Aichi, Japan

Shoji Ichikawa

This inventor holds 1 USPTO granted patent. Top assignee: Other. Active years: 2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shoji Ichikawa. Retrieved from https://idiyas.com/inventor/shoji-ichikawa-2oh7nshy

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 5.0

ph-index = 1

Forward Citations = 16(Granted Patents)


Company Filing History:

goldMedal1 out of 834,659 
Other
 patents

Years Active: 2002

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1 patent (USPTO):Explore Patents

Title: The Innovative Mind of Shoji Ichikawa

Introduction

Shoji Ichikawa is a notable inventor based in Aichi-ken, Japan. He has made significant contributions to the field of engineering, particularly in the development of exhaust passage control valves. His innovative designs have the potential to enhance engine efficiency and performance.

Latest Patents

Ichikawa holds a patent for an exhaust passage control valve. This valve features a spiral-shaped valve element mounted on a valve seat portion of a housing, allowing exhaust gases from an engine to pass through. The valve element is urged by a valve spring that is designed to keep a low spring constant without enlarging the spring itself. This unique design enables the valve to open at a stretch when the exhaust-gas pressure reaches a predetermined value. The use of a helical torsion spring with a coiled cylindrical body portion further enhances the valve's functionality.

Career Highlights

Throughout his career, Shoji Ichikawa has demonstrated a commitment to innovation and engineering excellence. His work on the exhaust passage control valve exemplifies his ability to solve complex engineering challenges. With a total of 1 patent, Ichikawa has established himself as a valuable contributor to the field.

Collaborations

Ichikawa has worked alongside talented colleagues, including Yoshihiko Eguchi and Kazuhiko Tsuda. Their collaborative efforts have likely contributed to the success of his inventions and the advancement of technology in their field.

Conclusion

Shoji Ichikawa's inventive spirit and dedication to engineering have led to significant advancements in exhaust control technology. His contributions continue to influence the industry and inspire future innovations.

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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