Patents by Inventor Takahito Tanibuchi
Takahito Tanibuchi 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: 12000034Abstract: A coated tool in a non-limiting embodiment of the present disclosure includes a base and a coating film located on the base. The coated tool includes a first surface, a second surface adjacent to the first surface, and a cutting edge located on at least a part of a ridge part of the first surface and the second surface. The coating film includes an AlTiN film. The coating film has a first compressive stress ?11 in a first direction which is parallel to a surface of the base and intersects with the cutting edge at an angle of 90°, and a second compressive stress ?22 in a second direction which intersects with the first direction at an angle of 90°. The first compressive stress ?11 is different from the second compressive stress ?22.Type: GrantFiled: January 18, 2021Date of Patent: June 4, 2024Assignees: KYOCERA Corporation, THE UNIVERSITY OF TOKYOInventors: Hayato Kubo, Takahito Tanibuchi, Yukihiro Shimogaki, Takeshi Momose, Momoko Deura
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Publication number: 20230073338Abstract: A coated tool in a non-limiting embodiment of the present disclosure includes a base and a coating film located on the base. The coated tool includes a first surface, a second surface adjacent to the first surface, and a cutting edge located on at least a part of a ridge part of the first surface and the second surface. The coating film includes an AlTiN film. The coating film has a first compressive stress ?11 in a first direction which is parallel to a surface of the base and intersects with the cutting edge at an angle of 90°, and a second compressive stress ?22 in a second direction which intersects with the first direction at an angle of 90°. The first compressive stress ?11 is different from the second compressive stress ?22.Type: ApplicationFiled: January 18, 2021Publication date: March 9, 2023Inventors: Hayato KUBO, Takahito TANIBUCHI, Yukihiro SHIMOGAKI, Takeshi MOMOSE, Momoko DEURA
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Publication number: 20230058739Abstract: A coated tool in a non-limiting embodiment of the present disclosure includes a base and a coating film located on the base. The coated tool includes a first surface, a second surface adjacent to the first surface, and a cutting edge located on at least a part of a ridge part of the first surface and the second surface. The coating film includes an AlTiN film including Ti, Al and N. A first Al ratio and a second Al ratio are 0.7 or more. The first Al ratio is Al/(Al+Ti) at a point located 0.1 mm away from the cutting edge, and the second Al ratio is Al/(Al+Ti) at a point located 0.2 mm away from the cutting edge in the first surface. The second Al ratio is larger than the first Al ratio.Type: ApplicationFiled: January 18, 2021Publication date: February 23, 2023Inventors: Takahito TANIBUCHI, Hayato KUBO, Yukihiro SHIMOGAKI, Takeshi MOMOSE, Momoko DEURA
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Patent number: 10369632Abstract: A coated tool is, for example, a cutting tool which is provided with a base material and a coating layer located on the base material, wherein a cutting edge and a flank surface are located on the coating layer, the coating layer has a portion in which at least a titanium carbonitride layer and an aluminum oxide layer having an ?-type crystal structure are laminated in this order, and, with regard to a texture coefficient (Tc) (hkl) which is calculated on a basis of a peak of the aluminum oxide layer analyzed by an X-ray diffraction analysis, a texture coefficient (Tc1) (146) as measured from a surface side of the aluminum oxide layer in the flank surface is 1 or more.Type: GrantFiled: August 22, 2015Date of Patent: August 6, 2019Inventors: Kensaku Watanabe, Yoshikazu Kodama, Takahito Tanibuchi
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Patent number: 10370758Abstract: A coated tool is, for example, a cutting tool which is provided with a base material and a coating layer located on the base material, wherein a cutting edge and a flank surface are located on the coating layer, the coating layer has a portion in which at least a titanium carbonitride layer and an aluminum oxide layer having an ?-type crystal structure are laminated in this order, and, with regard to a texture coefficient (Tc) (hkl) which is calculated on a basis of a peak of the aluminum oxide layer analyzed by an X-ray diffraction analysis, a texture coefficient (Tc1) (4_0_10) as measured from a surface side of the aluminum oxide layer in the flank surface is 0.6 or more.Type: GrantFiled: September 24, 2015Date of Patent: August 6, 2019Assignee: Kyocera CorporationInventors: Yoshikazu Kodama, Kensaku Watanabe, Takahito Tanibuchi
