Inventor
SOTOYAMA MASUMI
JP3 patents
Patents
3 patentsUS5963550AOct 5, 1999
Packet transfer scheme and mobile communication system
NIPPON TELEGRAPH & TELEPHONE61 citations93
US5884165AMar 16, 1999
Mobile communication systems sharing a control channel
NIPPON TELEGRAPH & TELEPHONE9 citations71
US6031839AFeb 29, 2000
Data communication system and communication terminal equipment
NIPPON TELEGRAPH & TELEPHONE0 citations39