Inventor
SHIBAYAMA HIROAKI
JP12 patents
Patents
12 patentsUS6233002B1May 15, 2001
Earphone system with operability improved and terminal equipment system with the earphone system
NEC CORP26 citations91
US5317621AMay 31, 1994
Multi-address radio display pager
NEC CORP34 citations91
US5629688AMay 13, 1997
Radio selective calling receiver storing messages based on sending-group names
NEC CORP13 citations73
US5987534ANov 16, 1999
Radio selective paging receiver provided with an I/O memory card which can be easily upgraded to include new attributes
NEC CORP9 citations72
US5493280AFeb 20, 1996
Radio paging receiver
NEC CORP9 citations72
US5332994AJul 26, 1994
Radio pager with power-backup memory for storing uncompleted messages
NEC CORP19 citations72
US5590401ADec 31, 1996
Selective-calling receiver with battery switching upon CPU stop detection
NEC CORP6 citations62
US7299149B2Nov 20, 2007
Portable device with action shortcut function
NEC CORP4 citations61
US5802543ASep 1, 1998
Paging receiver employing memory banking system
NEC CORP4 citations61
US5493602AFeb 20, 1996
Paging receiver capable of avoiding disturbance raised on reception of an unnecessary message
NEC CORP2 citations61
US5323147AJun 21, 1994
Paging receiver with display for displaying reception state
NEC CORP0 citations51
US6600932B1Jul 29, 2003
System terminal for a wireless local loop
NEC CORP0 citations40