Patents by Inventor Mamoru Miyagawa

Mamoru Miyagawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7984747
    Abstract: A control method for supplying an inert gas from an inert gas source to a storage container for a molten metal through a gas feed path provided with a flow sensor for monitoring the gas flow rate and a solenoid valve for opening and closing the gas feed path for use with metal molding. The control method includes steps of turning off the solenoid valve if a temperature of the storage container is lower than a preset temperature, and turning off the flow sensor; otherwise turning on the solenoid valve and turning on the flow sensor; and stopping the output of the heater of the storage container when the gas flow rate is lower than the preset amount; these steps are controlled in accordance with a command signal from a controller.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: July 26, 2011
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Yasuhiko Takeuchi, Mamoru Miyagawa, Ikuo Uwadaira
  • Patent number: 7926545
    Abstract: Leakage of molten metal material from between a cylinder body having a tight-fitting liner and a nozzle member of an injection apparatus is prevented through the interaction of the nozzle member and a coupling ring with the liner.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: April 19, 2011
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Toshiyasu Koda, Mamoru Miyagawa, Yasuhiko Takeuchi
  • Patent number: 7926546
    Abstract: A device for melting, storing, and feeding a metal material is provided which can store a large amount of molten metal material corresponding to molding cycles with a compact configuration, using barrels to melt bar-shaped metal materials and a tank-and-barrel storage unit to store the molten metal material. The storage unit for the molten metal material is composed of an upper storage tank and a lower material temperature control barrel having a smaller diameter, the barrel being perpendicularly arranged under and in communication with the bottom center of the tank. The melting barrels for bar-shaped metal materials are made of barrel bodies having an inside diameter and a length appropriate to accommodate the bar-shaped metal materials. A more than one melting barrel is vertically arranged in parallel on a lid member of the storage tank, with their bottom openings facing the inside of the storage tank.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: April 19, 2011
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Masaaki Minamimura, Yasuhiko Takeuchi, Toshiyasu Koda, Mamoru Miyagawa, Ikuo Uwadaira, Taku Kawano
  • Patent number: 7892114
    Abstract: A method for golf club selection uses a behavior of the golf swing when a golf club is gripped and swung. The method for golf club selection has a step of obtaining information of a vertical movement direction relative to a horizontal plane of a golf club head immediately before striking a golf ball, and information of the horizontal movement direction of the golf club head immediately before striking the golf ball on a plane parallel to the horizontal plane, a step of classifying the golf swing step as a predetermined type using the information of the vertical movement direction and information of the horizontal movement direction obtained, and a step of selecting a golf club suited for the classification according to the classification result.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: February 22, 2011
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Hiroshi Saegusa, Mamoru Miyagawa, Masatoshi Kyoumura
  • Patent number: 7858017
    Abstract: There is provided a method for melting a material rod in a material melting and holding apparatus of a metal molding apparatus where the material melting and holding apparatus provided for the metal molding apparatus includes a furnace body of a melting and holding furnace, and a melting cylinder for a material rod and a material supply cylinder for directly supplying the material rod into the furnace body provided in parallel with each other on the furnace body, upon startup of molding, the material rod is melted using the melting cylinder prior to supplying the molten material from the melting cylinder into the melting and holding furnace, and the material rod subsequently supplied from the material supply cylinder to a bottom portion of the furnace body is submerged and melted by the molten material, thereby maintaining the submersion melting in the melting and holding furnace after the startup of molding.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: December 28, 2010
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Masaaki Minamimura, Yasuhiko Takeuchi, Toshiyasu Koda, Mamoru Miyagawa
  • Patent number: 7749426
    Abstract: A method for controlling a molten metal material in an injection apparatus that includes a cylinder body with a nozzle at a front end, and a discharge opening on a bottom side of a rear portion. Heating means are provided on an outer periphery of the cylinder body and an injection cylinder is inserted onto an injection plunger for a forward and backward travel within a clearance inside the cylinder body. A material melting and supplying apparatus on a top portion of the injection cylinder has a bottom end outlet communicating with a cylinder body supply opening. Molten metal material accumulates from the supply opening in a cylinder front portion by backward plunge travel and is injected by a forward plunge travel. Heating means maintains the temperature of the molten metal material in front and middle cylinder portions and allows a lower temperature in a rear portion providing a seal metal as well as a lubricant.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: July 6, 2010
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Toshiyasu Koda, Mamoru Miyagawa
  • Patent number: 7628300
    Abstract: A method of preventing leaking of molten metal from a nozzle in an injection apparatus comprising, metering the molten metal by travel of a plunger head backward from a most forward position to a most backward position at the rear of a supply opening while maintaining nozzle contact after completion of an injection step and supplying molten metal from a furnace into a cylinder body through the supply opening, after completion of the metering, closing the supply opening by travel of the plunger head forward at a low speed from the backward position to a stand-by position ahead of the supply opening for cutting off the communication between the molten metal in the cylinder body and the molten metal in the furnace.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: December 8, 2009
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Masaaki Minamimura, Yasuhiko Takeuchi, Toshiyasu Koda, Mamoru Miyagawa, Ikuo Uwadaira, Taku Kawano
  • Publication number: 20090270204
    Abstract: A method for golf club selection uses a behavior of the golf swing when a golf club is gripped and swung. The method for golf club selection has a step of obtaining information of a vertical movement direction relative to a horizontal plane of a golf club head immediately before striking a golf ball, and information of the horizontal movement direction of the golf club head immediately before striking the golf ball on a plane parallel to the horizontal plane, a step of classifying the golf swing step as a predetermined type using the information of the vertical movement direction and information of the horizontal movement direction obtained, and a step of selecting a golf club suited for the classification according to the classification result.
    Type: Application
    Filed: April 22, 2009
    Publication date: October 29, 2009
    Applicant: The Yokohama Rubber Co., Ltd.
    Inventors: Hiroshi Saegusa, Mamoru Miyagawa, Masatoshi Kyoumura
  • Publication number: 20090188644
    Abstract: A control method for supplying an inert gas from an inert gas source to a storage container for a molten metal through a gas feed path provided with a flow sensor for monitoring the gas flow rate and a solenoid valve for opening and closing the gas feed path for use with metal molding. The control method comprises; turning off the solenoid valve at a temperature of the storage container is equal to or lower than a preset temperature, and turning off the flow sensor; turning on the solenoid valve at the temperature of the storage container has reached the preset temperature, and turning on the flow sensor; and stopping the output of the heater of the storage container when a flow rate of the inert gas is equal to or lower than the preset amount; these steps are controlled in accordance with a command signal from a controller.
    Type: Application
    Filed: January 21, 2009
    Publication date: July 30, 2009
    Applicant: Nissei Plastic Industrial Co., Ltd.
    Inventors: Yasuhiko Takeuchi, Mamoru Miyagawa, Ikuo Uwadaira
  • Publication number: 20090178776
    Abstract: A device for melting, storing, and feeding a metal material is provided which can store a large amount of molten metal material corresponding to molding cycles with a compact configuration, using barrels to melt bar-shaped metal materials and a tank-and-barrel storage unit to store the molten metal material. The storage unit for the molten metal material is composed of an upper storage tank and a lower material temperature control barrel having a smaller diameter, the barrel being perpendicularly arranged under and in communication with the bottom center of the tank. The melting barrels for bar-shaped metal materials are made of barrel bodies having an inside diameter and a length appropriate to accommodate the bar-shaped metal materials. A more than one melting barrel is vertically arranged in parallel on a lid member of the storage tank, with their bottom openings facing the inside of the storage tank.
    Type: Application
    Filed: January 15, 2009
    Publication date: July 16, 2009
    Applicant: Nissei Plastic Industrial Co., Ltd.
    Inventors: Masaaki Minamimura, Yasuhiko Takeuchi, Toshiyasu Koda, Mamoru Miyagawa, Ikuo Uwadaira, Taku Kawano
  • Publication number: 20090165984
    Abstract: Leakage of molten metal material from between a cylinder body having a tight-fitting liner and a nozzle member of an injection apparatus is prevented through the interaction of the nozzle member and a coupling ring with the liner.
