Osaka, Japan

Tatsuhiko Yoshii

This inventor holds 26 USPTO granted patents and 4 published patent applications and 10 EPO patents, primarily in Inkjet Technology. Top assignees: Kyocera Document Solutions Inc., Kyocera Mita Corporation. Active years: 2013-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tatsuhiko Yoshii. Retrieved from https://idiyas.com/inventor/tatsuhiko-yoshii

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

USPTO Granted Patents = 26 

% Patents Active = 80.8

 

Average Co-Inventor Count = 1.3

ph-index = 5

Forward Citations = 64(Granted Patents)


Company Filing History:


Years Active: 2013-2025

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Areas of Expertise:
Inkjet Ink
Ink Cartridge
Toner Case
Image Forming Apparatus
Developer Case
Toner Transportation Device
Supply Liquid Tank
Untransferred Toner Recovery
Powder Supply Device
Toner Conveying Device
Toner Detection Sensor
26 patents (USPTO):Explore Patents

Title: Tatsuhiko Yoshii: Innovator in Ink Cartridge Technology

Introduction: Tatsuhiko Yoshii, a prominent inventor based in Osaka, Japan, has made significant contributions to the field of ink cartridge technology. With a total of 24 patents to his name, Yoshii's innovations reflect a deep understanding of mechanical design and functionality.

Latest Patents: Among his latest patents is an innovative ink cartridge design that encompasses an ink container and an image forming apparatus. This ink container consists of an ink pack, a paper case, and a cover. The ink pack is specifically designed to store ink efficiently, while the paper case provides a streamlined shape elongated in one direction for practical use. The cover is securely bonded to one end of the case, featuring a protection rib that protrudes from the outer circumferential face of the cover. This rib serves a crucial role by shielding the bonded portion of the case and the cover from external interference.

Career Highlights: Tatsuhiko Yoshii has built a dynamic career working for esteemed companies such as Kyocera Document Solutions and Kyocera Mita Corporation. His expertise and contributions have helped shape the development of innovative printing solutions and accessories.

Collaborations: Throughout his professional journey, Yoshii has collaborated with talented individuals like Koji Murata and Naoki Yamane. Together, they have worked on various projects, enhancing the technological advancements in the printing industry.

Conclusion: Tatsuhiko Yoshii's dedication to innovation in ink cartridge technology sets a benchmark within the industry. His inventions, characterized by their practical design and utility, continue to influence the future of printing solutions. As he advances in his career, the anticipation of his next breakthroughs remains high among peers and industry leaders alike.

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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