Patents by Inventor Yasuyuki Kanada

Yasuyuki Kanada 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: 10875106
    Abstract: The cutting edge has: a corner cutting edge; a flat cutting edge continuous to a first end portion of the corner cutting edge; and a main cutting edge continuous to a second end portion of the corner cutting edge opposite to the first end portion of the corner cutting edge. The rake face has: a first rising surface portion; and a first rake face portion continuous to the first rising surface portion and located opposite to the corner cutting edge when viewed from the first rising surface portion. When viewed in a direction perpendicular to the reference surface, the first boundary includes a first line segment extending, from one of the flat cutting edge and the corner cutting edge, in a direction crossing a straight line extending along the main cutting edge.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: December 29, 2020
    Assignee: Sumitomo Electric Hardmetal Corp.
    Inventors: Shota Tsujimoto, Yusuke Koike, Yasuyuki Kanada, Atsuhiko Maeta, Tomoyuki Fukuyama, Yoshinari Nagami
  • Patent number: 10875105
    Abstract: A cutting edge has a corner cutting edge, a flat drag, and a main cutting edge. The rake surface has a first rake surface portion, a second rake surface portion, and a third rake surface portion. The first rake surface portion has a first inclined surface inclined at a first angle. The second rake surface portion has a second inclined surface inclined at a second angle greater than the first angle. The first end portion and the second end portion are higher than the reference surface in a direction perpendicular to the reference surface, and the main cutting edge extends so as to intersect the reference surface when viewed in a direction parallel to the reference surface. A first step portion rising from the third rake surface portion and continuous with the first rake surface portion is provided on the rake surface.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: December 29, 2020
    Assignee: Sumitomo Electric Hardmetal Corp.
    Inventors: Yusuke Koike, Yuta Morisaki, Yasuyuki Kanada, Atsuhiko Maeta, Tomoyuki Fukuyama, Yoshinari Nagami
  • Patent number: 10717136
    Abstract: The edge portion includes an upper surface, a side surface, and a land surface. The side surface has a front side surface and a pair of lateral side surfaces. An intersection between the land surface and the front side surface forms a front cutting edge. An intersection between the land surface and each of the pair of lateral side surfaces form a corresponding one of a pair of lateral cutting edges. The edge portion contains 80 vol % or more of diamond. A chip breaker recess is provided between the upper surface and the land surface. The surfaces forming the chip breaker recess include a rake face and a breaker wall surface. The upper surface has a front edge portion opposite to the front cutting edge from the chip breaker recess. A pair of protruding portions are provided to extend from the front edge portion toward the front cutting edge.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: July 21, 2020
    Assignee: Sumitomo Electric Hardmetal Corp.
    Inventors: Kouji Shimanuki, Gaku Harada, Yasuyuki Kanada
  • Patent number: 10543537
    Abstract: A method for manufacturing a machine component having a rotation symmetry plane includes machining a rotation symmetry plane. The machining a rotation symmetry plane includes determining a track of the cutting. The determining a track determines the track in accordance with a condition that (1) a first end portion of the cutting edge is positioned at a cutting start position of the rotation symmetry plane, (2) N regions defined by division of the cutting edge successively come in contact with the rotation symmetry plane, (3) an inclination of a tangent line at a point of cutting of each of the N regions is equal to a target inclination of a tangent line which passes through the point of cutting and comes in contact with the rotation symmetry plane in a cut plane of the rotation symmetry plane, and (4) a second end of the cutting edge is positioned at a cutting end position of the rotation symmetry plane.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: January 28, 2020
    Assignees: Sumitomo Electric Hardmetal Corp., Sumitomo Electric Industries, Ltd., Sumitomo Electric Tool Net, Inc.
    Inventors: Yasuyuki Kanada, Kunishige Tanaka, Soichiro Okumura, Jun Okamoto, Futoshi Takeshita
  • Patent number: 10493536
    Abstract: There is provided a rotary tool including a rotary tool body and a blade provided to the rotary tool body and having a cutting edge, the blade containing 80% by volume or more of diamond, and the blade including a land surface extending along the cutting edge, and a chip breaker having a recess located opposite to the cutting edge with the land surface therebetween.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: December 3, 2019
    Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Gaku Harada, Yasuyuki Kanada, Kouji Shimanuki
  • Publication number: 20190291187
    Abstract: A method for manufacturing a machine component includes determining a track of a cutting edge and feeding the cutting edge along the track. The determining a track includes calculating a coordinate (X(t), Y(t), Z(t)) of a first end portion of the cutting edge in accordance with X(t)=(Rsh(t)cos ?(t)?Xchip(t)), Y(t)=(Rsh(t)sin ?(t)?Ychip(t)), and Z(t)=(Zsh(t)?Zchip(t)), where a variable t assumes (N+1) values not smaller than 0 and not greater than 1. ?(t) represents an angle formed by a straight line connecting a point of cutting projected on an XY plane and an origin of the XY plane to each other with respect to an X axis, and ?(t) satisfies a condition tan ? ? ? ? ( t ) = tan ? ? ? · tan ? ? ? s - tan ? ? ? · tan 2 ? ? + tan 2 ? ? - tan 2 ? ? s tan ? ? ? · tan ? ? ? s + tan ? ? ? · tan 2 ? ? + tan 2 ? ? - tan 2 ? ? s .
    Type: Application
    Filed: February 7, 2017
    Publication date: September 26, 2019
    Inventors: Yasuyuki Kanada, Kunishige Tanaka, Shota Takemura, Soichiro Okumura, Jun Okamoto, Futoshi Takeshita
  • Publication number: 20190283148
    Abstract: A cutting insert according to the present disclosure includes a first surface, a second surface, a side surface, and a cutting edge. The first surface has a rake face continuous to the cutting edge. The cutting edge has a corner cutting edge, a flat cutting edge, and a main cutting edge. The rake face has a first rake face portion, a second rake face portion, and a third rake face portion, the first rake face portion being continuous to the flat cutting edge, the second rake face portion being continuous to the main cutting edge, the third rake face portion being continuous to the corner cutting edge and being located between the first rake face portion and the second rake face portion. The rake face is provided with a level difference portion.
    Type: Application
    Filed: November 30, 2017
    Publication date: September 19, 2019
    Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Yusuke Koike, Yasuyuki Kanada, Atsuhiko Maeta, Tomoyuki Fukuyama, Yoshinari Nagami, Yuta Morisaki
  • Publication number: 20190270141
    Abstract: A manufacturing method, a manufacturing apparatus, a computer readable recording medium, and a program for manufacturing a machine component having a rotation symmetry plane are provided.
    Type: Application
    Filed: May 20, 2019
    Publication date: September 5, 2019
    Applicants: SUMITOMO ELECTRIC HARDMETAL CORP., Sumitomo Electric Industries, Ltd., Sumitomo Electric Tool Net, Inc.
    Inventors: Yasuyuki Kanada, Kunishige Tanaka, Soichiro Okumura, Jun Okamoto, Futoshi Takeshita
  • Publication number: 20190255621
    Abstract: A cutting edge has a corner cutting edge, a flat drag, and a main cutting edge. The rake surface has a first rake surface portion, a second rake surface portion, and a third rake surface portion. The first rake surface portion has a first inclined surface inclined at a first angle. The second rake surface portion has a second inclined surface inclined at a second angle greater than the first angle. The first end portion and the second end portion are higher than the reference surface in a direction perpendicular to the reference surface, and the main cutting edge extends so as to intersect the reference surface when viewed in a direction parallel to the reference surface. A first step portion rising from the third rake surface portion and continuous with the first rake surface portion is provided on the rake surface.
    Type: Application
    Filed: December 27, 2016
    Publication date: August 22, 2019
    Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Yusuke Koike, Yuta Morisaki, Yasuyuki Kanada, Atsuhiko Maeta, Tomoyuki Fukuyama, Yoshinari Nagami
  • Patent number: 10343220
    Abstract: A method includes positioning a linear cutting edge inclined at an angle greater than 0° and smaller than 90° with respect to a Z axis at a cutting start position displaced from a position on an X axis along a direction of a Y axis in a three-dimensional orthogonal coordinate system in which an axial line of rotation of a rotation symmetry plane is defined as the Z axis, an axis in a radial direction of the rotation symmetry plane is defined as the X axis, and an axis orthogonal to both of the Z axis and the X axis is defined as the Y axis and machining the rotation symmetry plane by feeding the cutting edge from the cutting start position along a track having an X axis component, a Y axis component, and a Z axis component while the cutting edge is in contact with a rotating machine component.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: July 9, 2019
    Assignees: SUMITOMO ELECTRIC HARDMETAL CORP., Sumitomo Electric Industries, Ltd., Sumitomo electric Tool Net, Inc.
    Inventors: Yasuyuki Kanada, Kunishige Tanaka, Soichiro Okumura, Jun Okamoto, Futoshi Takeshita
  • Patent number: 10328495
    Abstract: A cutting tool according to an aspect of the present invention is a cutting tool for cutting a rotationally symmetrical surface of a rotating workpiece. The cutting includes the step of feeding the cutting tool in a direction inclined with respect to a rotational axis of the rotationally symmetrical surface, while holding the cutting tool in contact with the rotationally symmetrical surface. In the step of feeding the cutting tool, the cutting tool has a point that is in contact with the rotationally symmetrical surface and the point shifts as the cutting tool is fed. The cutting tool includes: a rake face; a flank face; and a cutting edge connecting the rake face and the flank face. The cutting edge as seen from above the flank face has a shape including at least one arc, and the arc has a radius of curvature of not less than 100 mm and not more than 500 mm.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: June 25, 2019
    Assignee: Sumitomo Electric Hardmetal Corp.
    Inventors: Yasuyuki Kanada, Kunishige Tanaka, Shota Takemura
  • Publication number: 20190176250
    Abstract: The cutting edge has: a corner cutting edge; a flat cutting edge continuous to a first end portion of the corner cutting edge; and a main cutting edge continuous to a second end portion of the corner cutting edge opposite to the first end portion of the corner cutting edge. The rake face has: a first rising surface portion; and a first rake face portion continuous to the first rising surface portion and located opposite to the corner cutting edge when viewed from the first rising surface portion. When viewed in a direction perpendicular to the reference surface, the first boundary includes a first line segment extending, from one of the flat cutting edge and the corner cutting edge, in a direction crossing a straight line extending along the main cutting edge.
    Type: Application
    Filed: January 16, 2018
    Publication date: June 13, 2019
    Applicants: SUMITOMO ELECTRIC HARDMETAL CORP., SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Shota Tsujimoto, Yusuke Koike, Yasuyuki Kanada, Atsuhiko Maeta, Tomoyuki Fukuyama, Yoshinari Nagami
  • Publication number: 20190152010
    Abstract: A method of correcting a track of a cutting edge is provided. With movement of the cutting edge, a point on the cutting edge in contact with the rotation symmetry plane is moved along the cutting edge from a first end portion of the cutting edge to a second end portion of the cutting edge opposite to the first end portion. The correction method includes measuring, by a measurement unit, a shape of the cut and machined rotation symmetry plane, calculating, by an operation unit, an error of the measured shape of the rotation symmetry plane from a target shape of the rotation symmetry plane in a direction of the axial line of rotation, and correcting, by the operation unit, a component in the direction of the axial line of rotation of a track of a point of cutting based on the error.
    Type: Application
    Filed: April 27, 2017
    Publication date: May 23, 2019
    Inventors: Yasuyuki Kanada, Kunishige Tanaka, Shota Takemura, Soichiro Okumura, Jun Okamoto, Futoshi Takeshita
  • Publication number: 20190143419
    Abstract: The edge portion includes an upper surface, a side surface, and a land surface. The side surface has a front side surface and a pair of lateral side surfaces. An intersection between the land surface and the front side surface forms a front cutting edge. An intersection between the land surface and each of the pair of lateral side surfaces form a corresponding one of a pair of lateral cutting edges. The edge portion contains 80 vol % or more of diamond. A chip breaker recess is provided between the upper surface and the land surface. The surfaces forming the chip breaker recess include a rake face and a breaker wall surface. The upper surface has a front edge portion opposite to the front cutting edge from the chip breaker recess. A pair of protruding portions are provided to extend from the front edge portion toward the front cutting edge.
    Type: Application
    Filed: March 8, 2017
    Publication date: May 16, 2019
    Applicant: SUMITOMO ELECTRIC HARDMAETAL CORP.
