Patents by Inventor Kouji Yamane

Kouji Yamane 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: 10899118
    Abstract: FF properties of a multilayer coating film configured to exhibit a warm color through a lustrous layer (14) and a translucent colored layer (15) are improved to achieve a metallic textured color having a high-quality color tone. The lustrous layer (14) is configured such that Y(10°) is 50 or more and 950 or less and that Y(25°) is 0.05 or more and 0.35 or less times the Y(10°), where Y(10°) represents a Y value, of an XYZ color system, of reflected light measured at a light receiving angle of 10° and Y(25°) represents a Y value of the reflected light measured at the light receiving angle of 25° in a case where a light incident angle is 45°. A concentration C of a warm color pigment of the colored layer (15) is 1% by mass or more and 17% by mass or less.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: January 26, 2021
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Takakazu Yamane, Keiichi Okamoto, Kouji Teramoto, Ryuji Nonaka
  • Patent number: 10882074
    Abstract: FF properties of a multilayer coating film configured to exhibit a red color through a lustrous layer (14) and a translucent colored layer (15) are improved to achieve a metallic textured color having a high-quality color tone. The lustrous layer (14) is configured such that Y(10°) is 50 or more and 950 or less and that Y(25°) is 0.05 or more and 0.35 or less times the Y(10°), where Y(10°) represents a Y value, of an XYZ color system, of reflected light measured at a light receiving angle of 10° and Y(25°) represents a Y value of the reflected light measured at the light receiving angle of 25° in a case where a light incident angle is 45°. An inclination of a tangent to the spectrum of the spectral transmittance of the colored layer (15) at the wavelength of 620 nm is 0.012 nm?1 or more and 0.03 nm?1 or less, defined as an absolute value.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: January 5, 2021
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Takakazu Yamane, Keiichi Okamoto, Kouji Teramoto, Ryuji Nonaka
  • Publication number: 20200384514
    Abstract: The production method of a seamless steel pipe includes a heating step of heating an Nb-containing steel material to 800 to 1030° C., a pipe-making step of producing a hollow shell by performing piercing-rolling or elongation-rolling on the Nb-containing steel material, by using a piercing mill including a plurality of skewed rolls, a plug disposed between the plurality of skewed rolls, and a mandrel bar, and a cooling step immediately after rolling, of carrying out cooling using a cooling liquid on a hollow shell portion that passes between rear ends of the plurality of skewed rolls, in the hollow shell, so as to reduce an outer surface temperature of the hollow shell portion to 700 to 1000° C. within 15.0 seconds after the hollow shell portion passes between the rear ends of the plurality of skewed rolls.
    Type: Application
    Filed: November 28, 2018
    Publication date: December 10, 2020
    Inventors: Kouji YAMANE, Kazuhiro SHIMODA, Yuji ARAI, Akihiro SAKAMOTO, Yasuhiko DAIMON, Haruka OBE
  • Publication number: 20200354589
    Abstract: In a coated article including a laminated coating film configured such that a first base layer 3 containing a lustrous material 11 and a second base layer 4 and a transparent clear layer 5 containing an organic pigment 15 are stacked on each other in this order on a coating target object, the same type of organic ultraviolet absorbing agent 13 having a molecular weight of equal to or greater than 500 is added to the first base layer 3 and the second base layer 4.
    Type: Application
    Filed: January 30, 2018
    Publication date: November 12, 2020
    Applicants: NIPPON PAINT AUTOMOTIVE COATINGS CO., LTD., MAZDA MOTOR CORPORATION
    Inventors: Eiji YAMANAKA, Masaharu ARASHI, Hiroshi KIYONAGA, Hideaki TSUJIOKA, Takakazu YAMANE, Kouji TERAMOTO
  • Publication number: 20200353505
    Abstract: A multilayer coating film includes a colored base layer 14 formed directly or indirectly on a surface of a coating target 11, and a luster material-containing layer 15 layered on the colored base layer 14 and containing flaked luster materials 22 and a colorant 23. With respect to the luster material-containing layer 15 in a state without the colorant, Y(10°) of the XYZ color system is set to be 50 or more and 850 or less, and Y(20°) is set to be equal to k×Y(10°), where k is in a range of 0.2?k?0.6 and is determined according to the Y(10°). The colorant concentration C of the luster material-containing layer is determined according to k. The surface reflectance R(%) of the colored base layer is determined according to the colorant concentration C of the luster material-containing layer and the Y(10°).
