Gunma, Japan

Tokuzo Sekiyama

This inventor holds 3 USPTO granted patents and 1 published patent application and 5 EPO patents. Top assignee: Amada Company, Limited. Active years: 2009-2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tokuzo Sekiyama. Retrieved from https://idiyas.com/inventor/tokuzo-sekiyama

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

USPTO Granted Patents = 3 

% Patents Active = 66.7

 

Average Co-Inventor Count = 4.0

ph-index = 1

Forward Citations = 6(Granted Patents)


Company Filing History:


Years Active: 2009-2010

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3 patents (USPTO):Explore Patents

Title: Innovations of Tokuzo Sekiyama

Introduction

Tokuzo Sekiyama is a notable inventor based in Gunma, Japan. He has made significant contributions to the field of press machine technology, holding a total of 3 patents. His work focuses on enhancing the efficiency and functionality of servo drive systems in press machines.

Latest Patents

One of his latest patents is a servo drive system for a press machine. This system includes a ram, an operation shaft that vertically moves the ram, and a servo motor that serves as the power source. The servo motor generates ram pressure using torque based on at least one speed-torque characteristic. The operation shaft is directly driven by the servo motor, which is optimized to produce an ideal punching pattern for various workpieces. Another patent involves a continuous working system of a press machine, which allows the ram to continuously reciprocate and turn within a specific angle range. This innovation enables efficient press working by maintaining the ram's movement between predetermined positions.

Career Highlights

Tokuzo Sekiyama is associated with Amada Company, Limited, a leading manufacturer in the field of machine tools and press technology. His work at Amada has been instrumental in advancing the capabilities of press machines, making them more efficient and versatile.

Collaborations

He has collaborated with notable coworkers such as Kinshiro Naito and Toshiaki Otake, contributing to various projects that enhance the functionality of press machines.

Conclusion

Tokuzo Sekiyama's innovations in servo drive systems and continuous working systems for press machines demonstrate his commitment to advancing technology in this field. His contributions have significantly impacted the efficiency of manufacturing processes.

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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