Patents by Inventor Sakuzo Nakatani

Sakuzo Nakatani 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: 7104309
    Abstract: In the method of deoxidation casting, a disused metal left in a feeder head can be easily removed from a cast product, or the molten metal left in the feeder head can be removed from the cast product so as to easily finish the cast product. The method comprises the steps of: pouring a molten metal into a cavity of a casting die; and reacting a deoxidizing compound with the molten metal so as to deoxidize an oxide film formed on a surface of the molten metal. And the method is characterized in that rate of cooling the molten metal in a feeder head of the casting die is lower than that in the cavity, and that the molten metal in the feeder head, which is not solidified, is treated when the molten metal in the cavity is solidified so as to make an outline of a cast product correspond to that of a desired product.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: September 12, 2006
    Assignee: Nissin Kogyo Co., Ltd.
    Inventors: Keisuke Ban, Koichi Ogiwara, Sakuzo Nakatani, Akira Sunohara
  • Patent number: 6964293
    Abstract: The method of casting of the present invention is capable of making volume of a feeder head can be small and making cooling rate of the feeder head can be easily made lower than that of a cavity. The method is executed in a casting machine, which includes a casting die, in which the feeder head is provided between a metal inlet and the cavity and in which heat insulating of the feeder head is greater than that of the cavity so as to make cooling rate of the feeder head lower than that of the cavity. The method comprises the steps of: pouring a molten metal into the cavity; reacting the molten metal on a deoxidizing compound in the cavity so as to deoxidize an oxide film formed on a surface of the molten metal; and supplementing the molten metal in the feeder head to the cavity when the molten metal in the cavity is solidified and shrinked.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: November 15, 2005
    Assignee: Nissin Kogyo Co., Ltd.
    Inventors: Keisuke Ban, Akira Sunohara, Yasuhiro Sasaki, Koichi Ogiwara, Sakuzo Nakatani
  • Publication number: 20050000672
    Abstract: The method of casting of the present invention is capable of making volume of a feeder head can be small and making cooling rate of the feeder head can be easily made lower than that of a cavity. The method is executed in a casting machine, which includes a casting die, in which the feeder head is provided between a metal inlet and the cavity and in which heat insulating of the feeder head is greater than that of the cavity so as to make cooling rate of the feeder head lower than that of the cavity. The method comprises the steps of: pouring a molten metal into the cavity; reacting the molten metal on a deoxidizing compound in the cavity so as to deoxidize an oxide film formed on a surface of the molten metal; and supplementing the molten metal in the feeder head to the cavity when the molten metal in the cavity is solidified and shrinked.
    Type: Application
    Filed: June 2, 2004
    Publication date: January 6, 2005
    Inventors: Keisuke Ban, Akira Sunohara, Yasuhiro Sasaki, Koichi Ogiwara, Sakuzo Nakatani
  • Patent number: 6745816
    Abstract: The method of casting of the present invention is capable of making volume of a feeder head can be small and making cooling rate of the feeder head can be easily made lower than that of a cavity. The method is executed in a casting machine, which includes a casting die, in which the feeder head is provided between a metal inlet and the cavity and in which heat insulating of the feeder head is greater than that of the cavity so as to make cooling rate of the feeder head lower than that of the cavity. The method comprises the steps of: pouring a molten metal into the cavity; reacting the molten metal on a deoxidizing compound in the cavity so as to deoxidize an oxide film formed on a surface of the molten metal; and supplementing the molten metal in the feeder head to the cavity when the molten metal in the cavity is solidified and shrinked.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: June 8, 2004
    Assignee: Nissin Kogyo Kabushiki Kaisha
    Inventors: Keisuke Ban, Akira Sunohara, Yasuhiro Sasaki, Koichi Ogiwara, Sakuzo Nakatani
  • Patent number: 6725900
    Abstract: In the method of deoxidation casting, a disused metal left in a feeder head can be easily removed from a cast product, or the molten metal left in the feeder head can be removed from the cast product so as to easily finish the cast product. The method comprises the steps of: pouring a molten metal into a cavity of a casting die; and reacting a deoxidizing compound with the molten metal so as to deoxidize an oxide film formed on a surface of the molten metal. And the method is characterized in that rate of cooling the molten metal in a feeder head of the casting die is lower than that in the cavity, and that the molten metal in the feeder head, which is not solidified, is treated when the molten metal in the cavity is solidified so as to make an outline of a cast product correspond to that of a desired product.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: April 27, 2004
    Assignee: Nissin Kogyo Co., Ltd.
    Inventors: Keisuke Ban, Koichi Ogiwara, Sakuzo Nakatani, Akira Sunohara
  • Publication number: 20040035545
    Abstract: In the method of deoxidation casting, a disused metal left in a feeder head can be easily removed from a cast product, or the molten metal left in the feeder head can be removed from the cast product so as to easily finish the cast product. The method comprises the steps of: pouring a molten metal into a cavity of a casting die; and reacting a deoxidizing compound with the molten metal so as to deoxidize an oxide film formed on a surface of the molten metal. And the method is characterized in that rate of cooling the molten metal in a feeder head of the casting die is lower than that in the cavity, and that the molten metal in the feeder head, which is not solidified, is treated when the molten metal in the cavity is solidified so as to make an outline of a cast product correspond to that of a desired product.
    Type: Application
    Filed: September 2, 2003
    Publication date: February 26, 2004
    Applicant: Nissin Kogyo Co., Ltd.
    Inventors: Keisuke Ban, Koichi Ogiwara, Sakuzo Nakatani
  • Publication number: 20020129918
    Abstract: In the method of deoxidation casting, a disused metal left in a feeder head can be easily removed from a cast product, or the molten metal left in the feeder head can be removed from the cast product so as to easily finish the cast product. The method comprises the steps of: pouring a molten metal into a cavity of a casting die; and reacting a deoxidizing compound with the molten metal so as to deoxidize an oxide film formed on a surface of the molten metal. And the method is characterized in that rate of cooling the molten metal in a feeder head of the casting die is lower than that in the cavity, and that the molten metal in the feeder head, which is not solidified, is treated when the molten metal in the cavity is solidified so as to make an outline of a cast product correspond to that of a desired product.
    Type: Application
    Filed: March 15, 2002
    Publication date: September 19, 2002
    Inventors: Keisuke Ban, Koichi Ogiwara, Sakuzo Nakatani, Akira Sunohara
  • Publication number: 20020003033
    Abstract: The method of casting of the present invention is capable of making volume of a feeder head can be small and making cooling rate of the feeder head can be easily made lower than that of a cavity. The method is executed in a casting machine, which includes a casting die, in which the feeder head is provided between a metal inlet and the cavity and in which heat insulating of the feeder head is greater than that of the cavity so as to make cooling rate of the feeder head lower than that of the cavity. The method comprises the steps of: pouring a molten metal into the cavity; reacting the molten metal on a deoxidizing compound in the cavity so as to deoxidize an oxide film formed on a surface of the molten metal; and supplementing the molten metal in the feeder head to the cavity when the molten metal in the cavity is solidified and shrinked.
    Type: Application
    Filed: May 10, 2001
    Publication date: January 10, 2002
    Inventors: Keisuke Ban, Akira Sunohara, Yasuhiro Sasaki, Koichi Ogiwara, Sakuzo Nakatani