Keiji MACHIDA

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Yokohama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Location information registration method and mobile communication t...
- Patent number 9,480,041
- Issue date Oct 25, 2016
- NTT DoCoMo, Inc.
- Keiji Machida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Mobile communication system, local subscriber information managemen...
- Patent number 8,055,260
- Issue date Nov 8, 2011
- NTT DoCoMo, Inc.
- Keiji Machida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Interconnection agreement determining system, apparatus, and method
- Patent number 7,336,955
- Issue date Feb 26, 2008
- NTT DoCoMo, Inc.
- Keiji Machida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
LOCATION INFORMATION REGISTRATION METHOD AND MOBILE COMMUNICATION T...
- Publication number 20160150495
- Publication date May 26, 2016
- NTT DoCoMo, Inc.
- Keiji MACHIDA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MOBILE COMMUNICATION SYSTEM, LOCATION REGISTRATION PERIOD DEFINING...
- Publication number 20090149177
- Publication date Jun 11, 2009
- NTT DoCoMo, Inc.
- Keiji MACHIDA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MOBILE COMMUNICATION SYSTEM, LOCAL SUBSCRIBER INFORMATION MANAGEMEN...
- Publication number 20090069010
- Publication date Mar 12, 2009
- NTT DoCoMo, Inc.
- Keiji MACHIDA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Interconnection agreement determining system, apparatus, and method
- Publication number 20050143076
- Publication date Jun 30, 2005
- NTT DoCoMo, Inc.
- Keiji Machida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE