Tokyo, Japan

Hisashi Shigematsu

This inventor holds 1 USPTO granted patent. Top assignee: Koyo Electronics Industries Co., Ltd.. Active years: 1987.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisashi Shigematsu. Retrieved from https://idiyas.com/inventor/hisashi-shigematsu

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 = 2(Granted Patents)


Company Filing History:


Years Active: 1987

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1 patent (USPTO):Explore Patents

Title: Hisashi Shigematsu: Innovator in Programmable Controllers

Introduction

Hisashi Shigematsu is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of programmable controllers, showcasing his expertise through his innovative designs and patents. His work has had a lasting impact on the automation industry.

Latest Patents

Hisashi Shigematsu holds a patent for a "Programmable controller having selectively prohibited outputs." This invention allows a programmable controller to operate according to a stored program while being capable of prohibiting outputs to selected controlled external apparatuses at any step in a control sequence. The design ensures that following the removal of the output prohibition, the control sequence can be executed from the state present when the output was prohibited. This feature allows for the safe stopping of sequential operations of controlled external apparatuses and enables a quick restart without wasting time.

Career Highlights

Shigematsu is associated with Koyo Electronics Industries Co., Ltd., where he has contributed to the development of advanced electronic solutions. His work in the company has been instrumental in enhancing the functionality and efficiency of programmable controllers.

Collaborations

Hisashi Shigematsu has worked alongside Katsuji Toyooka, collaborating on various projects that aim to push the boundaries of technology in the field of automation.

Conclusion

Hisashi Shigematsu's innovative contributions to programmable controllers highlight his role as a key figure in the automation industry. His patent reflects a commitment to improving operational efficiency and safety in electronic systems.

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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