Akashi, Japan

Seiji Iijima

This inventor holds 1 USPTO granted patent and 1 published patent application. Top assignee: Caterpillar Inc.. Active years: 2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Seiji Iijima. Retrieved from https://idiyas.com/inventor/seiji-iijima-pkl4vgyi

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

Calculating rank
USPTO Granted Patents = 1 

Average Co-Inventor Count = 1.0


Company Filing History:


Years Active: 2026

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1 patent (USPTO):Explore Patents

Title: Seiji Iijima: Inventor of an Idler Wheel with Tapered Webbing.

Introduction

Seiji Iijima is an inventor associated with Akashi, Japan. His patent work includes an idler wheel design featuring tapered webbing, and he is associated with Caterpillar Inc.

Latest Patents

Iijima’s listed patent, “Idler Wheel with Tapered Webbing,” describes an idler wheel with an annular rim and hub connected by webbing. The webbing includes radius portions that meet the rim and hub, along with tapered sections that extend toward a taper transition point. The design specifies 1 patent.

Career Highlights

The available information connects Iijima’s invention to Caterpillar Inc. The patent describes structural features of an idler wheel, including the webbing’s radii and tapered portions.

Collaborations

Iijima’s listed coworker is Brian B. Umbach. The provided information identifies their professional association but does not specify a particular joint project.

Conclusion

Seiji Iijima’s listed patent focuses on tapered webbing in an idler wheel, documenting his contribution to mechanical component design.

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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