Tokyo, Japan

Rokuro Watabe

This inventor holds 1 USPTO granted patent. Top assignee: Ricoh Company, Ltd.. Active years: 1979.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Rokuro Watabe. Retrieved from https://idiyas.com/inventor/rokuro-watabe

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 10(Granted Patents)


Company Filing History:


Years Active: 1979

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1 patent (USPTO):Explore Patents

Title: The Innovations of Rokuro Watabe: A Pioneer in Optical Imaging Systems

Introduction

Rokuro Watabe, a prominent inventor based in Tokyo, Japan, has made significant contributions to the field of optical imaging technology. With one patented innovation to his name, Watabe's work has had a lasting impact on the way electrophotography functions, showcasing his ingenuity and expertise in the area.

Latest Patents

Watabe's notable patent is centered around an optical imaging system for electrophotography. This groundbreaking invention employs a converging lens that projects a light image of an original document onto the surface of a photoconductive drum along a specifically designed optical path. Integral to this system is a dichroic mirror, which reflects the light image with characteristics that align with the spectral sensitivity of the drum. The advanced design also ensures that unwanted wavelengths are filtered out, being transmitted through the dichroic mirror and ultimately absorbed by an integrated absorption plate. Notably, both the dichroic mirror and absorption plate are encased in a hermetically sealed unit, with the converging lens forming an essential part of this assembly.

Career Highlights

Rokuro Watabe currently employs his talents at Ricoh Company, Ltd., a leader in imaging and electronics solutions. His innovative approach to optical systems has positioned him as a key figure in advancing the functionality and efficiency of electrophotographic devices.

Collaborations

Throughout his career, Watabe has collaborated with talented colleagues, including Makoto Ohira and Katsuo Sakai. Together, they have fostered an environment of creativity and innovation, contributing to the pioneering advancements within their field.

Conclusion

In conclusion, Rokuro Watabe stands out as a critical inventor in the domain of optical imaging systems. His patent for an advanced electrophotography system reflects his dedication to enhancing technology and improving processes within the industry. With his ongoing work at Ricoh Company, Ltd., Watabe continues to push the boundaries of what is possible in imaging technology.

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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