Inventor
WATANUKI TATSUYA
JP21 patents
⚠️ This page may combine multiple inventors who share the name “WATANUKI TATSUYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
18 patentsUS6853639B1Feb 8, 2005
Information relay device and method with multicast protocol conversion function and information network system using the same
HITACHI LTD87 citations98
US6172986B1Jan 9, 2001
Mobile node, mobile agent and network system
HITACHI LTD200 citations98
US6578088B2Jun 10, 2003
Automatic address distributing system
HITACHI LTD46 citations94
US6219715B1Apr 17, 2001
Automatic address distributing system
HITACHI LTD79 citations94
US7643447B2Jan 5, 2010
Mobile node, mobile agent and network system
HITACHI LTD21 citations92
US7177310B2Feb 13, 2007
Network connection apparatus
HITACHI LTD28 citations92
US6950431B1Sep 27, 2005
Network relay apparatus
HITACHI LTD42 citations92
US6907470B2Jun 14, 2005
Communication apparatus for routing or discarding a packet sent from a user terminal
HITACHI LTD42 citations92
US5699345ADec 16, 1997
Congestion control method in asynchronous transfer mode local area network
HITACHI LTD30 citations91
US6877105B1Apr 5, 2005
Method for sending notice of failure detection
HITACHI LTD16 citations84
US7453905B2Nov 18, 2008
Mobile node, mobile agent and network system
HITACHI LTD4 citations73
US6977885B1Dec 20, 2005
Packet transmitting and receiving method and apparatus therefor
HITACHI LTD7 citations73
US6888845B2May 3, 2005
Mobile node, mobile agent and network system
HITACHI LTD10 citations73
US6868089B1Mar 15, 2005
Mobile node, mobile agent-and network system
HITACHI LTD5 citations73
US7046624B1May 16, 2006
Network apparatus and a method for communicating by using the network apparatus
HITACHI LTD6 citations62
US6985496B2Jan 10, 2006
Communication management device and communication management method
HITACHI LTD4 citations62
US6785293B2Aug 31, 2004
Mobile node, mobile agent and network system
HITACHI LTD1 citations62
US6724775B2Apr 20, 2004
Mobile node, mobile agent and network system
HITACHI LTD3 citations62