Tokyo, Japan

Masamitsu Nagahama

This inventor holds 1 USPTO granted patent and 1 published patent application. Top assignee: Toppan Inc.. Active years: 2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masamitsu Nagahama. Retrieved from https://idiyas.com/inventor/masamitsu-nagahama-dks9dnwx

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

Calculating rank
USPTO Granted Patents = 1 

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 1


Company Filing History:


Years Active: 2025

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1 patent (USPTO):Explore Patents

Title: Masamitsu Nagahama: Innovator in Decorative Sheet Technology

Introduction

Masamitsu Nagahama is a prominent inventor based in Tokyo, Japan. He is known for his innovative contributions to the field of decorative sheet technology. With a focus on enhancing the aesthetic and functional properties of decorative sheets, Nagahama has made significant strides in this area.

Latest Patents

Nagahama holds a patent for a decorative sheet that features a unique design. This decorative sheet includes at least a topcoat layer facing a substrate layer in a first direction. The front surface of the topcoat layer has a wavy roughness profile measured with specific cutoff wavelengths according to JIS B0601:2001. The design aims to achieve an arithmetic mean deviation Ra of 10 μm or less, ensuring high-quality surface characteristics.

Career Highlights

Masamitsu Nagahama is associated with Toppan Inc., a leading company in the printing and decorative materials industry. His work at Toppan has allowed him to explore and develop advanced materials that meet the evolving needs of consumers and industries alike. His innovative approach has positioned him as a key figure in the development of decorative sheets.

Collaborations

Nagahama has collaborated with notable colleagues, including Mami Nagashima and Masatoshi Takahashi. These collaborations have fostered a creative environment that encourages the exchange of ideas and the development of cutting-edge technologies.

Conclusion

Masamitsu Nagahama's contributions to decorative sheet technology exemplify the spirit of innovation. His patent and work at Toppan Inc. highlight his commitment to advancing material design and functionality. Through his efforts, he continues to influence the industry and inspire 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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