logo

For the Inventor, By the Inventor

Tokyo, Japan

Toshiyuki Hanazawa

This inventor holds 10 USPTO granted patents and 6 published patent applications and 2 EPO patents. Top assignees: Mitsubishi Electric Corporation, Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Research Laboratories, Inc.. Active years: 2004-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshiyuki Hanazawa. Retrieved from https://idiyas.com/inventor/toshiyuki-hanazawa

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

USPTO Granted Patents = 10 

% Patents Active = 50.0

 

Average Co-Inventor Count = 1.6

ph-index = 2

Forward Citations = 11(Granted Patents)


Location History:

  • Chiyoda-ku, JP (2016 - 2017)
  • Tokyo, JP (2004 - 2023)

Company Filing History:

goldMedal9 out of 16,602 
 
Mitsubishi Electric Corporation
 patents
silverMedal1 out of 21,351 
 
Mitsubishi Denki Kabushiki Kaisha
 patents
bronzeMedal1 out of 1,698 
 
Mitsubishi Electric Research Laboratories, Inc.
 patents
where one patent can have more than one assignee

Years Active: 2004-2023

Loading Chart...
Loading Chart...
10 patents (USPTO):Explore Patents
1. 11798574 - Voice separation device, voice separation method, voice separation program, and voice separation system (2023-10-24),
2. 11527259 - Learning device, voice activity detector, and method for detecting voice activity (2022-12-13),
3. 11132998 - Voice recognition device and voice recognition method (2021-09-28),
4. 10418030 - Acoustic model training device, acoustic model training method, voice recognition device, and voice recognition method (2019-09-17),
5. 9761228 - Voice recognition system and voice recognition device (2017-09-12),
6. 9431010 - Speech-recognition device and speech-recognition method (2016-08-30),
7. 8914385 - Search device and search program (2014-12-16),
8. 8880400 - Voice recognition device (2014-11-04),
9. 8126714 - Voice search device (2012-02-28),
10. 6708151 - Reference pattern generating apparatus and method, and computer readable medium having reference pattern generating program embodied thereon (2004-03-16),

Title: Innovations of Toshiyuki Hanazawa

Introduction

Toshiyuki Hanazawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of voice separation technology, holding a total of 10 patents. His work focuses on enhancing the clarity and separation of speech in mixed audio environments.

Latest Patents

Hanazawa's latest patents include a voice separation device, voice separation method, voice separation program, and voice separation system. The speech separation device is part of a speech separation system that features a component designed to extract time-series data of speech features from mixed audio. It includes a block division unit that segments this data into manageable blocks. Additionally, a speech separation neural network is utilized to create time-series data of masks for multiple speakers. Finally, a speech restoration unit is responsible for reconstructing the speech data for each speaker from the processed information.

Career Highlights

Throughout his career, Hanazawa has worked with notable companies such as Mitsubishi Electric Corporation and Mitsubishi Electric Research Laboratories, Inc. His experience in these organizations has allowed him to develop and refine his innovative technologies in voice processing.

Collaborations

Hanazawa has collaborated with talented individuals in his field, including Yohei Okato and Tomohiro Narita. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.

Conclusion

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]
Loading…