Tokyo, Japan

Seiichiro Shigaki

This inventor holds 4 USPTO granted patents. Top assignee: Nec Corporation. Active years: 1986-1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Seiichiro Shigaki. Retrieved from https://idiyas.com/inventor/seiichiro-shigaki

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


% Patents Active = 100.0

Average Co-Inventor Count = 1.8

ph-index = 3

Forward Citations = 32(Granted Patents)


Company Filing History:


Years Active: 1986-1996

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4 patents (USPTO):Explore Patents

Title: Seiichiro Shigaki: Innovator in Digital Signal Processing

Introduction

Seiichiro Shigaki is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of digital signal processing, holding a total of 4 patents. His work focuses on enhancing the efficiency and functionality of various electronic systems.

Latest Patents

One of his latest patents is a phase comparator that integrates a loop filter and a voltage-controlled oscillator (VCO) to form a phase-locked loop (PLL). This invention synchronizes a CMI code with a VCO clock, generating phase difference signals essential for the PLL's operation. Another notable patent is a DCME unit designed to process a wide variety of input information. This unit assigns input digital signals to multiple output channels based on priority, ensuring efficient encoding and transmission of data.

Career Highlights

Seiichiro Shigaki is currently employed at NEC Corporation, where he continues to innovate in the field of digital communications. His work has been instrumental in advancing technologies that improve data transmission and processing capabilities.

Collaborations

Throughout his career, Shigaki has collaborated with notable colleagues, including Minoru Matsuoka and Osamu Ookoshi. These partnerships have fostered a creative environment that encourages the development of cutting-edge technologies.

Conclusion

Seiichiro Shigaki's contributions to digital signal processing and his innovative patents reflect his dedication to advancing technology. His work at NEC Corporation and collaborations with esteemed colleagues further highlight his impact in the field.

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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