Patents by Inventor Kazuya Yanagida

Kazuya Yanagida 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: 10471522
    Abstract: A drill has a thinning rake face formed in the front end. An intersection ridgeline between the thinning rake face and the tip flank face is the thinning edge. On the opposite side of the rotation direction, the first and second thinning wall surfaces (6b, 6c) and are formed. Viewed from the front, an intersection angle between the thinning edge (4a) and the first thinning ridgeline is larger than 95°. The second thinning ridgeline (L2) is bent to the opposite side of the rotation direction. The thinning edge and the first thinning ridgeline are connected via a concave curve line. The first and second thinning wall surfaces are connected via a concave surface, and a curvature radius of the concave curve line is smaller than a curvature radius of the concave surface.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: November 12, 2019
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Tadashi Yamamoto, Kazuya Yanagida, Yuya Tsurumaki
  • Publication number: 20190305283
    Abstract: A protector includes a plurality of lead-out openings through which electric cables are configured to be led out, and an electric cable attachment part which is provided in a projecting manner at an opening edge part of the lead-out opening and to which the electric cables are configured to be attached through a hinge part with flexibility. The electric cable attachment part is bent toward the lead-out opening by the hinge part, and a bent state thereof is configured to be held by a holding part.
    Type: Application
    Filed: March 21, 2019
    Publication date: October 3, 2019
    Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Taiji YANAGIDA, Hiroki SHIMODA, Yoshinori ITO, Yoshihiro MAEDA, Fumihiko ICHIKAWA, Kazuya TSUCHIYA, Yuki OGAWA
  • Publication number: 20180236568
    Abstract: A drill has a thinning rake face formed in the front end. An intersection ridgeline between the thinning rake face and the tip flank face is the thinning edge. On the opposite side of the rotation direction, the first and second thinning wall surfaces (6b, 6c) and are formed. Viewed from the front, an intersection angle between the thinning edge (4a) and the first thinning ridgeline is larger than 95°. The second thinning ridgeline (L2) is bent to the opposite side of the rotation direction. The thinning edge and the first thinning ridgeline are connected via a concave curve line. The first and second thinning wall surfaces are connected via a concave surface, and a curvature radius of the concave curve line is smaller than a curvature radius of the concave surface.
    Type: Application
    Filed: August 29, 2016
    Publication date: August 23, 2018
    Applicants: MITSUBISHI MATERIALS CORPORATION, MITSUBISHI MATERIALS CORPORATION
    Inventors: Tadashi Yamamoto, Kazuya Yanagida, Yuya Tsurumaki
  • Publication number: 20170274461
    Abstract: A drill comprising: a drill main body; a chip discharge flute; and a tip cutting edge. The tip cutting edge includes: a first tip cutting edge which extends toward the axially posterior end as it goes toward the outside in a radial direction; and a second tip cutting edge which is disposed outside the first tip cutting edge in the radial direction. The second tip cutting edge extends toward the tip in the axis direction as it goes toward the outside in the radial direction or extends to be perpendicular to the axis. The radially inner end of the second tip cutting edge is disposed on the axially posterior end with respect to the radially outer end of the first tip cutting edge. The radially outer end of the second tip cutting edge is disposed on a virtual extension line of the first tip cutting edge.
    Type: Application
    Filed: September 28, 2015
    Publication date: September 28, 2017
    Applicant: MITSUBISHI MATERIALS CORPORATION
    Inventors: Masayuki Mabuchi, Koichiro Naruke, Souhei Takahashi, Takahiro Hibi, Tadashi Yamamoto, Kazuya Yanagida
  • Patent number: 9352399
    Abstract: A drill comprises a drill body that is rotatable on an axis. Chip evacuating flutes, which are open on front flanks of the drill body and are extended rearwards, are formed in a periphery of the drill body on its front side. Cutting edges are formed along ridge lines where the front flanks intersect with wall surfaces of the chip evacuating flutes facing a drill rotating direction. At least first and second front flanks are formed on the front flanks in order of their locations in the drill rotating direction from its leading side to its trailing side. A clearance angle of the second front flank is greater than that of the first front flank. Intersection lines of the first and second front flanks cross the cutting edges.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: May 31, 2016
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Kazuya Yanagida, Koichiro Naruke
  • Patent number: 9216460
    Abstract: A coolant-hole equipped drill includes a drill main body, a cutting edge portion which has a tip flank, a chip discharging groove provided with a front groove wall surface and a rear groove wall surface, a cutting edge formed at a ridge line portion where the front groove wall surface and the tip flank intersect with each other, a land portion formed between the chip discharging grooves adjacent to each other in the rotating direction, and a coolant hole drilled at the land portion and opened at the tip flank. The coolant hole includes a front hole wall surface, a rear hole wall surface, and an outer-circumference hole wall surface.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: December 22, 2015
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Nobuyuki Matsuda, Hiroyuki Higashi, Koichiro Naruke, Tadashi Yamamoto, Kazuya Yanagida
  • Patent number: 8876445
    Abstract: A guide portion prevents the drilling hole from curving due to a skipping rope phenomenon, and also prevents the inner wall face of the drilling hole from being damaged, so that its surface roughness can be improved. Chip evacuating flutes 4 are formed in the periphery of a drill body 1 which has a stick shape and is rotatable on its axis O, from its front flank 3 toward the rear side. Cutting edges 2A are formed along ridge lines where the front flanks 3 intersect with wall faces 4A which are in the chip evacuating flutes 4 and face in a drill rotational direction T. A cutting edge section 2, where the cutting edges 2A are formed, is provided in the front side of the drill body 1. A cutting edge section 2 has an external diameter which is smaller toward the rear side in the axis O direction than the external diameter D at the cutting edges 2A. A guide portion 6 has a maximum external diameter part 6A at the front periphery side, and is provided to the rear side of the cutting edge section 2.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: November 4, 2014
    Assignee: Mitsubishi Materials Corporation
    Inventors: Kazuya Yanagida, Koichiro Naruke
  • Publication number: 20140023448
    Abstract: A drill comprises a drill body that is rotatable on an axis. Chip evacuating flutes, which are open on front flanks of the drill body and are extended rearwards, are formed in a periphery of the drill body on its front side. Cutting edges are formed along ridge lines where the front flanks intersect with wall surfaces of the chip evacuating flutes facing a drill rotating direction. At least first and second front flanks are formed on the front flanks in order of their locations in the drill rotating direction from its leading side to its trailing side. A clearance angle of the second front flank is greater than that of the first front flank. Intersection lines of the first and second front flanks cross the cutting edges.
