Patents by Inventor Yasuki Kido
Yasuki Kido 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: 11951550Abstract: A cemented carbide including tungsten carbide grains and a binder phase, in which a total content of the tungsten carbide grains and the binder phase in the cemented carbide is no less than 80 vol %, a content of the binder phase in the cemented carbide is no less than 0.1 vol % and no more than 20 vol %, in a histogram showing distribution of orientation differences between adjacent pairs each consisting of two of the tungsten carbide grains adjacent to each other in the cemented carbide, a first peak is present in a class of the orientation differences of no less than 29.5° and less than 30.5°.Type: GrantFiled: January 20, 2022Date of Patent: April 9, 2024Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Yasuki Kido, Katsumi Okamura, Takashi Sekiya
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Patent number: 11919092Abstract: A cutting tool including a rake face, a flank face, and a cutting edge portion, comprising a substrate and an AlTiN layer, the AlTiN layer including cubic AlxTi1-xN crystal grains, Al having an atomic ratio x of 0.7 or more and 0.95 or less, the AlTiN layer including a central portion, the central portion at the rake face being occupied in area by (200) oriented crystal grains at a ratio of 80% or more, the central portion at the flank face being occupied in area by (200) oriented crystal grains at a ratio of 80% or more, the central portion at the cutting edge portion being occupied in area by (200) oriented crystal grains at a ratio of 80% or more.Type: GrantFiled: February 27, 2020Date of Patent: March 5, 2024Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Yasuki Kido, Anongsack Paseuth, Susumu Okuno, Shinya Imamura
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Patent number: 11913096Abstract: A cemented carbide composed of a first hard phase, a second hard phase and a binder phase, in which the first hard phase is composed of tungsten carbide particles, the second hard phase is composed of at least one first compound selected from the group consisting of TiNbC, TiNbN and TiNbCN, the second hard phase has an average particle diameter of 0.25 ?m or less, the second hard phase has a dispersity of more than 0.70 and 17.0 or less, the second hard phase has a content of 0.1 vol % or more and 15 vol % or less, the binder phase contains at least one first element selected from the group consisting of iron, cobalt and nickel, and the binder phase has a content of 0.1 vol % or more and 19.0 vol % or less.Type: GrantFiled: November 18, 2022Date of Patent: February 27, 2024Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Yasuki Kido, Yoshihiro Kimura, Anongsack Paseuth
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Patent number: 11858049Abstract: A cemented carbide composed of a first hard phase, a second hard phase and a binder phase, in which the first hard phase is composed of tungsten carbide particles, the second hard phase is composed of at least one first compound selected from the group consisting of TiNbC, TiNbN and TiNbCN, the second hard phase has an average particle diameter of no more than 0.1 ?m, the second hard phase has a dispersity of no more than 0.7, the second hard phase has a content of no less than 0.1 vol % and no more than 15 vol %, the binder phase contains at least one first element selected from the group consisting of iron, cobalt and nickel, and the binder phase has a content of no less than 0.1 vol % and no more than 20 vol %.Type: GrantFiled: January 19, 2022Date of Patent: January 2, 2024Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Yasuki Kido, Katsumi Okamura, Chiaki Tokuda
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Publication number: 20230278109Abstract: A cemented carbide composed of a first hard phase, a second hard phase and a binder phase, in which the first hard phase is composed of tungsten carbide particles, the second hard phase is composed of at least one first compound selected from the group consisting of TiNbC, TiNbN and TiNbCN, the second hard phase has an average particle diameter of no more than 0.1 ?m, the second hard phase has a dispersity of no more than 0.7, the second hard phase has a content of no less than 0.1 vol % and no more than 15 vol %, the binder phase contains at least one first element selected from the group consisting of iron, cobalt and nickel, and the binder phase has a content of no less than 0.1 vol % and no more than 20 vol %.Type: ApplicationFiled: January 19, 2022Publication date: September 7, 2023Applicant: Sumitomo Electric Industries, Ltd.Inventors: Yasuki KIDO, Katsumi OKAMURA, Chiaki TOKUDA
