Syu KUMAGAI

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Nagoya-shi, Aichi-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Building controller and interphone system
- Patent number 10,659,617
- Issue date May 19, 2020
- AIPHONE CO., LTD.
- Kenji Yasukawa
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
BUILDING CONTROLLER AND INTERPHONE SYSTEM
- Publication number 20190342455
- Publication date Nov 7, 2019
- AIPHONE CO., LTD.
- Kenji YASUKAWA
- E04 - BUILDING
Information Patent Application
INTERCOM SYSTEM
- Publication number 20190116269
- Publication date Apr 18, 2019
- AIPHONE, LTD.
- Seiya YAMAKAWA
- H03 - BASIC ELECTRONIC CIRCUITRY