    Type: Application
    Filed: January 23, 2018
    Publication date: November 12, 2020
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takakazu YAMANE, Kouji TERAMOTO, Fumi HIRANO, Keiichi OKAMOTO
  • Patent number: 10676622
    Abstract: FF properties of a multilayer coating film configured to exhibit a warm color through a lustrous layer (14) and a translucent colored layer (15) are improved to achieve a metallic textured color having a high-quality color tone. The lustrous layer (14) contains, in a mixed state, a high-reflection flake (21) having a visible light reflectance of 90 % or more and a low-reflection flake (22) having a visible light reflectance that is half (i.e., ½) or smaller than the visible light reflectance of the high-reflection flake (21) as the luster material. When both of the high-reflection flake (21) and the low-reflection flake (22) are projected on a bottom of the lustrous layer (14), a ratio of a projected area of the flakes (21) and (22) on the bottom of the lustrous layer (14) is 100 %.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: June 9, 2020
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Takakazu Yamane, Keiichi Okamoto, Kouji Teramoto, Ryuji Nonaka
  • Publication number: 20200156132
    Abstract: A method for producing a seamless metal pipe includes the steps of: preparing a billet having a diameter (B); heating the billet; forming, in a center part of a rear end of the heated billet, a hole including four grooves extending in an axial direction of the billet, the grooves each having a groove width (D) satisfying Formula (1), a groove height (H) satisfying Formula (2), and a groove depth (L1) satisfying Formula (3); and subjecting the billet provided with the hole to piercing-rolling from a front end thereof by means of a piercing machine. By this means, the generation of burrs and internal defects at the rear end of a hollow shell after piercing-rolling can be suppressed. 0.12?D/B?0.25 ??(1) 0.10?H/B?0.20 ??(2) 0.05?L1/B?0.
    Type: Application
    Filed: June 8, 2018
    Publication date: May 21, 2020
    Inventors: Kouji Yamane, Kazuhiro Shimoda, Yuji Inoue, Shusuke Shimooka, Yuichi Yamanari
  • Publication number: 20190300979
    Abstract: The seamless steel pipe of the present embodiment consists of in mass %, C: 0.21 to 0.35%, Si: 0.10 to 0.50%, Mn: 0.05 to 1.00%, P: 0.025% or less, S: 0.010% or less, Al: 0.005 to 0.100%, N: 0.010% or less, Cr: 0.05 to 1.50%, Mo: 0.10 to 1.50%, Nb: 0.010 to 0.050%, B: 0.0003 to 0.0050%, and Ti: 0.002 to 0.050%, the balance being Fe and impurities. In a main body region of the seamless steel pipe, a grain size number of prior-austenite grain conforming to ASTM E112 is 7.0 or more, a difference between a maximum value and a minimum value of the grain size number is 1.0 or less, yield strength is 655 to less than 862 MPa, and a difference between a maximum value and a minimum value of tensile strength is 27.6 MPa or less.
    Type: Application
    Filed: May 18, 2017
    Publication date: October 3, 2019
    Inventors: Atsushi Soma, Yuji Arai, Yosuke Tatebayashi, Keisuke Furo, Takenori Kuramoto, Hiroki Kamitani, Kouji Yamane
  • Publication number: 20180023179
    Abstract: A method for producing a plug includes: a step of preparing a plug base metal having a concave portion along a circumferential direction in an outer peripheral surface; and an arc spraying step of spraying a spraying wire rod material onto the outer peripheral surface of the plug base metal by arc spraying to form films containing Fe and Fe oxides on the outer peripheral surface of the plug base metal. The arc spraying step includes: a separating step of separating the outer peripheral surface of the plug base metal into a plurality of regions along an axial direction; and a step of performing arc spraying separately in each of the regions. In the separating step, a boundary between the regions is set at the concave portion. In this way, peeling of films at a connecting portion is prevented, and the lifetime of the plug can be increased.
