Tokyo, Japan

Keishi Sato

This inventor holds 3 USPTO granted patents and 1 published patent application. Top assignees: Pioneer Electronic Corporation, Hitachi Metals, Ltd.. Active years: 1984-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keishi Sato. Retrieved from https://idiyas.com/inventor/keishi-sato

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

USPTO Granted Patents = 3 

% Patents Active = 100.0

Average Co-Inventor Count = 6.2

ph-index = 2

Forward Citations = 23(Granted Patents)


Company Filing History:


Years Active: 1984-2022

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3 patents (USPTO):Explore Patents

Title: Keishi Sato: Innovator in Crack Detection and Amplifier Technology

Introduction

Keishi Sato is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the fields of crack detection technology and amplifier circuits. With a total of 3 patents to his name, Sato's work has had a notable impact on industrial applications.

Latest Patents

Sato's latest patents include an online crack detection device for rolling rolls, a rolling roll, and an online crack detection method for rolling rolls. The crack detection device is designed to perform online identification of cracks in the surface of the barrel portion of a rolling roll. This innovative device allows for the detection of cracks without substantial modifications to the rolling device or the need for multiple sensors. The system incorporates an AE sensor that detects elastic waves generated on the barrel surface, along with a calculation unit that analyzes these waves to identify potential cracks.

Another significant patent is for a push-pull amplifier circuit utilizing bipolar transistors. This circuit eliminates non-linear distortion caused by base-emitter voltages without relying on negative AC feedback. It features a current mirror circuit that supplies a constant ratio of currents to the transistors, enhancing the stability of the circuit at very low frequencies.

Career Highlights

Throughout his career, Keishi Sato has worked with notable companies such as Pioneer Electronics Corporation and Hitachi Metals, Ltd. His experience in these organizations has contributed to his expertise in developing advanced technologies.

Collaborations

Sato has collaborated with talented individuals in his field, including Kiyomi Yatsuhashi and Susumu Sueyoshi. These partnerships have fostered innovation and the sharing of ideas, further enhancing the quality of his work.

Conclusion

Keishi Sato is a distinguished inventor whose contributions to crack detection and amplifier technology have made a lasting impact. His innovative patents and collaborations reflect his commitment to advancing technology in his 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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