Tokyo, Japan

Koichi Sagawa

This inventor holds 5 USPTO granted patents and 1 published patent application and 1 EPO patent. Top assignee: Toppan Inc.. Active years: 2025-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Koichi Sagawa. Retrieved from https://idiyas.com/inventor/koichi-sagawa-q1oakrel

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

USPTO Granted Patents = 5 

% Patents Active = 100.0

 

Average Co-Inventor Count = 1.5

ph-index = 1


Company Filing History:


Years Active: 2025-2026

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5 patents (USPTO):Explore Patents

Title: Koichi Sagawa: Innovator in Decorative Materials

Introduction

Koichi Sagawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of decorative materials, holding a total of 5 patents. His innovative work focuses on enhancing the properties of decorative sheets and members, particularly in terms of antiviral capabilities and processability.

Latest Patents

Sagawa's latest patents include a decorative sheet and a decorative member that exhibit excellent antiviral properties. The decorative sheet features a colored layer, a pattern layer, and a surface protective layer. This surface protective layer contains an antiviral agent, with a specific concentration range, and is designed to be compatible with various curing resins. Another notable patent involves a decorative sheet that prevents discoloration caused by chlorine and silver interactions. This invention includes a polyvinyl chloride resin layer and a surface protective layer that is free from chlorine-containing components, ensuring durability and aesthetic appeal.

Career Highlights

Throughout his career, Koichi Sagawa has worked with notable companies such as Toppan Inc. and Toppan Printing Co., Ltd. His experience in these organizations has allowed him to refine his expertise in the development of advanced decorative materials.

Collaborations

Sagawa has collaborated with talented individuals in his field, including Takashi Tominaga and Takahi Orihara. These partnerships have contributed to the success of his innovative projects and patents.

Conclusion

Koichi Sagawa is a distinguished inventor whose work in decorative materials has led to significant advancements in the industry. His patents reflect a commitment to innovation and quality, making him a key figure in the field.

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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