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For the Inventor, By the Inventor

Tokyo, Japan

Toshihiko Waku

This inventor holds 6 USPTO granted patents. Top assignees: Sony Corporation, Soshin Electric Co., Ltd.. Active years: 1976-1986.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshihiko Waku. Retrieved from https://idiyas.com/inventor/toshihiko-waku

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

USPTO Granted Patents = 6

% Patents Active = 100.0

Average Co-Inventor Count = 2.2

ph-index = 5

Forward Citations = 72(Granted Patents)


Location History:

  • Tokyo, JA (1976 - 1978)
  • Tokyo, JP (1986)

Company Filing History:

goldMedal6 out of 58,145 
 
Sony Corporation
 patents
silverMedal1 out of 32 
 
Soshin Electric Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1976-1986

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6 patents (USPTO):Explore Patents
1. 4600941 - Scrambling system for audio frequency signals (1986-07-15),
2. 4592085 - Speech-recognition method and apparatus for recognizing phonemes in a (1986-05-27),
3. 4096452 - Temperature compensated crystal oscillator (1978-06-20),
4. 4063201 - Printed circuit with inductively coupled printed coil elements and a (1977-12-13),
5. 3995233 - Temperature compensated variable frequency crystal oscillator (1976-11-30),
6. 3956719 - Variable band pass filter circuit (1976-05-11),

Title: The Innovations of Toshihiko Waku

Introduction

Toshihiko Waku is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of audio technology, holding a total of 6 patents. His work focuses on enhancing audio signal processing and recognition systems.

Latest Patents

One of Waku's latest patents is a scrambling system for audio frequency signals. This innovative system divides an audio signal into blocks, rearranging the frames on a timebase in a predetermined order for encoding. The encoded signal is then re-arranged back to its original order for decoding. This method ensures that even when transmitted through systems with timebase fluctuations, the audio signal remains undistorted and free from noise, providing high-quality and reliable scrambling communication. Another significant patent is a speech-recognition method and apparatus that recognizes phonemes by utilizing silence-phoneme and phoneme-phoneme transition spectral information. This approach enhances the accuracy of phoneme recognition by focusing on the transitions rather than the phonemes themselves.

Career Highlights

Waku has worked with prominent companies such as Sony Corporation and Soshin Electric Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in audio technology.

Collaborations

Throughout his career, Waku has collaborated with talented individuals, including Michimasa Komatsubara and Akito Satsuka. These partnerships have contributed to the advancement of his inventions and the overall progress in the field.

Conclusion

Toshihiko Waku's contributions to audio technology through his patents and collaborations highlight his innovative spirit and dedication to improving communication systems. His work continues to influence the industry and inspire future advancements.

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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