Patents by Inventor Susumu Okuno
Susumu Okuno 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: 11185928Abstract: 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: November 30, 2021Assignee: Sumitomo Electric Hardmetal Corp.Inventors: Anongsack Paseuth, Yasuki Kido, Susumu Okuno, Shinya Imamura
-
Patent number: 11179782Abstract: 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 less than 0.95, 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 cutting edge portion being occupied in area by (200) oriented crystal grains at a ratio of 50% or more and less than 80%.Type: GrantFiled: February 27, 2020Date of Patent: November 23, 2021Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Yasuki Kido, Anongsack Paseuth, Susumu Okuno, Shinya Imamura
-
Patent number: 11167355Abstract: A cutting tool includes: a substrate including a rake face; and a coating film that coats the rake face, wherein the coating film includes an ?-Al2O3 layer disposed on the substrate, the ?-Al2O3 layer includes crystal grains of ?-Al2O3, an area ratio of crystal grains oriented in (001) among the crystal grains is 50% to 90% in the ?-Al2O3 layer at the rake face, and a film residual stress AA determined based on a crystal plane interval of a (001) plane of the ?-Al2O3 layer at the rake face is more than 0 MPa and less than or equal to 2000 MPa, and a film residual stress BA determined based on a crystal plane interval of a (110) plane of the ?-Al2O3 layer at the rake face is more than or equal to ?1000 MPa and less than 0 MPa.Type: GrantFiled: July 5, 2019Date of Patent: November 9, 2021Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Susumu Okuno, Shinya Imamura, Satoshi Ono, Anongsack Paseuth
-
Publication number: 20210316371Abstract: 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 PN1 atomic % represents an atomic ratio of the nitrogen in an interface between the intermediate layer and the alumina layer, and PN2 atomic % represents an atomic ratio of the nitrogen at a point A away from the interface by 1 ?m on a side of the intermediate layer, a ratio PN1/PN2 of the PN1 to the PN2 being more than or equal to 1.03.Type: ApplicationFiled: April 10, 2020Publication date: October 14, 2021Applicant: Sumitomo Electric Hardmetal Corp.Inventors: Susumu OKUNO, Yasuki KIDO, Fumiyoshi KOBAYASHI, Anongsack PASEUTH
-
Patent number: 11103930Abstract: A cutting tool includes: a substrate including a rake face; and a coating film that coats the rake face, wherein the coating film includes an ?-Al2O3 layer disposed on the substrate, the ?-Al2O3 layer includes crystal grains of ?-Al2O3, an area ratio of crystal grains oriented in (001) among the crystal grains is 50% to 90% in the ?-Al2O3 layer at the rake face, a film residual stress AA determined based on a crystal plane interval of a (001) plane of the ?-Al2O3 layer at the rake face is more than or equal to ?1000 MPa and less than 0 MPa, and a film residual stress BA determined based on a crystal plane interval of a (110) plane of the ?-Al2O3 layer at the rake face is more than or equal to ?1000 MPa and less than 0 MPa, and a relational expression of |AA|?|BA| is satisfied.Type: GrantFiled: July 5, 2019Date of Patent: August 31, 2021Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Susumu Okuno, Shinya Imamura, Satoshi Ono, Anongsack Paseuth
-
Publication number: 20210252604Abstract: 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 0.5 or more and 0.65 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 10 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 30 nm to 70 nm, a maximum value of 40 nm to 100 nm, and a minimum value of 20 nm to 40 nm.Type: ApplicationFiled: June 22, 2020Publication date: August 19, 2021Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Yasuki KIDO, Anongsack PASEUTH, Susumu OKUNO
-
Publication number: 20210245259Abstract: 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 10 nm or more and 45 nm or less, one multilayer structure layer and one lone layer forming a repetitive unit having a thickness with an average value of 20 nm to 50 nm, a maximum value of 40 nm to 60 nm, and a minimum value of 10 nm to 30 nm.Type: ApplicationFiled: June 22, 2020Publication date: August 12, 2021Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Yasuki KIDO, Anongsack PASEUTH, Susumu OKUNO
-
