Fuchu, Japan

Shigeaki Minamihata

This inventor holds 2 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1979-1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeaki Minamihata. Retrieved from https://idiyas.com/inventor/shigeaki-minamihata

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 = 2.4

ph-index = 1

Forward Citations = 1(Granted Patents)


Location History:

  • Fuchu, JP (1979)
  • Takasaki, JP (1988)

Company Filing History:


Years Active: 1979-1988

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2 patents (USPTO):Explore Patents

Title: Shigeaki Minamihata: Innovator in Circuit Design

Introduction

Shigeaki Minamihata is a notable inventor based in Fuchu, Japan. He has made significant contributions to the field of circuit design, holding a total of 2 patents. His work focuses on innovative circuit configurations that enhance performance and efficiency.

Latest Patents

Minamihata's latest patents include the "IIL circuit with PNP injector" and the "Phase control circuit and oscillator circuit using it." The IIL circuit features a multi-stage design that incorporates common IIL elements utilizing PNP transistors as injectors and NPN transistors as inverters. Additionally, the inverse IIL elements employ NPN transistors as injectors and PNP transistors as inverters. The phase control circuit patent outlines a system that includes a controlled voltage source and a controlled current source, which receives a reference frequency signal. This circuit is designed to work seamlessly with an oscillator circuit that amplifies the output from a crystal oscillator, making it suitable for integrated circuit construction.

Career Highlights

Minamihata is currently employed at Hitachi, Ltd., where he continues to develop innovative technologies. His work has been instrumental in advancing circuit design, contributing to the efficiency and functionality of electronic devices.

Collaborations

Some of his notable coworkers include Makoto Furihata and Takao Yokoyama, who have collaborated with him on various projects within the company.

Conclusion

Shigeaki Minamihata's contributions to circuit design through his patents reflect his innovative spirit and dedication to advancing technology. His work at Hitachi, Ltd. continues to influence the field, showcasing the importance of collaboration and creativity in engineering.

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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