Ibaraki, Japan

Hidefumi Otsuka

This inventor holds 1 USPTO granted patent. Top assignees: Hitachi Koki Co., Ltd., Hitachi Metals, Ltd., Hitachi, Ltd.. Active years: 1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hidefumi Otsuka. Retrieved from https://idiyas.com/inventor/hidefumi-otsuka-kcu4rj3m

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 = 6.0

ph-index = 1


Company Filing History:


Years Active: 1991

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1 patent (USPTO):Explore Patents

Title: The Innovative Mind of Hidefumi Otsuka

Introduction

Hidefumi Otsuka is a notable inventor based in Ibaraki, Japan. His expertise in the field of printing technology is highlighted by his inventive contributions, notably a patented printing machine that showcases his innovative approach to combining electrical and magnetic principles.

Latest Patents

Otsuka holds one significant patent, which describes a printing machine designed to enhance the printing process through the use of electrically conductive and magnetically inductive printing toner. The invention features an array of electrode-needles that are individually energized in accordance with a desired printing pattern, allowing for precise control over the toner application. This innovative printing machine utilizes both positive and negative voltages to attract and attach toner to an insulating surface, facilitating efficient printing onto various workpieces.

Career Highlights

Throughout his career, Hidefumi Otsuka has worked with prominent companies, including Hitachi, Ltd. and Hitachi Koki Co., Ltd. His experience at these organizations underscores his deep involvement in advanced technology and innovative solutions within the printing industry.

Collaborations

Otsuka has collaborated with talented individuals such as Katsumi Muroi and Kenji Okuna during his professional journey. Their combined efforts have undoubtedly contributed to the development and enhancement of printing technologies, leveraging each other's expertise for greater innovation.

Conclusion

In conclusion, Hidefumi Otsuka's inventive contributions to the field of printing technology emphasize the impact of innovation on modern applications. His patent reflects a sophisticated understanding of electrical and magnetic mechanisms, showcasing his dedication to advancing printing methods. As he continues his work, Otsuka's innovations will undoubtedly inspire future advancements in 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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