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Publication number: 20230226617Abstract: A cemented carbide including tungsten carbide grains and a binder phase, in which a total content of the tungsten carbide grains and the binder phase in the cemented carbide is no less than 80 vol %, a content of the binder phase in the cemented carbide is no less than 0.1 vol % and no more than 20 vol %, in a histogram showing distribution of orientation differences between adjacent pairs each consisting of two of the tungsten carbide grains adjacent to each other in the cemented carbide, a first peak is present in a class of the orientation differences of no less than 29.5° and less than 30.5°.Type: ApplicationFiled: January 20, 2022Publication date: July 20, 2023Applicant: Sumitomo Electric Industries, Ltd.Inventors: Yasuki KIDO, Katsumi OKAMURA, Takashi SEKIYA
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Patent number: 11534837Abstract: A cutting tool includes a substrate and a coated film arranged on the substrate. The coated film includes a first layer. The first layer includes a plurality of crystal grains. The crystal grains are composed of AlxTi1-xCyN1-y, wherein x is more than 0.65 and less than 0.95, and y is not less than 0 and less than 0.1. In a first region, the crystal grains have an average aspect ratio of not more than 3.0. In a second region, the crystal grains have an average aspect ratio of more than 3.0 and not more than 10.0. The crystal grains include crystal grains having a cubic crystal structure. The first layer has a ratio of an area occupied by the crystal grains having a cubic crystal structure of not less than 90%. The first layer has a thickness of not less than 2 ?m and not more than 20 ?m.Type: GrantFiled: June 14, 2021Date of Patent: December 27, 2022Assignees: SUMITOMO ELECTRIC HARDMETAL CORP., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Fumiyoshi Kobayashi, Anongsack Paseuth, Yasuki Kido, Kosuke Tominaga
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Publication number: 20220402044Abstract: A cutting tool includes: a substrate; and a coating film disposed on the substrate, wherein the coating film includes an ?-Al2O3 layer, the ?-Al2O3 layer includes a plurality of ?-Al2O3 crystal grains, and has a TC(006) of more than 5 in texture coefficient TC(hkl), and an elastic modulus E1 of the ?-Al2O3 layer at a room temperature and an elastic modulus E2 of the ?-Al2O3 layer at 800° C. represent a relation of the following expression B-1: 0<{(E1?E2)/E1}×100<10??Expression B-1.Type: ApplicationFiled: June 11, 2020Publication date: December 22, 2022Applicant: Sumitomo Electric Hardmetal Corp.Inventors: Yasuki KIDO, Susumu OKUNO, Masahito HIKIJI
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Publication number: 20220402045Abstract: A cutting tool includes: a substrate; and a coating film disposed on the substrate, wherein the coating film includes an ?-Al2O3 layer, the ?-Al2O3 layer includes a plurality of ?-Al2O3 crystal grains, and has a TC (006) of more than 5 in texture coefficient TC (hkl), and a plastic deformation amount hp of the ?-Al2O3 layer at 800° C. is 0 nm or more and 100 nm or less.Type: ApplicationFiled: June 11, 2020Publication date: December 22, 2022Applicant: Sumitomo Electric Hardmetal Corp.Inventors: Yasuki KIDO, Susumu OKUNO, Masahito HIKIJI
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Publication number: 20220402043Abstract: A cutting tool includes: a substrate; and a coating film disposed on the substrate, wherein the coating film includes an ?-Al2O3 layer, the ?-Al2O3 layer includes a plurality of ?-Al2O3 crystal grains, and has a TC(006) of more than 5 in texture coefficient TC(hkl), and a hardness H1 of the ?-Al2O3 layer at a room temperature and a hardness H2 of the ?-Al2O3 layer at 800° C. represent a relation of the following expression A-1: 0<{(H1?H2)/H1}×100<60 ??Expression A-1.Type: ApplicationFiled: June 11, 2020Publication date: December 22, 2022Applicant: Sumitomo Electric Hardmetal Corp.Inventors: Yasuki KIDO, Susumu OKUNO, Masahito HIKIJI
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Publication number: 20220395909Abstract: A cutting tool includes a substrate and a coated film arranged on the substrate. The coated film includes a first layer. The first layer includes a plurality of crystal grains. The crystal grains are composed of AlxTi1?xCyN1?y, wherein x is more than 0.65 and less than 0.95, and y is not less than 0 and less than 0.1. In a first region, the crystal grains have an average aspect ratio of not more than 3.0. In a second region, the crystal grains have an average aspect ratio of more than 3.0 and not more than 10.0. The crystal grains include crystal grains having a cubic crystal structure. The first layer has a ratio of an area occupied by the crystal grains having a cubic crystal structure of not less than 90%. The first layer has a thickness of not less than 2 m and not more than 20 m.Type: ApplicationFiled: June 14, 2021Publication date: December 15, 2022Applicants: Sumitomo Electric Hardmetal Corp., Sumitomo Electric Industries, Ltd.Inventors: Fumiyoshi KOBAYASHI, Anongsack PASEUTH, Yasuki KIDO, Kosuke TOMINAGA
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Publication number: 20220379385Abstract: A cutting tool includes: a substrate; a hard layer provided on the substrate; and a titanium carbonitride layer provided on the hard layer, wherein a thickness of the titanium carbonitride layer is more than or equal to 2 ?m, a hardness of the titanium carbonitride layer at a room temperature is more than or equal to 35 GPa, and a Young's modulus of the titanium carbonitride layer at the room temperature is less than or equal to 650 GPa.Type: ApplicationFiled: June 4, 2020Publication date: December 1, 2022Applicant: Sumitomo Electric Hardmetal Corp.Inventors: Yasuki KIDO, Susumu OKUNO, Fumiyoshi KOBAYASHI, Masahito HIKIJI
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Publication number: 20220331880Abstract: Provided is a cutting tool including a base material and a coating layer provided on the base material, the coating layer including a titanium carbonitride layer provided on the base material, an intermediate layer provided on the titanium carbonitride layer in contact therewith, and an alumina layer provided on the intermediate layer in contact therewith, the intermediate layer being composed of a compound made of titanium, carbon, oxygen, and nitrogen, the intermediate layer having a thickness of more than 1 ?m, when PC1 atomic % represents an atomic ratio of the carbon in an interface between the intermediate layer and the alumina layer, and PC2 atomic % represents an atomic ratio of the carbon at a point A away from the interface by 1 ?m on a side of the intermediate layer, a ratio PC1/PC2 of the PC1 to the PC2 being more than or equal to 1.03.Type: ApplicationFiled: April 10, 2020Publication date: October 20, 2022Applicant: Sumitomo Electric Hardmetal Corp.Inventors: Susumu OKUNO, Yasuki KIDO, Fumiyoshi KOBAYASHI, Anongsack PASEUTH
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Publication number: 20220305565Abstract: Provided is a cutting tool including a base material and a coating layer provided on the base material, the coating layer including a titanium carbonitride layer provided on the base material, an intermediate layer provided on the titanium carbonitride layer in contact therewith, and an alumina layer provided on the intermediate layer in contact therewith, the intermediate layer being composed of a compound made of titanium, carbon, oxygen, and nitrogen, the intermediate layer having a thickness of more than 1 ?m, when PO1 atomic % represents an atomic ratio of the oxygen in an interface between the intermediate layer and the alumina layer, and PO2 atomic % represents an atomic ratio of the oxygen at a point A away from the interface by 1 ?m on a side of the intermediate layer, a ratio PO1/PO2 of the PO1 to the PO2 being more than or equal to 1.03.Type: ApplicationFiled: April 10, 2020Publication date: September 29, 2022Applicant: Sumitomo Electric Hardmetal Corp.Inventors: Susumu OKUNO, Yasuki KIDO, Fumiyoshi KOBAYASHI, Anongsack PASEUTH
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Patent number: 11441209Abstract: A cemented carbide includes first hard phase grains, second hard phase grains, third hard phase grains, and a metal binder phase, wherein the cemented carbide has a total of 70 unit regions, the number of unit regions each having a percentage of less than 0.43% or more than 2.43% is ?10 among the total of 70 unit regions, the percentage being a percentage of the total number of the second and the third hard phase grains in each unit region with respect to the total number of the second and the third hard phase grains in the total of 70 unit regions, and in a total of 10 unit regions existing in a fourth row in a longitudinal direction, a percentage of the number of the third hard phase grains with respect to the total number of the second and the third hard phase grains is 5% to 15%.Type: GrantFiled: March 23, 2021Date of Patent: September 13, 2022Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Kosuke Fukae, Yasuki Kido, Masami Watanabe, Shinya Imamura
