Zama, Japan

Kei Shimizu

This inventor holds 2 USPTO granted patents. Top assignee: Nissan Motor Company Limited. Active years: 1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kei Shimizu. Retrieved from https://idiyas.com/inventor/kei-shimizu

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 = 2

Forward Citations = 10(Granted Patents)


Company Filing History:


Years Active: 1990

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2 patents (USPTO):Explore Patents

Title: Kei Shimizu and Sequence Control Systems.

Introduction

Kei Shimizu is an inventor associated with Zama, Japan, and Nissan Motor Company Limited. His patent work focuses on sequence control systems designed to make automated processes easier to operate, modify, and troubleshoot. He is credited with 2 patents.

Latest Patents

Shimizu’s listed patents describe closely related approaches to controlling sequences of machine operations. In both, sequence processes are linked in a chain, while unit processes form rings that allow an actuation member to operate in forward and reverse directions.

The linked start-side and end-side activators support stopping, restarting, and reversing a process from different steps. The system is intended to simplify program modification and troubleshooting, including when operators switch between automatic and manual operation. The descriptions also address controlling multiple machines with one sequencer, with a selectively connected operation board helping reduce robot space and cost.

Career Highlights

Shimizu’s listed inventions address practical challenges in industrial automation. By organizing sequence operations into linked processes, his designs aim to provide flexible control without requiring complex processing programs.

Collaborations

His listed coworkers include Hisashi Kubota and Takayuki Kawakami. His work is associated with Nissan Motor Company Limited.

Conclusion

Kei Shimizu’s patent contributions center on adaptable sequence control, with features intended to support efficient operation, troubleshooting, and modification of automated machinery.

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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