Kengo Nakata

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Nagoya-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Intercom system for a building or apartment house
- Patent number 6,671,360
- Issue date Dec 30, 2003
- Aiphone Co., Ltd.
- Hiroshi Sumiya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Intercom system for mansion/apartment house
- Publication number 20020176556
- Publication date Nov 28, 2002
- AIPHONE CO., LTD.
- Hiroshi Sumiya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE