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).
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Patent number: 7104309Abstract: 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: GrantFiled: September 2, 2003Date of Patent: September 12, 2006Assignee: Nissin Kogyo Co., Ltd.Inventors: Keisuke Ban, Koichi Ogiwara, Sakuzo Nakatani, Akira Sunohara
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Patent number: 6964293Abstract: 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: GrantFiled: June 2, 2004Date of Patent: November 15, 2005Assignee: Nissin Kogyo Co., Ltd.Inventors: Keisuke Ban, Akira Sunohara, Yasuhiro Sasaki, Koichi Ogiwara, Sakuzo Nakatani
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Publication number: 20050000672Abstract: 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: ApplicationFiled: June 2, 2004Publication date: January 6, 2005Inventors: Keisuke Ban, Akira Sunohara, Yasuhiro Sasaki, Koichi Ogiwara, Sakuzo Nakatani
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Patent number: 6745816Abstract: 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: GrantFiled: May 10, 2001Date of Patent: June 8, 2004Assignee: Nissin Kogyo Kabushiki KaishaInventors: Keisuke Ban, Akira Sunohara, Yasuhiro Sasaki, Koichi Ogiwara, Sakuzo Nakatani
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Patent number: 6725900Abstract: 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: GrantFiled: March 15, 2002Date of Patent: April 27, 2004Assignee: Nissin Kogyo Co., Ltd.Inventors: Keisuke Ban, Koichi Ogiwara, Sakuzo Nakatani, Akira Sunohara
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Publication number: 20040035545Abstract: 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: ApplicationFiled: September 2, 2003Publication date: February 26, 2004Applicant: Nissin Kogyo Co., Ltd.Inventors: Keisuke Ban, Koichi Ogiwara, Sakuzo Nakatani
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Publication number: 20020129918Abstract: 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: ApplicationFiled: March 15, 2002Publication date: September 19, 2002Inventors: Keisuke Ban, Koichi Ogiwara, Sakuzo Nakatani, Akira Sunohara
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Publication number: 20020003033Abstract: 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: ApplicationFiled: May 10, 2001Publication date: January 10, 2002Inventors: Keisuke Ban, Akira Sunohara, Yasuhiro Sasaki, Koichi Ogiwara, Sakuzo Nakatani