Akio KOGA

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Fukuoka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Call control device, call control method, and call control system
- Patent number 9,705,903
- Issue date Jul 11, 2017
- Fujitsu Limited
- Ryouji Nakamatsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephony system, connection control method, connection control dev...
- Patent number 8,832,307
- Issue date Sep 9, 2014
- Fujitsu Limited
- Tomoyuki Furutono
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication system and session establishment method
- Patent number 7,882,214
- Issue date Feb 1, 2011
- Fujitsu Limited
- Naohiro Ozaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
CALL CONTROL DEVICE, CALL CONTROL METHOD, AND CALL CONTROL SYSTEM
- Publication number 20160248789
- Publication date Aug 25, 2016
- Fujitsu Limited
- Ryouji NAKAMATSU
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TELEPHONY SYSTEM, CONNECTION CONTROL METHOD, CONNECTION CONTROL DEV...
- Publication number 20080043989
- Publication date Feb 21, 2008
- FUJITSU LIMITED
- Tomoyuki FURUTONO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Communication system and session establishment method
- Publication number 20060294242
- Publication date Dec 28, 2006
- FUJITSU LIMITED
- Naohiro Ozaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE