Abstract: A neutralization apparatus comprising an ion generation element employing a novel, high efficiency discharge system capable of generating high concentration ions with a low ozone concentration. In the neutralization apparatus, the ion generation element is a minute electrode ion generation element consisting of a discharge electrode and an induction electrode having minute protrusions arranged in one direction on a plane, and a thin dielectric film sandwiched between them.

Abstract: The object of the present invention is to provide a nozzle gate opening and closing timing adjusting mechanism used for multiple gate injection molding machine.

Abstract: An ion generating element capable of cost reduction and space saving while exhibiting a high generation efficiency of positive ions and negative ions and stabilized generation capacity with less variation, and an ion generator and a neutralizer employing it. The ion generating element comprises a dielectric body having at least two faces, at least two discharge electrodes arranged on the at least two faces of the dielectric body, and an induction electrode arranged in the dielectric body and subjected to the action of the at least two discharge electrodes and is characterized in that positive ions and negative ions are generated on the body, and ions are generated from the at least two faces of the dielectric body through discharge generated because of the potential difference between the discharge electrode of the ion generating element and the induction electrode when a drive voltage is applied between them.

Abstract: The present invention is relating to an ion generator and an ionizer, in which the ion generator can obtain stable ion generation even if the electrode and the power supply slightly change, satisfies voltage and frequency conditions for realizing an ozone concentration less than 50 ppb as an allowable concentration.

Abstract: An ion generating element capable of cost reduction and space saving while exhibiting a high generation efficiency of positive ions and negative ions and stabilized generation capacity with less variation, and an ion generator and a neutralizer employing it. The ion generating element comprises a dielectric body having at least two faces, at least two discharge electrodes arranged on the at least two faces of the dielectric body, and an induction electrode arranged in the dielectric body and subjected to the action of the at least two discharge electrodes and is characterized in that positive ions and negative ions are generated on the body, and ions are generated from the at least two faces of the dielectric body through discharge generated because of the potential difference between the discharge electrode of the ion generating element and the induction electrode when a drive voltage is applied between them.

Abstract: The present invention provides a valve nozzle that can restrain property changes of an injecting melted resin by more strictly controlling the temperature of the injecting melted resin, wherein in the internal space or the rear space of a valve nozzle main body, a gate opening and closing mechanism is disposed which includes a torpedo provided with a coolant channel, a piston including a head portion, a shaft portion that is continued from the head portion and disposed in the internal space of the torpedo by being provided with a gap to serve as a resin flow channel on its outer circumferential surface, a tapered surface that is connected to the rear end of the shaft portion and serves as a surface for receiving the pressure of a resin in the resin flow channel, and a coil spring that presses the rear end part of the piston toward a gate, and when the pressure of the melted resin is at a predetermined value or less, the piston is pressed by the coil spring toward the gate to close the resin flow channel, and

Abstract: The valve nozzle according to the invention is constructed so that, in the internal space of a valve nozzle main body, a gate opening and closing mechanism is disposed in which a piston having a head part and a shaft part, a torpedo that is disposed in the internal space of the nozzle head and slidably supports the piston and guides the piston, and is provided with, on its outer circumferential surface, concaved grooves that are twisted with respect to a resin injection direction and serve as a plurality of wound resin flow channels, a coil spring that presses the piston in the direction toward a gate, and a cover that closes the rear end of the torpedo and serves as a spring receiving part of the coil spring are integrally assembled, and when the resin pressure is at a predetermined value or less, the entire circumference of the circular section of the head part of the piston comes into contact with the inner wall of the gate of the nozzle head to close the resin flow channels, and when the resin pressure be

Abstract: A method for injection molding of resin or rubber at an insert positioned in a lower mold injects and fills melted resin or rubber into a cavity of an upper mold through a gate. The lower metal mold has a flexible supporting member supporting the mold insert. The supporting member is vertically movable in a recess formed on the upper surface of the lower mold. The underside thereof is supported by the tip ends of shafts of pressing members that operate independently. The movable supporting member is moved while being pressed by the respective shafts of the pressing members to the upper mold at a plurality of positions. The resin or rubber is molded when the upper surface of the insert uniformly contacts the underside of the upper mold by bending of the movable supporting member.

Abstract: The present invention relates to an in-mold gate opening and closing mechanism in which it is easy to adjust the gate balance, more specially, in an in-mold gate opening and closing mechanism, in which a gate pin disposed in a gate in a mold is moved in line with resin pressure in the gate, the gate is opened by the gate pin escaping from the gate when the resin pressure exceeds an appointed pressure level when filling resin, and the gate is closed by the gate pin moving the gate direction when the resin pressure is lowered from the appointed pressure level when a filling of the resin is completed, wherein the gate is opened by a gate pin escaping from the gate when the resin pressure exceeds a pressing force of a spring adjusted by a mechanism for adjusting the spring pressure when filling resin.

Abstract: An insert molding method and mold has an upper mold and a lower mold disposed to oppose each other. The cavity at the upper mold side is filled with molten resin or rubber material injected through a gate to perform injection molding of the resin or rubber around an insert set at the lower mold side. A movable supporting member sets the insert, and is fitted in a recessed part formed on the upper face of the lower mold. The position of the center of gravity at the lower face of the movable supporting member is supported and pressed towards the upper mold side by the tip of a shaft of a pressing mechanism. A gap is between the side face part of the recessed part and the side face part of the movable supporting member to cause the movable supporting member to tilt about the point at which the movable supporting member is pressed and supported by the shaft inside the recessed part so that the upper face of the insert will be in uniform surface contact with the lower face of the upper mold.

Abstract: The invention relates to a valve nozzle used for a molding machine of synthetic resin and is characterized in that a gate opening and closing mechanism consisting of a spool having a head portion at which a circular cross-sectioned part and a notched part are formed, a shaft portion and an arrow feather shaped projection, and a coil spring which presses the abovementioned spool in the direction opposite to the gate, is disposed in the interior space of a nozzle head attached to the tip end of a nozzle holder via a screw mechanism, when resin pressure is less than a certain fixed level, the abovementioned spool is pressed by the abovementioned coil spring in the direction opposite to the gate and the entire periphery of the circular cross-sectioned portion of the head portion of the spool is brought into contact with the interior wall of the gate of the nozzle head to cause the resin flow path to be closed, and when the resin pressure becomes higher than a certain fixed level, the head portion of the abovement