Tokyo, Japan

Koji Kutsuwa

This inventor holds 8 USPTO granted patents and 2 published patent applications, plus 1 CIPO patent and 3 EPO patents. Top assignees: Nippon Paper Industries Co., Ltd., Kao Corporation, Harima Chemicals, Incorporated. Active years: 2009-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Koji Kutsuwa. Retrieved from https://idiyas.com/inventor/koji-kutsuwa

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

Calculating rank
USPTO Granted Patents = 8 

% Patents Active = 75.0


 

Average Co-Inventor Count = 4.4

ph-index = 3

Forward Citations = 36(Granted Patents)


Company Filing History:


Years Active: 2009-2025

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8 patents (USPTO):Explore Patents

Title: Koji Kutsuwa: Innovator in Coated Paper and Inkjet Recording Mediums

Introduction

Koji Kutsuwa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the fields of coated paper and inkjet recording mediums. With a total of 8 patents to his name, Kutsuwa's work reflects a commitment to innovation and quality in material science.

Latest Patents

Kutsuwa's latest patents include advancements in coated paper and inkjet recording mediums. One of his notable inventions is a coated paper that features a coating layer containing poly(3-hydroxybutyrate-co-3-hydroxyhexanoate). This invention aims to minimize coating defects, providing a high-quality product. The coated paper includes a solid content weight ratio of poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) to adhesive ranging from 99.9/0.1 to 60.0/40.0.

Another significant patent is for an inkjet recording medium. This medium comprises an ink-receiving layer that contains an inorganic pigment, a binder, and an inkjet ink-fixing agent. The ink-receiving layer also includes organic spherical particles and a specific formulation of polyvinyl alcohol, ensuring optimal performance in inkjet applications.

Career Highlights

Throughout his career, Kutsuwa has worked with notable companies such as Nippon Paper Industries Co., Ltd. and Kao Corporation. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects.

Collaborations

Kutsuwa has collaborated with esteemed colleagues, including Yasufumi Ueda and Takayuki Suzuki. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Koji Kutsuwa's contributions to the fields of coated paper and inkjet recording mediums highlight his innovative spirit and dedication to advancing material science. His patents reflect a deep understanding of the complexities involved in creating high-quality products.

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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