Tokyo, Japan

Kumiko Kameya

This inventor holds 1 USPTO granted patent. Top assignee: Mitsubishi Chemical Corporation. Active years: 2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kumiko Kameya. Retrieved from https://idiyas.com/inventor/kumiko-kameya

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 = 5.0

ph-index = 1


Company Filing History:


Years Active: 2020

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1 patent (USPTO):Explore Patents

Title: Kumiko Kameya – Innovator in Electrostatic Toner Technology

Introduction

Kumiko Kameya, an innovative inventor based in Tokyo, Japan, has made significant contributions to the field of toner technology. With a focus on developing electrostatic charge image developing toners, she holds one patent that exemplifies her expertise and dedication to advancing this technology.

Latest Patents

Kameya's notable patent pertains to an electrostatic charge image developing toner. This invention involves a specific method measuring the tan δ values at varying temperatures using a rheometer. In her patent, the parameters dictate that in the first measurement at 130°C, the tan δ value is designated as TP(130°C), and at 140°C, it is set as TP(140°C). The second measurement also at 140°C requires that the ratio TP(140°C)/TP(140°C) is equal to or smaller than 0.95, ensuring that TP(130°C) is equal to or greater than 2.5, thus highlighting the performance characteristics of the toner.

Career Highlights

Kumiko Kameya is a talented employee of Mitsubishi Chemical Corporation, a renowned contributor to advanced materials and chemical products. Her work here places her at the forefront of innovations, allowing her to collaborate with some of the most skilled professionals in the industry.

Collaborations

During her tenure at Mitsubishi Chemical Corporation, Kameya has had the opportunity to work alongside notable colleagues, such as Tomoko Nakagawa and Yuki Narukawa. These collaborations have fostered an environment of innovation and led to the exploration of new ideas in toner technology.

Conclusion

Kumiko Kameya represents a strong example of how dedicated researchers and inventors can drive advancements in technology. With her expertise and singular patent in electrostatic charge image developing toners, she continues to contribute significantly to the evolving field of material science, inspiring future innovations.

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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