    Type: Application
    Filed: December 17, 2008
    Publication date: July 2, 2009
    Applicant: Nissei Plastic Industrial Co., Ltd.
    Inventors: Toshiyasu Koda, Mamoru Miyagawa, Yasuhiko Takeuchi
  • Publication number: 20090090749
    Abstract: This is provided a method for preventing leaking of molten metal from a nozzle in an injection apparatus provided with a plunger within a cylinder body, a supply opening formed in an upper portion of the cylinder body, and a furnace for melting and holding the metal material provided on a top portion of the injection cylinder and having an outlet at the bottom end of the furnace communicated with the supply opening.
    Type: Application
    Filed: October 2, 2008
    Publication date: April 9, 2009
    Applicant: Nissei Plastic Industrial Co., Ltd.
    Inventors: Masaaki Minamimura, Yasuhiko Takeuchi, Toshiyasu Koda, Mamoru Miyagawa, Ikuo Uwadaira, Taku Kawano
  • Publication number: 20080203628
    Abstract: A method for controlling a molten metal material in an injection apparatus that includes a cylinder body with a nozzle at a front end, and a discharge opening on a bottom side of a rear portion. Heating means are provided on an outer periphery of the cylinder body and an injection cylinder is inserted onto an injection plunger for a forward and backward travel within a clearance inside the cylinder body. A material melting and supplying apparatus on a top portion of the injection cylinder has a bottom end outlet communicating with a cylinder body supply opening. Molten metal material accumulates from the supply opening in a cylinder front portion by backward plunge travel and is injected by a forward plunge travel. Heating means maintains the temperature of the molten metal material in front and middle cylinder portions and allows a lower temperature in a rear portion providing a seal metal as well as a lubricant.
    Type: Application
    Filed: February 5, 2008
    Publication date: August 28, 2008
    Applicant: Nissei Plastic Industrial Co., Ltd.
    Inventors: Toshiyasu Koda, Mamoru Miyagawa
  • Publication number: 20080143025
    Abstract: There is provided a method for melting a material rod in a material melting and holding apparatus of a metal molding apparatus where the material melting and holding apparatus provided for the metal molding apparatus includes a furnace body of a melting and holding furnace, and a melting cylinder for a material rod and a material supply cylinder for directly supplying the material rod into the furnace body provided in parallel with each other on the furnace body, upon startup of molding, the material rod is melted using the melting cylinder prior to supplying the molten material from the melting cylinder into the melting and holding furnace, and the material rod subsequently supplied from the material supply cylinder to a bottom portion of the furnace body is submerged and melted by the molten material, thereby maintaining the submersion melting in the melting and holding furnace after the startup of molding.
    Type: Application
    Filed: December 17, 2007
    Publication date: June 19, 2008
    Applicant: Nissei Plastic Industrial Co., Ltd.
    Inventors: Masaaki Minamimura, Yasuhiko Takeuchi, Toshiyasu Koda, Mamoru Miyagawa
  • Patent number: 7331372
    Abstract: To insert a cylindrical metallic raw material into a melting cylinder provided in a heating holding cylinder of a metal molding apparatus and to efficiently semi-melt or completely melt the cylindrical metallic raw material, a clearance between an inner circumferential surface of the melting cylinder and an outer circumferential surface of the cylindrical metallic raw material is limited to a range in which the clearance does not exceed 1.0 mm with respect to the inner diameter of the melting cylinder and the diameter of the metallic raw material during thermal expansion and the insertion of the metallic raw material in a non-thermal expansion state into the thermally expanding melting cylinder is possible, from a linear expansion coefficient of a metallic raw material and a linear expansion coefficient of a material of the melting cylinder.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: February 19, 2008
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Kiyoto Takizawa, Toshiyasu Koda, Mamoru Miyagawa, Kazuo Anzai, Koji Takei, Ikuo Uwadaira, Ko Yamazaki
  • Patent number: 7165599
    Abstract: In a metal molding machine provided having a tilt to a clamping device with an injection unit which is constituted by a liquid metallic material reservoir in which a cylinder having a nozzle portion at the tip portion equipped with a heating device at the outer periphery and an injection plunger having advance or retreat freely in the inside, and the injection cylinder at the rear portion, the metallic material feeding to the above liquid metallic material reservoir is performed in liquid by melt to the temperature of above the liquidus temperature in a melting cylinder standing the liquid metallic material reservoir to liquid metallic material surface from a feeding pipe having a smaller diameter than the inner diameter of the cylinder. The melting and feeding of metallic material is performed at an atmosphere of an inert gas such as argon.
