Hyogo, Japan

Hirofumi Yamaguchi

This inventor holds 1 USPTO granted patent and 1 EPO patent. Top assignee: Sumitomo Seika Chemicals Co., Ltd.. Active years: 2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirofumi Yamaguchi. Retrieved from https://idiyas.com/inventor/hirofumi-yamaguchi-34tlqw32

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

Calculating rank


Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 2012

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1 patent (USPTO):Explore Patents

Title: Hirofumi Yamaguchi: Innovator in Photoacid Generators

Introduction

Hirofumi Yamaguchi is a notable inventor based in Hyogo, Japan. He has made significant contributions to the field of photochemistry, particularly through his innovative work on photoacid generators.

Latest Patents

Yamaguchi holds a patent for a photoacid generator and photoreactive composition. This invention demonstrates high sensitivity in the near ultraviolet range of about 300 to 400 nm. It remarkably increases the reaction rate of a photoreactive composition, allowing for reactions to be initiated even by near ultraviolet light within a short time. The patent includes specific chemical formulas for a dithienyl sulfide disulfonium salt, a dithienyl sulfide sulfonium salt, and a phenylthiothiophene sulfonium salt.

Career Highlights

Hirofumi Yamaguchi is associated with Sumitomo Seika Chemicals Co., Ltd., where he has been able to apply his expertise in photochemistry. His work has contributed to advancements in materials that are sensitive to ultraviolet light, which are essential in various applications.

Collaborations

Yamaguchi has collaborated with notable coworkers, including Katsumasa Yamamoto and Michio Suzuki. Their combined efforts have furthered research and development in the field of photoreactive materials.

Conclusion

Hirofumi Yamaguchi's contributions to the field of photochemistry, particularly through his patented innovations, highlight his role as a significant inventor. His work continues to influence advancements in photoreactive compositions and materials.

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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