Iwakuni, Japan

Takamasa Tsumoto

This inventor holds 2 USPTO granted patents and 1 EPO patent. Top assignee: Mitsui Chemicals, Inc.. Active years: 2004-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takamasa Tsumoto. Retrieved from https://idiyas.com/inventor/takamasa-tsumoto

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


% Patents Active = 100.0


Average Co-Inventor Count = 2.7

ph-index = 1

Forward Citations = 3(Granted Patents)


Location History:

  • Kuga-gun, JP (2004)
  • Iwakuni, JP (2017)

Company Filing History:


Years Active: 2004-2017

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2 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Takamasa Tsumoto

Introduction

Takamasa Tsumoto is a notable inventor based in Iwakuni, Japan. He has made significant contributions to the field of materials science, particularly in the development of pellicles used in various applications. With a total of 2 patents to his name, Tsumoto's work reflects a commitment to innovation and excellence.

Latest Patents

Tsumoto's latest patents focus on advanced pellicle designs. The first patent describes a pellicle that features a pressure-sensitive adhesive layer on the inner surface of the pellicle frame. This layer is designed to effectively adhere suspended substances, including dust, while also exhibiting excellent resistance to short-wavelength light. The pellicle comprises a frame, a film stretched over the frame, and a copolymer-based adhesive layer that constitutes 60 mass % or more of the adhesive layer.

The second patent presents a pellicle that includes a film and a frame supporting it, along with an adhesive resin layer on the opposite side of the frame. This innovative design allows the pellicle to be mounted on a mask and removed without causing damage, maintaining the flatness of the mask regardless of its orientation.

Career Highlights

Takamasa Tsumoto is currently employed at Mitsui Chemicals, Inc., where he continues to push the boundaries of material innovation. His work has garnered attention for its practical applications in various industries, showcasing his ability to blend scientific research with real-world needs.

Collaborations

Throughout his career, Tsumoto has collaborated with talented individuals such as Hiroyuki Kurata and Hiroaki Nakagawa. These partnerships have contributed to the advancement of his projects and the successful development of his patented technologies.

Conclusion

Takamasa Tsumoto's contributions to the field of materials science, particularly through his innovative pellicle designs, highlight his role as a leading inventor. His work at Mitsui Chemicals, Inc. and collaborations with esteemed colleagues further emphasize his impact on the industry.

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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