Osaka, Japan

Eiji Tatsumi

This inventor holds 11 USPTO granted patents and 3 EPO patents. Top assignees: Kyocera Document Solutions Inc., Kyocera Mita Corporation. Active years: 2005-2019.

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

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


% Patents Active = 36.4

 

Average Co-Inventor Count = 1.7

ph-index = 2

Forward Citations = 14(Granted Patents)


Company Filing History:


Years Active: 2005-2019

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11 patents (USPTO):Explore Patents

Title: Eiji Tatsumi: Innovator in Image Forming Technology

Introduction

Eiji Tatsumi is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of image forming technology, holding a total of 11 patents. His innovative designs have advanced the functionality and efficiency of various imaging devices.

Latest Patents

Among his latest patents are the developer stirring member and the developer replenishing unit. The developer stirring member features a shaft member and a flexible member that stirs the developer within a container. The flexible member is designed with a base portion and multiple short piece portions, enhancing the stirring process. Additionally, the image forming apparatus includes an angle restriction part that controls the inclination angle of a document table glass, ensuring optimal performance during image reading.

Career Highlights

Eiji Tatsumi has worked with notable companies such as Kyocera Document Solutions Inc. and Kyocera Mita Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking technologies in the imaging sector.

Collaborations

Throughout his career, Eiji has collaborated with talented individuals, including Takahisa Nakaue and Hideki Ishida. These partnerships have fostered innovation and creativity in his projects.

Conclusion

Eiji Tatsumi's work in image forming technology exemplifies his dedication to innovation and excellence. His numerous patents and collaborations highlight his impact on the industry.

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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