Suwa, Japan

Junko Shimizu

This inventor holds 3 USPTO granted patents. Top assignee: Seiko Epson Corporation. Active years: 1994-1997.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Junko Shimizu. Retrieved from https://idiyas.com/inventor/junko-shimizu

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 = 4.5

ph-index = 3

Forward Citations = 138(Granted Patents)


Company Filing History:


Years Active: 1994-1997

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3 patents (USPTO):Explore Patents

Title: Celebrating the Innovations of Junko Shimizu: A Pioneer in Ink Technology

Introduction: Junko Shimizu, an esteemed inventor based in Suwa, Japan, has made significant contributions to the field of ink technology. With a total of three patents to her name, Shimizu is recognized for her innovative approaches to ink compositions, particularly for inkjet printing. Her work exemplifies advancements that enhance the quality and efficiency of printing processes.

Latest Patents: Among Shimizu's latest inventions is a water-based recording ink designed specifically for inkjet printing. This novel ink composition includes a pigment, along with a component from a group of saccharides, their derivatives, and polyols that contain five or more hydroxyl groups, combined with a resin emulsion. The innovative formulation of this pigment-type ink ensures excellent preservability, prevents nozzle obstruction, and promotes uniform image production.

Career Highlights: Junko Shimizu is currently employed at Seiko Epson Corporation, a company renowned for its pioneering work in printing technology. Her role allows her to contribute to important advancements in the industry, solidifying her reputation as a leading inventor in the field.

Collaborations: Throughout her career, Shimizu has collaborated with talented individuals such as Yukari Sano and Hiroko Hayashi, who have been instrumental in her research endeavors. These collaborations have fostered an environment of creativity and innovation, leading to the development of cutting-edge ink technologies.

Conclusion: Junko Shimizu's dedication to inventing and her recent advancements in ink technology underscore the importance of innovation in enhancing everyday printing solutions. Her contributions not only benefit the industry but also inspire future inventors to pursue their creative ideas and transform them into tangible inventions.

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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