Iwakuni, Japan

Koji Tokunaga

This inventor holds 1 USPTO granted patent and 1 EPO patent. Top assignee: Toyobo Co., Ltd.. Active years: 2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Koji Tokunaga. Retrieved from https://idiyas.com/inventor/koji-tokunaga-6etr95n9

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 = 5.0

ph-index = 1

Forward Citations = 3(Granted Patents)


Company Filing History:


Years Active: 2018

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1 patent (USPTO):Explore Patents

Title: Koji Tokunaga: Innovator in Hollow-Fiber Membrane Technology

Introduction

Koji Tokunaga is a notable inventor based in Iwakuni, Japan. He has made significant contributions to the field of membrane technology, particularly in forward osmosis applications. His innovative work has led to the development of a unique hollow-fiber membrane element that enhances the efficiency of water purification processes.

Latest Patents

Koji Tokunaga holds a patent for a "Hollow-fiber membrane element and membrane module for forward osmosis." This invention features an open-ended hollow-fiber membrane element designed for forward osmosis. The hollow-fiber membrane body is wound around a porous distribution pipe in a helical manner, with specific configurations that optimize its performance. The patent details the number of winds per element length, ensuring effective water filtration.

Career Highlights

Throughout his career, Tokunaga has been associated with Toyobo Co., Ltd., a company known for its advancements in materials and technology. His work has not only contributed to the company's portfolio but has also positioned him as a key figure in the innovation of membrane technologies.

Collaborations

Koji Tokunaga has collaborated with notable colleagues, including Katsushige Marui and Yasuki Terashima. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and advancements in their respective fields.

Conclusion

Koji Tokunaga's contributions to hollow-fiber membrane technology exemplify the impact of innovative thinking in addressing modern challenges. His patent and work at Toyobo Co., Ltd. highlight the importance of research and collaboration in driving technological advancements.

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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