Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Makoto Takeishi0
Katsumi Ichitani0
Date of Patent
March 17, 2009
Patent Application Number
10310050
Date Filed
December 5, 2002
Patent Primary Examiner
Patent abstract
Provided is a quenching method capable of producing quenched articles having little distortion and having a desired hardness. The quenching method with a coolant is specifically so controlled that the surface of the quenching bath is kept under pressure all the time throughout the step of cooling the articles being processed therein.
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