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Patent number: 10202688Abstract: A coated tool includes a base body and a coating layer located on a surface of the base body. The coating layer includes at least a titanium carbonitride layer and an aluminum oxide layer having an ?-type crystal structure. In an X-ray diffraction analysis of the aluminum oxide layer, peaks related to Al2O3 appear in a wavenumber range of 416-425 cm?1(around 420 cm?1) of a Raman spectrum obtainable by irradiating an Ar laser beam having a wavelength of 514.53 nm from a cross section of the aluminum oxide layer. When a base body-side peak to be detected by measurement at the base body side portion of the aluminum oxide layer is compared with a surface-side peak to be detected by measurement at the surface side-portion of the aluminum oxide layer, the peak is located at a wavenumber on a lower angle side than the peak.Type: GrantFiled: March 23, 2015Date of Patent: February 12, 2019Assignee: KYOCERA CORPORATIONInventor: Takahito Tanibuchi
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Patent number: 10174421Abstract: A coated tool is, for example, a cutting tool which is provided with a base material and a coating layer located on a surface of the base material, wherein a cutting edge and a flank surface are located on the coating layer, the coating layer has a portion in which at least a titanium carbonitride layer and an aluminum oxide layer having an ?-type crystal structure are laminated in this order, and, with regard to a texture coefficient Tc (hkl) which is calculated on a basis of a peak of the aluminum oxide layer analyzed by an X-ray diffraction analysis, a texture coefficient Tc1 (0 1 14) as measured from a surface side of the aluminum oxide layer on a side of the flank surface is 1 or more.Type: GrantFiled: December 17, 2014Date of Patent: January 8, 2019Assignee: KYOCERA CORPORATIONInventors: Yoshikazu Kodama, Takahito Tanibuchi, Kou Ri
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Patent number: 10100401Abstract: A method for manufacturing a cutting insert includes preparing a base body provided with a through hole and including one of cermet and ceramic, mounting the base body on a holding member by passing the through hole of the base body over a projection including metal and formed on the holding member, and abutting the base body against the projection, forming a coated body by forming a coating layer on the surface of the base body, and cooling the coated body and removing the coated body from the projection.Type: GrantFiled: May 25, 2015Date of Patent: October 16, 2018Assignee: KYOCERA CORPORATIONInventor: Takahito Tanibuchi
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Patent number: 9970104Abstract: Provided is a coated tool exhibiting enhanced wear resistance and adhesiveness of an aluminum oxide layer and superior wear resistance and defect resistance. A cutting tool (1) in which at least a titanium carbonitride layer (8) and an aluminum oxide layer (10) having an ?-type crystalline structure are laminated in that order on a surface of a substrate (5). A surface-side Tc(116) in a surface-side peak is greater than a substrate-side Tc(116) in a substrate-side peak where Tc(116) is an orientation factor of the aluminum oxide layer (10) when comparing the substrate-side peak detected by measuring a portion on a substrate (5) side of the aluminum oxide layer (10) and the surface-side peak detected by measuring a portion on a surface side of the aluminum oxide layer (10) in X-ray diffraction analysis of the aluminum oxide layer (10).Type: GrantFiled: August 27, 2014Date of Patent: May 15, 2018Assignee: KYOCERA CORPORATIONInventors: Takahito Tanibuchi, Yoshikazu Kodama
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Publication number: 20170275751Abstract: There is provided a coated tool in which an aluminum oxide layer has improved wear resistance. The coated tool is, for example, a cutting tool (1) which is provided with a base material (5) and a coating layer (6) located on a surface of the base material (5), wherein a cutting edge (4) and a flank surface (3) are located on the coating layer (6), the coating layer (6) has a portion in which at least a titanium carbonitride layer (8) and an aluminum oxide layer (10) having an ?-type crystal structure are laminated in this order, and, with regard to a texture coefficient (Tc) (hkl) which is calculated on a basis of a peak of the aluminum oxide layer (10) analyzed by an X-ray diffraction analysis, a texture coefficient (Tc1) (4_0_10) as measured from a surface side of the aluminum oxide layer (10) in the flank surface (3) is 0.6 or more.Type: ApplicationFiled: September 24, 2015Publication date: September 28, 2017Inventors: Yoshikazu Kodama, Kensaku Watanabe, Takahito Tanibuchi
