Patents Assigned to Toyo Kohan Co., Ltd.
  • PLATING PRETREATMENT SOLUTION AND METHOD FOR PRODUCING ALUMINUM SUBSTRATE FOR HARD DISK DEVICES USING SAME
    Publication number: 20130309405
    Abstract: An object of the invention is to provide a plating pretreatment solution that can convert the surface of an aluminum substrate for hard disk devices into a surface suitable for electroless nickel plating, and a method for producing an aluminum substrate for hard disk devices using the same. The plating pretreatment solution of the present invention used for a plating pretreatment in production of an aluminum substrate for hard disk devices has an iron ion concentration of 0.1 g/l to 1.0 g/l and a nitric acid concentration of 2.0 wt % to 12.0 wt %. This plating pretreatment solution is used for a pretreatment of a plating step in which electroless nickel plating is applied to an aluminum substrate for hard disk devices.
    Type: Application
    Filed: January 19, 2012
    Publication date: November 21, 2013
    Applicant: TOYO KOHAN CO., LTD.
    Inventors: Nobuaki Mukai, Takahiro Yoshida
  • Solid support having electrostatic layer and use thereof
    Patent number: 8563239
    Abstract: It is intended to provide a solid support capable of immobilizing nucleic acid molecules in a high proportion, and with a high bond strength to nucleic acid molecules. The solid support comprises a substrate and, provided thereon, an electrostatic layer for electrostatically attracting nucleic acid molecules and functional groups capable of covalently binding to nucleic acid molecules.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: October 22, 2013
    Assignee: Toyo Kohan Co., Ltd.
    Inventors: Hiroshi Okamura, Michifumi Tanga, Hirofumi Yamano, Mitsuyoshi Ohba
  • Method and apparatus for forming oxide coating
    Patent number: 8551317
    Abstract: Disclosed are a method and an apparatus for forming an oxide coating film with excellent corrosion resistance and adhesiveness on a cathode made of a metal plate by a simple process at low cost. A direct current voltage is applied between an anode (12) and a cathode (13) in an electrolyte solution which cathode (13) is made of a metal plate to be coated with oxide and arranged opposite to the anode (12), while supplying oxygen or a gas containing oxygen into the electrolyte solution, so that the metal plate cathode (13) is coated with oxide, thereby being formed into a oxide-coated metal plate.
    Type: Grant
    Filed: November 9, 2004
    Date of Patent: October 8, 2013
    Assignees: Toyo Seikan Kaisha, Ltd., Toyo Kohan Co., Ltd.
    Inventors: Wataru Kurokawa, Hiroshi Matsubayashi, Mitsuhide Aihara, Masanobu Matsubara, Masatoki Ishida, Norimasa Maida
  • Solid support having electrostatic layer and use thereof
    Patent number: 8551765
    Abstract: It is intended to provide a solid support capable of immobilizing nucleic acid molecules in a high proportion, and with a high bond strength to nucleic acid molecules. The solid support comprises a substrate and, provided thereon, an electrostatic layer for electrostatically attracting nucleic acid molecules and functional groups capable of covalently binding to nucleic acid molecules.
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: October 8, 2013
    Assignee: Toyo Kohan Co., Ltd.
    Inventors: Hiroshi Okamura, Michifumi Tanga, Hirofumi Yamano, Mitsuyoshi Ohba
  • STEEL PLATE FOR PRODUCING PIPE HIGHLY RESISTANT TO FUEL VAPOR CORROSION, PIPE USING SAME AND METHOD FOR PRODUCING PIPE
    Publication number: 20130199657
    Abstract: Provided are a pipe which exhibits corrosion resistance against vapor of fuel such as gasoline, diesel oil, bioethanol or a biodiesel fuel, a method for manufacturing the pipe, and a steel sheet for manufacturing the pipe. A method for manufacturing a pipe having a bent portion which has excellent corrosion resistance against fuel vapor includes the steps of; preparing a steel sheet for manufacturing a pipe which is characterized by having a zinc-nickel (Zn—Ni) alloy layer where a nickel content is 4 to 16 at % on at least one surface of the steel sheet; forming the steel sheet for manufacturing a pipe into a tubular shape such that the Zn—Ni alloy layer forms an inner surface of the pipe, and applying bending to the pipe such that the elongation of the bent convex portion generated at the time of bending the pipe falls within 20%.
    Type: Application
    Filed: August 4, 2011
    Publication date: August 8, 2013
    Applicant: TOYO KOHAN CO., LTD.
    Inventors: Tatsuo Tomomori, Koh Yoshioka
  • METHOD FOR PRODUCTION OF HARD DISK SUBSTRATE AND HARD DISK SUBSTRATE
    Publication number: 20130196178
    Abstract: Provided are a method for production of a hard disk substrate capable of obtaining a smooth surface of a plating film by electroless NiP plating that is not degraded in, but exhibits corrosion resistance against, an acid solution and such a hard disk substrate.
