Inventor
MURAKAMI KAZUTAKA
US18 patents
⚠️ This page may combine multiple inventors who share the name “MURAKAMI KAZUTAKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ALCATEL LUCENT USA INC
9 patentsUS7610328B2Oct 27, 2009
Methods and apparatus for a multi-technology subscriber base for global roaming
ALCATEL LUCENT USA INC264 citations98
US7522632B2Apr 21, 2009
Multiple-protocol home location register and method of use
ALCATEL LUCENT USA INC39 citations91
US7643626B2Jan 5, 2010
Method for deploying, provisioning and storing initial filter criteria
ALCATEL LUCENT USA INC14 citations83
US7558254B2Jul 7, 2009
Method and apparatus for call routing via gateway brokering
ALCATEL LUCENT USA INC12 citations83
US7633896B2Dec 15, 2009
Apparatus and method for enabling optimized gateway selection for inter-working between circuit-switched and internet telephony
ALCATEL LUCENT USA INC11 citations81
US7873941B2Jan 18, 2011
Manager component that causes first software component to obtain information from second software component
ALCATEL LUCENT USA INC2 citations61
US7822416B2Oct 26, 2010
Methods and systems for allowing global roaming between devices supported by different protocols
ALCATEL LUCENT USA INC5 citations55
US10367707B2Jul 30, 2019
Diagnosing causes of application layer interruptions in packet-switched voice applications
ALCATEL LUCENT USA INC0 citations48
US7756122B2Jul 13, 2010
Methods and devices for providing seamless global roaming using an all-IP network
ALCATEL LUCENT USA INC0 citations33
LUCENT TECHNOLOGIES INC
8 patentsUS6763007B1Jul 13, 2004
Two phase local mobility scheme for wireless access to packet based networks
LUCENT TECHNOLOGIES INC208 citations98
US6654359B1Nov 25, 2003
Wireless access to packet-based networks
LUCENT TECHNOLOGIES INC228 citations98
US7085260B2Aug 1, 2006
Internet protocol based wireless call processing
LUCENT TECHNOLOGIES INC178 citations97
US6192250B1Feb 20, 2001
Cluster mobile switching center
LUCENT TECHNOLOGIES INC91 citations95
US7239618B1Jul 3, 2007
Single phase local mobility scheme for wireless access to packet-based networks
LUCENT TECHNOLOGIES INC55 citations92
US5953331ASep 14, 1999
Wireless packet system for efficient wide area bandwidth utilization
LUCENT TECHNOLOGIES INC36 citations91
US7426265B2Sep 16, 2008
System and method for generalized call forwarding between telephone terminals
LUCENT TECHNOLOGIES INC45 citations90
US6298039B1Oct 2, 2001
High availability distributed call processing method and apparatus
LUCENT TECHNOLOGIES INC18 citations83