Inventor · disambiguated record
Yoshihito Nagano
Also filed as: NAGANO YOSHIHITO
7 granted patents·1 pending application·138 citations·filing 1997–2006
85Inventor score
Top patents by PatentIndex Score
8 records- 0196US6496576B2Digital key telephone system and extension terminal device thereofTOSHIBA KK·Filed 2001·Granted Dec 17, 2002·103 cites·4 claims
- 0268US6263061B1Digital button telephone system and extension terminal for the sameTOKYO SHIBAURA ELECTRIC CO·Filed 1997·Granted Jul 17, 2001·23 cites·11 claims
- 0366US6633631B2Digital key telephone system and extension terminal device thereofTOSHIBA KK·Filed 2001·Granted Oct 14, 2003·4 cites·3 claims
- 0462US6373924B2Digital key telephone system and extension terminal device thereofTOSHIBA KK·Filed 2001·Granted Apr 16, 2002·3 cites·1 claims
- 0558US6456705B1Digital key telephone system and extension terminal device thereofTOSHIBA KK·Filed 2001·Granted Sep 24, 2002·3 cites·2 claims
- 0658US6408060B2Digital key telephone system and extension terminal device thereofTOSHIBA KK·Filed 2001·Granted Jun 18, 2002·2 cites·6 claims
- 0745US2007041520A1Exchange system, telephone exchange apparatus, and voice message notification methodTOSHIBA KK·Filed 2006·Application pending·0 cites
- 0844US6377671B2Digital key telephone system and extension terminal device thereofTOSHIBA KK·Filed 2001·Granted Apr 23, 2002·0 cites·1 claims
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