Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
September 1, 2009
Patent Application Number
11628780
Date Filed
June 6, 2005
Patent Primary Examiner
Patent abstract
This invention relates to an injection molding method using an injection mold. The method comprises (1) a molten resin injection step for injecting the molten resin from a gate into a cavity, (2) a pressure-keeping step for continuously applying pressure from the gate after the molten resin injection step, and (3) a fluid injection step for injecting a fluid toward the back surface of the molded product. The pressure-keeping step and the fluid injection step are simultaneously executed.
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