Patents by Inventor Yoshio Okada

Yoshio Okada 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).

  • Publication number: 20130164527
    Abstract: A surface-coated cutting tool according to the present invention includes a base material and a coating film formed on the base material. The coating film includes at least one TiCN layer. The TiCN layer has a columnar crystal region. The columnar crystal region is characterized by having a composition of TiCxNy (in which 0.65?x/(x+y) 0.90), having a (422) plane having a plane spacing of 0.8765 ? to 0.8790 ? and having TC (220) showing a maximum value in an orientation index TC (hkl).
    Type: Application
    Filed: July 4, 2011
    Publication date: June 27, 2013
    Applicant: Sumitomo Electric Hardmetal Corp.
    Inventors: Anongsack Paseuth, Yoshio Okada, Chikako Kojima, Hideaki Kanaoka, Erika Iwai, Hiroyuki Morimoto
  • Publication number: 20130152481
    Abstract: A surface coated cutting tool with a high level of both wear resistance and defect resistance in balance is provided. The surface coated cutting tool of the present invention includes a base material, and a coat film formed on the base material. The coat film includes at least one titanium carbonitride layer. The titanium carbonitride layer has a maximum value for an orientational index TC (220) among texture coefficients TC (hkl). When an indentation hardness of a standard block for hardness is Hs and an indentation hardness of the titanium carbonitride layer is Ht, the average value of the relative hardness Ht/Hs for a plurality of times of measurement is greater than or equal to 3. The difference between the maximum value Htmax/Hs and minimum value Htmin/Hs of the relative hardness of the titanium carbonitride layer to the relative hardness Ht/Hs is less than or equal to 0.5.
    Type: Application
    Filed: July 5, 2011
    Publication date: June 20, 2013
    Applicant: Sumitomo Electric Hardmetal Corp.
    Inventors: Anongsack Paseuth, Minoru Itoh, Yoshio Okada, Hideaki Kanaoka, Chie Suzuki
  • Patent number: 8465828
    Abstract: A surface-coated cutting tool having excellent abrasion resistance and defect resistance is provided. The surface-coated cutting tool includes a substrate and a covering layer, wherein the covering layer includes one or two or more sublayers, a thickness T1 of a portion of the covering layer having the smallest thickness in a cutting edge line portion and a thickness T2 of the covering layer at a point 1 mm away from a cutting edge line in a rake face direction in a cross section cut by a particular plane satisfy T1<T2, and a point a on the surface of the covering layer a distance Da away from the cutting edge line in the rake face direction and a point b on the surface of the covering layer a distance Db away from the cutting edge line in a flank face direction satisfy particularly numerical ranges of Da and Db, and in 10% or more of a region E of the covering layer having a thickness in the range of 0.1 T1 to 0.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: June 18, 2013
    Assignee: Sumitomo Electric Hardmetal Corp.
    Inventors: Hideaki Kanaoka, Minoru Itoh, Yoshio Okada, Chie Suzuki, Anongsack Paseuth
  • Publication number: 20130101365
    Abstract: The surface-coated cutting tool of the present invention is characterized in that a region of 10 ?m in a surface of the base material from point a? to point b? has two to seven cracks with a width of not more than 200 nm, or two to ten pores are present per length of 10 ?m in the surface of the base material from point a? to point b?, where points a? and b? are points defined respectively by lines drawn perpendicularly from points a and b to the surface of the base material where point a is a position located away from an edge ridgeline toward a rake face by distance La and point b is a position located away from the edge ridgeline toward a flank face by distance Lb.
    Type: Application
    Filed: December 5, 2011
    Publication date: April 25, 2013
    Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Hideaki Kanaoka, Yoshio Okada, Chikako Kojima, Anongsack Paseuth, Erika Iwai, Hiroyuki Morimoto
  • Publication number: 20130093420
    Abstract: Apparatus and methods which employ a primary source mirror to scan a conductive sample containing an electric current to determine the distribution of currents in the sample, providing location, total magnitude, and direction in three dimensions of each component of the electric current distribution, by means of measuring the magnetic field external to the sample.
