Numazu, Japan

Karumi Kakigawa

This inventor holds 1 USPTO granted patent. Top assignee: Ricoh Company, Ltd.. Active years: 1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Karumi Kakigawa. Retrieved from https://idiyas.com/inventor/karumi-kakigawa

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 = 6.0

ph-index = 1

Forward Citations = 22(Granted Patents)


Company Filing History:


Years Active: 1990

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1 patent (USPTO):Explore Patents

Title: Karumi Kakigawa: Innovator in Toner Technology

Introduction

Karumi Kakigawa is a notable inventor based in Numazu, Japan. She has made significant contributions to the field of toner technology, particularly in developing materials for electrostatic imaging. Her innovative work has led to the creation of a unique toner formulation that enhances the quality and efficiency of printing processes.

Latest Patents

Kakigawa holds a patent for a toner designed for developing latent electrostatic images. This toner comprises a colorant and a binder agent that includes polyester resin or epoxy resin, along with a styrene-methyl acrylate copolymer. This innovative formulation is aimed at improving the performance of electrostatic imaging systems.

Career Highlights

Karumi Kakigawa is associated with Ricoh Company, Ltd., a leading organization in imaging and electronics. Her work at Ricoh has been instrumental in advancing toner technology, contributing to the company's reputation for high-quality printing solutions. With 1 patent to her name, she exemplifies the spirit of innovation within the company.

Collaborations

Throughout her career, Kakigawa has collaborated with esteemed colleagues, including Mitsuo Aoki and Fumihiro Sasaki. These partnerships have fostered a creative environment that encourages the development of cutting-edge technologies in the field of imaging.

Conclusion

Karumi Kakigawa's contributions to toner technology reflect her dedication to innovation and excellence. Her work continues to influence the industry, showcasing the importance of research and development in creating advanced imaging solutions.

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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