Tokyo, Japan

Atsushi Yamaguchi

This inventor holds 84 USPTO granted patents and 7 published patent applications and 15 EPO patents, primarily in Audio Coding Technology (CPC class G10L19-09). Top assignees: Tdk Corporation, Ntt Docomo, Inc., Nec Corporation. Active years: 1988-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Atsushi Yamaguchi. Retrieved from https://idiyas.com/inventor/atsushi-yamaguchi-2tmpx7f8

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

USPTO Granted Patents = 84 

% Patents Active = 91.7

 

Average Co-Inventor Count = 3.1

ph-index = 10

Forward Citations = 470(Granted Patents)

Forward Citations (Not Self Cited) = 434(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Fujisawa, JP (1993)
  • Chigasaki, JP (1988 - 2001)
  • Chuo-ku, JP (2006)
  • Milpitas, CA (US) (2019 - 2020)
  • Tokyo, JP (1998 - 2023)

Company Filing History:


Years Active: 1988-2025

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Areas of Expertise:
Audio Decoding Device
Audio Encoding Device
Audio Signal Processing
Magnetic Head
Perpendicular Magnetic Recording
Thin Film Magnetic Head
Speech Decoder
Data Processing Device
Bunkering Plan
Schedule Management
Hollow Polymer Particles
Discontinuity Correction
84 patents (USPTO):Explore Patents

Title: Atsushi Yamaguchi: A Leader in Audio Innovation

Introduction

Atsushi Yamaguchi, a prominent inventor based in Tokyo, Japan, has made significant contributions to the field of audio technology. With an impressive portfolio of 84 patents, his work has focused primarily on enhancing audio encoding and decoding processes, resulting in improved quality and reduced distortion.

Latest Patents

Yamaguchi's most recent patents encompass a range of innovations, including an audio decoding device, audio encoding device, audio decoding method, audio encoding method, audio decoding program, and audio encoding program. These inventions aim to reduce distortion in frequency band components encoded with a minimal number of bits in the time domain, thereby enhancing audio quality. His audio decoding device efficiently decodes encoded audio signals, while his audio encoding device includes an audio encoding unit that encodes audio signals alongside a side information encoding unit that processes and encodes side information derived from a look-ahead signal.

Career Highlights

Throughout his career, Atsushi Yamaguchi has played a pivotal role at leading corporations such as TDK Corporation and NTT Docomo, Inc. His engineering expertise has propelled advancements in audio signal transmission and decoding, establishing him as a key player in the industry. His inventions not only enhance user experience but also contribute to the broader advancements in audio technology.

Collaborations

Yamaguchi has had the opportunity to collaborate with talented professionals in his field. Notably, his coworkers, Kei Kikuiri and Kei Hirata, have also contributed to various projects that align with his innovative pursuits, further enriching the research and development landscape in audio technology.

Conclusion

In conclusion, Atsushi Yamaguchi's dedication to improving audio technology through innovative patents has had a lasting impact on the industry. His work continues to pave the way for future developments in audio encoding and decoding, demonstrating the crucial role of inventors in advancing technology for better audio experiences.

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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