Tokyo, Japan

Shirou Yamaguchi

This inventor holds 9 USPTO granted patents and 2 published patent applications and 5 EPO patents. Top assignees: Yamabiko Corporation, Kioritz Corporation. Active years: 2007-2024.

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

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

USPTO Granted Patents = 9 

% Patents Active = 55.6

 

Average Co-Inventor Count = 2.6

ph-index = 3

Forward Citations = 22(Granted Patents)


Location History:

  • Ome, JP (2007)
  • Tokyo, JP (2007 - 2019)

Company Filing History:


Years Active: 2007-2024

Loading Chart...
Loading Chart...
9 patents (USPTO):Explore Patents

Title: Innovations of Shirou Yamaguchi

Introduction

Shirou Yamaguchi is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of engineering, particularly in the development of advanced engine technologies. With a total of nine patents to his name, Yamaguchi has demonstrated a commitment to innovation and excellence in his work.

Latest Patents

One of Yamaguchi's latest patents is for a two-stroke engine. This innovative engine design includes a separating wall that confines the tip end portion of an ignition device. It features an ignition promoting chamber that is independent of the combustion chamber and encloses the tip end portion of the ignition device. Additionally, the design incorporates a plurality of communicating holes that provide communication between the combustion chamber and the ignition promoting chamber.

Another notable patent is for a portable working machine that includes an engine with a carburetor and a fuel supply control method. This invention optimizes fuel supply during engine operation by utilizing a throttle opening degree detection sensor and a control unit. The control unit variably controls a valve body based on a map that includes sections divided by throttle opening degrees. This ensures that the engine operates at its highest rotation speed in each section.

Career Highlights

Throughout his career, Shirou Yamaguchi has worked with several notable companies, including Yamabiko Corporation and Kioritz Corporation. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects.

Collaborations

Yamaguchi has collaborated with talented individuals such as Takahiro Yamazaki and Takamasa Otsuji. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Shirou Yamaguchi's contributions to engine technology and his impressive portfolio of patents highlight his role as a leading inventor in Japan. His innovative designs continue to influence the engineering landscape, showcasing the importance of creativity and collaboration in the field.

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…