Minoo, Japan

Ryuji Kanou

This inventor holds 1 USPTO granted patent. Top assignee: Sumitomo Chemical Company, Limited. Active years: 1976.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ryuji Kanou. Retrieved from https://idiyas.com/inventor/ryuji-kanou

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


% Patents Active = 100.0

Average Co-Inventor Count = 4.0

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 1976

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1 patent (USPTO):Explore Patents

Title: Ryuji Kanou and His Anthraquinone Disperse Dye Patent.

Introduction

Ryuji Kanou is an inventor associated with Minoo, Japan, and Sumitomo Chemical Company, Limited. His recorded patent concerns anthraquinone disperse dyes designed for coloring synthetic fibers.

Latest Patents

Kanou’s listed patent, “Anthraquinone Disperse Dyes,” describes a class of disperse dyes defined by chemical substituents, including amino or hydroxyl groups and oxygen, sulfur, or direct linkages. The patent states that these dyes are suitable for synthetic fibers such as polyester and can provide high color value and good fastness properties. Kanou is credited with 1 patent in the information provided.

Career Highlights

Kanou’s listed invention reflects work in chemical innovation and textile dyeing. His patent is associated with Sumitomo Chemical Company, Limited, a company active in chemical research and development.

Collaborations

Taizo Ohshima and Eiji Yamada are identified as Kanou’s coworkers. The available information does not specify their roles in the patent or the extent of their collaboration.

Conclusion

Ryuji Kanou’s recorded patent on anthraquinone disperse dyes highlights an invention aimed at improving the coloration and fastness of synthetic fibers, particularly polyester.

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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