Shizuoka, Japan

Yohichi Kitagawa

This inventor holds 5 USPTO granted patents and 4 published patent applications. Top assignee: Ricoh Company, Ltd.. Active years: 2021-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yohichi Kitagawa. Retrieved from https://idiyas.com/inventor/yohichi-kitagawa

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 5 

% Patents Active = 100.0

Average Co-Inventor Count = 5.2

ph-index = 1


Company Filing History:


Years Active: 2021-2026

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5 patents (USPTO):Explore Patents

Title: The Innovations of Yohichi Kitagawa

Introduction

Yohichi Kitagawa is a notable inventor based in Shizuoka, Japan. He has made significant contributions to the field of imaging technology, particularly through his work with Ricoh Company, Ltd. His innovative spirit is reflected in the four patents he holds, which focus on advancements in toner and image forming methods.

Latest Patents

Kitagawa's latest patents include a range of technologies related to toner and image forming apparatuses. One of his patents describes a toner that comprises toner particles, each consisting of a toner base particle and an external additive. The toner base particle is made up of a binder resin and a colorant. This toner meets specific conditions, ensuring high performance in imaging applications. Another patent details a toner that includes toner base particles with resin particles adhered to their surfaces, along with an external additive. This formulation enhances the toner’s properties, making it suitable for various imaging processes.

Career Highlights

Throughout his career, Kitagawa has been instrumental in developing innovative solutions that improve the efficiency and quality of imaging technologies. His work at Ricoh Company, Ltd. has positioned him as a key figure in the advancement of toner technology. His patents not only showcase his technical expertise but also his commitment to enhancing imaging systems.

Collaborations

Kitagawa has collaborated with talented individuals such as Daisuke Inoue and Kenji Komito. These partnerships have fostered a creative environment that encourages the development of cutting-edge technologies in the imaging sector.

Conclusion

Yohichi Kitagawa's contributions to toner technology and image forming methods highlight his role as an influential inventor in the field. His patents reflect a dedication to innovation and excellence, making a lasting impact on 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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