Chigasaki, Japan

Toyokazu Yanagimichi

This inventor holds 2 USPTO granted patents and 1 published patent application. Top assignee: Matsushita Electric Industrial Co., Ltd.. Active years: 1992-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toyokazu Yanagimichi. Retrieved from https://idiyas.com/inventor/toyokazu-yanagimichi

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

Calculating rank
USPTO Granted Patents = 2 

% Patents Active = 100.0

Average Co-Inventor Count = 7.0

ph-index = 2

Forward Citations = 40(Granted Patents)


Company Filing History:


Years Active: 1992-1993

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2 patents (USPTO):Explore Patents

Title: Toyokazu Yanagimichi: Innovator in Cable Television Technology

Introduction

Toyokazu Yanagimichi is a notable inventor based in Chigasaki, Japan. He has made significant contributions to the field of cable television technology, holding 2 patents that enhance the functionality and efficiency of CATV systems.

Latest Patents

Yanagimichi's latest patents include a key signal conversion device for CATV systems. This device is designed to handle multiple scrambling processes, allowing for the extraction of key signals necessary for unscrambling television signals. The device features a first detecting circuit that identifies synchronizing signals, a gate circuit that extracts key signals, and an inserting circuit that superimposes the key signal onto nonscrambled television signals during specific intervals. Another patent focuses on a cable television system that suppresses sync information in amplitude during scrambling. It incorporates sync width information signals and key data into the television signal, which are then recovered by the receiver to extract key data from scrambled video information.

Career Highlights

Yanagimichi is associated with Matsushita Electric Industrial Co., Ltd., a company renowned for its innovations in electronics and technology. His work has significantly impacted the development of cable television systems, making them more efficient and user-friendly.

Collaborations

Throughout his career, Yanagimichi has collaborated with notable coworkers such as Harumasa Kajita and Tetsuo Kariya. These collaborations have contributed to the advancement of technology in the cable television sector.

Conclusion

Toyokazu Yanagimichi's contributions to cable television technology through his innovative patents have made a lasting impact on the industry. His work continues to influence the way we experience television today.

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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