    Inventors: Kouji Shimanuki, Gaku Harada, Yasuyuki Kanada
  • Patent number: 10286455
    Abstract: There is provided a throw-away tip which includes a blade containing diamond and is excellent in chip processability. The throw-away tip comprises a body and a blade provided to the body and having a cutting edge, the blade containing 80% by volume or more of diamond, the blade having a land surface extending along the cutting edge, and a chip breaker having a recess located opposite to the cutting edge with the land surface therebetween, the recess having a side surface having an inclined surface that recedes continuously as a distance thereof from the land surface increases in magnitude and that has a shape identical to that of a portion of a side surface of a shape of a body of revolution.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: May 14, 2019
    Assignee: Sumitomo Electric Hardmetal Corp.
    Inventors: Yuji Tomoda, Yasuyuki Kanada, Kunishige Tanaka
  • Publication number: 20180318939
    Abstract: There is provided a rotary tool including a rotary tool body and a blade provided to the rotary tool body and having a cutting edge, the blade containing 80% by volume or more of diamond, and the blade including a land surface extending along the cutting edge, and a chip breaker having a recess located opposite to the cutting edge with the land surface therebetween.
    Type: Application
    Filed: September 7, 2016
    Publication date: November 8, 2018
    Inventors: Gaku HARADA, Yasuyuki KANADA, Kouji SHIMANUKI
  • Publication number: 20180257145
    Abstract: A method includes positioning a linear cutting edge inclined at an angle greater than 0° and smaller than 90° with respect to a Z axis at a cutting start position displaced from a position on an X axis along a direction of a Y axis in a three-dimensional orthogonal coordinate system in which an axial line of rotation of a rotation symmetry plane is defined as the Z axis, an axis in a radial direction of the rotation symmetry plane is defined as the X axis, and an axis orthogonal to both of the Z axis and the X axis is defined as the Y axis and machining the rotation symmetry plane by feeding the cutting edge from the cutting start position along a track having an X axis component, a Y axis component, and a Z axis component while the cutting edge is in contact with a rotating machine component.
    Type: Application
    Filed: December 16, 2015
    Publication date: September 13, 2018
    Inventors: Yasuyuki Kanada, Kunishige Tanaka, Soichiro Okumura, Jun Okamoto, Futoshi Takeshita
  • Publication number: 20180221964
    Abstract: A cutting tool for cutting a rotationally symmetrical surface of a rotating workpiece includes the step of feeding the cutting tool in a direction inclined with respect to a rotational axis of the rotationally symmetrical surface, while holding the cutting tool in contact with the rotationally symmetrical surface. In the step of feeding the cutting tool, the cutting tool has a point that is in contact with the rotationally symmetrical surface and the point shifts as the cutting tool is fed. The cutting tool includes: a rake face; a flank face; and a cutting edge connecting the rake face and the flank face. The cutting edge as seen from above the flank face has a shape including at least one arc, and the arc has a radius of curvature of not less than 100 mm and not more than 500 mm.
    Type: Application
    Filed: January 31, 2017
    Publication date: August 9, 2018
    Inventors: Yasuyuki Kanada, Kunishige Tanaka, Shota Takemura
  • Publication number: 20180200802
    Abstract: A method for manufacturing a machine component having a rotation symmetry plane includes machining a rotation symmetry plane. The machining a rotation symmetry plane includes determining a track of the cutting. The determining a track determines the track in accordance with a condition that (1) a first end portion of the cutting edge is positioned at a cutting start position of the rotation symmetry plane, (2) N regions defined by division of the cutting edge successively come in contact with the rotation symmetry plane, (3) an inclination of a tangent line at a point of cutting of each of the N regions is equal to a target inclination of a tangent line which passes through the point of cutting and comes in contact with the rotation symmetry plane in a cut plane of the rotation symmetry plane, and (4) a second end of the cutting edge is positioned at a cutting end position of the rotation symmetry plane.
    Type: Application
    Filed: July 7, 2016
    Publication date: July 19, 2018
    Inventors: Yasuyuki Kanada, Kunishige Tanaka, Soichiro Okumura, Jun Okamoto, Futoshi Takeshita
  • Patent number: D821461
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: June 26, 2018
    Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Yasuyuki Kanada, Kunishige Tanaka, Yuji Tomoda