Tokyo, Japan

Eiichi Hirai

This inventor holds 2 USPTO granted patents. Top assignees: Atsutoshi Goto, Levex Corporation. Active years: 1994-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Eiichi Hirai. Retrieved from https://idiyas.com/inventor/eiichi-hirai-dlcvrsd0

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 = 3.4

ph-index = 2

Forward Citations = 18(Granted Patents)


Company Filing History:


Years Active: 1994-2001

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2 patents (USPTO):Explore Patents

Title: The Innovations of Eiichi Hirai

Introduction

Eiichi Hirai is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of technology, particularly in distance measurement and magnetic bar code reading systems. With a total of two patents to his name, Hirai's work showcases his innovative spirit and technical expertise.

Latest Patents

Hirai's latest patents include a distance measuring apparatus and a magnetic bar code reading system employing a phase-shift type sensor. The distance measuring apparatus utilizes a high-frequency pulse introduced at one end of a parallel conductor, where an impedance mismatch generator is mounted. This setup allows for the calculation of distance based on the time it takes for a reflected wave to return. The magnetic bar code reading system, on the other hand, involves a coded pattern formed with two magnetically different materials. By measuring the electrical phase of the induced output signal from primary coils, the system can accurately read the coded pattern.

Career Highlights

Throughout his career, Eiichi Hirai has worked with various companies, including Levex Corporation and Atsutoshi Goto. His experience in these organizations has contributed to his development as an inventor and has provided him with valuable insights into the industry.

Collaborations

Hirai has collaborated with notable individuals such as Seiji Toda and Naomasa Oshie. These partnerships have likely enriched his work and fostered innovation in his projects.

Conclusion

Eiichi Hirai's contributions to technology through his patents reflect his dedication to innovation. His work in distance measurement and magnetic bar code reading systems demonstrates his ability to solve complex problems and advance the field.

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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