Tokyo, Japan

Shin-ichi Kawahara

This inventor holds 2 USPTO granted patents. Top assignee: Ricoh Company, Ltd.. Active years: 1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shin-ichi Kawahara. Retrieved from https://idiyas.com/inventor/shin-ichi-kawahara

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 = 3.1

ph-index = 2

Forward Citations = 54(Granted Patents)


Company Filing History:


Years Active: 1999

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2 patents (USPTO):Explore Patents

Title: Innovator Shin-ichi Kawahara: Pioneering Toner Sorting Technology

Introduction

Shin-ichi Kawahara is a notable inventor based in Tokyo, Japan, recognized for his significant contributions to the field of imaging technologies. With a track record of two patents, he has demonstrated a strong commitment to enhancing the efficiency and functionality of toner-related devices, particularly in the context of image forming apparatuses.

Latest Patents

Kawahara's recent innovations include two patented inventions that focus on toner sorting. The first patent is a toner sorting device designed to efficiently separate reusable toner from used toner. This device includes a mechanism for taking in used toner conveyed from an image forming apparatus and transport it in one direction. It features a sophisticated sifting device with a tubular sieve that segregates reusable toner, as well as systems for holding and rotating the sieve. The design includes openings for both intake and discharge, enabling effective recycling of toner materials.

The second patent concerns a cleaning device specifically engineered for an image transfer belt found in imaging apparatuses. This invention addresses the removal of residual toner from the intermediate transfer belt. It encompasses a cleaning blade, a bias roller, and a bias roller cleaning blade, all designed to work harmoniously. The clever positional offset of the bias roller ensures that even toner accumulating on the front edge of the transfer belt is efficiently addressed, contributing to improved device performance.

Career Highlights

Shin-ichi Kawahara is associated with Ricoh Company, Ltd., a leading technology company renowned for its imaging and electronics solutions. His inventive contributions play a vital role in enhancing the company's product offerings and operational efficiencies in toner management technology.

Collaborations

Kawahara's work is further enriched by collaborations with fellow experts in the field, such as Masasumi Yahata and Shunji Katoh. These partnerships not only amplify the innovation process but also foster the development of cutting-edge technologies that streamline imaging processes.

Conclusion

In conclusion, Shin-ichi Kawahara stands out as a prominent figure in the domain of imaging innovations, pioneering advancements in toner sorting and cleaning technologies. His inventions not only contribute to environmental sustainability by facilitating toner reuse but also enhance operational efficiency in printing technologies. As he continues his journey at Ricoh Company, Ltd., his work promises to impact the future of imaging devices significantly.

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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