    Type: Application
    Filed: November 18, 2015
    Publication date: January 25, 2018
    Inventors: Kazuhiro Shimoda, Kouji Yamane, Yasuto Higashida, Yasuyoshi Hidaka, Yuji Inoue, Shusuke Shimooka
  • Patent number: 9545658
    Abstract: There is provided a piercing apparatus in which the occurrence of an inner surface flaw in a hollow shell is suppressed. A piercing apparatus (10) according to an embodiment of the present invention is the piercing apparatus (10) which pierces a billet (18). The piercing apparatus (10) has a plug (14). The plug (14) has a through hole (30). The through hole (30) extends along the central axis, and allows the central portion of the billet (18) being pierced to pass therethrough.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: January 17, 2017
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Kazuhiro Shimoda, Tomio Yamakawa, Kouji Yamane, Yuji Inoue, Syusuke Shimooka, Kouji Muramatsu
  • Patent number: 9486845
    Abstract: An inner surface regulation tool includes a mandrel, a plug which is detachably connected to the mandrel, and a connection member which connects the plug and the mandrel by a magnetic force. One of the plug and the mandrel includes a column-shaped portion which extends in an axial direction of the one, and the other of the plug and the mandrel includes a joining hole which extends in an axial direction of the other and into which the column-shaped portion is inserted. In addition, the connection member is a permanent magnet which is attached to at least one of the column-shaped portion and the joining hole.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: November 8, 2016
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Kouji Yamane, Kazuhiro Shimoda, Tomio Yamakawa, Yuji Inoue
  • Patent number: 9308561
    Abstract: A method of producing a seamless metal pipe, which can suppress the occurrence of lamination defects, is provided. A method of producing a seamless metal pipe according to an embodiment of the present invention includes the steps of: heating a high alloy containing, by mass %, Cr: 20 to 30% and Ni: more than 22% and not more than 60% in a first heating furnace (S2); piercing-rolling the high alloy heated in the first heating furnace with a first piercing machine to produce a hollow shell (S3); heating the hollow shell in a second heating furnace (S4); and elongation-rolling the hollow shell heated in the second heating furnace with the first piercing machine or a second piercing machine which is different from the first piercing machine (S5).
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: April 12, 2016
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Kouji Yamane, Tomio Yamakawa, Kazuhiro Shimoda
  • Patent number: 9283600
    Abstract: A plug for hot pipe making includes a plurality of plug pieces which is attachable to and detachable from one another, and a connection member which connects the plug pieces by a magnetic force. One of the plug pieces connected to each other includes a column-shaped portion which extends in an axis direction of the plug for hot pipe making, and the other includes a joining hole which extends in the axis direction of the plug for hot pipe making and into which the column-shaped portion is inserted. The connection member is a permanent magnet which is attached to at least one of the column-shaped portion and the joining hole.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: March 15, 2016
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Kouji Yamane, Kazuhiro Shimoda, Tomio Yamakawa, Yuji Inoue
  • Patent number: 9221087
    Abstract: A method of producing a seamless metal pipe, which can suppress the occurrence of inner surface flaws, is provided. A method of producing a seamless metal pipe according to an embodiment of the present invention includes the steps of: heating a high alloy billet BL containing, by mass %, Cr: 20 to 30% and Ni: more than 22% and not more than 60% in a heating furnace F1 (S2); piercing-rolling the high alloy billet BL heated in the heating furnace F1 with a piercing machine P1 to produce a hollow shell (S3); cooling the hollow shell and then reheating the hollow shell in the heating furnace F1 (S4); and elongation-rolling the heated hollow shell with the piercing machine P1 (S5).
