Seiji Yamashita

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Miyazaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Butterfly valve seat ring and butterfly valve provided with same
- Patent number 10,781,925
- Issue date Sep 22, 2020
- ASAHI YUKIZAI CORPORATION
- Yukihisa Yamamoto
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
BUTTERFLY VALVE SEAT RING AND BUTTERFLY VALVE PROVIDED WITH SAME
- Publication number 20190331230
- Publication date Oct 31, 2019
- ASAHI YUKIZAI CORPORATION
- Yukihisa YAMAMOTO
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
BALL CHECK VALVE
- Publication number 20120048401
- Publication date Mar 1, 2012
- Seiji Yamashita
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...