Inventor
EBATA TOMOICHI
JP21 patents
⚠️ This page may combine multiple inventors who share the name “EBATA TOMOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
14 patentsUS6513061B1Jan 28, 2003
Proxy server selecting server and proxy server
HITACHI LTD497 citations98
US6292098B1Sep 18, 2001
Surveillance system and network system
HITACHI LTD110 citations98
US7142512B1Nov 28, 2006
Network measurement controlling system apparatus and method
HITACHI LTD69 citations97
US6973485B2Dec 6, 2005
Proxy server selecting server and proxy server
HITACHI LTD73 citations97
US6708209B1Mar 16, 2004
Network system having plural networks for performing quality guarantee among the networks having different policies
HITACHI LTD79 citations97
US6487542B2Nov 26, 2002
Method and apparatus for managing electronic money and storage for storing an electronic money management program
HITACHI LTD71 citations96
US6501377B2Dec 31, 2002
Surveillance system and network system
HITACHI LTD48 citations95
US6693533B2Feb 17, 2004
Method of controlling quality of communication among a plurality of clients over a network
HITACHI LTD23 citations92
US7945614B2May 17, 2011
Space-time communication system
HITACHI LTD17 citations83
US7292851B2Nov 6, 2007
Communication support system, information processing terminal, radiotelephone network, message server, and recording medium
HITACHI LTD5 citations72
US7076247B2Jul 11, 2006
Communication support system, information processing terminal, radiotelephone network, message server, and recording medium
HITACHI LTD2 citations61
US7994970B2Aug 9, 2011
Positioning system, position information transmitter, communication terminal, and control method of the positioning system
HITACHI LTD2 citations57
US12367535B2Jul 22, 2025
Community evaluation system, community evaluation method, behavior evaluation system, and behavior evaluation method
HITACHI LTD0 citations51
US7953408B2May 31, 2011
Message transmission system using an area address to transmit messages
HITACHI LTD0 citations51
KAWAGUCHI TAKAMASA
3 patentsUS8773309B2Jul 8, 2014
Positional information transmitter, positional information receiver, and position measuring system
KAWAGUCHI TAKAMASA6 citations68
US8299965B2Oct 30, 2012
Positioning system, position information transmitter, communication terminal, and control method of the positioning system
KAWAGUCHI TAKAMASA0 citations44
US9310489B2Apr 12, 2016
Positional information transmitter, communication terminal, and positioning system using position data
KAWAGUCHI TAKAMASA0 citations37