Inventor · disambiguated record
Keiji Machida
Also filed as: MACHIDA KEIJI
3 granted patents·1 pending application·1 citations·filing 2004–2014
45Inventor score
Technology areasH04W
Files withNTT DOCOMO INC4
Top patents by PatentIndex Score
4 records- 0143US8055260B2Mobile communication system, local subscriber information management device, and communication information management methodNTT DOCOMO INC·Filed 2008·Granted Nov 8, 2011·0 cites·8 claims
- 0242US7336955B2Interconnection agreement determining system, apparatus, and methodNTT DOCOMO INC·Filed 2004·Granted Feb 26, 2008·1 cites·3 claims
- 0342US2009149177A1Mobile communication system, location registration period defining node, mobile terminal, and location registration method in mobile communicationNTT DOCOMO INC·Filed 2008·Application pending·0 cites
- 0438US9480041B2Location information registration method and mobile communication terminalNTT DOCOMO INC·Filed 2014·Granted Oct 25, 2016·0 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →