DIAPHRAGM VALVE, FLUID CONTROL DEVICE, SEMICONDUCTOR MANUFACTURING APPARATUS, AND SEMICONDUCTOR MANUFACTURING METHOD

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United States of America Patent

APP PUB NO 20170130848A1
SERIAL NO

15322553

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Abstract

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A flat portion of a bottom surface of a depression of a body is provided with a spot facing so as to include a portion of a fluid outflow channel, which portion is open to the bottom surface of the depression.

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Patent Owner(s)

Patent OwnerAddress
FUJIKIN INCORPORATED3-2 ITACHIBORI 2-CHOME NISHI-KU OSAKA-SHI OSAKA 550-0012

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Shikata, Izuru Osaka-shi, JP 23 578
Watanabe, Kazunari Osaka-shi, JP 55 399

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