Mie, Japan

Takahiro Kitagawa

This inventor holds 6 USPTO granted patents and 1 EPO patent. Top assignee: Tosoh Corporation. Active years: 2016-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takahiro Kitagawa. Retrieved from https://idiyas.com/inventor/takahiro-kitagawa-4jitthg1

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 = 3.6

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 2016-2026

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6 patents (USPTO):Explore Patents

Title: Innovator Spotlight: Takahiro Kitagawa

Introduction

Takahiro Kitagawa is an accomplished inventor based in Mie, Japan. With a remarkable portfolio of five patents, he has made significant contributions to the field of materials science, particularly in the development of resin compositions and optical compensation films.

Latest Patents

Among Kitagawa's notable inventions are his recent patents focusing on resin compositions and their applications in optical compensation films. His innovations include a resin composition that exhibits excellent retardation characteristics and wavelength dispersion characteristics. This composition combines from 30 to 99 wt % of a cellulose-based resin and from 1 to 70 wt % of a cinnamic acid ester copolymer. Furthermore, he has also patented a resin composition containing 30 to 99 wt % of a cellulose-based resin and from 70 to 1 wt % of a fumaric acid ester polymer. This polymer includes 30 mol % or more of a fumaric acid diester residue unit, showcasing his expertise in this advanced material.

Career Highlights

Takahiro Kitagawa's professional journey is highlighted by his role at Tosoh Corporation, where he has made a significant impact through his innovative research and development efforts. His dedication and commitment to advancing material applications have positioned him as a key figure in his industry.

Collaborations

Throughout his career, Kitagawa has collaborated with talented colleagues, including Masayasu Ito and Shinsuke Toyomasu. These partnerships have further enhanced his work, allowing for the exchange of ideas and fostering creative solutions in the field of material sciences.

Conclusion

With a solid foundation of patents and collaborative efforts, Takahiro Kitagawa continues to pave the way for advancements in resin compositions and optical compensation films. His contributions not only reflect his expertise but also promise continued innovation in the years to come.

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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