Yuichi Yamagishi

Title: Yuichi Yamagishi: Packet Transmission Innovations

Introduction

Yuichi Yamagishi is an inventor based in Kawasaki, Japan, whose work focuses on packet transmission and communication systems. He is associated with Fujitsu Corporation and is credited with 3 patents.

Latest Patents

Yamagishi’s listed patents address methods and devices for managing packet traffic and network bandwidth.

“Packet transmission method, packet transmission apparatus, and storage medium” describes a method for handling packets according to service classes. It determines each class’s maximum transfer bandwidth and current traffic level, then sends a packet through its assigned class when capacity permits. If that class has reached its maximum, the method checks whether another service class has available bandwidth and may transfer the packet through that class instead.

“Packet transmission device, signal terminating device, communication system, and communication method” concerns bandwidth control for encapsulated packets carrying user signals. The device stores source addresses associated with signal-type identifiers, calculates a bandwidth-control value using the number of stored addresses and the guaranteed bandwidth for each identifier, and transmits packets to a network under that control.

Career Highlights

Yamagishi’s patent work reflects an emphasis on efficient packet transmission, service-class management, and bandwidth allocation. These approaches are relevant to communication networks that must handle traffic reliably while making effective use of available capacity.

Collaborations

Yamagishi’s listed coworkers include Kiyoshi Miyano and Yoshinari Akakura. His association with Fujitsu Corporation places his work within a company active in communications and information technology.

Conclusion

Yuichi Yamagishi’s inventions address practical challenges in network traffic management, including service-class selection and bandwidth control for encapsulated packets.