Inventor · disambiguated record

Shinji Kumataka

Also filed as: KUMATAKA SHINJI

4 granted patents·163 citations·filing 1991–1994

81Inventor score

Technology areasH04W

Files withNEC CORP4

Top patents by PatentIndex Score

4 records

0152US5454028ACordless key telephone system having zone switching functionNEC CORP·Filed 1994·Granted Sep 26, 1995·45 cites·2 claims
0252US5239572ACordless key telephone system capable of quickly answering incoming callsNEC CORP·Filed 1991·Granted Aug 24, 1993·48 cites·6 claims
0350US5365572ACordless key telephone system with multiple tenant facilityNEC CORP·Filed 1992·Granted Nov 15, 1994·40 cites·8 claims
0444US5283817ACordless key telephone system for covering multiple service areas having exclusively assigned control channelsNEC CORP·Filed 1991·Granted Feb 1, 1994·30 cites·5 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →