Ohra, Japan

Yokichi Hayashi

This inventor holds 3 USPTO granted patents. Top assignee: Adv Antest Corporation. Active years: 1995-1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yokichi Hayashi. Retrieved from https://idiyas.com/inventor/yokichi-hayashi

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


% Patents Active = 100.0

Average Co-Inventor Count = 5.0

ph-index = 3

Forward Citations = 80(Granted Patents)


Location History:

  • Ohra, JP (1995)
  • Gunma, JP (1996)
  • Ohra-gun, JP (1998)

Company Filing History:


Years Active: 1995-1998

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3 patents (USPTO):Explore Patents

Title: Yokichi Hayashi: Innovator in Variable Delay Circuits

Introduction

Yokichi Hayashi is a notable inventor based in Ohra, Japan. He has made significant contributions to the field of electronics, particularly in the development of variable delay circuits. With a total of 3 patents to his name, Hayashi's work showcases his expertise and innovative spirit.

Latest Patents

One of Hayashi's latest patents involves a fine variable delay circuit. This circuit includes a buffer with an input connected to a signal input terminal and an output. The buffer has an output impedance and outputs a logical level from the output. Additionally, the circuit features a Schmidt trigger buffer connected to the output of the buffer, along with a CMOS transistor that plays a crucial role in setting the delay. The design also incorporates first and second switching elements, which are controlled by a delay setting circuit responsive to a select signal, allowing for precise delay adjustments.

Another patent by Hayashi describes a variable delay circuit that utilizes first and second exclusive-OR gates (EXOR gates). These gates are connected to a delay input terminal, with one side of the first EXOR gate grounded and the other side of the second EXOR gate connected to a select signal input terminal. A capacitor is integrated between the outputs of the two EXOR gates, and a buffer is used to output logical levels based on the input threshold.

Career Highlights

Yokichi Hayashi is currently employed at Advantest Corporation, where he continues to innovate and develop advanced electronic solutions. His work has been instrumental in enhancing the performance and reliability of electronic circuits.

Collaborations

Hayashi collaborates with talented individuals in his field, including Hiroshi Tsukahara and Katsumi Ochiai. These partnerships contribute to the advancement of technology and the successful development of innovative products.

Conclusion

Yokichi Hayashi's contributions to the field of variable delay circuits highlight his role as a significant inventor in the electronics industry. His patents reflect a deep understanding of circuit design and innovation.

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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