Tokyo, Japan

Hiroshi Maekawa

This inventor holds 3 USPTO granted patents. Top assignee: Mitsubishi Denki Kabushiki Kaisha. Active years: 1978-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Maekawa. Retrieved from https://idiyas.com/inventor/hiroshi-maekawa-u10o3jxh

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 = 3.1

ph-index = 2

Forward Citations = 15(Granted Patents)


Location History:

  • Amagasaki, JP (1978)
  • Suita, JP (1986)
  • Tokyo, JP (1999)

Company Filing History:


Years Active: 1978-1999

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3 patents (USPTO):Explore Patents

Title: Hiroshi Maekawa: Innovator in Gas Sensing and Power Systems

Introduction

Hiroshi Maekawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the fields of gas sensing and power systems. With a total of 3 patents, his work reflects a commitment to innovation and technological advancement.

Latest Patents

One of Maekawa's latest patents is a gas sensor designed for measuring low concentrations of gases. This sensor boasts a quick response time and high stability, making it suitable for long-term use. It consists of a solid electrolyte, a detecting electrode, a counter electrode, and lead wires for electric voltage application. The unique feature of this gas sensor is the use of an inactive substance that does not react with the gas being detected, enhancing its reliability.

Another notable invention is an alternating current limiting apparatus. This device forms first and second series circuits connected in parallel between different power system lines. The first series circuit is resonated with a reactor and a capacitor, while the second series circuit includes a capacitor or reactor and two resistors. This innovative design allows for the limitation of current flow during faults in the power systems, ensuring safety and efficiency.

Career Highlights

Hiroshi Maekawa is currently employed at Mitsubishi Electric Corporation, where he continues to develop groundbreaking technologies. His work has garnered attention for its practical applications in various industries, particularly in enhancing safety and efficiency in power systems.

Collaborations

Maekawa has collaborated with notable colleagues, including Mitsuhito Kamei and Shiro Yamauchi. These partnerships have contributed to the successful development of his innovative technologies.

Conclusion

Hiroshi Maekawa's contributions to gas sensing and power systems exemplify the spirit of innovation. His patents reflect a deep understanding of technology and its applications, making him a valuable figure in the field of invention.

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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