Shizuoka, Japan

Katsumi Kuboshima

This inventor holds 1 USPTO granted patent. Top assignee: Ricoh Company, Ltd.. Active years: 1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katsumi Kuboshima. Retrieved from https://idiyas.com/inventor/katsumi-kuboshima

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 = 8.0

ph-index = 1

Forward Citations = 15(Granted Patents)


Company Filing History:


Years Active: 1998

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1 patent (USPTO):Explore Patents

Title: Innovator Katsumi Kuboshima: Pioneering Colored Imaging Technology

Introduction: Katsumi Kuboshima is a notable inventor based in Shizuoka, Japan, recognized for his inventive contributions in the field of imaging technology. With a focus on enhancing color reproduction through innovative methods, Kuboshima has established a prominent place within the industry.

Latest Patents: Katsumi Kuboshima holds a patent for a groundbreaking method of forming colored images using inorganic toner. This patent describes a technique for creating a colored image on a heat-resistant solid surface utilizing a toner-image-layer-bearing image formation medium. Additionally, it outlines the methods for forming both the toner-image-layer-bearing medium and the inorganic toners, which are crucial for achieving high-quality inorganic toner images.

Career Highlights: Kuboshima works at Ricoh Company, Ltd., a global leader in imaging and electronics. His work has significantly influenced the methods employed in color printing and imaging, leading to enhanced image durability and quality.

Collaborations: Throughout his career, Katsumi Kuboshima has collaborated with notable colleagues, including Kouchi Ohshima and Shinichi Kuramoto. Their collective expertise has contributed to advancements in imaging technologies and innovations within their company.

Conclusion: Katsumi Kuboshima’s contributions to the field of imaging, particularly through his patented methods involving inorganic toners, showcase his role as an inventive force in technology. His innovative techniques not only further the capabilities of color imaging but also pave the way for future developments in the industry.

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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