Shinagawa, Japan

Eiichi Osawa

This inventor holds 2 USPTO granted patents. Top assignee: Sony Corporation. Active years: 1987-1989.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Eiichi Osawa. Retrieved from https://idiyas.com/inventor/eiichi-osawa-zdrn56tc

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 = 2.9

ph-index = 2

Forward Citations = 52(Granted Patents)


Location History:

  • Shinigawa, JP (1987)
  • Kanagawa, JP (1989)

Company Filing History:


Years Active: 1987-1989

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2 patents (USPTO):Explore Patents

Title: Eiichi Osawa: Inventor in Digital Communications

Introduction

Eiichi Osawa is an inventor associated with Shinagawa, Japan, and Sony Corporation. His patent work includes inventions in digital communications and information recording. He is credited with 2 patents.

Latest Patents

- **Viterbi Decoder with Detection of Synchronous or Asynchronous States.** This invention concerns decoding convolutional codes. It normalizes branch metrics, calculates state metrics from them, and determines synchronization or asynchronization based on how the state metrics increase. The approach is designed to decode original data reliably using simple hardware, without being affected by the communication path’s signal-to-noise ratio.

- **Method and Apparatus for Recording a Digital Information Signal.** This patent concerns methods and equipment for recording digital information signals.

Career Highlights

Osawa’s listed patents reflect work on both digital signal decoding and recording. His association with Sony Corporation connects his inventive activity with a company active in electronics and communications technology.

Collaborations

Osawa’s listed coworkers include Masato Tanaka and Mamoru Yoshizawa.

Conclusion

Eiichi Osawa’s patent record highlights contributions to digital communications, including convolutional-code decoding and digital information recording.

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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