Yokohama, Japan

Yasushi Nagahama

This inventor holds 2 USPTO granted patents. Top assignees: Fujitsu Corporation, Futjitsu Limited. Active years: 1986.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasushi Nagahama. Retrieved from https://idiyas.com/inventor/yasushi-nagahama

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 = 5.0

ph-index = 2

Forward Citations = 22(Granted Patents)


Company Filing History:


Years Active: 1986

Loading Chart...
2 patents (USPTO):Explore Patents

Title: Yasushi Nagahama: Innovator in Switchboard Control Systems

Introduction

Yasushi Nagahama is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of telecommunications, particularly in switchboard control systems. With a total of 2 patents, his work has had a lasting impact on the industry.

Latest Patents

Nagahama's latest patents include a Switchboard Control System and a Centralized Supervisory System. The Switchboard Control System is designed to connect multiple switchboards to a time division exchange, allowing for efficient control and communication. It utilizes a common transmission line to transmit speech and control signals in a time-division-multiplexed manner. The system includes a position controller that multiplexes and separates signals, ensuring seamless communication between the switchboards and the exchange.

The Centralized Supervisory System operates within an automatic switching system that includes remote offices and a central office. This system connects two time-division switching systems via a multichannel line, allowing supervisory data to be centrally monitored. The data from the first supervisory unit is allocated to predetermined channels, facilitating efficient supervision and management.

Career Highlights

Throughout his career, Yasushi Nagahama has worked with prominent companies such as Fujitsu Limited and Fujitsu Corporation. His experience in these organizations has contributed to his expertise in telecommunications and innovation.

Collaborations

Nagahama has collaborated with notable coworkers, including Yoshiaki Matsuura and Hidemi Harada. These partnerships have likely enriched his work and led to advancements in his projects.

Conclusion

Yasushi Nagahama's contributions to telecommunications through his innovative patents demonstrate his expertise and commitment to advancing technology. His work continues to influence the industry and inspire future innovations.

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]
Loading…