    Type: Application
    Filed: April 11, 2012
    Publication date: January 23, 2014
    Applicant: MITSUBISHI MATERIALS CORPORATION
    Inventors: Kazuya Yanagida, Koichiro Naruke
  • Publication number: 20120082524
    Abstract: A coolant-hole equipped drill includes a drill main body, a cutting edge portion which has a tip flank, a chip discharging groove provided with a front groove wall surface and a rear groove wall surface, a cutting edge formed at a ridge line portion where the front groove wall surface and the tip flank intersect with each other, a land portion formed between the chip discharging grooves adjacent to each other in the rotating direction, and a coolant hole drilled at the land portion and opened at the tip flank. The coolant hole includes a front hole wall surface, a rear hole wall surface, and an outer-circumference hole wall surface.
    Type: Application
    Filed: June 15, 2010
    Publication date: April 5, 2012
    Applicant: Mitsubishi Materials Corporation
    Inventors: Nobuyuki Matsuda, Hiroyuki Higashi, Koichiro Naruke, Tadashi Yamamoto, Kazuya Yanagida
  • Publication number: 20110211924
    Abstract: A guide portion prevents the drilling hole from curving due to a skipping rope phenomenon, and also prevents the inner wall face of the drilling hole from being damaged, so that its surface roughness can be improved. Chip evacuating flutes 4 are formed in the periphery of a drill body 1 which has a stick shape and is rotatable on its axis O, from its front flank 3 toward the rear side. Cutting edges 2A are formed along ridge lines where the front flanks 3 intersect with wall faces 4A which are in the chip evacuating flutes 4 and face in a drill rotational direction T. A cutting edge section 2, where the cutting edges 2A are formed, is provided in the front side of the drill body 1. A cutting edge section 2 has an external diameter which is smaller toward the rear side in the axis O direction than the external diameter D at the cutting edges 2A. A guide portion 6 has a maximum external diameter part 6A at the front periphery side, and is provided to the rear side of the cutting edge section 2.
    Type: Application
    Filed: September 4, 2009
    Publication date: September 1, 2011
    Applicant: MITSUBISHI MATERIALS CORPORATION
    Inventors: Kazuya Yanagida, Koichiro Naruke
  • Patent number: 7762748
    Abstract: A plurality of cutting oil feed holes extend from the proximal side towards the distal side are provided in a drill body located on a reference line that extends towards a circumferential central portion of an outer circumferential surface of the drill body split by a chip discharge groove from an axis in a cross section orthogonal to the axis. A cutting oil feed hole that is located on the radial outermost side is used as a first cutting oil feed hole, and a cutting oil feed hole that is on the radial innermost side is used as a second cutting oil feed hole. Two or more openings of the cutting oil feed holes are provided in one cutting edge as the plurality of cutting oil feed holes are formed in the vicinity of the intersection ridgeline portion between the distal flank face and the second thinned face.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: July 27, 2010
    Assignee: Mitsubishi Materials Corporation
    Inventors: Kazuya Yanagida, Masayuki Mabuchi, Hiroyuki Higashi
  • Publication number: 20080131221
    Abstract: A plurality of cutting oil feed holes extend from the proximal side towards the distal side are provided in a drill body located on a reference line that extends towards a circumferential central portion of an outer circumferential surface of the drill body split by a chip discharge groove from an axis in a cross section orthogonal to the axis. A cutting oil feed hole that is located on the radial outermost side is used as a first cutting oil feed hole, and a cutting oil feed hole that is on the radial innermost side is used as a second cutting oil feed hole. Two or more openings of the cutting oil feed holes are provided in one cutting edge as the plurality of cutting oil feed holes are formed in the vicinity of the intersection ridgeline portion between the distal flank face and the second thinned face.
