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US Patent 8483554 Electronic device and imaging device

Patent 8483554 was granted and assigned to Panasonic on July, 2013 by the United States Patent and Trademark Office.

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Patent abstractTimelineTable: Further ResourcesReferences
Is a
Patent
Patent
1

Patent attributes

Current Assignee
Panasonic
Panasonic
1
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
84835541
Patent Inventor Names
Hirotsugu Matsuura1
Aya Takimoto1
Yuji Tominaga1
Date of Patent
July 9, 2013
1
Patent Application Number
132813821
Date Filed
October 25, 2011
1
Patent Citations Received
‌
US Patent 11921010 Display assemblies with differential pressure sensors
2
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US Patent 11965804 Display assemblies with differential pressure sensors
3
Patent Primary Examiner
‌
Clayton E. LaBalle
1
Patent abstract

An electronic device is provided that includes a housing, a waterproof air-permeable membrane, a door, an air pressure gauge and a watertightness detector. The housing defines an opening and includes an air vent. The waterproof air-permeable membrane blocks off the air vent. The door is shiftably coupled to the housing and movable between a first position that uncovers the opening and a second position that covers the opening. The door and the housing form a watertight structure when the door is in the second position. The air pressure gauge is disposed inside the watertight structure. The watertightness detector is configured to determine whether the housing and the door have maintained a watertight state based on changes in the air pressure inside the watertight structure when the door moves from the first to the second position. The changes in the air pressure are measured by the air pressure gauge.

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