Kawasaki, Japan

Nobuyuki Tonegawa

This inventor holds 55 USPTO granted patents and 7 published patent applications and 5 EPO patents, primarily in Image Processing (CPC class H04N). Top assignees: Canon Kabushiki Kaisha, Casio Computer Co., Ltd.. Active years: 1991-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nobuyuki Tonegawa. Retrieved from https://idiyas.com/inventor/nobuyuki-tonegawa

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

USPTO Granted Patents = 55 

% Patents Active = 63.6

 

Average Co-Inventor Count = 1.1

ph-index = 7

Forward Citations = 126(Granted Patents)

Forward Citations (Not Self Cited) = 98(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Kanagawa-ken, JP (2013 - 2018)
  • Kanagawa, JP (2005 - 2019)
  • Kashiwa, JP (2013 - 2020)
  • Kawasaki, JP (1991 - 2022)

Company Filing History:


Years Active: 1991-2022

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Areas of Expertise:
Image Processing Apparatus
Communication Apparatus
Control Method
Image Forming Apparatus
Transmission Apparatus
Data Communication Method
Electronic Mail
Cloud Services
User Authentication
Storage Medium
Information Processing
55 patents (USPTO):Explore Patents

Title: Innovations and Contributions of Nobuyuki Tonegawa

Introduction: Nobuyuki Tonegawa, a prolific inventor based in Kawasaki, Japan, has made significant contributions to the field of information processing with a remarkable portfolio of 55 patents. His innovative work focuses on enhancing user interactions and functionalities in multi-function peripherals and image forming apparatus.

Latest Patents: Among Tonegawa's latest patents is an information processing apparatus that emphasizes the integration of electronic signatures. This multi-function peripheral (MFP) enables users to attach electronic signatures to scanned documents, streamlining the document management process. The device supports various electronic signatures, including user and device signatures, facilitating secure document transmission via smartphones. Another notable patent involves an image forming apparatus that captures user information and generates an access token for services from providers, enhancing user experience through secure authentication and service delivery.

Career Highlights: Tonegawa's career includes tenures at prominent companies such as Canon and Casio Computer Co., Ltd., where he supported the development of cutting-edge technologies and products. His work is instrumental in advancing functionalities found in modern imaging and printing devices, showcasing his dedication to innovation.

Collaborations: Throughout his career, Tonegawa has collaborated with esteemed colleagues like Yutaka Ogasawara and Hirotake Ando. These collaborations have fostered an environment of creativity and shared knowledge, leading to groundbreaking advancements in information processing technologies.

Conclusion: Nobuyuki Tonegawa's commitment to innovation and his substantial patent portfolio reflect his status as a significant contributor to technological advancements in Japan and beyond. His work continues to have a lasting impact on the way users interact with and utilize information processing devices.

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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