Rikiya Watanabe

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Patents Grantslast 30 patents

Information Patent Grant
Network management device and network management system
- Patent number 9,948,388
- Issue date Apr 17, 2018
- Fujitsu Limited
- Rikiya Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and device for designing chromatic dispersion compensation
- Patent number 8,775,135
- Issue date Jul 8, 2014
- Fujitsu Limited
- Rikiya Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication system using initial likelihood information for perfo...
- Patent number 8,611,446
- Issue date Dec 17, 2013
- Fujitsu Limited
- Taizo Maeda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplifier
- Patent number 6,483,636
- Issue date Nov 19, 2002
- Fujitsu Limited
- Yasushi Sugaya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
NETWORK DEVICE AND MODEL LEARNING METHOD
- Publication number 20250039071
- Publication date Jan 30, 2025
- FUJITSU LIMITED
- Katsunori SETO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION DEVICE AND OPTICAL TRANSMISSION METHOD
- Publication number 20180351650
- Publication date Dec 6, 2018
- Fujitsu Limited
- Takuma Togo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
NETWORK MANAGEMENT DEVICE AND NETWORK MANAGEMENT SYSTEM
- Publication number 20170155446
- Publication date Jun 1, 2017
- Fujitsu Limited
- Rikiya Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND DEVICE FOR DESIGNING CHROMATIC DISPERSION COMPENSATION
- Publication number 20120123749
- Publication date May 17, 2012
- Fujitsu Limited
- Rikiya WATANABE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
COMMUNICATION SYSTEM
- Publication number 20100128809
- Publication date May 27, 2010
- FUJITSU LIMITED
- Taizo Maeda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE