Patents by Inventor Satoru Kukino

Satoru Kukino 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).

  • CUTTING TOOL AND MANUFACTURING METHOD THEREOF
    Publication number: 20190054544
    Abstract: A cutting tool according to an aspect of the present disclosure includes a cutting edge portion which contains at least one of cubic boron nitride and polycrystalline diamond. The cutting edge portion includes a rake face, a flank face, and a cutting edge. The flank face is contiguous to the rake face. The cutting edge is provided as a ridge line between the rake face and the flank face. The radius of curvature of the cutting edge is 2 ?m or more and 8 ?m or less.
    Type: Application
    Filed: August 24, 2017
    Publication date: February 21, 2019
    Inventors: Gaku Harada, Yoshinori Tanigawa, Satoru Kukino
  • CUTTING TOOL AND MANUFACTURING METHOD THEREOF
    Publication number: 20190054545
    Abstract: A cutting tool according to an aspect of the present disclosure includes a cutting edge portion which contains at least one of cubic boron nitride and polycrystalline diamond. The cutting edge portion includes a flank face, a negative land contiguous to the flank face, and a cutting edge formed by a ridgeline between the flank face and the negative land. At least one of the negative land and the flank face is provided with a plurality of recesses and a projection. The projection is formed by arranging the edges of adjacent recesses in contact with each other.
    Type: Application
    Filed: August 25, 2017
    Publication date: February 21, 2019
    Inventors: Gaku Harada, Yoshinori Tanigawa, Satoru Kukino
  • CUTTING TOOL
    Publication number: 20190001423
    Abstract: A cutting tool includes a shaft portion and a plurality of edge region groups. The ridgeline between the first rake face portion and the first flank face portion constitutes a first cutting edge portion. The ridgeline between the second rake face portion and the second flank face portion constitutes a second cutting edge portion. As seen from the direction perpendicular to a plane tangent to the outer peripheral surface, in a state where the central axis overlaps a first end on the front end side of the first cutting edge portion, the inclination angle of the first cutting edge portion relative to the central axis is larger than the inclination angle of a straight line relative to the central axis, the straight line connecting the first end to a second end on the front end side of the second cutting edge portion.
    Type: Application
    Filed: November 15, 2016
    Publication date: January 3, 2019
    Applicants: SUMITOMO ELECTRIC HARDMETAL CORP., Sumitomo Electric Industries, Ltd.
    Inventors: Yusuke Matsuda, Taisuke Higashi, Satoru Kukino, Takashi Kanda
  • SINTERED MATERIAL AND CUTTING TOOL INCLUDING SAME
    Publication number: 20190002354
    Abstract: A sintered material includes cubic boron nitride grains and a binder, a grain size D50 of the cubic boron nitride grains when a cumulative value of the cubic boron nitride grains is 50% in an area-based grain size distribution being more than 0.5 ?m and less than or equal to 5 ?m, more than or equal to 70 volume % and less than or equal to 98 volume % of the cubic boron nitride grains being included in the sintered material, the binder being composed of A1-xCrxN, where 0?x?1, and a remainder, the remainder being composed of at least one of a first element and a compound including the first element and a second element, the first element being one or more elements selected from a group consisting of W, Co, Ni, Mo, Al, and Cr, the second element being one or more elements selected from a group consisting of nitrogen, carbon, oxygen, and boron.
    Type: Application
    Filed: August 17, 2017
    Publication date: January 3, 2019
    Inventors: Kazushi Takahama, Yusuke Matsuda, Satoru Kukino
  • CUTTING TOOL
    Publication number: 20180369924
    Abstract: A cutting tool according to one aspect of the present disclosure includes an attaching portion, a cutting portion having a core portion and a surface portion, and a joint portion. The attaching portion includes a hard component and a hard material. The hard component is at least one selected from the group consisting of TiC, TiCN, W, WC, Al2O3, and a combination of at least one of CBN and diamond and at least one of W and WC. The hard material includes one or two or more types of iron group elements, and has a Young's modulus of not more than 350 GPa. The core portion includes a cemented carbide material. The surface portion includes PCD or CBN. The cutting portion has a chamfer portion. The surface portion includes a groove, a flank face, and a cutting edge. The cutting edge extends toward the attaching portion.
    Type: Application
    Filed: November 15, 2016
    Publication date: December 27, 2018
    Applicants: SUMITOMO ELECTRIC HARDMETAL CORP., Sumitomo Electric Industries, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Taisuke Higashi, Yusuke Matsuda, Satoru Kukino, Takashi Kanda, Katsumi Okamura
  • CUTTING TOOL
    Publication number: 20180361485
    Abstract: A cutting tool according to an aspect of the present disclosure includes a shank, a joint, and a cutting portion attached through the joint to the shank. The cutting portion includes a core and a surface portion. The surface portion is disposed around a central axis of the cutting portion to cover an outer circumferential surface of the core. The surface portion includes a cutting edge. The cutting edge is disposed on an outer circumferential surface of the surface portion and formed in a helical shape about the central axis. The surface portion is a composite sintered material including a hard phase formed of a plurality of diamond particles and a plurality of cubic boron nitride particles, and a binder phase forming the remainder.
