Sakai, Japan

Yuuichi Kohyama

This inventor holds 1 USPTO granted patent. Top assignee: Ricoh Company, Ltd.. Active years: 2008.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yuuichi Kohyama. Retrieved from https://idiyas.com/inventor/yuuichi-kohyama

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 = 17.0

ph-index = 1

Forward Citations = 7(Granted Patents)


Company Filing History:


Years Active: 2008

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1 patent (USPTO):Explore Patents

Title: Yuuichi Kohyama: Innovator in Toner Production Technology

Introduction

Yuuichi Kohyama is a notable inventor based in Sakai, Japan. He has made significant contributions to the field of toner production technology. His innovative work has led to the development of advanced milling and classifying apparatuses.

Latest Patents

Kohyama holds 1 patent for his invention titled "Milling and classifying apparatus, collision mill, air classifier, toner, and method for producing toner." This patent discloses a milling and classifying apparatus designed to produce toner fine particles. The apparatus includes a collision mill and an air classifier. The collision mill features a jet nozzle room, a path, a collision plate, and a collision member mounted to a support of the collision plate downstream. The air classifier consists of a dispersion room and a classification room, with the classification room positioned below the dispersion room. A flow stabilizer is arranged at the central suction of the separator core to control the swirl stream generated within the classification room. This design allows for the centrifugation of powder into coarse and fine particles.

Career Highlights

Kohyama is currently employed at Ricoh Company, Ltd., where he continues to innovate in the field of toner production. His work has been instrumental in enhancing the efficiency and effectiveness of toner manufacturing processes.

Collaborations

Kohyama has collaborated with notable colleagues, including Tomoyuki Yamada and Kenkoh Degura. Their combined expertise has contributed to advancements in their respective fields.

Conclusion

Yuuichi Kohyama's contributions to toner production technology exemplify the impact of innovative thinking in the industry. His patent and ongoing work at Ricoh Company, Ltd. highlight his commitment to advancing technology in this area.

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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