    Type: Application
    Filed: October 14, 2011
    Publication date: April 18, 2013
    Applicant: MOMENT TECHNOLOGIES, LLC
    Inventor: Yoshio OKADA
  • Patent number: 8394211
    Abstract: The present invention provides a magnesium alloy material excellent in high mechanical characteristics without using special manufacturing facilities or processes and a method for manufacturing the magnesium alloy material. The magnesium alloy material is an Mg—Zn—RE alloy containing Zn as an essential component, at least one of Gd, Tb, and Tm as RE, and the rest including Mg and unavoidable impurities and contains a needle-like precipitate or a board-like precipitate (lengthy precipitate: X-phase=?-phase, ??-phase, and ?1-phase).
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: March 12, 2013
    Assignees: Kobe Steel, Ltd., Nissan Motor Co., Ltd., National University Corporation Kumamoto University
    Inventors: Mamoru Nakata, Yuuichi Yamada, Koji Itakura, Takahiro Mibe, Yoshio Okada, Yoshihito Kawamura, Michiaki Yamasaki
  • Publication number: 20130045057
    Abstract: A surface-coated cutting tool excellent in wear resistance is provided. The surface-coated cutting tool of the present invention includes a base material and a coating formed on the base material. The coating includes an inner layer and an outer layer. The inner layer is a single layer or a multilayer stack constituted of two or more layers made of at least one element selected from the group consisting of group IVa elements, group Va elements, group VIa elements in the periodic table, Al, and Si, or a compound of at least one element selected from this group and at least one element selected from the group consisting of carbon, nitrogen, oxygen, and boron. The outer layer includes ?-aluminum oxide as a main component and exhibits an equivalent peak intensity PR(024) of a (024) plane of x-ray diffraction of larger than 1.3.
    Type: Application
    Filed: December 5, 2011
    Publication date: February 21, 2013
    Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Chikako Kojima, Yoshio Okada, Hideaki Kanaoka, Hiroyuki Morimoto, Anongsack Paseuth, Erika Iwai
  • Publication number: 20130038325
    Abstract: Apparatus and methods enabling the improved noninvasive measurement of electric currents flowing in the body of a human being or animal or in a biological sample by means of a modular array of primary source mirrors and a magnetometer.
    Type: Application
    Filed: August 9, 2011
    Publication date: February 14, 2013
    Applicant: MOMENT TECHNOLOGIES, LLC
    Inventor: Yoshio OKADA
  • Publication number: 20120282049
    Abstract: Wear resistance and chipping resistance are both highly established for a surface-coated cutting tool. The surface-coated cutting tool of the present invention includes a base material and a coat film formed on the base material. A first coat layer at a chamfer portion has residual stress that exhibits a minimal value at a depth A within 2 ?m from the surface, and that is greater than or equal to ?7 GPa and less than or equal to ?1 GPa.
    Type: Application
    Filed: June 10, 2011
    Publication date: November 8, 2012
    Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Yoshio Okada, Minoru Itoh, Hideaki Kanaoka, Chie Suzuki, Anongsack Paseuth
  • Publication number: 20120275870
    Abstract: A surface-coated cutting tool according to the present invention includes a base material and a coating film formed on the base material. The coating film includes at least one TiCN layer. The TiCN layer has a columnar crystal region. The columnar crystal region is characterized by having a composition of TiCxNy (in which 0.65?x/(x+y)?0.90) and having a (422) plane having a plane spacing of 0.8765 ? to 0.8790 ?.
    Type: Application
    Filed: July 4, 2011
    Publication date: November 1, 2012
    Applicant: Sumitomo Electric Hardmetal Corp.
    Inventors: Anongsack Paseuth, Yoshio Okada, Hideaki Kanaoka, Chikako Kojima, Erika Iwai
  • Publication number: 20120270037
    Abstract: A surface-coated cutting tool according to the present invention includes a base material and a coating film formed on the base material. The coating film includes at least one TiCN layer. The TiCN layer has a columnar crystal region. The columnar crystal region is characterized by having a composition of TiCxNy (in which 0.65?x/(x+y) 0.90), having a (422) plane having a plane spacing of 0.8765 ? to 0.8790 ? and having TC (220) showing a maximum value in an orientation index TC (hkl).
    Type: Application
    Filed: July 4, 2011
    Publication date: October 25, 2012
    Applicant: Sumitomo Electric Hardmetal Corp.
    Inventors: Anongsack Paseuth, Yoshio Okada, Chikako Kojima, Hideaki Kanaoka, Erika Iwai, Hiroyuki Morimoto
  • Publication number: 20120231227
    Abstract: A surface-coated cutting tool having excellent abrasion resistance and defect resistance is provided. The surface-coated cutting tool includes a substrate and a covering layer, wherein the covering layer includes one or two or more sublayers, a thickness T1 of a portion of the covering layer having the smallest thickness in a cutting edge line portion and a thickness T2 of the covering layer at a point 1 mm away from a cutting edge line in a rake face direction in a cross section cut by a particular plane satisfy T1<T2, and a point a on the surface of the covering layer a distance Da away from the cutting edge line in the rake face direction and a point b on the surface of the covering layer a distance Db away from the cutting edge line in a flank face direction satisfy particularly numerical ranges of Da and Db, and in 10% or more of a region E of the covering layer having a thickness in the range of 0.1 T1 to 0.
    Type: Application
    Filed: April 4, 2011
    Publication date: September 13, 2012
    Applicant: Sumitomo Electric Hardmetal Corp.
    Inventors: Hideaki Kanaoka, Minoru Itoh, Yoshio Okada, Chie Suzuki, Anongsack Paseuth
  • Publication number: 20120226135
    Abstract: Apparatus and methods to enable the complete detection and assessment of electric currents flowing in a conductive medium not only parallel, but also perpendicular to the boundary separating the conducting medium from a non-conducting medium by means of a magnetometer located outside of the conducting medium itself.
    Type: Application
    Filed: March 3, 2011
    Publication date: September 6, 2012
    Applicant: MOMENT TECHNOLOGIES, LLC
    Inventor: Yoshio OKADA
  • Patent number: 8231312
    Abstract: A surface-coated cutting tool includes a coating layer (108) formed on a substrate (104), wherein assuming that the average thickness of the coating layer (108) on a first surface (106) and a second surface (107) of the substrate (104) is A, a difference between the maximum and minimum thicknesses of the coating layer (108) is larger than 0.04×A. Also, a surface-coated cutting tool includes a coating layer (108) formed on a substrate (104), wherein assuming that the average thickness of the coating layer (108) on a first surface (106) of the substrate (104) is B1, and the average thickness of the coating layer (108) on a second surface (107) of the substrate (104) is B2, a value obtained by dividing an absolute difference value between B1 and B2 by a larger value of B1 and B2 is larger than 0.04.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: July 31, 2012
    Assignee: Sumitomo Electric Hardmetal Corp.
    Inventors: Naoya Omori, Yoshio Okada, Minoru Itoh, Shinya Imamura, Susumu Okuno, Hiroyuki Morimoto, Chikako Kojima
  • Patent number: 8137795
    Abstract: An indexable insert (1) includes a substrate (8) and a coating layer formed on the substrate. The coating layer includes an inner layer and an outer layer. The inner layer is constituted by a layer containing at least one element selected from the group consisting of Group IVa elements, Group Va elements, and Group VIa elements in the periodic table, and Al and Si. The uppermost layer of the inner layer in contact with the outer layer is composed of a compound at least containing Ti and at least one of nitrogen and boron. The outer layer is constituted by an alumina layer or an alumina-containing layer. In a region involved in cutting, the outer layer satisfies B/A?0.9 where A ?m is the average thickness at the flank face (3) side and B ?m is the average thickness at the rake face (2) side.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: March 20, 2012
    Assignee: Sumitomo Electric Hardmetal Corp.
