Susono, Japan

Kuniaki Doi

This inventor holds 2 USPTO granted patents and 1 published patent application. Top assignee: Sumitomo Riko Company Limited. Active years: 2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kuniaki Doi. Retrieved from https://idiyas.com/inventor/kuniaki-doi

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

Calculating rank
USPTO Granted Patents = 2 

% Patents Active = 100.0

Average Co-Inventor Count = 3.4

ph-index = 1

Forward Citations = 1(Granted Patents)


Location History:

  • Susono, JP (2017)
  • Komaki, JP (2017)

Company Filing History:


Years Active: 2017

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2 patents (USPTO):Explore Patents

Title: Kuniaki Doi: Innovating Paper Feeding Solutions

Introduction: Kuniaki Doi is an esteemed inventor based in Susono, Japan, recognized for his significant contributions to the field of paper feeding technology. With a commendable portfolio of two registered patents, Doi has been pivotal in enhancing the functionality of electrophotographic image forming devices.

Latest Patents: Kuniaki Doi's latest patents focus on the development of paper feed rollers. One innovation features a paper feed roller that includes an elastic layer made from thermosetting polyurethane, integrated with a plasticizer in varying quantities. This design helps optimize the surface residual charge of the roller, which is vital for its performance in printing devices. By implementing precise measurements and manufacturing techniques, Doi has improved the efficiency of paper feeding units. The other patent emphasizes the multifaceted design of the paper feed roller itself, which has an embossed surface structure comprising crest-like and valley-like parts, enhancing its grip on the paper being fed.

Career Highlights: As a member of Sumitomo Riko Company Limited, Kuniaki Doi has been instrumental in driving innovation in paper feeding technology. His engineering acumen and inventive spirit have led to advanced solutions tailored for the ever-evolving demands of the printing industry.

Collaborations: Doi collaborates closely with colleagues such as Yuma Yoshida and Atsuhiro Kawano. Their teamwork fosters a creative environment that encourages the development of cutting-edge technologies and efficient manufacturing processes.

Conclusion: Kuniaki Doi's contributions to the paper feeding sector are notable, demonstrating his commitment to innovation and quality. As the industry progresses, his inventions are likely to play a key role in shaping the future of electrophotographic devices, solidifying his legacy as a transformative inventor.

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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