Keiichi Yokoyama

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Chofu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electronic business card exchange system and method
- Patent number 8,005,904
- Issue date Aug 23, 2011
- Microsoft Corporation
- Keiichi Yokoyama
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Electronic Business Card Exchange System and Method
- Publication number 20090216839
- Publication date Aug 27, 2009
- Keiichi Yokoyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Information processing system, information processing apparatus, in...
- Publication number 20060002564
- Publication date Jan 5, 2006
- Kenichi Aihara
- G06 - COMPUTING CALCULATING COUNTING