Nagoya, Japan

Kotaro Fujioka

This inventor holds 5 USPTO granted patents and 3 published patent applications. Top assignee: Toray Industries, Inc.. Active years: 1977-1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kotaro Fujioka. Retrieved from https://idiyas.com/inventor/kotaro-fujioka

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

USPTO Granted Patents = 5 

% Patents Active = 100.0

Average Co-Inventor Count = 3.3

ph-index = 4

Forward Citations = 72(Granted Patents)


Location History:

  • Nagoya, JA (1977)
  • Nagoya, JP (1982 - 1990)

Company Filing History:


Years Active: 1977-1990

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5 patents (USPTO):Explore Patents

Title: Kotaro Fujioka: Innovator in Thermoplastic Polymer Technology

Introduction

Kotaro Fujioka is a prominent inventor based in Nagoya, Japan. He has made significant contributions to the field of thermoplastic polymer technology, holding a total of 5 patents. His innovative work focuses on the development of advanced methods for melt-spinning thermoplastic polymer fibers.

Latest Patents

Among his latest patents, Fujioka has developed an "Apparatus for melt-spinning thermoplastic polymer fibers." This invention involves spinning a thermoplastic polymer yarn into a spinning tube that is charged with a pressurized gas of more than 1 kg/cm² G. The yarn is then withdrawn through a yarn exit equipped with a unique sealing device that effectively prevents gas leakage while allowing the yarn to exit the spinning tube. The resulting yarn exhibits high molecular orientation due to improved quenching effects and increased resistance against yarn travel caused by the charged gas. Another notable patent is the "Method for melt-spinning thermoplastic polymer fibers," which shares similar principles and benefits as the apparatus.

Career Highlights

Kotaro Fujioka is currently employed at Toray Industries, Inc., a leading company in the field of advanced materials. His work at Toray has allowed him to push the boundaries of polymer technology and contribute to the development of innovative solutions in the industry.

Collaborations

Fujioka has collaborated with notable coworkers, including Isoo Saito and Katsumi Hasegawa. Their combined expertise has fostered a productive environment for innovation and development in thermoplastic polymer applications.

Conclusion

Kotaro Fujioka's contributions to thermoplastic polymer technology through his patents and work at Toray Industries, Inc. highlight his role as a key innovator in the field. His advancements in melt-spinning methods continue to influence the industry and pave the way for future innovations.

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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