Patents by Inventor Ryota Take
Ryota Take 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: 11524336Abstract: A sintered body manufacturing apparatus includes a compacting apparatus configured to press a raw powder containing a metal powder into a green compact, a machining apparatus configured to perform a cutting operation on the green compact to produce an unsintered materials, and a green compact conveying path configured to connect the compacting apparatus in series to the machining apparatus to convey green compacts one by one from the compacting apparatus to the machining apparatus.Type: GrantFiled: April 9, 2021Date of Patent: December 13, 2022Assignee: Sumitomo Electric Sintered Alloy, Ltd.Inventor: Ryota Take
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Patent number: 11325186Abstract: Provided is a method for manufacturing a sintered component, which can suppress occurrence of edge chipping when a through-hole is formed in a powder-compact green body and also has a good productivity. The method for manufacturing a sintered component includes a molding step of press-molding a raw material powder containing a metal powder and thus fabricating a powder-compact green body; a drilling step of forming a hole in the powder-compact green body using a drill; a sintering step of sintering the powder-compact green body after drilling, wherein the drill used for drilling has a circular-arc shaped cutting edge on a point portion thereof.Type: GrantFiled: December 8, 2015Date of Patent: May 10, 2022Assignees: Sumitomo Electric Sintered Alloy, Ltd., Nikken Tool Co., Ltd.Inventors: Yasunori Sonoda, Ryota Take, Fumihiro Matsumoto, Tsuguru Sugimoto
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Patent number: 11305347Abstract: Provided is a method for manufacturing a sintered component, which can suppress occurrence of edge chipping when a through-hole is formed in a powder-compact green body and also has a good productivity. The method for manufacturing a sintered component includes a molding step of press-molding a raw material powder containing a metal powder and thus fabricating a powder-compact green body; a drilling step of forming a hole in the powder-compact green body using a drill; a sintering step of sintering the powder-compact green body after drilling, wherein the drill used for drilling has a circular-arc shaped cutting edge on a point portion thereof.Type: GrantFiled: July 7, 2020Date of Patent: April 19, 2022Assignees: Sumitomo Electric Sintered Alloy, Ltd., Nikken Tool Co., Ltd.Inventors: Yasunori Sonoda, Ryota Take, Fumihiro Matsumoto, Tsuguru Sugimoto
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Patent number: 11219950Abstract: Provided is a method for manufacturing a sintered component having a hole formed therein, in which a sintered component having no defect, such as cracks, can be manufactured with good productivity and also a reduction in tool life accompanied by forming the hole can be suppressed. The method for manufacturing a sintered component includes a molding step of press-molding a raw material powder containing a metal powder and thus fabricating a green body; a drilling step of forming a hole in the green body using a candle-type drill and thus forming a thin-walled portion, of which a thickness Gt as measured between an inner circumferential surface of the hole and an outer surface of the green body is smaller than a diameter Gd of the hole; and a sintering step of sintering the green body after the drilling step.Type: GrantFiled: March 18, 2019Date of Patent: January 11, 2022Assignee: Sumitomo Electric Sintered Alloy, Ltd.Inventors: Yasunori Sonoda, Ryota Take
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Patent number: 11097342Abstract: Provided is a method for manufacturing a sintered component having a hole formed therein, in which a sintered component having no defect, such as cracks, can be manufactured with good productivity and also a reduction in tool life accompanied by forming the hole can be suppressed. The method for manufacturing a sintered component includes a molding step of press-molding a raw material powder containing a metal powder and thus fabricating a green body; a drilling step of forming a hole in the green body using a candle-type drill and thus forming a thin-walled portion, of which a thickness Gt as measured between an inner circumferential surface of the hole and an outer surface of the green body is smaller than a diameter Gd of the hole; and a sintering step of sintering the green body after the drilling step.Type: GrantFiled: December 8, 2015Date of Patent: August 24, 2021Assignee: Sumitomo Electric Sintered Alloy, Ltd.Inventors: Yasunori Sonoda, Ryota Take
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Publication number: 20210220910Abstract: A sintered body manufacturing apparatus includes a compacting apparatus configured to press a raw powder containing a metal powder into a green compact, a machining apparatus configured to perform a cutting operation on the green compact to produce an unsintered materials, and a green compact conveying path configured to connect the compacting apparatus in series to the machining apparatus to convey green compacts one by one from the compacting apparatus to the machining apparatus.Type: ApplicationFiled: April 9, 2021Publication date: July 22, 2021Applicant: Sumitomo Electric Sintered Alloy, Ltd.Inventor: Ryota TAKE
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Patent number: 11027335Abstract: A sintered body manufacturing apparatus includes a compacting apparatus configured to press a raw powder containing a metal powder into a green compact, a machining apparatus configured to perform a cutting operation on the green compact to produce an unsintered materials, and a green compact conveying path configured to connect the compacting apparatus in series to the machining apparatus to convey green compacts one by one from the compacting apparatus to the machining apparatus.Type: GrantFiled: March 14, 2016Date of Patent: June 8, 2021Assignee: Sumitomo Electric Sintered Alloy, Ltd.Inventor: Ryota Take
