Akihiko Kitanaka

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Shiga-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Light emitting keyed keyboard
- Patent number 6,648,530
- Issue date Nov 18, 2003
- International Business Machines Corporation
- Nobuyuki Kamei
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Light emitting keyed keyboard
- Publication number 20020122683
- Publication date Sep 5, 2002
- International Business Machines Corporation
- Nobuyuki Kamei
- G06 - COMPUTING CALCULATING COUNTING