Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hiroshi Kodama0
Hiroshi Wakabayashi0
Yoshikazu Kaneko0
Date of Patent
July 6, 2010
0Patent Application Number
122051220
Date Filed
September 5, 2008
0Patent Primary Examiner
Patent abstract
A manufacturing method of a pressure sensor that includes a pressure detector having a bottomed cylindrical member with a bottom including a thin-wall portion and a strain detecting mechanism provided on one side of the bottom for detecting a strain of the bottom and a pressure-introducing joint for introducing the fluid to be measured into the bottomed cylindrical member is provided. The method includes: first welding for butt-welding an end of the cylindrical portion of the bottomed cylindrical member and an end of the pressure-introducing joint; and second welding for welding the pressure-introducing joint in parallel to a first weld bead formed by the first welding.
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