Yoshimi, Japan

Shigeji Ichikawa

This inventor holds 2 USPTO granted patents and 1 published patent application. Top assignees: Ube Industries, Inc., Kanesi Corporation, Kansei Corporation. Active years: 1994-1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeji Ichikawa. Retrieved from https://idiyas.com/inventor/shigeji-ichikawa

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

Calculating rank
USPTO Granted Patents = 2 

% Patents Active = 100.0

Average Co-Inventor Count = 5.5

ph-index = 2

Forward Citations = 21(Granted Patents)


Location History:

  • Yoshimi, JP (1994)
  • Omiya, JP (1996)

Company Filing History:


Years Active: 1994-1996

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2 patents (USPTO):Explore Patents

Title: Shigeji Ichikawa: Innovator in Polymer Technology

Introduction

Shigeji Ichikawa is a notable inventor based in Yoshimi, Japan. He has made significant contributions to the field of polymer technology, particularly in the development of reinforced polypropylene resin compositions. With a total of 2 patents, Ichikawa's work has had a considerable impact on material science.

Latest Patents

Ichikawa's latest patents include a reinforced polypropylene resin composition that consists of three main components. The first component is a crystalline ethylene-propylene block copolymer, which is crucial for enhancing the material's properties. The second component is an elastomer selected from hydrogenated block copolymer rubbers and ethylene-α-olefin copolymer rubbers. The third component is talc, which contributes to the overall performance of the resin composition. Another patent focuses on a reinforced polypropylene resin composition that includes glass fiber and mica, showcasing Ichikawa's innovative approach to improving material strength and durability.

Career Highlights

Throughout his career, Ichikawa has worked with prominent companies such as Ube Industries, Inc. and Kanesi Corporation. His experience in these organizations has allowed him to refine his expertise in polymer technology and contribute to various innovative projects.

Collaborations

Ichikawa has collaborated with notable colleagues, including Katsunori Arai and Hideyo Morita. These partnerships have fostered a creative environment that has led to advancements in their respective fields.

Conclusion

Shigeji Ichikawa's contributions to polymer technology through his patents and collaborations highlight his role as an influential inventor. His work continues to inspire advancements in material science and engineering.

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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