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: December 29, 2015
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Kouji Yamane, Tomio Yamakawa, Kazuhiro Shimoda
  • Publication number: 20150314346
    Abstract: An inner surface regulation tool includes a mandrel, a plug which is detachably connected to the mandrel, and a connection member which connects the plug and the mandrel by a magnetic force. One of the plug and the mandrel includes a column-shaped portion which extends in an axial direction of the one, and the other of the plug and the mandrel includes a joining hole which extends in an axial direction of the other and into which the column-shaped portion is inserted. In addition, the connection member is a permanent magnet which is attached to at least one of the column-shaped portion and the joining hole.
    Type: Application
    Filed: August 22, 2013
    Publication date: November 5, 2015
    Inventors: Kouji YAMANE, Kazuhiro SHIMODA, Tomio YAMAKAWA, Yuji INOUE
  • Publication number: 20150183010
    Abstract: A plug for hot pipe making includes a plurality of plug pieces which is attachable to and detachable from one another, and a connection member which connects the plug pieces by a magnetic force. One of the plug pieces connected to each other includes a column-shaped portion which extends in an axis direction of the plug for hot pipe making, and the other includes a joining hole which extends in the axis direction of the plug for hot pipe making and into which the column-shaped portion is inserted. The connection member is a permanent magnet which is attached to at least one of the column-shaped portion and the joining hole.
    Type: Application
    Filed: August 16, 2013
    Publication date: July 2, 2015
    Inventors: Kouji Yamane, Kazuhiro Shimoda, Tomio Yamakawa, Yuji Inoue
  • Publication number: 20140260494
    Abstract: There is provided a piercing apparatus in which the occurrence of an inner surface flaw in a hollow shell is suppressed. A piercing apparatus (10) according to an embodiment of the present invention is the piercing apparatus (10) which pierces a billet (18). The piercing apparatus (10) has a plug (14). The plug (14) has a through hole (30). The through hole (30) extends along the central axis, and allows the central portion of the billet (18) being pierced to pass therethrough.
    Type: Application
    Filed: November 1, 2012
    Publication date: September 18, 2014
    Inventors: Kazuhiro Shimoda, Tomio Yamakawa, Kouji Yamane, Yuji Inoue, Syusuke Shimooka, Kouji Muramatsu
  • Publication number: 20140250965
    Abstract: A method of producing a seamless metal pipe, which can suppress the occurrence of inner surface flaws, is provided. A method of producing a seamless metal pipe according to an embodiment of the present invention includes the steps of: heating a high alloy billet BL containing, by mass %, Cr: 20 to 30% and Ni: more than 22% and not more than 60% in a heating furnace F1 (S2); piercing-rolling the high alloy billet BL heated in the heating furnace F1 with a piercing machine P1 to produce a hollow shell (S3); cooling the hollow shell and then reheating the hollow shell in the heating furnace F1 (S4); and elongation-rolling the heated hollow shell with the piercing machine P1 (S5).
    Type: Application
    Filed: October 24, 2012
    Publication date: September 11, 2014
    Inventors: Kouji Yamane, Tomio Yamakawa, Kazuhiro Shimoda
  • Publication number: 20140245806
    Abstract: A method of producing a seamless metal pipe, which can suppress the occurrence of lamination defects, is provided. A method of producing a seamless metal pipe according to an embodiment of the present invention includes the steps of: heating a high alloy containing, by mass %, Cr: 20 to 30% and Ni: more than 22% and not more than 60% in a first heating furnace (S2); piercing-rolling the high alloy heated in the first heating furnace with a first piercing machine to produce a hollow shell (S3); heating the hollow shell in a second heating furnace (S4); and elongation-rolling the hollow shell heated in the second heating furnace with the first piercing machine or a second piercing machine which is different from the first piercing machine (S5).
    Type: Application
    Filed: October 24, 2012
    Publication date: September 4, 2014
    Applicant: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Kouji Yamane, Tomio Yamakawa, Kazuhiro Shimoda