Vent structure and method of manufacturing the same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9616618
APP PUB NO 20100227543A1
SERIAL NO

12718461

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A vent structure includes: a first housing component having an opening portion for ventilation; a gas-permeable membrane that is attached to the first housing component to close the opening portion; and a laser welding portion that joins the first housing component with the gas-permeable membrane. The gas-permeable membrane includes a main body including a fluororesin film and a porous resin sheet that is laid on the main body. The porous resin sheet is located on the surface side of the vent structure. Both of the main body and the outer peripheral portion of the porous resin sheet that projects outwardly from the main body are fixed to the first housing component by the laser welding portion.

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Patent Owner(s)

Patent OwnerAddress
NITTO DENKO CORPORATION1-2 SHIMOHOZUMI 1-CHOME IBARAKI-SHI OSAKA 5678680 ?5678680

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Furuyama, Satoru Osaka, JP 28 302

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