    Inventors: Naoya Omori, Yoshio Okada, Minoru Itoh, Susumu Okuno, Shinya Imamura
  • Patent number: 8133576
    Abstract: A coated cutting insert according to the present invention includes a substrate, a base layer formed on the substrate, and an indicating layer formed on a part of the base layer. The base layer exhibits a color different from that of the indicating layer. The indicating layer is formed on the base layer, in at least a part of a surface including a cutting-edge portion and a rake face except for a flank face. When a surface relative roughness Ra of a breaker recess portion or a land portion of the rake face is set to A?m and a surface relative roughness Ra of the flank face is set to B?m, relation of B/A?1 is established.
    Type: Grant
    Filed: November 25, 2005
    Date of Patent: March 13, 2012
    Assignee: Sumitomo Electric Hardmetal Corp.
    Inventors: Naoya Omori, Yoshio Okada, Minoru Itoh, Norihiro Takanashi, Shinya Imamura, Susumu Okuno
  • Patent number: 8097332
    Abstract: An indexable cutting insert (1) includes a base (8) and a coating layer, wherein the coating layer includes an inner sublayer and an outer sublayer, each of subsublayer constituting the inner sublayer is composed of a compound containing at least one element selected from the group consisting of Group IVa elements, Group Va elements, Group VIa elements in the periodic table, Al, and Si, the outer sublayer is an alumina sublayer or a sublayer containing aluminum, and in portions of the outer sublayer participating in cutting, when an average thickness on the flank face (3) side is represented by A ?m and an average thickness on the rake face (2) side is represented by B ?m, A/B?0.95.
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: January 17, 2012
    Assignee: Sumitomo Electric Hardmetal Corp.
    Inventors: Naoya Omori, Yoshio Okada, Minoru Itoh, Susumu Okuno, Shinya Imamura
  • Patent number: 8030341
    Abstract: The present invention relates to symmetric and asymmetric dimeric Dmt (2?,6?-ditnethyl) compounds and Dmt derivative compounds with dual ? and ? opioid receptor antagonist activity. Also, the present invention provides compositions comprising these compounds and it provides methods of using these compounds.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: October 4, 2011
    Assignees: The United States of America as represented by the Secretary of the Department of Health and Human Services, Kobe Gakuin University
    Inventors: Lawrence H. Lazarus, Yoshio Okada, Tingyou Li
  • Patent number: 8012611
    Abstract: The present invention relates to a surface-coated cutting tool comprising a substrate and a coating formed on the substrate, the coating includes a first coating of TiCN and a second coating of ?-type Al2O3, the first coating is located between the substrate and the aforementioned second coating, and the second coating has compressive stress S1 in an area A1 spreading from an insert ridge portion in the direction of a rake face and the direction of a flank face with distances of at least 0.5 mm respectively and has tensile stress S2 in an area A2 other than this area A1, while compressive stress S1 and tensile stress S2 are defined by the following expression (I): 400 MPa?|S1?S2|?3500 Mpa ??(I).
    Type: Grant
    Filed: October 24, 2005
    Date of Patent: September 6, 2011
    Assignee: Sumitomo Electric Hardmetal Corp.
    Inventors: Yoshio Okada, Naoya Omori, Minoru Itoh, Norihiro Takanashi, Shinya Imamura, Susumu Okuno
  • Patent number: 8003234
    Abstract: A coated cutting insert according to the present invention includes a base layer formed on a substrate and an indicating layer formed on a part of the base layer. The indicating layer is formed on a flank face, on the base layer on the entire surface or a part of a region A2 except for a specific region A1, and on a rake face, on the base layer on the entire surface or a part of a region B2 except for a specific region B1. In the region A1 and the region B1, the base layer is exposed at the surface, and has compressive residual stress in one or both of the region A1 and the region B1.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: August 23, 2011
    Assignee: Sumitomo Electric Hardmetal Corp.
    Inventors: Naoya Omori, Yoshio Okada, Minoru Itoh, Susumu Okuno, Shinya Imamura