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Patent number: 10894291Abstract: Provided is a method for manufacturing a sintered component having a hole formed therein, in which a sintered component having no defect, such as cracks, can be manufactured with good productivity and also a reduction in tool life accompanied by forming the hole can be suppressed. The method for manufacturing a sintered component includes a molding step of press-molding a raw material powder containing a metal powder and thus fabricating a green body; a drilling step of forming a hole in the green body using a candle-type drill and thus forming a thin-walled portion, of which a thickness Gt as measured between an inner circumferential surface of the hole and an outer surface of the green body is smaller than a diameter Gd of the hole; and a sintering step of sintering the green body after the drilling step.Type: GrantFiled: December 8, 2015Date of Patent: January 19, 2021Assignee: Sumitomo Electric Sintered Alloy, Ltd.Inventors: Yasunori Sonoda, Ryota Take
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Publication number: 20200331065Abstract: Provided is a method for manufacturing a sintered component, which can suppress occurrence of edge chipping when a through-hole is formed in a powder-compact green body and also has a good productivity. The method for manufacturing a sintered component includes a molding step of press-molding a raw material powder containing a metal powder and thus fabricating a powder-compact green body; a drilling step of forming a hole in the powder-compact green body using a drill; a sintering step of sintering the powder-compact green body after drilling, wherein the drill used for drilling has a circular-arc shaped cutting edge on a point portion thereof.Type: ApplicationFiled: July 7, 2020Publication date: October 22, 2020Applicants: SUMITOMO ELECTRIC SINTERED ALLOY, LTD., NIKKEN TOOL CO., LTD.Inventors: Yasunori Sonoda, Ryota Take, Fumihiro Matsumoto, Tsuguru Sugimoto
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Publication number: 20190217388Abstract: A sintered body manufacturing apparatus includes a compacting apparatus configured to press a raw powder containing a metal powder into a green compact, a machining apparatus configured to perform a cutting operation on the green compact to produce an unsintered materials, and a green compact conveying path configured to connect the compacting apparatus in series to the machining apparatus to convey green compacts one by one from the compacting apparatus to the machining apparatus.Type: ApplicationFiled: March 14, 2016Publication date: July 18, 2019Applicants: Sumitomo Electric Sintered Alloy, Ltd., Sumitomo Electric Sintered Alloy, Ltd.Inventor: Ryota Take
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Publication number: 20190210110Abstract: Provided is a method for manufacturing a sintered component having a hole formed therein, in which a sintered component having no defect, such as cracks, can be manufactured with good productivity and also a reduction in tool life accompanied by forming the hole can be suppressed. The method for manufacturing a sintered component includes a molding step of press-molding a raw material powder containing a metal powder and thus fabricating a green body; a drilling step of forming a hole in the green body using a candle-type drill and thus forming a thin-walled portion, of which a thickness Gt as measured between an inner circumferential surface of the hole and an outer surface of the green body is smaller than a diameter Gd of the hole; and a sintering step of sintering the green body after the drilling step.Type: ApplicationFiled: March 18, 2019Publication date: July 11, 2019Applicant: SUMITOMO ELECTRIC SINTERED ALLOY, LTDInventors: Yasunori Sonoda, Ryota Take
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Publication number: 20170320136Abstract: Provided is a method for manufacturing a sintered component, which can suppress occurrence of edge chipping when a through-hole is formed in a powder-compact green body and also has a good productivity. The method for manufacturing a sintered component includes a molding step of press-molding a raw material powder containing a metal powder and thus fabricating a powder-compact green body; a drilling step of forming a hole in the powder-compact green body using a drill; a sintering step of sintering the powder-compact green body after drilling, wherein the drill used for drilling has a circular-arc shaped cutting edge on a point portion thereof.Type: ApplicationFiled: December 8, 2015Publication date: November 9, 2017Inventors: Yasunori Sonoda, Ryota Take, Fumihiro Matsumoto, Tsuguru Sugimoto
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Publication number: 20170320137Abstract: Provided is a method for manufacturing a sintered component having a hole formed therein, in which a sintered component having no defect, such as cracks, can be manufactured with good productivity and also a reduction in tool life accompanied by forming the hole can be suppressed. The method for manufacturing a sintered component includes a molding step of press-molding a raw material powder containing a metal powder and thus fabricating a green body; a drilling step of forming a hole in the green body using a candle-type drill and thus forming a thin-walled portion, of which a thickness Gt as measured between an inner circumferential surface of the hole and an outer surface of the green body is smaller than a diameter Gd of the hole; and a sintering step of sintering the green body after the drilling step.Type: ApplicationFiled: December 8, 2015Publication date: November 9, 2017Inventors: Yasunori Sonoda, Ryota Take
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Patent number: 5259744Abstract: A device for forming a two-tiered external helical gear, having upper and lower parts having pitch circles of different diameters, includes a die, an upper punch and a lower punch which are rotatable relative to one another, and a core. The die is formed on the inner periphery with helical teeth in two tiers. The upper and lower teeth have the same twisting direction and lead and have pitch circles of diameters corresponding to the diameters of the pitch circles of the upper and lower parts of the gear. The upper punch is formed on the outer periphery with helical teeth adapted to mesh with the first tier of helical teeth on the inner periphery of the die. The lower punch is formed on the outer periphery thereof with helical teeth adapted to mesh with the second tier of helical teeth on the inner periphery of the die. There is also provided a similar device for forming a two-tiered internal helical gear.Type: GrantFiled: September 24, 1991Date of Patent: November 9, 1993Assignee: Sumitomo Electric Industries, Ltd.Inventor: Ryota Take