Kanagawa, Japan

Yoshifumi Ohtsuka

This inventor holds 1 USPTO granted patent. Top assignee: Ricoh Company, Ltd.. Active years: 2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshifumi Ohtsuka. Retrieved from https://idiyas.com/inventor/yoshifumi-ohtsuka

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


% Patents Active = 100.0

Average Co-Inventor Count = 5.0

ph-index = 1


Company Filing History:


Years Active: 2025

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1 patent (USPTO):Explore Patents

Title: Yoshifumi Ohtsuka: Innovator in Sheet Feeding Technology

Introduction

Yoshifumi Ohtsuka is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of imaging technology, particularly through his innovative designs in sheet feeding devices.

Latest Patents

Ohtsuka holds a patent for a "Sheet feeding device and image forming apparatus incorporating the sheet feeding device." This invention features a sheet tray that includes a bottom plate designed to feed sheets toward an image forming apparatus. The device also includes an extended bottom plate that extends outward and is coupled to the bottom plate of the sheet tray, facilitating efficient sheet conveyance. The casing of the device covers the extended bottom plate, while a support is positioned between the casing's inner wall and the extended bottom plate to bear its weight load. Ohtsuka's patent is a testament to his innovative approach to improving the functionality of imaging devices.

Career Highlights

Yoshifumi Ohtsuka is associated with Ricoh Company, Ltd., a leading player in imaging and electronics. His work at Ricoh has allowed him to focus on developing advanced technologies that enhance the efficiency and reliability of imaging systems.

Collaborations

Ohtsuka has collaborated with talented coworkers, including Yuka Kurusu and Masato Hashimoto. Their combined expertise has contributed to the successful development of innovative technologies within the company.

Conclusion

Yoshifumi Ohtsuka's contributions to sheet feeding technology exemplify his commitment to innovation in the imaging industry. His patent and work at Ricoh Company, Ltd. highlight his role as a key inventor in this field.

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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