    Type: Application
    Filed: December 3, 2007
    Publication date: June 5, 2008
    Applicant: Mitsubishi Materials Corporation
    Inventors: Kazuya Yanagida, Masayuki Mabuchi, Hiroyuki Higashi
  • Patent number: 7306411
    Abstract: In a drill in which a chip discharge groove twisted in the shape of a spiral relative to an axis is formed in the outer periphery of the tip section of a roughly cylindrical drill body that rotates around the axis, and a cutting edge is formed on the intersecting ridgeline between a wall surface facing in the direction of drill rotation of this chip discharge groove and a tip flank of the drill body, together with the section on the tip side of the chip discharge groove continuous with the cutting edge being a narrowed width section in which the helix angle relative to the axis and groove width are constant, a wide width section is formed in the chip discharge groove farther towards the rear end than this narrow width section, in which the helix angle is equal to the narrow width section and in which the groove width is widened relative to the narrow width section in the direction of drill rotation and towards the rear in the direction of drill rotation and has a constant width.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: December 11, 2007
    Assignee: Mitsubishi Materials Corporation
    Inventors: Masayuki Mabuchi, Kazuya Yanagida, Katsuyuki Suzuki, Syoji Takiguchi
  • Patent number: 6916139
    Abstract: The present invention provides a drill comprising: a drill main body rotatable about an axis of rotation, and having a tip end with a tip flank and a shank; a chip discharge flute formed on a periphery of the drill main body, and extending from the tip end toward the shank of the drill main body; and a cutting edge formed along an intersecting ridge where a wall surface of the chip discharge flute facing in the direction of drill rotation intersects the tip flank of the drill main body, wherein the cutting edge comprises a convex cutting edge toward the periphery and a concave cutting edge smoothly extending from the convex cutting edge.
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: July 12, 2005
    Assignee: Mitsubishi Materials Corporation
    Inventors: Kazuya Yanagida, Shoji Takiguchi, Katsuyuki Suzuki, Takeshi Inoue
  • Publication number: 20040101379
    Abstract: In a drill in which a chip discharge groove twisted in the shape of a spiral relative to an axis is formed in the outer periphery of the tip section of a roughly cylindrical drill body that rotates around the axis, and a cutting edge is formed on the intersecting ridgeline between a wall surface facing in the direction of drill rotation of this chip discharge groove and a tip flank of the drill body, together with the section on the tip side of the chip discharge groove continuous with the cutting edge being a narrowed width section in which the helix angle relative to the axis and groove width are constant, a wide width section is formed in the chip discharge groove farther towards the rear end than this narrow width section, in which the helix angle is equal to the narrow width section and in which the groove width is widened relative to the narrow width section in the direction of drill rotation and towards the rear in the direction of drill rotation and has a constant width.
    Type: Application
    Filed: August 29, 2003
    Publication date: May 27, 2004
    Applicant: MITSUBISHI MATERIALS CORPORATION
    Inventors: Masayuki Mabuchi, Kazuya Yanagida, Katsuyuki Suzuki, Syoji Takiguchi
  • Publication number: 20030039522
    Abstract: The present invention provides a drill comprising: a drill main body rotatable about an axis of rotation, and having a tip end with a tip flank and a shank; a chip discharge flute formed on a periphery of the drill main body, and extending from the tip end toward the shank of the drill main body; and a cutting edge formed along an intersecting ridge where a wall surface of the chip discharge flute facing in the direction of drill rotation intersects the tip flank of the drill main body, wherein the cutting edge comprises a convex cutting edge toward the periphery and a concave cutting edge smoothly extending from the convex cutting edge.
    Type: Application
    Filed: March 26, 2002
    Publication date: February 27, 2003
    Inventors: Kazuya Yanagida, Syoji Takiguchi, Katsuyuki Suzuki, Takeshi Inoue
  • Patent number: 6071601
    Abstract: The present invention provide for a cutting tool member that has been coated with a hard coating. The hard coating has multiple layers including: a) a layer made of a titanium compound that has a cubic lattice structure, b) an Al.sub.2 O.sub.3 layer, and c) an intervening layer that includes a Ti.sub.2 O.sub.3 compound with a corundum-type lattice structure. The hard coating layer provides the cutting tool member with good strength and increases its operational lifetime.
    Type: Grant
    Filed: May 12, 1998
    Date of Patent: June 6, 2000
    Assignee: Mitsubishi Materials Corporation
    Inventors: Takatoshi Oshika, Kouichi Yuri, Tetsuhiko Honma, Eiji Nakamura, Atsushi Nagamine, Kazuya Yanagida
  • Patent number: D602054
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: October 13, 2009
    Assignee: Mitsubishi Materials Corporation
    Inventors: Kazuya Yanagida, Hiroyuki Higashi, Nobuyuki Matsuda
  • Patent number: D602055
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: October 13, 2009
    Assignee: Mitsubishi Materials Corporation
    Inventors: Kazuya Yanagida, Hiroyuki Higashi, Nobuyuki Matsuda