Inventor
OHISHI TAKUMI
JP4 patents
Patents
4 patentsUS6603975B1Aug 5, 2003
Communication control method of controlling data flow from internet protocol network to mobile terminal
HITACHI LTD166 citations97
US6839350B1Jan 4, 2005
Node apparatus and packet communication method for communicating with a mobile terminal
HITACHI LTD47 citations94
US7143187B1Nov 28, 2006
Packet communication control device and packet communication control method
HITACHI LTD43 citations92
US7123610B2Oct 17, 2006
Node apparatus and packet communication method for communicating with a mobile terminal
HITACHI LTD3 citations61