Patents by Inventor Hirotoshi Itoh
Hirotoshi Itoh 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: 11541468Abstract: A coated tool of the present disclosure is provided with a base member and a coating layer located on a surface of the base member. The coating layer includes a TiCNO layer and an Al2O3 layer. The Al2O3 layer is located in contact with the TiCNO layer at a position farther from the base member than the TiCNO layer is. The TiCNO layer includes a plurality of first protrusions that project toward the Al2O3 layer, and a beam that extends in a direction intersecting a direction in which the first protrusions project, to connect the first protrusions. A cutting tool of the present disclosure is provided with: a holder extending from a first end toward a second end and including a pocket on a side of the first end; and the above-described coated tool located in the pocket.Type: GrantFiled: January 28, 2019Date of Patent: January 3, 2023Assignee: KYOCERA CorporationInventors: Yuusaku Sugawa, Yoshikazu Kodama, Kenji Kumai, Takanori Sugiyama, Hirotoshi Itoh
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Patent number: 11534835Abstract: A coated tool of the present disclosure is provided with a base member and a coating layer located on a surface of the base member. The coating layer includes a TiCNO layer and an Al2O3 layer. The Al2O3 layer is located in contact with the TiCNO layer at a position farther from the base member than the TiCNO layer is. The TiCNO layer includes a first composite protrusion including a first protrusion that projects toward the Al2O3 layer and a second protrusion that projects from the first protrusion in a direction intersecting a direction in which the first protrusion projects. A cutting tool of the present disclosure is provided with: a holder extending from a first end toward a second end and including a pocket on a side of the first end; and the above-described coated tool located in the pocket.Type: GrantFiled: January 28, 2019Date of Patent: December 27, 2022Assignee: KYOCERA CorporationInventors: Yuusaku Sugawa, Yoshikazu Kodama, Kenji Kumai, Takanori Sugiyama, Hirotoshi Itoh
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Patent number: 11517966Abstract: A coated tool of the present disclosure is provided with a base member and a coating layer located on a surface of the base member. The coating layer includes a TiCNO layer and an Al2O3 layer. The Al2O3 layer is located in contact with the TiCNO layer at a position farther from the base member than the TiCNO layer is. The TiCNO layer includes a composite protrusion including a first protrusion that projects toward the Al2O3 layer, a second protrusion that projects from the first protrusion in a direction intersecting a direction in which the first protrusion projects, and a third protrusion that projects from the second protrusion in a direction intersecting the direction in which the second protrusion projects.Type: GrantFiled: January 28, 2019Date of Patent: December 6, 2022Assignee: KYOCERA CORPORATIONInventors: Yuusaku Sugawa, Yoshikazu Kodama, Kenji Kumai, Takanori Sugiyama, Hirotoshi Itoh
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Publication number: 20210114114Abstract: A coated tool of the present disclosure is provided with a base member and a coating layer located on a surface of the base member. The coating layer includes a TiCNO layer and an Al2O3 layer. The Al2O3 layer is located in contact with the TiCNO layer at a position farther from the base member than the TiCNO layer is. The TiCNO layer includes a first composite protrusion including a first protrusion that projects toward the Al2O3 layer and a second protrusion that projects from the first protrusion in a direction intersecting a direction in which the first protrusion projects. A cutting tool of the present disclosure is provided with: a holder extending from a first end toward a second end and including a pocket on a side of the first end; and the above-described coated tool located in the pocket.Type: ApplicationFiled: January 28, 2019Publication date: April 22, 2021Applicant: KYOCERA CorporationInventors: Yuusaku SUGAWA, Yoshikazu KODAMA, Kenji KUMAI, Takanori SUGIYAMA, Hirotoshi ITOH