    Type: Application
    Filed: October 4, 2011
    Publication date: August 1, 2013
    Applicant: TOYO KOHAN, CO., LTD.
    Inventor: Nobuaki Mukai
  • Method for detecting a position of probe on microarray
    Patent number: 8497068
    Abstract: A method for detecting hybridization between a probe polynucleotide and a target polynucleotide on a microarray is presented. The method may be used to determine the accuracy of hybridization and possible causes of inaccuracy, such as insufficient washing or deterioration of the microarray.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: July 30, 2013
    Assignee: Toyo Kohan Co., Ltd.
    Inventors: Koichi Hirayama, Hirofumi Yamano, Michifumi Tanga
  • Method for production of magnesium alloy molding-processed article, and magnesium alloy molding-processed article
    Patent number: 8490278
    Abstract: Disclosed is a method for producing a magnesium alloy press-formed body at a high degree of forming and at a low cost. Also disclosed is a magnesium alloy press-formed body having an aesthetic surface, which is produced by the method. The method comprises the steps of applying an organic resin capable of imparting formability (e.g. a water-soluble urethane resin, a water-soluble polyester resin, a water-soluble acrylic resin, a water-soluble epoxy resin, or an organic resin produced by modification of any one of these resins), or an organic resin which is prepared by mixing any one of these resins with a silane coupling agent, colloidal silica, a lubricant, a metal alkoxide or the like by coating onto the surface of a magnesium alloy material, press-forming the organic resin-coated magnesium alloy material into a desired shape, and removing the organic resin using a resin removing liquid.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: July 23, 2013
    Assignee: Toyo Kohan Co., Ltd.
    Inventors: Masao Komai, Koh Yoshioka
  • Detection method for microarray
    Patent number: 8481461
    Abstract: Described is a means for objectively determining hybridization failure in addition to performance degradation, insufficient washing and the like in a microarray. In particular a method for detecting the hybridization between a probe polynucleotide and a target polynucleotide by using a microarray is presented.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: July 9, 2013
    Assignee: Toyo Kohan Co., Ltd.
    Inventors: Hirofumi Yamano, Koichi Hirayama, Akane Ito
  • RINSING AGENT, AND METHOD FOR PRODUCTION OF HARD DISK SUBSTRATE
    Publication number: 20130122786
    Abstract: Provided are a rinsing agent to produce a hard disk substrate free from remaining abrasive grains as well as a pit defect on the surface thereof and a method for production of a hard disk substrate using such a rinsing agent. A rinsing agent of the present invention is rinsing solution containing colloidal silica as abrasive grains. Letting that the colloidal silica abrasive grains have a concentration C and an average grain size R (C and R are represented in weight % and nm, respectively), the concentration C and the average grain size R of the colloidal silica abrasive grains have a relation matching the following Expression (1): 12.2C+18.2 (1).
    Type: Application
    Filed: July 19, 2011
    Publication date: May 16, 2013
    Applicants: KOHAN KOGYO CO., LTD., TOYO KOHAN CO., LTD.
    Inventors: Nobuhiro Iwamoto, Nobuaki Mukai, Kazutaka Arai, Ryuji Kotani
  • FILM PRODUCTION APPARATUS AND METHOD FOR PRODUCING FILM
    Publication number: 20130099413
    Abstract: Provided is a film production apparatus and a method for producing film capable of exerting a good effect of preventing necking-in by minimizing the length of molten resin after extrusion through a die exit and before a contact with the surface of a chill roll. A film production apparatus configured to take up molten resin extruded downward from an exit bored in a die by a rotating chill roll located below the exit and to cool the molten resin for solidification by the chill roll to produce a film further includes a fluid providing unit that provides fluid to a space between the exit and the chill roll located below. The film production apparatus is configured to apply fluid pressure in a direction pushing back the molten resin existing in the space against displacement of the molten rein taken up in a rotational direction of the chill roll.
    Type: Application
    Filed: June 6, 2011
    Publication date: April 25, 2013
    Applicant: Toyo Kohan Co Ltd
    Inventors: Hiroshi Inazawa, Go Fukui, Takuji Nakamura, Tadashi Fujii
  • Method of drawing and ironing a resin film laminated metal sheet and resin film laminated drawn and ironed can using the same method
    Patent number: 8413478
    Abstract: A method of drawing and ironing a resin film laminated metal sheet for forming a can body having a bottom portion, a can wall portion and a flange-forming portion by drawing the resin film laminated metal sheet obtained by laminating at least one surface of a metal sheet with an organic resin film, followed by ironing by using a punch and a plurality of dies neighboring each other. The can wall is effectively prevented from being broken by a decrease in the thickness of the can wall, and drawn and ironed cans are efficiently formed having a thickness which is decreased as designed.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: April 9, 2013
    Assignees: Toyo Kohan Co., Ltd., Toyo Seikan Kaisha, Ltd.
