Kodaira, Japan

Yoichi Tokura

This inventor holds 1 USPTO granted patent. Top assignee: Nippon Telegraph and Telephone Public Corporation. Active years: 1978.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoichi Tokura. Retrieved from https://idiyas.com/inventor/yoichi-tokura

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 = 2.0

ph-index = 1

Forward Citations = 37(Granted Patents)


Company Filing History:


Years Active: 1978

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1 patent (USPTO):Explore Patents

Title: Yoichi Tokura: Innovator in Speech Signal Processing

Introduction

Yoichi Tokura is a prominent inventor based in Kodaira, Japan. He has made significant contributions to the field of speech signal processing. His innovative work has led to the development of a unique method for judging voiced and unvoiced conditions in speech signals.

Latest Patents

Tokura holds a patent for a method and apparatus that effectively judges the voiced and unvoiced conditions of a speech signal. This patent combines a ratio, defined as the parcor coefficient k.sub.1, between the value of the autocorrelation function of the speech signal at zero delay time and the value at a delay time of the sampling period. By comparing the results against a predetermined threshold, it can be determined whether the speech signal is in a voiced or unvoiced condition. He has 1 patent to his name.

Career Highlights

Tokura is associated with Nippon Telegraph and Telephone Public Corporation, where he has been able to apply his expertise in speech processing. His work has been instrumental in advancing technologies related to voice recognition and communication systems.

Collaborations

One of his notable collaborators is Shinichiro Hashimoto. Together, they have worked on various projects that enhance the understanding and processing of speech signals.

Conclusion

Yoichi Tokura's contributions to speech signal processing have paved the way for advancements in voice technology. His innovative methods continue to influence the field and improve communication systems.

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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