Tetsuya Tomizawa

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Nakano-ku, Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Damping device and vibration control apparatus for structure
- Patent number 9,416,533
- Issue date Aug 16, 2016
- Osamu Takahashi
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
DAMPING DEVICE AND VIBRATION CONTROL APPARATUS FOR STRUCTURE
- Publication number 20150345134
- Publication date Dec 3, 2015
- KOZO KEIKAKU ENGINEERING INC.
- Osamu Takahashi
- E04 - BUILDING