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).

  • Patent number: 12000034
    Abstract: 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: Grant
    Filed: January 18, 2021
    Date of Patent: June 4, 2024
    Assignees: KYOCERA Corporation, THE UNIVERSITY OF TOKYO
    Inventors: Hayato Kubo, Takahito Tanibuchi, Yukihiro Shimogaki, Takeshi Momose, Momoko Deura
  • Publication number: 20230073338
    Abstract: 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: Application
    Filed: January 18, 2021
    Publication date: March 9, 2023
    Inventors: Hayato KUBO, Takahito TANIBUCHI, Yukihiro SHIMOGAKI, Takeshi MOMOSE, Momoko DEURA
  • Publication number: 20230058739
    Abstract: 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: Application
    Filed: January 18, 2021
    Publication date: February 23, 2023
    Inventors: Takahito TANIBUCHI, Hayato KUBO, Yukihiro SHIMOGAKI, Takeshi MOMOSE, Momoko DEURA
  • Patent number: 10369632
    Abstract: 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: Grant
    Filed: August 22, 2015
    Date of Patent: August 6, 2019
    Inventors: Kensaku Watanabe, Yoshikazu Kodama, Takahito Tanibuchi
  • Patent number: 10370758
    Abstract: 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: Grant
    Filed: September 24, 2015
    Date of Patent: August 6, 2019
    Assignee: Kyocera Corporation
    Inventors: Yoshikazu Kodama, Kensaku Watanabe, Takahito Tanibuchi
  • Patent number: 10202688
    Abstract: 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: Grant
    Filed: March 23, 2015
    Date of Patent: February 12, 2019
    Assignee: KYOCERA CORPORATION
    Inventor: Takahito Tanibuchi
  • Patent number: 10174421
    Abstract: 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: Grant
    Filed: December 17, 2014
    Date of Patent: January 8, 2019
    Assignee: KYOCERA CORPORATION
    Inventors: Yoshikazu Kodama, Takahito Tanibuchi, Kou Ri
  • Patent number: 10100401
    Abstract: 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: Grant
    Filed: May 25, 2015
    Date of Patent: October 16, 2018
    Assignee: KYOCERA CORPORATION
    Inventor: Takahito Tanibuchi
  • Patent number: 9970104
    Abstract: 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: Grant
    Filed: August 27, 2014
    Date of Patent: May 15, 2018
    Assignee: KYOCERA CORPORATION
    Inventors: Takahito Tanibuchi, Yoshikazu Kodama
  • Publication number: 20170275751
    Abstract: 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: Application
    Filed: September 24, 2015
    Publication date: September 28, 2017
    Inventors: Yoshikazu Kodama, Kensaku Watanabe, Takahito Tanibuchi
  • Publication number: 20170246692
    Abstract: 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: Application
    Filed: August 22, 2015
    Publication date: August 31, 2017
    Inventors: Kensaku WATANABE, Yoshikazu KODAMA, Takahito TANIBUCHI
  • Publication number: 20170081760
    Abstract: 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: Application
    Filed: March 23, 2015
    Publication date: March 23, 2017
    Applicant: KYOCERA Corporation
    Inventor: Takahito TANIBUCHI
  • Publication number: 20170073808
    Abstract: 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: Application
    Filed: May 25, 2015
    Publication date: March 16, 2017
    Applicant: KYOCERA Corporation
    Inventor: Takahito TANIBUCHI
  • Publication number: 20160326641
    Abstract: 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: Application
    Filed: December 17, 2014
    Publication date: November 10, 2016
    Applicant: KYOCERA Corporation
    Inventors: Yoshikazu KODAMA, Takahito TANIBUCHI, Kou RI
  • Publication number: 20160201192
    Abstract: 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: Application
    Filed: August 27, 2014
    Publication date: July 14, 2016
    Inventors: Takahito TANIBUCHI, Yoshikazu KODAMA
  • Patent number: 8449992
    Abstract: 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: Grant
    Filed: February 25, 2009
    Date of Patent: May 28, 2013
    Assignee: KYOCERA Corporation
    Inventors: Takahito Tanibuchi, Yoshikazu Kodama, Tsuyoshi Fukano
  • Publication number: 20130022418
    Abstract: 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: Application
    Filed: February 23, 2011
    Publication date: January 24, 2013
    Applicant: KYOCERA CORPORATION
    Inventors: Tsuyoshi Fukano, Takahito Tanibuchi, Kou Ri, Hayato Kubo, Tsuyoshi Yamasaki
  • Patent number: 8252435
    Abstract: [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: Grant
    Filed: August 30, 2007
    Date of Patent: August 28, 2012
    Assignee: Kyocera Corporation
    Inventor: Takahito Tanibuchi
  • Patent number: 8182911
    Abstract: 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: Grant
    Filed: February 27, 2007
    Date of Patent: May 22, 2012
    Assignee: Kyocera Corporation
    Inventor: Takahito Tanibuchi
  • Patent number: 8007929
    Abstract: 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: Grant
    Filed: July 20, 2005
    Date of Patent: August 30, 2011
    Assignee: Kyocera Corporation
    Inventors: Hirotoshi Itoh, Takahito Tanibuchi