Daisuke Yamamoto

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Osaka-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Device for blocking a flow passage using an inflatable bag
- Patent number 9,638,347
- Issue date May 2, 2017
- Waterworks Technology Development Organization Co., Ltd.
- Daisuke Yamamoto
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Device for Blocking Flow Passage Without Interrupting Flow
- Publication number 20160265680
- Publication date Sep 15, 2016
- Waterworks Technology Development Organization Co., Ltd.
- Daisuke Yamamoto
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...