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Publication number: 20170246692Abstract: A coated tool is, for example, a cutting tool which is provided with a base material and a coating layer located on the base material, wherein a cutting edge and a flank surface are located on the coating layer, the coating layer has a portion in which at least a titanium carbonitride layer and an aluminum oxide layer having an a-type crystal structure are laminated in this order, and, with regard to a texture coefficient (Tc) (hkl) which is calculated on a basis of a peak of the aluminum oxide layer analyzed by an X-ray diffraction analysis, a texture coefficient (Tc1) (146) as measured from a surface side of the aluminum oxide layer in the flank surface is 1 or more.Type: ApplicationFiled: August 22, 2015Publication date: August 31, 2017Inventors: Kensaku WATANABE, Yoshikazu KODAMA, Takahito TANIBUCHI
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Publication number: 20170081760Abstract: A coated tool includes a base body and a coating layer located on a surface of the base body. The coating layer includes at least a titanium carbonitride layer and an aluminum oxide layer having an ?-type crystal structure. In an X-ray diffraction analysis of the aluminum oxide layer, peaks related to Al2O3 appear in a wavenumber range of 416-425 cm?1(around 420 cm?1) of a Raman spectrum obtainable by irradiating an Ar laser beam having a wavelength of 514.53 nm from a cross section of the aluminum oxide layer. When a base body-side peak to be detected by measurement at the base body side portion of the aluminum oxide layer is compared with a surface-side peak to be detected by measurement at the surface side-portion of the aluminum oxide layer, the peak is located at a wavenumber on a lower angle side than the peak.Type: ApplicationFiled: March 23, 2015Publication date: March 23, 2017Applicant: KYOCERA CorporationInventor: Takahito TANIBUCHI
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Publication number: 20170073808Abstract: A method for manufacturing a cutting insert includes preparing a base body provided with a through hole and including one of cermet and ceramic, mounting the base body on a holding member by passing the through hole of the base body over a projection including metal and formed on the holding member, and abutting the base body against the projection, forming a coated body by forming a coating layer on the surface of the base body, and cooling the coated body and removing the coated body from the projection.Type: ApplicationFiled: May 25, 2015Publication date: March 16, 2017Applicant: KYOCERA CorporationInventor: Takahito TANIBUCHI
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Publication number: 20160326641Abstract: A coated tool is, for example, a cutting tool which is provided with a base material and a coating layer located on a surface of the base material, wherein a cutting edge and a flank surface are located on the coating layer, the coating layer has a portion in which at least a titanium carbonitride layer and an aluminum oxide layer having an ?-type crystal structure are laminated in this order, and, with regard to a texture coefficient Tc (hkl) which is calculated on a basis of a peak of the aluminum oxide layer analyzed by an X-ray diffraction analysis, a texture coefficient Tc1 (0 1 14) as measured from a surface side of the aluminum oxide layer on a side of the flank surface is 1 or more.Type: ApplicationFiled: December 17, 2014Publication date: November 10, 2016Applicant: KYOCERA CorporationInventors: Yoshikazu KODAMA, Takahito TANIBUCHI, Kou RI