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Publication number: 20210114115Abstract: A coated tool of the present disclosure is provided with a base member and a coating layer located on a surface of the base member. The coating layer includes a TiCNO layer and an Al2O3 layer. The Al2O3 layer is located in contact with the TiCNO layer at a position farther from the base member than the TiCNO layer is. The TiCNO layer includes a composite protrusion including a first protrusion that projects toward the Al2O3 layer, a second protrusion that projects from the first protrusion in a direction intersecting a direction in which the first protrusion projects, and a third protrusion that projects from the second protrusion in a direction intersecting the direction in which the second protrusion projects.Type: ApplicationFiled: January 28, 2019Publication date: April 22, 2021Applicant: KYOCERA CorporationInventors: Yuusaku SUGAWA, Yoshikazu KODAMA, Kenji KUMAI, Takanori SUGIYAMA, Hirotoshi ITOH
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Publication number: 20210114121Abstract: A coated tool of the present disclosure is provided with a base member and a coating layer located on a surface of the base member. The coating layer includes a TiCNO layer and an Al2O3 layer. The Al2O3 layer is located in contact with the TiCNO layer at a position farther from the base member than the TiCNO layer is. The TiCNO layer includes a plurality of first protrusions that project toward the Al2O3 layer, and a beam that extends in a direction intersecting a direction in which the first protrusions project, to connect the first protrusions. A cutting tool of the present disclosure is provided with: a holder extending from a first end toward a second end and including a pocket on a side of the first end; and the above-described coated tool located in the pocket.Type: ApplicationFiled: January 28, 2019Publication date: April 22, 2021Applicant: KYOCERA CorporationInventors: Yuusaku SUGAWA, Yoshikazu KODAMA, Kenji KUMAI, Takanori SUGIYAMA, Hirotoshi ITOH
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Patent number: 10717135Abstract: A coated tool may include a substrate and a coating layer located on a surface of the substrate. The coating layer includes: a first titanium carbonitride layer located on the substrate; a second titanium carbonitride layer located on the first titanium carbonitride layer; and an aluminum oxide layer located on the second titanium carbonitride layer. The first titanium carbonitride layer includes a plurality of first protrusions protruding toward a side of the aluminum oxide layer. The second titanium carbonitride layer includes a plurality of second protrusions protruding toward a side of the aluminum oxide layer. A number of second protrusions is greater than that of the first protrusions.Type: GrantFiled: February 24, 2017Date of Patent: July 21, 2020Assignee: KYOCERA CORPORATIONInventors: Hayato Kubo, Yoshikazu Kodama, Hirotoshi Itoh
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Publication number: 20190344356Abstract: A cutting insert may include a base member and a coating layer. The base member may include a first and second surface. The coating layer may be located on the base member. The coating layer may include a first layer containing ?-aluminum oxide, which is located above the first surface and the second surface. The first layer may include a first region located above the first surface, and a second region located above the second surface. When an angle formed by a normal line of a crystal plane (001) of the ?-aluminum oxide in the first layer and a normal line of the surface of the base member is a first inclination angle, a peak of a distribution of the first inclination angle in the first region is located at a lower angle side than a peak of a distribution of the first inclination angle in the second region.Type: ApplicationFiled: November 15, 2017Publication date: November 14, 2019Inventors: Yoshikazu KODAMA, Hirotoshi ITOH, Tadashi KATSUMA, Kensaku WATANABE, Kenji KUMAI, Yuusaku SUGAWA
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Publication number: 20190039148Abstract: A coated tool may include a substrate and a coating layer located on a surface of the substrate. The coating layer includes: a first titanium carbonitride layer located on the substrate; a second titanium carbonitride layer located on the first titanium carbonitride layer; and an aluminum oxide layer located on the second titanium carbonitride layer. The first titanium carbonitride layer includes a plurality of first protrusions protruding toward a side of the aluminum oxide layer. The second titanium carbonitride layer includes a plurality of second protrusions protruding toward a side of the aluminum oxide layer. A number of second protrusions is greater than that of the first protrusions.Type: ApplicationFiled: February 24, 2017Publication date: February 7, 2019Inventors: Hayato KUBO, Yoshikazu KODAMA, Hirotoshi ITOH
