Inventor
YOKOYAMA TSUTOMU
JP7 patents
⚠️ This page may combine multiple inventors who share the name “YOKOYAMA TSUTOMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NTT DOCOMO INC
5 patentsUS7142847B2Nov 28, 2006
Mobile communication system, resource switching method thereof, network control apparatus included therein, same and network control method
NTT DOCOMO INC50 citations92
US7257394B2Aug 14, 2007
Mobile communications system, mobile communications network controller, mobile communications terminal, and method of controlling mobile communications network
NTT DOCOMO INC7 citations72
US7835756B2Nov 16, 2010
Mobile communications system, mobile communications network controller, mobile communications terminal, and method of controlling mobile communications network
NTT DOCOMO INC1 citations61
US7454196B2Nov 18, 2008
Mobile communications system, mobile communications network controller, mobile communications terminal, and method of controlling mobile communications network
NTT DOCOMO INC1 citations61
US7340245B2Mar 4, 2008
Mobile communications system, mobile communications network controller, mobile communications terminal, and method of controlling mobile communications network
NTT DOCOMO INC3 citations61