    Type: Application
    Filed: November 15, 2016
    Publication date: December 20, 2018
    Inventors: Yusuke Matsuda, Taisuke Higashi, Satoru Kukino, Takashi Kanda, Katsumi Okamura
  • ROTARY CUTTING BLADE MATERIAL AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20180345380
    Abstract: A rotary cutting blade material has an attaching structure forming portion that is to serve as an attaching portion to the shank, a cutting structure forming portion that is to serve as a cutting blade, and a joint portion. The cutting structure forming portion has a core portion and a surface portion provided on the attaching structure forming portion with the joint portion being interposed, and the surface portion covers at least a part of a surface of the core portion. The attaching structure forming portion includes a hard material including a hard component and one or two or more types of iron group elements, and the hard material has a Young's modulus of not more than 350 GPa. The core portion includes a cemented carbide material, and the surface portion includes PCD or CBN.
    Type: Application
    Filed: August 10, 2017
    Publication date: December 6, 2018
    Inventors: Taisuke Higashi, Satoru Kukino
  • SINTERED MATERIAL, TOOL INCLUDING SINTERED MATERIAL, AND SINTERED MATERIAL PRODUCTION METHOD
    Publication number: 20180297899
    Abstract: To provide a sintered material having excellent oxidation resistance, as well as excellent abrasion resistance and chipping resistance. A sintered material containing a first compound formed of Ti, Al, Si, O, and N is provided.
    Type: Application
    Filed: June 21, 2018
    Publication date: October 18, 2018
    Inventors: Hironari Moroguchi, Takashi Harada, Satoru Kukino
  • SINTERED BODY AND CUTTING TOOL
    Publication number: 20180236562
    Abstract: A sintered body includes cubic boron nitride grains as hard phase grains, and has a thermal conductivity of not less than 15 W·m?1·K?1 and not more than 40 W·m?1·K?1, for cutting a nickel-based heat-resistant alloy formed of crystal grains having a fine grain size represented by a grain size number of more than 5 defined by ASTM standard E112-13. A cutting tool includes this sintered body. Accordingly, the sintered body having both high wear resistance and high fracture resistance, as well as the cutting tool including the sintered body are provided.
    Type: Application
    Filed: April 20, 2018
    Publication date: August 23, 2018
    Inventors: Kentaro Chihara, Satoru Kukino
  • SINTERED BODY AND CUTTING TOOL
    Publication number: 20180236561
    Abstract: A sintered body includes cubic boron nitride grains as hard phase grains, and has a thermal conductivity of less than 20 W·m?1·K?1, for cutting a nickel-based heat-resistant alloy formed of crystal grains having a coarse grain size represented by a grain size number of 5 or less defined by ASTM standard E112-13. A cutting tool includes this sintered body. Accordingly, the sintered body having high fracture resistance in addition to high wear resistance, as well as the cutting tool including the sintered body are provided.
    Type: Application
    Filed: April 20, 2018
    Publication date: August 23, 2018
    Inventors: Kentaro Chihara, Satoru Kukino
  • SINTERED MATERIAL AND CUTTING TOOL INCLUDING SAME
    Publication number: 20180215669
    Abstract: A sintered material includes a first material and a second material, the first material being partially stabilized ZrO2 having a crystal grain boundary or crystal grain in which 5 to 90 volume % of Al2O3 is dispersed with respect to a whole of the first material, the second material including at least one of SiAlON, silicon nitride and titanium nitride, the sintered material including 1 to 50 volume % of the first material.
    Type: Application
    Filed: January 5, 2017
    Publication date: August 2, 2018
    Inventors: Kentaro Chihara, Satoru Kukino, Akito Ishii
  • Sintered material, tool including sintered material, and sintered material production method
    Patent number: 10029948
    Abstract: To provide a sintered material having excellent oxidation resistance, as well as excellent abrasion resistance and chipping resistance. A sintered material containing a first compound formed of Ti, Al, Si, O, and N is provided.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: July 24, 2018
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Hironari Moroguchi, Takashi Harada, Satoru Kukino
  • Hard material, sintered material, tool including sintered material, manufacturing method of hard material, and manufacturing method of sintered material
    Patent number: 10023499
    Abstract: A hard material which, when used as a material of a sintered material, makes it possible to obtain a sintered material with excellent abrasion resistance, a sintered material, a cutting tool including the sintered material, a method for manufacturing the hard material and a method for manufacturing the sintered material are provided. The hard material contains aluminum, nitrogen, and at least one element selected from the group consisting of titanium, chromium, and silicon, and has a cubic rock salt structure.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: July 17, 2018
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Takashi Harada, Akito Ishii, Satoru Kukino
  • Sintered body and cutting tool including the same
    Patent number: 9988315
    Abstract: A sintered body of the present invention is a sintered body including a first material and cubic boron nitride. The first material is partially-stabilized ZrO2 including 5 to 90 volume % of Al2O3 dispersed in crystal grain boundaries or crystal grains of partially-stabilized ZrO2.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: June 5, 2018
    Assignees: Sumitomo Electric Industries, Ltd., SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Akito Ishii, Takashi Harada, Katsumi Okamura, Satoru Kukino
  • Sintered compact and cutting tool
    Patent number: 9988314
    Abstract: A sintered compact has a first material, a second material, and a third material. The first material is cubic boron nitride. The second material is a compound including zirconium. The third material is an aluminum oxide and the aluminum oxide includes a fine-particle aluminum oxide. The sintered compact has a first region in which not less than 5 volume % and not more than 50 volume % of the fine-particle aluminum oxide is dispersed in the second material. On arbitrary straight lines in the first region, an average value of continuous distances occupied by the fine-particle aluminum oxide is not more than 0.08 ?m and a standard deviation of the continuous distances occupied by the fine-particle aluminum oxide is not more than 0.1 ?m.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: June 5, 2018
    Assignees: SUMITOMO ELECTRIC HARDMETAL CORP., Sumitomo Electric Industries, Ltd.