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Patent number: 11390942Abstract: A cutting tool comprises a substrate and an AlTiN layer, the AlTiN layer including cubic AlxTi(1-x)N crystal grains, an atomic ratio x of Al in the AlxTi(1-x)N being 0.7 or more and 0.95 or less, the AlTiN layer including a first major surface on a side of a surface of the cutting tool and a second major surface on a side of the substrate, the AlTiN layer including a first region having a distance of 0 nm or more and 100 nm or less from the first major surface, and a second region having a distance of more than 100 nm and 150 nm or less from the first major surface, the first region having a maximum oxygen content ratio of 5 atomic % or more and 30 atomic % or less, the second region having a maximum oxygen content ratio of less than 5 atomic %.Type: GrantFiled: June 2, 2020Date of Patent: July 19, 2022Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Yasuki Kido, Susumu Okuno, Fumiyoshi Kobayashi
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Patent number: 11358226Abstract: A cutting tool comprises a substrate and a coating layer provided on the substrate, the coating layer including a multilayer structure layer composed of a first unit layer and a second unit layer, and a lone layer, the lone layer including cubic TizAl1-zN crystal grains, an atomic ratio z of Ti in the TizAl1-zN being 0.55 or more and 0.7 or less, the lone layer having a thickness with an average value of 2.5 nm or more and 10 nm or less, the multilayer structure layer having a thickness with an average value of 40 nm or more and 95 nm or less, one multilayer structure layer and one lone layer forming a repetitive unit having a thickness with an average value of 50 nm to 100 nm, a maximum value of 90 nm to 110 nm, and a minimum value of 40 nm to 60 nm.Type: GrantFiled: June 22, 2020Date of Patent: June 14, 2022Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Yasuki Kido, Anongsack Paseuth, Susumu Okuno
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Patent number: 11332810Abstract: A cemented carbide comprises a first hard phase comprising tungsten carbide particles and a binder phase including Co and Cr. In any surface or any cross section of the cemented carbide, a region in which there is a distance X of 5 nm or less between surfaces respectively of tungsten carbide particles adjacent to each other, with the surfaces facing each other along a length L of 100 nm or more, is referred to as a WC/WC interface, and a ratio C(R)/C(C) has an average value of 0.17 or more, where C(R) and C(C) represent peak values of atomic percentages of Cr and Co, respectively, at a WC/WC interface having a distance X of 1 nm or more and 5 nm or less and having therein an atomic percentage of Co higher than an average value of atomic percentages of Co in the tungsten carbide particles+2 at %.Type: GrantFiled: July 31, 2018Date of Patent: May 17, 2022Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Yasuki Kido, Daiji Tabayashi, Shinya Imamura
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Patent number: 11326252Abstract: A surface-coated cutting tool includes a substrate and a coating film that coats the substrate, wherein the coating film includes a hard coating layer constituted of a domain region and a matrix region, the domain region is a region having a plurality of portions divided and distributed in the matrix region, the domain region has a structure in which a first layer composed of a first Alx1Ti(1-x1) compound and a second layer composed of a second Alx2Ti(1-x2) compound are layered on each other, the matrix region has a structure in which a third layer composed of a third Alx3Ti(1-x3) compound and a fourth layer composed of a fourth Alx4Ti(1-x4) compound are layered on each other.Type: GrantFiled: December 27, 2018Date of Patent: May 10, 2022Assignee: Sumitomo Electric Hardmetal Corp.Inventors: Yasuki Kido, Anongsack Paseuth, Susumu Okuno, Shinya Imamura
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Patent number: 11311945Abstract: A surface-coated cutting tool includes a substrate and a coating film that coats the substrate, wherein the coating film includes a hard coating layer constituted of a domain region and a matrix region, the domain region is a region having a plurality of portions divided and distributed in the matrix region, the domain region has a structure in which a first layer composed of a first Alx1Ti(1-x1) compound and a second layer composed of a second Alx2Ti(1-x2) compound are layered on each other, the matrix region has a structure in which a third layer composed of a third Alx3Ti(1-x3) compound and a fourth layer composed of a fourth Alx4Ti(1-x4) compound are layered on each other, the first AlTi compound and the third AlTi compound have a hexagonal crystal structure, the second AlTi compound and the fourth AlTi compound have a cubic crystal structure.Type: GrantFiled: December 27, 2018Date of Patent: April 26, 2022Assignee: Sumitomo Electric Hardmetal Corp.Inventors: Anongsack Paseuth, Yasuki Kido, Susumu Okuno, Shinya Imamura