Tokyo, Japan

Shinji Tamaki

This inventor holds 58 USPTO granted patents and 2 published patent applications, plus 4 CIPO patents and 11 EPO patents, primarily in Powder Container Technology (CPC class G03G). Top assignee: Ricoh Company, Ltd.. Active years: 2000-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shinji Tamaki. Retrieved from https://idiyas.com/inventor/shinji-tamaki

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

USPTO Granted Patents = 58 

% Patents Active = 91.4


 

Average Co-Inventor Count = 5.0

ph-index = 11

Forward Citations = 472(Granted Patents)

Forward Citations (Not Self Cited) = 438(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Tokyo-to, JP (2000)
  • Arakawa-ku, JP (2001)
  • Ohta-ku, JP (2014 - 2020)
  • Tokyo, JP (2000 - 2024)

Company Filing History:


Years Active: 2000-2025

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Areas of Expertise:
Powder Container
Nozzle Receiver
Image Forming Apparatus
Toner Housing
Developing Device
Replenishing Device
Container Body
Seal
Scoop
Friction Surface
Process Cartridge
Nozzle Insertion Member
58 patents (USPTO):Explore Patents

Title: Innovator Spotlight: Shinji Tamaki from Tokyo, Japan

Introduction: Shinji Tamaki is a prominent inventor based in Tokyo, Japan, recognized for his significant contributions to the field of innovative product design. With an impressive portfolio of 57 patents, Tamaki continues to pioneer advancements in technology and engineering, particularly through his work at Ricoh Company, Ltd.

Latest Patents: Among Shinji Tamaki's latest patents is an innovative powder container designed for efficiency and user convenience. This invention includes a container body with a nozzle receiving opening and a nozzle receiver, equipped with a gear and two scoops. Furthermore, the addition of a shutter serves to open and close the nozzle receiving opening, allowing controlled dispensing. The design features two protrusions that work in synergy with the scoops’ rotation, ensuring powder is effectively channeled into the desired area, demonstrating Tamaki's ingenuity in improving product functionality.

Career Highlights: Tamaki has made remarkable strides in the technology sector throughout his career. His role at Ricoh Company, Ltd. has allowed him to leverage his creativity and technical skills to develop products that enhance user experience and operational efficiency. His dedication to innovation has established him as a key figure within the organization.

Collaborations: In his career, Shinji Tamaki has collaborated with various talented individuals, including his coworkers Kenji Kikuchi and Hiroshi Hosokawa. These collaborations have fostered an environment of creativity and knowledge sharing, further driving the advancement of technology in their projects.

Conclusion: Shinji Tamaki's work and extensive patent portfolio illustrate his commitment to innovation. His inventive spirit and collaborations with talented colleagues at Ricoh Company, Ltd. not only highlight his prowess as an inventor but also contribute to the ongoing evolution of industry standards in product design. As technology continues to advance, contributors like Tamaki remain at the forefront, shaping the future of engineering and product development.

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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