Hachioji, Japan

Takeaki Yamagata

This inventor holds 1 USPTO granted patent. Top assignees: Hitachi, Ltd., Japanese National Railways. Active years: 1976.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takeaki Yamagata. Retrieved from https://idiyas.com/inventor/takeaki-yamagata

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 = 5.0

ph-index = 1


Company Filing History:


Years Active: 1976

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1 patent (USPTO):Explore Patents

Title: Takeaki Yamagata: Innovator in Busy Detection Technology

Introduction

Takeaki Yamagata is a notable inventor based in Hachioji, Japan. He is recognized for his contributions to the field of telecommunications, particularly in the area of busy detection technology. His innovative approach has led to the development of a significant patent that enhances the efficiency of line concentrators and exchanges.

Latest Patents

Yamagata holds a patent for a "Method of and apparatus for all busy detection." This invention provides a method and apparatus for detecting the all make busy state of a line concentrator or an exchange. The technology involves dividing outgoing circuits into multiple groups, specifying at least one circuit from each group, and scanning these circuits to detect their busy states. This process allows for the detection of the busy states of all groups within one cycle of scanning, thereby improving the functionality of telecommunications systems.

Career Highlights

Throughout his career, Takeaki Yamagata has worked with prominent organizations, including Hitachi, Ltd. and Japanese National Railways. His experience in these companies has contributed to his expertise in telecommunications and innovation.

Collaborations

Yamagata has collaborated with notable individuals in his field, including Yoshiro Hayashi and Akio Otani. These partnerships have likely influenced his work and contributed to the advancements in busy detection technology.

Conclusion

Takeaki Yamagata's contributions to the field of telecommunications through his innovative patent demonstrate his significant role as an inventor. His work continues to impact the efficiency of communication systems 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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