Inventor
MACHIDA KEIJI
JP3 patents
Patents
3 patentsUS7336955B2Feb 26, 2008
Interconnection agreement determining system, apparatus, and method
NTT DOCOMO INC1 citations43
US8055260B2Nov 8, 2011
Mobile communication system, local subscriber information management device, and communication information management method
NTT DOCOMO INC0 citations37
US9480041B2Oct 25, 2016
Location information registration method and mobile communication terminal
NTT DOCOMO INC0 citations33