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For the Inventor, By the Inventor

Kawasaki, Japan

Nobuyuki Washio

This inventor holds 27 USPTO granted patents and 5 published patent applications and 1 EPO patent, primarily in Speech Recognition Technology. Top assignees: Fujitsu Corporation, Oki Electric Cable Co., Ltd.. Active years: 2001-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nobuyuki Washio. Retrieved from https://idiyas.com/inventor/nobuyuki-washio

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

USPTO Granted Patents = 27 

% Patents Active = 48.1


Average Co-Inventor Count = 1.9

ph-index = 6

Forward Citations = 401(Granted Patents)


Location History:

  • Kawasaki, JP (2001 - 2015)
  • Akashi, JP (2015 - 2022)

Company Filing History:

goldMedal26 out of 39,371 
 
Fujitsu Corporation
 patents
silverMedal1 out of 10 
 
Oki Electric Cable Co., Ltd.
 patents

Years Active: 2001-2026

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Areas of Expertise:
Speech Recognition
Utterance Detection
Sound Source Estimation
Voice Retrieval
Acoustic Model Generation
Communication Terminal
Non-Speech Detection
Sound Signal Recognition
Multimedia Systems
Database Management
Storage Medium
Voice Interactive Systems
27 patents (USPTO):Explore Patents
1. 12670279 - Database management system using policy labels, role patterns, roles, and access control relating thereto in metadata of a target table (2026-06-30),
2. 11295755 - Storage medium, sound source direction estimation method, and sound source direction estimation device (2022-04-05),
3. 11205416 - Non-transitory computer-read able storage medium for storing utterance detection program, utterance detection method, and utterance detection apparatus (2021-12-21),
4. 11081120 - Encoded-sound determination method (2021-08-03),
5. 10880643 - Sound-source-direction determining apparatus, sound-source-direction determining method, and storage medium (2020-12-29),
6. 10755731 - Apparatus, method, and non-transitory computer-readable storage medium for storing program for utterance section detection (2020-08-25),
7. 10609479 - Device and method for determining a sound source direction (2020-03-31),
8. 10446173 - Apparatus, method for detecting speech production interval, and non-transitory computer-readable storage medium for storing speech production interval detection computer program (2019-10-15),
9. 9466291 - Voice retrieval device and voice retrieval method for detecting retrieval word from voice data (2016-10-11),
10. 9099088 - Utterance state detection device and utterance state detection method (2015-08-04),
11. 9031841 - Speech recognition apparatus, speech recognition method, and speech recognition program (2015-05-12),
12. 8903724 - Speech recognition device and method outputting or rejecting derived words (2014-12-02),
13. 8798991 - Non-speech section detecting method and non-speech section detecting device (2014-08-05),
14. 8731926 - Spoken term detection apparatus, method, program, and storage medium (2014-05-20),
15. 8521132 - Abnormality detecting apparatus for communication terminal and abnormality detecting method for communication terminal (2013-08-27),

Title: Nobuyuki Washio: Pioneer in Sound Source Direction Estimation Technologies

Introduction

Nobuyuki Washio, an esteemed inventor based in Kawasaki, Japan, has made significant contributions to the field of audio technology. With an impressive portfolio of 26 patents, Washio's work revolves primarily around sound source direction estimation and utterance detection methods, showcasing his innovative spirit and technical acumen.

Latest Patents

Among his latest innovations, Washio has developed a storage medium that facilitates sound source direction estimation. This invention involves a non-transitory computer-readable storage medium that stores a program instructing a processor in a sound source direction estimation device. The process includes calculating sound pressure differences between voice data captured from two microphones, thereby enabling the estimation of the sound source direction. Furthermore, his advancements extend to voice recognition, allowing instructions to be executed based on the estimated sound direction. Another noteworthy patent focuses on a non-transitory computer-readable storage medium for an utterance detection program, which includes a processor that detects utterances with enhanced accuracy using sound pressure variations from two audio sources.

Career Highlights

Nobuyuki Washio's professional journey includes notable tenures at Fujitsu Corporation and Oki Electric Cable Co., Ltd., where he honed his skills and contributed to significant technological advancements. His expertise and innovative approach have facilitated the development of cutting-edge solutions in audio processing.

Collaborations

Throughout his career, Washio has collaborated with respected peers, including Masanao Suzuki and Chisato Shioda. These partnerships have allowed for the sharing of knowledge and expertise, further propelling advancements in audio technologies.

Conclusion

Nobuyuki Washio stands out as a leading inventor in the realm of sound technology. His continuous contributions have reshaped the landscape of audio recognition and direction estimation methods, reflecting his unwavering dedication to innovation. With each patent, he not only advances technology but also inspires future generations of inventors.

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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