Tochigi, Japan

Takashi Hashimoto

This inventor holds 1 USPTO granted patent and 1 published patent application. Top assignee: Fuji Electric Co., Ltd.. Active years: 1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takashi Hashimoto. Retrieved from https://idiyas.com/inventor/takashi-hashimoto-01yxjx64

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

Calculating rank
USPTO Granted Patents = 1 

% Patents Active = 100.0

Average Co-Inventor Count = 4.0

ph-index = 1

Forward Citations = 13(Granted Patents)


Company Filing History:


Years Active: 1999

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1 patent (USPTO):Explore Patents

Title: Takashi Hashimoto: Innovator in Earth Leakage Protection

Introduction

Takashi Hashimoto is a notable inventor based in Tochigi, Japan. He has made significant contributions to the field of electrical safety, particularly with his innovative designs aimed at protecting against electrical faults. His work has garnered attention for its practical applications in enhancing safety measures in electrical systems.

Latest Patents

One of Hashimoto's key inventions is an earth leakage breaker. This device includes a first comparator, a second comparator connected to the first, and a third comparator designed to distinguish leakage currents from grounding currents caused by lightning surges or heavy ground faults. The invention also features a monostable multivibrator that forms a time gate of a predetermined period, a counter for detecting pulse outputs, and a trip signal generator circuit that outputs a trip signal in cases of leakage and heavy ground faults. This innovative earth leakage breaker effectively prevents unnecessary interruptions caused by impulsive grounding currents due to lightning surges.

Career Highlights

Hashimoto is associated with Fuji Electric Co., Ltd., where he has been instrumental in developing safety devices that protect both equipment and users from electrical hazards. His dedication to innovation in electrical safety has positioned him as a key figure in his field.

Collaborations

Throughout his career, Hashimoto has collaborated with talented colleagues, including Shoji Sasaki and Kiyoshi Tanigawa. These partnerships have fostered a creative environment that encourages the development of groundbreaking technologies.

Conclusion

Takashi Hashimoto's contributions to electrical safety through his earth leakage breaker exemplify the importance of innovation in protecting against electrical hazards. His work continues to influence the industry and enhance safety standards.

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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