Ibaraki, Japan

Kazuyoshi Shioiri

This inventor holds 1 USPTO granted patent and 1 EPO patent. Top assignee: Riso Kagaku Corporation. Active years: 2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuyoshi Shioiri. Retrieved from https://idiyas.com/inventor/kazuyoshi-shioiri-pc6i01bc

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 = 3(Granted Patents)


Company Filing History:


Years Active: 2010

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1 patent (USPTO):Explore Patents

Title: Innovations by Kazuyoshi Shioiri: A Pioneer in Non-Aqueous Pigment Ink

Introduction: Kazuyoshi Shioiri, an esteemed inventor based in Ibaraki-ken, Japan, has made notable contributions to the field of ink technology. With a unique patent to his name, Shioiri continues to push the boundaries of innovation in collaboration with his colleagues at Riso Kagaku Corporation.

Latest Patents: Kazuyoshi Shioiri holds a significant patent for a non-aqueous pigment ink. This innovative ink formulation includes a colorant in the form of a pigment complex combined with a non-aqueous solvent. A key feature of this patent is that the colorant comprises a pigment, a dispersant, and a polymer compound. The polymer compound is engineered to contain multiple primary and/or secondary amino groups within each molecule, ensuring enhanced interaction. Additionally, the dispersant is designed with two or more reactive functional groups in each molecule that exhibit reactivity with the amino groups of the polymer compound, paving the way for improved performance in ink applications.

Career Highlights: Throughout his career, Kazuyoshi Shioiri has exemplified dedication to the development of high-quality ink solutions. His work at Riso Kagaku Corporation highlights his commitment to innovation and excellence in product development. The success of his patent reflects his expertise and understanding of chemical interactions within ink formulations.

Collaborations: Shioiri's efforts are further enhanced through collaboration with his coworker, Shunsuke Uozumi. Together, they contribute to advancing the technology and functionality of professional ink products, showcasing the importance of teamwork in research and development.

Conclusion: Kazuyoshi Shioiri stands as a significant figure in the field of ink technology with his innovative patent for non-aqueous pigment ink. His work at Riso Kagaku Corporation continues to inspire advancements in the industry, illustrating how dedicated inventors can shape the future of product development.

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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