Kanagawa, Japan

Eiji Gumbe

This inventor holds 12 USPTO granted patents and 3 published patent applications. Top assignees: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha Toshiba, Other. Active years: 2000-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Eiji Gumbe. Retrieved from https://idiyas.com/inventor/eiji-gumbe

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

USPTO Granted Patents = 12 

% Patents Active = 66.7

Average Co-Inventor Count = 1.1

ph-index = 2

Forward Citations = 39(Granted Patents)


Location History:

  • Kawasaki, JP (2000 - 2005)
  • Kanagawa, JP (2017)
  • Kanagawa-ken, JP (2004 - 2018)
  • Yokohama Kanagawa, JP (2019)

Company Filing History:


Years Active: 2000-2019

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12 patents (USPTO):Explore Patents

Title: Eiji Gumbe: Innovator in Toner Cartridge Technology

Introduction

Eiji Gumbe is a notable inventor based in Kanagawa-ken, Japan. He has made significant contributions to the field of imaging technology, particularly in the development of toner cartridges. With a total of 12 patents to his name, Gumbe has established himself as a key figure in innovation within this industry.

Latest Patents

One of his latest inventions is a developer-supplying container designed for use with image forming apparatuses. This toner cartridge features a body that contains toner and includes an opening through which the toner is supplied to the image forming apparatus. A supplying mechanism is integrated within the body, allowing for the discharge of toner from the opening to the image forming apparatus. The body is also designed to be removably mounted on a mounting unit of the image forming apparatus through a port. This innovation enhances the efficiency and convenience of toner supply in imaging devices.

Career Highlights

Eiji Gumbe has worked with prominent companies in the technology sector, including Toshiba Tec Kabushiki Kaisha and Kabushiki Kaisha Toshiba. His experience in these organizations has contributed to his expertise in developing advanced imaging solutions.

Collaborations

Throughout his career, Gumbe has collaborated with various professionals, including his coworker Noriyuki Yokoyama. These partnerships have played a crucial role in the advancement of his inventions and the overall progress in imaging technology.

Conclusion

Eiji Gumbe's contributions to toner cartridge technology and his innovative spirit have made a lasting impact on the industry. His work continues to influence the development of efficient imaging solutions, showcasing the importance of innovation in 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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