    Inventors: Hidekazu Tomaru, Shinichi Taya, Masahiro Kai, Junichi Tanabe, Etsuro Tsutsumi, Norihito Saiki
  • BATH FOR SURFACE TREATMENT, METHOD OF PRODUCING SURFACE-TREATED STEEL PLATE BY USING THE BATH FOR SURFACE TREATMENT, AND SURFACE-TREATED STEEL PLATE PRODUCED BY THE SAME METHOD
    Publication number: 20130052478
    Abstract: [Problems] To provide a bath for surface treatment capable of forming a surface-treating film having excellent corrosion resistance by a high-speed electrolytic treatment, and a method of producing a surface-treated steel plate having excellent corrosion resistance and closely adhering property to the coating maintaining good productivity. [Means for Solution] A bath for surface treatment used for forming a surface-treating film on the surface of a steel plate by cathodic electrolysis, the bath for surface treatment containing Zr and/or Ti, and a polycarboxylic acid.
    Type: Application
    Filed: May 27, 2011
    Publication date: February 28, 2013
    Applicants: TOYO SEIKAN KAISHA, LTD., TOYO KOHAN CO., LTD., NIPPON PAINT CO., LTD.
    Inventors: Wataru Kurokawa, Seitaro Kanazawa, Shinichi Taya, Kunihiro Yoshimura, Naomi Iida, Miwa Iida, Masahiko Matsukawa
  • SUBSTRATE FOR SUPERCONDUCTING COMPOUND AND METHOD FOR MANUFACTURING THE SUBSTRATE
    Publication number: 20130040821
    Abstract: Provided are a substrate for a superconducting compound and a method for manufacturing the substrate which can realize the excellent adhesive strength simultaneously with high orientation of copper. An absorbed material on a surface of a copper foil to which rolling is applied at a draft of 90% or more is removed by applying sputter etching to the surface of the copper foil, sputter etching is applied to a nonmagnetic metal sheet, the copper foil and the metal sheet are bonded to each other by applying a pressure to the copper foil and the metal sheet using reduction rolls, crystals of the copper in the copper foil are oriented by heating a laminated body formed by such bonding, copper is diffused into the metal sheet by heating with a copper diffusion distance of lOnm or more, and a protective layer is laminated to a surface of the copper foil of the laminated body.
    Type: Application
    Filed: November 12, 2010
    Publication date: February 14, 2013
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., TOYO KOHAN CO., LTD.
    Inventors: Hironao Okayama, Kouji Nanbu, Akira Kaneko, Hajime Ota, Kotaro Ohki, Takashi Yamaguchi, Kazuhiko Hayashi, Kazuya Ohmatsu
  • DETECTION METHOD FOR MICROARRAY
    Publication number: 20120289427
    Abstract: Described is a means for objectively determining hybridization failure in addition to performance degradation, insufficient washing and the like in a microarray. In particular a method for detecting the hybridization between a probe polynucleotide and a target polynucleotide by using a microarray is presented.
    Type: Application
    Filed: December 13, 2010
    Publication date: November 15, 2012
    Applicant: TOYO KOHAN CO., LTD.
    Inventors: Hirofumi Yamano, Koichi Hirayama, Akane Ito
  • Process for Production of Cold-Rolled Steel Sheet Having Excellent Press Moldability, and Cold-Rolled Steel Sheet
    Publication number: 20120234438
    Abstract: Provided are a cold-rolled steel sheet which undergoes a small load at the time of cold-rolling, has excellent press formability and high strength, and a method of manufacturing the cold-rolled steel sheet. A hot-rolled steel sheet having the composition comprising by mass %, 0.10 to 0.30 C, 0.2 or more Mn, 0.01 or more Ni, 0.5 to 2.5 Mn+Ni, 1.2 to 9.0 Cr, and Fe and unavoidable impurities as a balance, and has a tensile strength of 1000 MPa or less is subjected to pickling and, is subjected to cold rolling at a total rolling reduction of 60% or more thus forming a cold-rolled steel sheet. A final continuous annealing treatment is performed at a soaking temperature of 750° C. or above and at a cooling rate of 3° C./s to 100° C./s so that the cold-rolled steel sheet which has a tensile strength of 1280 MPa or more, breaking elongation of 3% or more, and a thickness of 0.05 to 0.60 mm is manufactured.
    Type: Application
    Filed: June 17, 2010
    Publication date: September 20, 2012
    Applicants: Nakayama Steel Works, Ltd., Toyo Kohan Co., Ltd.
