Tokyo, Japan

Taro Yamamoto

This inventor holds 3 USPTO granted patents and 2 EPO patents. Top assignees: Asahi Kasei Fibers Corporation, Asahi Kasei Kabushiki Kaisha. Active years: 2009-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Taro Yamamoto. Retrieved from https://idiyas.com/inventor/taro-yamamoto-6m90pqec

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 = 2.0

ph-index = 1


Location History:

  • Moriyama, JP (2009)
  • Tokyo, JP (2014 - 2023)

Company Filing History:


Years Active: 2009-2023

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3 patents (USPTO):Explore Patents

Title: Taro Yamamoto: Innovator in Polyurethane Elastic Fibers

Introduction

Taro Yamamoto, a prolific inventor based in Tokyo, Japan, is renowned for his contributions to the field of polyurethane elastic fibers. With a total of three patents to his name, Yamamoto has developed innovative solutions that enhance the performance and utility of these materials, particularly in industrial applications.

Latest Patents

Yamamoto's latest patents include a groundbreaking polyurethane elastic fiber, a yarn package of the same, and a product incorporating these fibers. His polyurethane elastic fiber is uniquely designed to prevent the bleeding of surface treating agents even after prolonged storage, thus mitigating contamination of packing materials. This innovation ensures stable friction performance regardless of storage duration, making the fibers ideal for applications that require stable gathered members with minimal core slip-back. The multifilament cross-section of this fiber features a void part defined by the contact between individual filaments, with a cross-sectional void part area ratio ranging from 15% to 60%. This specific design allows for optimal performance in various applications.

Another significant patent by Yamamoto involves a polyurethane urea elastic fiber that contains 5-40% by weight of a polyurethane compound. This fiber is characterized by a compression deformation starting temperature determined by thermomechanical analysis (TMA) ranging from 150°C to 180°C, alongside a minimum thermal cutting time of 30 seconds at 180°C.

Career Highlights

Throughout his career, Taro Yamamoto has worked with notable companies, including Asahi Kasei Fibers Corporation and Asahi Kasei Kabushiki Kaisha. His innovative approach and expertise in material science have majorly impacted the textile industry, pushing the boundaries of what polymer fibers can achieve.

Collaborations

Yamamoto's journey in innovation has been enriched by collaboration with talented coworkers such as Junichi Kojima and Masanori Doi. Together, they have contributed significantly to advancements in elastic fiber technology and materials research.

Conclusion

Taro Yamamoto's dedication to research and innovation continues to shine through his patented inventions in polyurethane elastic fibers. By enhancing the performance of these materials, he has paved the way for advancements in their application, ultimately benefiting various industries and setting a benchmark for future innovations in textile technology.

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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