Tokyo, Japan

Toshiaki Ohata

This inventor holds 2 USPTO granted patents and 1 EPO patent. Top assignee: Canon Kabushiki Kaisha. Active years: 2022-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshiaki Ohata. Retrieved from https://idiyas.com/inventor/toshiaki-ohata

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

Calculating rank

% Patents Active = 100.0


Average Co-Inventor Count = 2.0

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 2022-2024

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2 patents (USPTO):Explore Patents

Title: Toshiaki Ohata: Patent Contributions to Image-Forming Technology.

Introduction

Toshiaki Ohata is an inventor based in Tokyo, Japan, whose patent work focuses on image-forming apparatus and residual-toner management. He is associated with Canon Kabushiki Kaisha and is credited with 2 patents.

Latest Patents

Ohata’s listed patents address toner collection and the operation of image-forming equipment.

- **Image forming apparatus.** This invention uses marked seals at the mounting positions of two residual-toner containers. When either container becomes full, a notifying device prompts its replacement and identifies the correct container by indicating its corresponding mark.

- **Image forming apparatus having residual toner collection and discharge.** This invention describes a feeding device that directs residual toner selectively toward either of two collecting containers. Its passages aggregate toner from one or more image-forming portions, convey it vertically, and then feed it laterally toward the selected container.

Career Highlights

Ohata’s patent portfolio reflects work on practical features of image-forming systems, including clear container identification and the routing of residual toner. These designs address maintenance and toner-handling functions within printing equipment.

Collaborations

Ohata’s listed coworkers include Hirotoshi Tajima and Tsukasa Mine. His patent work is associated with Canon Kabushiki Kaisha.

Conclusion

Toshiaki Ohata’s two listed patents demonstrate focused contributions to residual-toner collection, container replacement guidance, and image-forming apparatus design.

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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