Tokyo, Japan

Keiko Motoyama

This inventor holds 1 USPTO granted patent and 1 published patent application and 1 EPO patent. Top assignee: Asahi Kasei Kabushiki Kaisha. Active years: 2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiko Motoyama. Retrieved from https://idiyas.com/inventor/keiko-motoyama

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 = 2.0

ph-index = 1


Company Filing History:


Years Active: 2022

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1 patent (USPTO):Explore Patents

Title: Keiko Motoyama: Innovator in Carbon Black Master Batch Technology

Introduction

Keiko Motoyama is a prominent inventor based in Tokyo, Japan. She has made significant contributions to the field of thermoplastic resin compositions, particularly through her innovative patent related to carbon black master batch pellets. Her work has implications for various industries that utilize thermoplastic materials.

Latest Patents

Keiko Motoyama holds a patent for a carbon black master batch pellet designed for black coloring. This invention comprises a high concentration of carbon black, which ensures excellent dispersibility and stable black coloring concentration. The pellet consists of 35 to 55 mass % of carbon black, 65 to 45 mass % of a thermoplastic resin, and up to 10 mass % of a dispersant assistant. The dimensions of the pellet are carefully specified, with a diameter ranging from 2 to 5 mm and a diameter-to-length ratio of 3.0 to 1.5.

Career Highlights

Keiko Motoyama is associated with Asahi Kasei Kabushiki Kaisha, a leading company in the chemical industry. Her role at the company has allowed her to focus on developing innovative materials that enhance product performance and sustainability.

Collaborations

Keiko collaborates with Akira Miyamoto, a fellow innovator in her field. Together, they work on advancing technologies that improve the efficiency and effectiveness of thermoplastic resin applications.

Conclusion

Keiko Motoyama's contributions to the field of thermoplastic resin compositions highlight her innovative spirit and dedication to advancing material science. Her patent for carbon black master batch pellets exemplifies her commitment to creating high-quality, efficient 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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