Publication number: 20210245261Abstract: 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: ApplicationFiled: June 22, 2020Publication date: August 12, 2021Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Yasuki KIDO, Anongsack PASEUTH, Susumu OKUNO
-
Publication number: 20210245262Abstract: 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 0.4 or more and less than 0.55, 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 10 nm or more and 45 nm or less, one multilayer structure layer and one lone layer forming a repetitive unit having a thickness with an average value of 20 nm to 50 nm, a maximum value of 40 nm to 60 nm, and a minimum value of 10 nm to 30 nm.Type: ApplicationFiled: June 22, 2020Publication date: August 12, 2021Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Yasuki KIDO, Anongsack PASEUTH, Susumu OKUNO
-
Publication number: 20210237165Abstract: 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 less than 0.95, 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 cutting edge portion being occupied in area by (200) oriented crystal grains at a ratio of 50% or more and less than 80%.Type: ApplicationFiled: February 27, 2020Publication date: August 5, 2021Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Yasuki KIDO, Anongsack PASEUTH, Susumu OKUNO, Shinya IMAMURA
-
Publication number: 20210237169Abstract: 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 0.4 or more and less than 0.55, 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: ApplicationFiled: June 22, 2020Publication date: August 5, 2021Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Yasuki KIDO, Anongsack PASEUTH, Susumu OKUNO
-
Patent number: 11014165Abstract: A cutting tool includes a substrate and a coating that covers the substrate, the coating includes an ?-Al2O3 layer, and the ?-Al2O3 layer has an orientation index TC(0 0 12) of a (0 0 12) plane not smaller than 4 and not larger than 8.5, an orientation index TC(2 0 14) of a (2 0 14) plane not smaller than 0.5 and not larger than 3, and a total of the orientation index TC(0 0 12) and the orientation index TC(2 0 14) not larger than 9.Type: GrantFiled: November 1, 2019Date of Patent: May 25, 2021Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Yuki Rikiso, Susumu Okuno, Anongsack Paseuth, Shinya Imamura
-
Patent number: 11007580Abstract: 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 less than 0.95, the AlTiN layer including a central portion, the central portion at the rake face being occupied in area by (111) oriented AlxTi1-xN crystal grains at a ratio of 50% or more and less than 80%, the central portion at the cutting edge portion being occupied in area by (111) oriented AlxTi1-xN crystal grains at a ratio of 80% or more.Type: GrantFiled: February 27, 2020Date of Patent: May 18, 2021Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Yasuki Kido, Anongsack Paseuth, Susumu Okuno, Shinya Imamura
-
Patent number: 10967433Abstract: A cutting tool comprises a substrate and a coating that coats the substrate, the coating including an ?-alumina layer, the ?-alumina layer including crystal grains of ?-alumina, the ?-alumina layer including a lower portion and an upper portion, the upper portion being occupied in area at a ratio of 50% or more by crystal grains of ?-alumina having (006) plane with a normal thereto having a direction within ±15° with respect to a direction of a normal to the second interface, the lower portion being occupied in area at a ratio of 5% or more and less than 50% by crystal grains of ?-alumina having (012) plane, (104) plane, (110) plane, (113) plane, (116) plane, (300) plane, (214) plane and (006) plane each with a normal thereto having a direction within ±15° with respect to the direction of the normal to the second interface.Type: GrantFiled: December 12, 2019Date of Patent: April 6, 2021Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Susumu Okuno, Shinya Imamura, Yuki Rikiso, Yasuki Kido, Fumiyoshi Kobayashi
-
Publication number: 20210069795Abstract: 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 less than 0.95, the AlTiN layer including a central portion, the central portion at the rake face being occupied in area by (200) oriented AlxTi1-xN crystal grains at a ratio of 50% or more and less than 80%, the central portion at the cutting edge portion being occupied in area by (200) oriented AlxTi1-xN crystal grains at a ratio of 80% or more.Type: ApplicationFiled: February 27, 2020Publication date: March 11, 2021Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Yasuki KIDO, Anongsack PASEUTH, Susumu OKUNO, Shinya IMAMURA
-
Publication number: 20210046554Abstract: A cutting tool includes a substrate and a coating that covers the substrate, the coating includes an ?-Al2O3 layer, and the ?-Al2O3 layer has an orientation index TC(0 0 12) of a (0 0 12) plane not smaller than 4 and not larger than 8.5, an orientation index TC(2 0 14) of a (2 0 14) plane not smaller than 0.5 and not larger than 3, and a total of the orientation index TC(0 0 12) and the orientation index TC(2 0 14) not larger than 9.Type: ApplicationFiled: November 1, 2019Publication date: February 18, 2021Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Yuki RIKISO, Susumu OKUNO, Anongsack PASEUTH, Shinya IMAMURA
-
Publication number: 20210008636Abstract: 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 less than 0.95, the AlTiN layer including a central portion, the central portion at the rake face being occupied in area by (111) oriented AlxTi1-xN crystal grains at a ratio of 50% or more and less than 80%, the central portion at the cutting edge portion being occupied in area by (111) oriented AlxTi1-xN crystal grains at a ratio of 80% or more.Type: ApplicationFiled: February 27, 2020Publication date: January 14, 2021Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Yasuki KIDO, Anongsack PASEUTH, Susumu OKUNO, Shinya IMAMURA
-
Publication number: 20210008633Abstract: A cutting tool includes: a substrate including a rake face; and a coating film that coats the rake face, wherein the coating film includes an ?-Al2O3 layer disposed on the substrate, the ?-Al2O3 layer includes crystal grains of ?-Al2O3, an area ratio of crystal grains oriented in (001) among the crystal grains is 50% to 90% in the ?-Al2O3 layer at the rake face, and a film residual stress AA determined based on a crystal plane interval of a (001) plane of the ?-Al2O3 layer at the rake face is more than 0 MPa and less than or equal to 2000 MPa, and a film residual stress BA determined based on a crystal plane interval of a (110) plane of the ?-Al2O3 layer at the rake face is more than or equal to ?1000 MPa and less than 0 MPa.Type: ApplicationFiled: July 5, 2019Publication date: January 14, 2021Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Susumu OKUNO, Shinya IMAMURA, Satoshi ONO, Anongsack PASEUTH
-
Publication number: 20200406366Abstract: A cutting tool includes: a substrate including a rake face; and a coating film that coats the rake face, wherein the coating film includes an ?-Al2O3 layer disposed on the substrate, the ?-Al2O3 layer includes crystal grains of ?-Al2O3, an area ratio of crystal grains oriented in (001) among the crystal grains is 50% to 90% in the ?-Al2O3 layer at the rake face, a film residual stress AA determined based on a crystal plane interval of a (001) plane of the ?-Al2O3 layer at the rake face is more than or equal to ?1000 MPa and less than 0 MPa, and a film residual stress BA determined based on a crystal plane interval of a (110) plane of the ?-Al2O3 layer at the rake face is more than or equal to ?1000 MPa and less than 0 MPa, and a relational expression of |AA|?|BA| is satisfied.Type: ApplicationFiled: July 5, 2019Publication date: December 31, 2020Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Susumu OKUNO, Shinya IMAMURA, Satoshi ONO, Anongsack PASEUTH
-
Publication number: 20200406367Abstract: A cutting tool comprises a substrate and a coating that coats the substrate, the coating including an ?-alumina layer, the ?-alumina layer including crystal grains of ?-alumina, the ?-alumina layer including a lower portion and an upper portion, the upper portion being occupied in area at a ratio of 50% or more by crystal grains of ?-alumina having (006) plane with a normal thereto having a direction within ±15° with respect to a direction of a normal to the second interface, the lower portion being occupied in area at a ratio of 5% or more and less than 50% by crystal grains of ?-alumina having (012) plane, (104) plane, (110) plane, (113) plane, (116) plane, (300) plane, (214) plane and (006) plane each with a normal thereto having a direction within t 15° with respect to the direction of the normal to the second interface.Type: ApplicationFiled: December 12, 2019Publication date: December 31, 2020Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Susumu OKUNO, Shinya IMAMURA, Yuki RIKISO, Yasuki KIDO, Fumiyoshi KOBAYASHI