Tama, Japan

Katsuhiko Sekiguchi

This inventor holds 11 USPTO granted patents and 5 EPO patents. Top assignees: Kabushiki Kaisha Toshiba, Nagoya Institute of Technology, Tohoku University. Active years: 1999-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katsuhiko Sekiguchi. Retrieved from https://idiyas.com/inventor/katsuhiko-sekiguchi

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


% Patents Active = 63.6

 

Average Co-Inventor Count = 3.2

ph-index = 5

Forward Citations = 177(Granted Patents)


Location History:

  • Tokyo, JP (1999 - 2003)
  • Tama, JP (2003 - 2017)

Company Filing History:


Years Active: 1999-2017

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11 patents (USPTO):Explore Patents

Title: Katsuhiko Sekiguchi: Innovator in Control Systems and Protection Technologies

Introduction

Katsuhiko Sekiguchi, an accomplished inventor based in Tama, Japan, holds an impressive portfolio of 11 patents. His innovative contributions primarily focus on control systems and protection technologies, showcasing his expertise in advancing electrical engineering and safety measures.

Latest Patents

Among his latest patents, Sekiguchi has developed a variety of cutting-edge technologies. One notable patent involves a control system that incorporates an A/D conversion unit with a modulating device. This device samples an analog electric quantity at a predetermined modulation frequency, outputting a time-varying bit stream obtained through modulation. Additionally, the digital operation processing unit features multiple digital filters whose frequency characteristics adjust according to the type of protection control operation.

Another significant invention is his protection relay device, which consists of an analog-to-digital converter that transforms an analog signal from an input unit into digital data. It also includes a variable filter controlled externally to enhance the filtering process. The adaptive controller is designed to adjust the filter coefficient dynamically, ensuring a closer alignment between filtered digital data and a target signal.

Career Highlights

Throughout his career, Katsuhiko Sekiguchi has made noteworthy contributions while working for major companies, including Toshiba Corporation. He has also engaged academically at Yokohama National University, linking industry with innovative research.

Collaborations

Sekiguchi has collaborated with several eminent individuals in his field, including Michio Masui and Yoshihiro Shirota. These partnerships have fostered innovative solutions and advancements in electrical and control systems.

Conclusion

Katsuhiko Sekiguchi's innovative spirit and extensive patent portfolio underscore his significant role in the development of control systems and protection technologies. His contributions reflect a commitment to enhancing electrical safety and efficiency, marking him as a noteworthy inventor in the tech landscape.

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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