Inventor
NAGANO YOSHIHITO
JP7 patents
⚠️ This page may combine multiple inventors who share the name “NAGANO YOSHIHITO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOSHIBA KK
6 patentsUS6496576B2Dec 17, 2002
Digital key telephone system and extension terminal device thereof
TOSHIBA KK103 citations98
US6633631B2Oct 14, 2003
Digital key telephone system and extension terminal device thereof
TOSHIBA KK4 citations73
US6456705B1Sep 24, 2002
Digital key telephone system and extension terminal device thereof
TOSHIBA KK3 citations62
US6408060B2Jun 18, 2002
Digital key telephone system and extension terminal device thereof
TOSHIBA KK2 citations62
US6373924B2Apr 16, 2002
Digital key telephone system and extension terminal device thereof
TOSHIBA KK3 citations62
US6377671B2Apr 23, 2002
Digital key telephone system and extension terminal device thereof
TOSHIBA KK0 citations51