Tokyo, Japan

Souji Onuki

This inventor holds 1 USPTO granted patent. Top assignee: Pentel Kabushiki Kaisha. Active years: 2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Souji Onuki. Retrieved from https://idiyas.com/inventor/souji-onuki

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 = 2.0

ph-index = 1

Forward Citations = 28(Granted Patents)


Company Filing History:


Years Active: 2000

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1 patent (USPTO):Explore Patents

Title: The Innovative Mind of Souji Onuki

Introduction

Souji Onuki is a notable inventor based in Tokyo, Japan. He is recognized for his contributions to the field of writing instruments, particularly through his innovative designs. His work has led to the development of practical and efficient tools that enhance the writing experience.

Latest Patents

Onuki holds a patent for the side-knock type mechanical pencil. This invention showcases his ability to combine functionality with user-friendly design. The mechanical pencil has gained attention for its unique mechanism, which allows for easy lead advancement.

Career Highlights

Souji Onuki is currently employed at Pentel Kabushiki Kaisha, a leading company in the stationery industry. His role at Pentel has allowed him to further explore his passion for creating innovative writing solutions. His dedication to his craft is evident in the quality and practicality of his inventions.

Collaborations

Onuki has collaborated with his coworker, Shigeki Maruyama, to enhance the development of their products. Their teamwork has contributed to the success of various projects within the company.

Conclusion

Souji Onuki's inventive spirit and dedication to innovation have made a significant impact in the world of writing instruments. His patent for the side-knock type mechanical pencil exemplifies his commitment to enhancing user experience.

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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