his inventive prowess. The first patent, titled "Stator Manufacturing Method and Stator," introduces a process where a skew-forming mechanism presses against a skew-forming jig to create a skew with a bent or curved shape. This innovation is crucial for enhancing the performance of stators in varying applications. The second patent, "Rotating Electric Machine," details a configuration where a stator, featuring slots for conductive wire coils, interacts with a rotor equipped with magnetic poles. This machine is designed with either a fraction slot or an integer slot configuration, ensuring uniform magnetomotive force across its phases.

Career Highlights

Masafumi has made significant contributions during his tenure at renowned companies such as Aisin Seiki Kabushiki Kaisha and Toyota Jidosha Kabushiki Kaisha. His work at these organizations not only impacted their engineering solutions but also led to developments in the electrical and automotive sectors.

Collaborations

Throughout his career, Masafumi Sakuma has collaborated with notable coworkers, including Tomohiro Fukushima and Teppei Tsuda. These partnerships have fostered an environment of innovation, leading to the successful development of advanced technologies in their respective fields.

Conclusion

Masafumi Sakuma's extensive list of patents and his work within leading automotive and engineering companies reflect his dedication to innovation in electrical engineering. His contributions continue to influence the industry, paving the way for future advancements in technology.

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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