Tokyo, Japan

Kyu Yamaguchi

This inventor holds 1 USPTO granted patent and 1 EPO patent. Top assignee: The Nisshin Oillio Group, Ltd.. Active years: 2011.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kyu Yamaguchi. Retrieved from https://idiyas.com/inventor/kyu-yamaguchi

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



Average Co-Inventor Count = 2.0

ph-index = 1

Forward Citations = 6(Granted Patents)


Company Filing History:


Years Active: 2011

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1 patent (USPTO):Explore Patents

Title: Kyu Yamaguchi and Cosmetic Ingredient Innovation.

Introduction

Kyu Yamaguchi is an inventor based in Tokyo, Japan, associated with The Nisshin OilliO Group, Ltd. His patent work concerns a trehalose fatty acid ester composition designed to improve pigment dispersion in cosmetics.

Latest Patents

Yamaguchi is credited with 1 patent: “Trehalose Fatty Acid Ester Composition.” The invention describes a pigment dispersant intended to help cosmetics incorporate larger amounts of pigment while maintaining desirable usability, lasting makeup performance, odor, and stability over time. It specifies trehalose esterified with a fatty acid containing 8 to 22 carbon atoms, a hydroxyl value of 20 to 500, and a combined diester, triester, tetraester, and pentaester content of 10% to 100% by area. The composition may be included in cosmetic products.

Career Highlights

Yamaguchi’s listed patent reflects work on cosmetic formulations and the performance of pigment dispersants. His affiliation with The Nisshin OilliO Group, Ltd. connects this invention to the company’s research and development activities.

Collaborations

Taro Ehara is identified as Yamaguchi’s coworker. The available information does not specify whether Ehara collaborated on the patent.

Conclusion

Kyu Yamaguchi’s patent focuses on a trehalose-based ingredient intended to improve pigment dispersion and other practical qualities in cosmetics.

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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