Yuji IKEGAMI

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Kawasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Polarization variation monitoring system and polarization variation...
- Patent number 12,047,115
- Issue date Jul 23, 2024
- Fujitsu Limited
- Ichiro Yokokura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Device and method for estimating communication quality
- Patent number 11,595,139
- Issue date Feb 28, 2023
- Fujitsu Limited
- Junichi Sugiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission device and optical transmission system
- Patent number 11,588,550
- Issue date Feb 21, 2023
- Fujitsu Limited
- Junichi Sugiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Packet transmission device, memory control circuit, and packet tran...
- Patent number 8,737,227
- Issue date May 27, 2014
- Fujitsu Limited
- Akihiro Hata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
POLARIZATION VARIATION MONITORING SYSTEM AND POLARIZATION VARIATION...
- Publication number 20230087839
- Publication date Mar 23, 2023
- Fujitsu Limited
- Ichiro YOKOKURA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION DEVICE AND OPTICAL TRANSMISSION SYSTEM
- Publication number 20220278747
- Publication date Sep 1, 2022
- Fujitsu Limited
- Junichi Sugiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DEVICE AND METHOD FOR ESTIMATING COMMUNICATION QUALITY
- Publication number 20220231771
- Publication date Jul 21, 2022
- Fujitsu Limited
- Junichi Sugiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PACKET TRANSMISSION DEVICE, MEMORY CONTROL CIRCUIT, AND PACKET TRAN...
- Publication number 20130028082
- Publication date Jan 31, 2013
- Fujitsu Limited
- Akihiro HATA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE