Osaka, Japan

Kenji Iwashita

This inventor holds 9 USPTO granted patents and 1 published patent application and 9 EPO patents. Top assignees: Teijin Limited, Teijin Frontier Co., Ltd., Teijin Fibers Limited. Active years: 2004-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kenji Iwashita. Retrieved from https://idiyas.com/inventor/kenji-iwashita

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

USPTO Granted Patents = 9 

% Patents Active = 66.7

 

Average Co-Inventor Count = 2.3

ph-index = 2

Forward Citations = 13(Granted Patents)


Location History:

  • Ehime, JP (2004 - 2005)
  • Osaka, JP (2012 - 2023)

Company Filing History:


Years Active: 2004-2023

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9 patents (USPTO):Explore Patents

Title: The Innovative Mind of Kenji Iwashita

Introduction

Kenji Iwashita is a prominent inventor based in Osaka, Japan, known for his remarkable contributions to the field of protective fabrics and textiles. With a total of 9 patents to his name, Iwashita has made significant advancements in creating materials that not only meet safety standards but also offer aesthetic appeal through various color options.

Latest Patents

Among his latest innovations, Iwashita has developed a cloth and protective product designed to provide excellent protection against electric arcs. This invention features a unique woven fabric structure where the front surface includes spun yarn that contains an infrared absorber and/or electrically conductive fibers, while the back surface incorporates carbon-containing fibers. Remarkably, this cloth achieves an Arc Resistance Test ATPV value of 8.0 cal/cm² or more, demonstrating its effectiveness in safeguarding wearers.

Additionally, Iwashita has created a fabric and multilayer structured fabric aimed at addressing flame retardancy and heat insulation. This invention uses a combination of high and low thermal shrinkage rate yarns, arranged alternately, to establish a structure that responds effectively when exposed to flame or heat. This innovation not only ensures safety but also enhances comfort for users through its design.

Career Highlights

Throughout his career, Kenji Iwashita has worked with prestigious companies such as Teijin Limited and Teijin Frontier Co., Ltd. His tenure in these organizations has undoubtedly influenced his innovative approach and led to substantial contributions in technical advancements within the textile industry.

Collaborations

Iwashita has collaborated with notable colleagues including Hiroki Shimada and Hiroyuki Osaka, bringing together their skills and expertise to further propel advancements in fabric safety and functionality. Their partnerships have fostered a collaborative environment that encourages creativity and innovation.

Conclusion

Kenji Iwashita exemplifies the spirit of innovation in the textile industry, combining safety with aesthetic qualities in his inventions. With his impressive portfolio and collaborations, Iwashita continues to remain at the forefront of fabric technology, making strides that benefit both industries and consumers alike.

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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