Tokyo, Japan

Eiji Koutani

This inventor holds 3 USPTO granted patents and 1 published patent application. Top assignees: Fukuvi Chemical Industry Co., Ltd., Sumitomo Rubber Industries Limited, Other. Active years: 2000-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Eiji Koutani. Retrieved from https://idiyas.com/inventor/eiji-koutani

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

Calculating rank
USPTO Granted Patents = 3 

% Patents Active = 66.7

Average Co-Inventor Count = 4.0

ph-index = 1

Forward Citations = 4(Granted Patents)


Company Filing History:


Years Active: 2000-2025

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3 patents (USPTO):Explore Patents

Title: Inventor Spotlight: Eiji Koutani

Introduction

Eiji Koutani, an innovative inventor based in Tokyo, Japan, has made significant contributions to the field of engineering through his inventions. With a total of two patents to his name, Koutani continues to push the boundaries of technology and design.

Latest Patents

Koutani's most recent patents showcase his expertise in vibrational technology and construction materials. One of his key inventions is a vibration damper designed to enhance stability in framework structures. The vibration damper consists of a first plate anchored to one framework member, and a second plate attached to another framework member, with elastic material filling the interstices between them. This innovative design includes strategically formed clearances to accommodate joist insertion, ensuring efficiency and effectiveness in its application.

Another notable patent involves a mortar substrate sheet, which reflects Koutani's commitment to advancing materials used in construction and engineering sectors. The specifications and utility of this substrate demonstrate his keen understanding of both material science and practical application in building solutions.

Career Highlights

Throughout his career, Koutani has worked with renowned companies, such as Fukuvi Chemical Industry Co., Ltd., where his contributions to product development and innovation have been invaluable. His career is marked by a dedication to enhancing engineering practices through his inventive spirit.

Collaborations

Koutani has collaborated with notable coworkers like Yutaka Shimizu and Yoshimi Ueda. Together, they have contributed to various projects and innovations, blending their talents to achieve remarkable outcomes in their respective fields.

Conclusion

Eiji Koutani stands as a testament to the power of innovation in engineering. His patents not only illustrate his technical acumen but also highlight the importance of collaboration in driving progress. With his ongoing efforts, Koutani is set to continue impacting the industry positively, inspiring future inventors and engineers.

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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