Aki-gun, Japan

Shigeharu Yokoyama

This inventor holds 4 USPTO granted patents. Top assignees: Mazda Motor Corporation, U-Shin Ltd., Nifco Inc.. Active years: 1990-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeharu Yokoyama. Retrieved from https://idiyas.com/inventor/shigeharu-yokoyama

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

Calculating rank

% Patents Active = 75.0

Average Co-Inventor Count = 3.2

ph-index = 3

Forward Citations = 38(Granted Patents)


Location History:

  • Aki, JP (1990)
  • Hiroshima-ken, JP (2009)
  • Hiroshima, JP (2014)
  • Aki-gun, JP (2015)

Company Filing History:


Years Active: 1990-2015

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4 patents (USPTO):Explore Patents

Title: Shigeharu Yokoyama: Innovator in Mechanical Engineering

Introduction

Shigeharu Yokoyama is a notable inventor based in Aki-gun, Japan. He has made significant contributions to the field of mechanical engineering, holding a total of 4 patents. His innovative designs focus on enhancing functionality and efficiency in everyday devices.

Latest Patents

Yokoyama's latest patents include a door handle device and a terminal fixing device for control cables. The door handle device features a base member with handle supporting portions and a handle grip that includes an arm portion and a double torsion spring. This design allows for smooth operation and durability. The terminal fixing device for control cables incorporates a cable cap with varying diameters and a bracket that ensures secure engagement, enhancing the reliability of control cable systems.

Career Highlights

Throughout his career, Shigeharu Yokoyama has worked with prominent companies such as Mazda Motor Corporation and U-shin Ltd. His experience in these organizations has contributed to his expertise in mechanical design and innovation.

Collaborations

Yokoyama has collaborated with talented individuals in the industry, including Ikuo Nishikawa and Chikashi Kawamoto. These partnerships have fostered a creative environment that has led to the development of his patented inventions.

Conclusion

Shigeharu Yokoyama's contributions to mechanical engineering through his patents demonstrate his commitment to innovation and design excellence. His work continues to influence the industry and improve everyday products.

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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