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Patent number: 8007929Abstract: A surface coated cutting tool having, on a surface of a substrate, a hard coating layer including at least an aluminum oxide layer, the surface having a rake face on a main face thereof and a flank on a side face thereof, wherein, when a value calculated by the following equation (I) is a texture coefficient TC of the (HKL) plane of the aluminum oxide layer, a ratio of a texture coefficient TCR on the rake face to a texture coefficient TCF on the flank, TCF/TCR, is in a range of 0.3 to 0.95. TC = I ? ( HKL ) / I O ? ( HKL ) 1 / 6 ? ? ? [ I ? ( hkl ) / I 0 ? ( hkl ) ] ( I ) where I(HKL), I0(HKL) and ?[I(hkl)/I0(hkl)] are as described in the specification.Type: GrantFiled: July 20, 2005Date of Patent: August 30, 2011Assignee: Kyocera CorporationInventors: Hirotoshi Itoh, Takahito Tanibuchi
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Patent number: 7789598Abstract: A surface coated cutting tool comprises a substrate and a hard layer formed on the surface of the substrate, and a contact angle of water ? on the rake face of the hard layer is in the range of 30 to 80°. A surface coated cutting tool comprises a substrate and a hard layer formed on the surface of the substrate, and a contact angle of water ?R on the rake face of the hard layer and a contact angle of water ?F on the flank face of the hard layer have a relation of ?R<?F. Thereby, excellent resistance to wear and fracture can be shown, leading to a excellent surface coated cutting tool.Type: GrantFiled: July 11, 2006Date of Patent: September 7, 2010Assignee: Kyocera CorporationInventors: Takahito Tanibuchi, Hirotoshi Itoh
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Publication number: 20100135737Abstract: A surface coated member and its manufacturing method are provided. The member has a substrate and a coating layer on the substrate surface. A plurality of first phases and a second phase exist in the coating layer surface. The first phases are composed of at least one compound containing at least one element selected from metals in Groups 4, 5 and 6 of the periodic table, aluminum and silicon, and oxygen. The second phase is composed of at least one compound selected from carbide, nitride and carbon nitride of at least one element selected from the abovementioned metals, aluminum and silicon. A cutting tool includes the surface coated member and has a rake face on the upper surface, a flank face on the side surface, and a cutting edge at a crossed ridge portion between the rake face formed by at least the coating layer surface, and the flank face.Type: ApplicationFiled: October 30, 2006Publication date: June 3, 2010Applicant: KYOCERA CORPORATIONInventors: Tsuyoshi Fukano, Hirotoshi Itoh
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Publication number: 20090214857Abstract: A surface coated cutting tool having, on a surface of a substrate, a hard coating layer including at least an aluminium oxide layer, the surface having a rake face on a main face thereof and a flank on a side face thereof, wherein, when a value calculated by the following equation (I) is a texture coefficient TC of the (HKL) plane of the aluminium oxide layer, a ratio of a texture coefficient TCR on the rake face to a texture coefficient TCF on the flank, TCF/TCR, is in a range of 0.3 to 0.95. TC = I ? ( HKL ) / I O ? ( HKL ) 1 / 6 ? ? ? [ I ? ( hkl ) / I 0 ? ( hkl ) ] ( I ) where I(HKL), I0(HKL) and ?[I(hkl)/I0(hkl)] are as described in the specification.Type: ApplicationFiled: July 20, 2005Publication date: August 27, 2009Applicant: KYOCERA CORPORATIONInventors: Hirotoshi Itoh, Takahito Tanbuchi
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Publication number: 20070166545Abstract: A surface coated cutting tool comprises a substrate and a hard layer formed on the surface of the substrate, and a contact angle of water ? on the rake face of the hard layer is in the range of 30 to 80°. A surface coated cutting tool comprises a substrate and a hard layer formed on the surface of the substrate, and a contact angle of water ?R on the rake face of the hard layer and a contact angle of water ?F on the flank face of the hard layer have a relation of ?R<?F. Thereby, excellent resistance to wear and fracture can be shown, leading to a excellent surface coated cutting tool.Type: ApplicationFiled: July 11, 2006Publication date: July 19, 2007Inventors: Takahito Tanibuchi, Hirotoshi Itoh