Toyota, Japan

Masaharu Hayashi

This inventor holds 33 USPTO granted patents, primarily in Fluid Coupling Technology. Top assignees: Aisin Seiki Kabushiki Kaisha, Toyota Jidosha Kabushiki Kaisha, Yazaki Corporation. Active years: 1976-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaharu Hayashi. Retrieved from https://idiyas.com/inventor/masaharu-hayashi

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 = 2.2

ph-index = 12

Forward Citations = 319(Granted Patents)


Location History:

  • Toyota, JA (1976)
  • Aichi, JP (1984)
  • Kariya, JP (1987)
  • Wakabayashihigashimachi, JP (1995)
  • Aichi-ken, JP (2002)
  • Toyota, JP (1980 - 2007)

Company Filing History:


Years Active: 1976-2007

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Areas of Expertise:
Steering Column Module
Electric Connection Box
Throttle Control
Tensioner
Viscous Fluid Coupling
Engine Cooling System
Cooling Fan
Temperature Responsive
Fan Assembly
Bimetal Coil
Flexible Blade Fan
Motor Vehicles
33 patents (USPTO):Explore Patents

Title: Innovator Spotlight: Masaharu Hayashi

Introduction

Masaharu Hayashi, based in Toyota, Japan, is a prominent inventor with an impressive portfolio of 33 patents to his name. His work has significantly influenced the automotive industry, particularly in areas such as steering mechanisms and electrical connection systems.

Latest Patents

Hayashi's latest innovations include a Steering Column Module and an Electric Connection Box. The Steering Column Module features a steering column cover body designed to house an array of components, including an electric junction block, meters, and switches. Notably, the switches incorporated range from turn and wiper switches to hazard and ignition switches, all tightly integrated for optimal functionality.

His Electric Connection Box is another remarkable invention designed for connecting multiple sub-wire harnesses. This innovation includes a power supply section with various connection plates and intermediate terminals that facilitate seamless electrical connections, enhancing reliability and efficiency in automotive wiring systems.

Career Highlights

Throughout his career, Masaharu Hayashi has worked with renowned companies such as Aisin Seiki Corporation and Toyota Motor Corporation. His experience in these esteemed organizations has honed his skills and allowed him to contribute significantly to the development of cutting-edge automotive technologies.

Collaborations

Hayashi has had fruitful collaborations with notable colleagues, including Masato Itakura and Kenji Hattori. Together, they have pushed the boundaries of automotive innovation, creating products that enhance vehicle safety and performance.

Conclusion

Masaharu Hayashi stands out as a leading inventor within the automotive sector, with his numerous patents reflecting his dedication to innovation. His latest inventions not only demonstrate his technical prowess but also contribute to advancements that impact everyday driving experiences. As the automotive industry continues to evolve, Hayashi’s work remains instrumental in shaping the future of vehicle 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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