    Inventors: Satoshi Oi, Shigeyoshi Nishiyama, Fuyuki Yoshida, Yuji Kusumoto, Osamu Akisue
  • Nickel-Plated Steel Sheet for Manufacturing Pipe Having Corrosion Resistance Against Fuel Vapors, Pipe Which Uses the Steel Sheet,and Fuel Supply Pipe Which Uses the Steel Sheet
    Publication number: 20120234428
    Abstract: Provided is a nickel-plated steel sheet for manufacturing a pipe having corrosion resistance against fuel vapor of fuel such as gasoline, light oil, bioethanol or bio-diesel fuel, and a pipe and a fuel supply pipe. In the nickel-plated steel sheet for manufacturing a pipe, a nickel plating layer having a plating thickness of 0.5 to 10 ?m is formed on a surface of a steel sheet thus having corrosion resistance against fuel vapor. In the pipe and the fuel supply pipe, a nickel plating layer having a plating thickness of 0.5 to 10 ?m is formed on an inner surface of a pipe formed of a steel sheet thus having corrosion resistance against fuel vapor.
    Type: Application
    Filed: September 15, 2010
    Publication date: September 20, 2012
    Applicant: Toyo Kohan Co., Ltd.
    Inventors: Tatsuo Tomomori, Koh Yoshioka, Hideyuki Minagi
  • Steel Sheet Used to Manufacture Pipe and Having Corrosion-Resistant Properties Against Fuel Vapors, and Pipe and Fuel Supply Pipe That Use Same
    Publication number: 20120234426
    Abstract: Provided is a steel sheet for manufacturing a pipe having corrosion resistance against fuel vapor of fuel such as gasoline, light oil, bioethanol or bio-diesel fuel, and a pipe and a fuel supply pipe. In the steel sheet for manufacturing a pipe, a Fe—Ni diffusion layer and a softened Ni layer which is provided on the Fe—Ni diffusion layer are formed on a surface of a steel sheet, and a thickness of the softened Ni layer is set to a value which falls within a range of 0.9 to 8.1 ?m thus having corrosion resistance against fuel vapor. In the pipe and the fuel supply pipe, a Fe—Ni diffusion layer and a softened Ni layer which is provided on the Fe—Ni diffusion layer are formed on an inner surface of a pipe formed of a steel sheet, and a thickness of the softened Ni layer is set to a value which falls within a range of 0.9 to 8.1 ?m.
    Type: Application
    Filed: September 16, 2010
    Publication date: September 20, 2012
    Applicant: Toyo Kohan Co., Ltd.
    Inventors: Tatsuo Tomomori, Koh Yoshioka, Hideyuki Minagi
  • SURFACE TREATED STEEL SHEET FOR BATTERY CASE, BATTERY CASE AND BATTERY USING THE CASE
    Publication number: 20120231329
    Abstract: A surface treated steel sheet for a battery case, which has a diffusion layer of a nickel-phosphorus alloy or a nickel-cobalt-phosphorus alloy formed on the outermost layer of the inside surface of a plated steel sheet for a battery case; a battery case which is produced through forming the surface-treated steel sheet having a diffusion layer of a nickel-phosphorus alloy or a nickel-cobalt-phosphorus alloy by the deep drawing method, the DI forming or the DTR forming: and a battery using the battery case. The battery case can be used for producing a battery excellent in battery characteristics.
    Type: Application
    Filed: May 18, 2012
    Publication date: September 13, 2012
    Applicant: Toyo Kohan Co., Ltd.
    Inventors: Hitoshi Ohmura, Tatsuo Tomomori, Yoshitaka Honda
  • Surface Treated Metal Materials, Method of Treating the Surfaces Thereof, Resin Coated Metal Materials, Cans and Can Lids
    Publication number: 20120222963
    Abstract: A surface-treated metal material having, formed on the surface of a metal base member, an inorganic surface-treating layer that contains inorganic components or, further having an organic surface-treating layer formed on the inorganic surface-treating layer, the inorganic surface-treating layer containing at least M (M is at least one of Ti, Zr and Al), O and F. The organic surface-treating layer contains a silane coupling agent containing Si in an amount of 0.8 to 30 mg/m2 or a phenol-type water-soluble organic compound.
    Type: Application
    Filed: May 1, 2012
    Publication date: September 6, 2012
    Applicants: TOYO KOHAN CO., LTD., TOYO SEIKAN KAISHA, LTD.
    Inventors: Masatoshi ISHIDA, Norimasa MAIDA, Wataru KUROKAWA, Hiroshi MATSUBAYASHI, Mitsuhide AIHARA, Shigeya TAKAHASHI, Masanobu MATSUBARA