Saitama, Japan

Seiji Yamaguchi

This inventor holds 22 USPTO granted patents, plus 2 CIPO patents, primarily in Motorcycle Technology. Top assignees: Honda Giken Kogyo Kabushiki Kaisha, Honda Motor Co., Ltd., Jidosha Kiki Co., Ltd.. Active years: 1987-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Seiji Yamaguchi. Retrieved from https://idiyas.com/inventor/seiji-yamaguchi-rjceuvtp

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

Calculating rank

% Patents Active = 63.6


Average Co-Inventor Count = 2.6

ph-index = 8

Forward Citations = 168(Granted Patents)


Location History:

  • Higashimatsuyama, JP (1993)
  • Tokyo, JP (1993)
  • Asaka, JP (1999)
  • Wako, JP (2002 - 2008)
  • Saitama, JP (1987 - 2010)
  • Yamagata, JP (2013)

Company Filing History:


Years Active: 1987-2013

Loading Chart...
Loading Chart...
Areas of Expertise:
Braking Force Input
Instrument Panel
Tail Lamp Structure
Front Fork Structure
Head Light
Air Cleaner Case
Vehicular Light
Speedometer Mounting
Rear Fender
License Plate Light
Hydraulic Pressure Booster
Power Steering
22 patents (USPTO):Explore Patents

Title: Seiji Yamaguchi: A Pioneer of Innovative Patents

Introduction

Seiji Yamaguchi, based in Saitama, Japan, is a prolific inventor recognized for his contributions to multiple fields, holding an impressive tally of 22 patents. His work demonstrates a blend of creativity and technical expertise, particularly in the areas of leather treatment and braking systems.

Latest Patents

Among Seiji Yamaguchi's latest patents is a revolutionary method of producing leather characterized by its flexibility, unique elasticity, and softness. This process involves a thorough pre-treatment before tanning, utilizing glutaraldehyde as a tanning agent and incorporating a synthetic tanning agent comprised of various compounds, including aromatic sulfonic acids. The resulting leather not only maintains remarkable restorability but also achieves specific stiffness and softness metrics.

Another significant patent focuses on a braking force input system designed to minimize moment generation at the proximal and supporting portions of a brake pedal. This innovative system ensures that the brake pedal can be positioned outside the vehicle body without adding unnecessary weight. It features a supporting shaft that integrates with the brake pedal, allowing for seamless operation and enhanced performance.

Career Highlights

Seiji Yamaguchi has been associated with renowned companies such as Honda Giken Kogyo Kabushiki Kaisha and Honda Motor Co., Ltd., where he has made notable advancements in automotive technologies. His work in these companies has significantly contributed to their reputation for innovation and quality.

Collaborations

Throughout his career, Seiji has collaborated with esteemed colleagues such as Masamoto Ito and Yoshihiro Takanashi. Together, they have worked on various projects that pushed the boundaries of technology and design in their respective fields.

Conclusion

Seiji Yamaguchi stands as a testament to the spirit of innovation, with a remarkable portfolio of patents that reflect his ingenuity and commitment to advancing technology. His contributions to leather production and braking systems not only highlight his individual talent but also the collaborative efforts within his industry, showcasing the importance of teamwork in achieving groundbreaking results.

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]
Loading…