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Publication number: 20160201192Abstract: Provided is a coated tool exhibiting enhanced wear resistance and adhesiveness of an aluminum oxide layer and superior wear resistance and defect resistance. A cutting tool (1) in which at least a titanium carbonitride layer (8) and an aluminum oxide layer (10) having an ?-type crystalline structure are laminated in that order on a surface of a substrate (5). A surface-side Tc(116) in a surface-side peak is greater than a substrate-side Tc(116) in a substrate-side peak where Tc(116) is an orientation factor of the aluminum oxide layer (10) when comparing the substrate-side peak detected by measuring a portion on a substrate (5) side of the aluminum oxide layer (10) and the surface-side peak detected by measuring a portion on a surface side of the aluminum oxide layer (10) in X-ray diffraction analysis of the aluminum oxide layer (10).Type: ApplicationFiled: August 27, 2014Publication date: July 14, 2016Inventors: Takahito TANIBUCHI, Yoshikazu KODAMA
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Patent number: 8449992Abstract: Disclosed is a surface coated member having excellent adhesion resistance and fracture resistance. A surface coated member (1) comprises a coating layer (3) on the surface of a base (2). The coating layer (3) is composed of a multilayer body wherein a titanium carbonitride (TiCN) layer (4), a continuously existing intermediate layer (5) containing titanium, aluminum, carbon and oxygen and having an average film thickness of 5-30 nm, and an ?-aluminum oxide (Al2O3) layer (9) composed of aluminum oxide (Al2O3) having an ? crystal structure are sequentially formed by deposition.Type: GrantFiled: February 25, 2009Date of Patent: May 28, 2013Assignee: KYOCERA CorporationInventors: Takahito Tanibuchi, Yoshikazu Kodama, Tsuyoshi Fukano
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Publication number: 20130022418Abstract: Provided is a cutting tool such that the progress of wear is delayed and that wear resistance is excellent. This cutting tool is configured in such a way that multiple cover layers (7, 8, 9, 10, 11, 12, 14) are formed on the surface of a substrate (6); that the outermost layer (14), which is one of the cover layers, comprises a Ti(CxNyOz)a (x+y+z=1, 0?x?0.6, 0?y?0?0.6, 0.2?z?0.8, 1.0?a?1.7) layer; and that the thickness of that portion of the outermost layer (14) which is located in the center section (3a) of a flank surface is smaller than the surface roughness (Ra) of the outermost layer (14). The outermost layer (14) comes into contact with an article to be cut, leading to a coating being generated, with the result that the progress of wear is restricted.Type: ApplicationFiled: February 23, 2011Publication date: January 24, 2013Applicant: KYOCERA CORPORATIONInventors: Tsuyoshi Fukano, Takahito Tanibuchi, Kou Ri, Hayato Kubo, Tsuyoshi Yamasaki
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Patent number: 8252435Abstract: [PROBLEMS] To provide a cutting tool consisting of a hard material improved in the adherence between a substratum of cemented carbide having hard phases bound by a binder metal and a TiN layer superimposed on a surface of the substratum, and provide a process for producing the same. [MEANS FOR SOLVING PROBLEMS] There is provided a cutting tool consisting of a hard material, characterized in that the hard material has a substratum containing hard phases and a binder metal and a TiN layer superimposed on a surface of the substratum, and that the substratum has ?-phases consisting of at least one solid solution of carbide, nitride or carbonitride containing W and at least one member selected from among Ti, Ta, Nb and Zr, and that at least some of the ?-phases lie at a surface of the substratum, and that the TiN layer has crystals with the same orientation relationship as that of ?-phase crystals just above the ?-phases of the substratum surface.Type: GrantFiled: August 30, 2007Date of Patent: August 28, 2012Assignee: Kyocera CorporationInventor: Takahito Tanibuchi
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Patent number: 8182911Abstract: Disclosed is a cutting tool having excellent wear resistance. Specifically disclosed is a cutting tool having a substrate and a coating layer formed on a surface of the substrate. The cutting tool is characterized in that the substrate contains at least cobalt; the coating layer includes at least a titanium nitride layer formed on the surface of the substrate, a titanium carbonitride layer formed on the surface of the titanium nitride layer, an intermediate layer formed on the surface of the titanium carbonitride layer and an aluminum oxide layer formed on the surface of the intermediate layer; the intermediate layer contains at least oxygen and titanium, and the aluminum oxide layer incorporates particles composed mainly of cobalt.Type: GrantFiled: February 27, 2007Date of Patent: May 22, 2012Assignee: Kyocera CorporationInventor: Takahito Tanibuchi
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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