    Inventors: Mayu Danda, Katsumi Okamura, Satoru Kukino
  • CERAMIC POWDER AND BORON NITRIDE SINTERED MATERIAL
    Publication number: 20180044248
    Abstract: A ceramic powder containing at least one of a nitride and a carbonitride of a metal element as a major component, the metal element being one or more elements selected from the group consisting of a group 4 element, a group 5 element and a group 6 element, the ceramic powder having particles having an average particle size of 5 ?m or less, and an oxygen content of 0.3% by mass or less.
    Type: Application
    Filed: March 4, 2016
    Publication date: February 15, 2018
    Inventors: Takashi Harada, Satoru Kukino
  • Sintered compact and cutting tool
    Patent number: 9856175
    Abstract: A sintered compact according to the present invention includes: a first material that is cubic boron nitride; a second material that is an oxide of zirconium; and a third material that is an oxide of aluminum, the second material including cubic ZrO2 and ZrO, the third material including ?-Al2O3, and the sintered compact satisfying the following relation: 0.9?Izro2(111)/Ial(110)?30; and 0.3?Izro(111)/Ial(110)?3, where Ial(110), Izro2(111), and Izro(111) respectively represent X-ray diffraction intensities of a (110) plane of the ?-Al2O3, a (111) plane of the cubic ZrO2, and a (111) plane of the ZrO.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: January 2, 2018
    Assignees: SUMITOMO ELECTRIC HARDMETAL CORP., Sumitomo Electric Industries, Ltd.
    Inventors: Katsumi Okamura, Mayu Danda, Satoru Kukino
  • SINTERED BODY
    Publication number: 20170341153
    Abstract: A sintered body includes a first hard particle, a second hard particle, and a binder. The first hard particle is an M sialon particle having a coating layer. The M sialon particle is represented by MxSi(6?x?z)AlzOzN(8?z) (in the formula, M is a metal containing at least one selected from the group consisting of calcium, strontium, barium, scandium, yttrium, lanthanoid, manganese, iron, cobalt, nickel, copper, and group IV, group V, and group VI elements of the periodic table, and relationships of 0.01?x?2, 0.01?z?4.2, and 1.79?(6?x?z)?5.98 are satisfied). The second hard particle is a cubic boron nitride particle.
    Type: Application
    Filed: October 14, 2015
    Publication date: November 30, 2017
    Inventors: Kentaro Chihara, Hironari Moroguchi, Takashi Harada, Satoru Kukino
  • SINTERED MATERIAL, CUTTING TOOL USING SINTERED MATERIAL, AND METHOD OF PRODUCING SINTERED MATERIAL
    Publication number: 20170297118
    Abstract: There are provided: a sintered material having an excellent wear resistance even under a high speed cutting condition; a tool using the sintered material; and a method of producing the sintered material. The sintered material includes: a first particle group including a particle having a cubic rock-salt structure represented by Al(1-x)CrxN (formula (1)) (where x satisfies 0.2?x?0.8); and a second particle group including a particle of at least one first compound selected from a group consisting of oxide and oxynitride of aluminum, zirconium, yttrium, magnesium, and hafnium.
    Type: Application
    Filed: September 29, 2015
    Publication date: October 19, 2017
    Inventors: Akito Ishii, Satoru Kukino, Takashi Harada
  • SINTERED MATERIAL, TOOL INCLUDING SINTERED MATERIAL, AND SINTERED MATERIAL PRODUCTION METHOD
    Publication number: 20170253531
    Abstract: To provide a sintered material having excellent oxidation resistance, as well as excellent abrasion resistance and chipping resistance. A sintered material containing a first compound formed of Ti, Al, Si, O, and N is provided.
    Type: Application
    Filed: August 21, 2015
    Publication date: September 7, 2017
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Hironari MOROGUCHI, Takashi HARADA, Satoru KUKINO