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: January 23, 2007
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Kiyoto Takizawa, Toshiyasu Koda, Mamoru Miyagawa, Kazuo Anzai, Koji Takei, Ko Yamazaki
  • Publication number: 20060243414
    Abstract: To insert a cylindrical metallic raw material into a melting cylinder provided in a heating holding cylinder of a metal molding apparatus and to efficiently semi-melt or completely melt the cylindrical metallic raw material, a clearance between an inner circumferential surface of the melting cylinder and an outer circumferential surface of the cylindrical metallic raw material is limited to a range in which the clearance does not exceed 1.0 mm with respect to the inner diameter of the melting cylinder and the diameter of the metallic raw material during thermal expansion and the insertion of the metallic raw material in a non-thermal expansion state into the thermally expanding melting cylinder is possible, from a linear expansion coefficient of a metallic raw material and a linear expansion coefficient of a material of the melting cylinder.
    Type: Application
    Filed: February 24, 2005
    Publication date: November 2, 2006
    Inventors: Kiyoto Takizawa, Toshiyasu Koda, Mamoru Miyagawa, Kazuo Anzai, Koji Takei, Ikuo Uwadaira, Ko Yamazaki
  • Patent number: 7004225
    Abstract: An injection molding machine for low-melting point metallic material has an injection mechanism having a melting cylinder, an injection device, and a driving device. The driving device is disposed on the rear end of the melting cylinder for driving the injection device and includes a pedestal movable to advance and retreat freely to support the injection mechanism obliquely. A nozzle touch block on a tip end portion of the pedestal is touched obliquely by the nozzle member of the melting cylinder. A frame on a rear portion of the pedestal supports a rear portion of the injection mechanism and the driving device obliquely. A nozzle touch device touches an injection nozzle to a mold in the mold clamping mechanism by moving the pedestal with the injection mechanism toward the mold clamping mechanism.
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: February 28, 2006
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Kiyoto Takizawa, Toshiyasu Koda, Yuji Hayashi, Mamoru Miyagawa
  • Patent number: 6874563
    Abstract: A carbon nano material and a resin binder are plasticized and injection molded to form a preliminarily molded member. The preliminarily molded member is degreased by a heat treatment and made to a preliminarily molded porous member composed of the carbon nano material. The preliminarily molded porous member is inserted into a cavity of a product mold. A molten low melting point metal is injected into and fills the cavity. The preliminarily molded porous member is impregnated with the low melting point metal by injection pressure, thereby a composite metal product composed of the low melting point metal material integrally composited with the carbon nano material is molded. With the above arrangement, the characteristics of the carbon nano material are applied to the composite metal product to improve the functions thereof.
    Type: Grant
    Filed: August 21, 2003
    Date of Patent: April 5, 2005
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Atsushi Koide, Kiyoto Takizawa, Yoshitoshi Yamagiwa, Masashi Suganuma, Mamoru Miyagawa
  • Patent number: 6866088
    Abstract: An injection molding machine for low-melting point metallic material has an injection mechanism having a tip portion, a melting cylinder and a rear portion holding a drive mechanism. The tip portion has a weighing chamber and a nozzle member feeding a mold. The melting cylinder is held at an oblique angle to promote gravity flow of the molten metal toward the tip portion. The melting cylinder encloses an agitating and injection mechanism that rotates and advances or retreats freely within the cylinder. One agitating and injection mechanism has a hollow shaft surrounding an injection rod tipped by an injection plunger that moves lengthwise in the shaft and agitating wings disposed around the tip end of the hollow shaft. The wings reach the inner sides of the cylinder and rotate. The plunger may extend beyond the shaft to be inserted in the weighing chamber.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: March 15, 2005
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Kiyoto Takizawa, Toshiyasu Koda, Yuji Hayashi, Mamoru Miyagawa