Fuchu, Japan

Hiroyuki Maehara

This inventor holds 23 USPTO granted patents and 3 published patent applications and 4 EPO patents, primarily in Electrical Engineering. Top assignees: Kabushiki Kaisha Toshiba, Toshiba Kikai Kabushiki Kaisha, Satake Corporation. Active years: 1988-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyuki Maehara. Retrieved from https://idiyas.com/inventor/hiroyuki-maehara

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

USPTO Granted Patents = 23 

% Patents Active = 82.6

 

Average Co-Inventor Count = 4.2

ph-index = 7

Forward Citations = 128(Granted Patents)


Location History:

  • Numazu, JP (1988 - 1989)
  • Hiroshima, JP (1998)
  • Shizuoka-ken, JP (2002)
  • Kanagawa-ken, JP (2004)
  • Chiyoda-ku, JP (2013)
  • Tokyo, JP (2006 - 2016)
  • Fuchu, JP (2014 - 2017)

Company Filing History:


Years Active: 1988-2017

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Areas of Expertise:
Inrush Current Suppression
Circuit Breaker
Transformer Flux
Protection Relay
Overvoltage Suppression
Switching Control
Numerical Control
Injection Molding
Quality Evaluation
Coating Apparatus
Current Transformer
23 patents (USPTO):Explore Patents

Title: Hiroyuki Maehara: Innovator in Power Systems Technology

Introduction

Hiroyuki Maehara, based in Fuchu, Japan, is a renowned inventor specializing in electrical engineering with an impressive portfolio of 23 patents. His innovative contributions significantly enhance power systems technology, focusing on inrush current suppression and circuit-breaking mechanisms that are critical for the stability and efficiency of electrical systems.

Latest Patents

Among Hiroyuki's latest patents are two notable inventions: the Magnetizing Inrush Current Suppression Device and the Inrush Current Suppression Apparatus. The Magnetizing Inrush Current Suppression Device is designed to measure three-phase alternating current, detect interruptions, and optimize circuit operation by closing the circuit-breaker at an appropriate phase angle. Similarly, the Inrush Current Suppression Apparatus addresses inrush currents generated when shunt capacitors are connected to a power system. This innovation utilizes various measurement and detection units to ensure safe and efficient circuit operation.

Career Highlights

Hiroyuki Maehara has had a fruitful career, including work at notable companies such as Kabushiki Kaisha Toshiba and Toshiba Kikai Kabushiki Kaisha. His tenure at these companies has allowed him to develop and refine his expertise in power systems and circuit technology, contributing to their advancements in electrical engineering.

Collaborations

Throughout his career, Hiroyuki has collaborated with esteemed colleagues, including Minoru Saito and Tadashi Koshizuka. These partnerships have enabled a synergistic exchange of ideas and expertise, further propelling innovation within the field of electrical engineering.

Conclusion

Hiroyuki Maehara's contributions to power system technology demonstrate his commitment to innovation and excellence. With numerous patents to his name, he continues to influence the industry, helping to create safer and more efficient electrical systems. His work exemplifies the critical role inventors play in advancing technology for the benefit of society.

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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