Patents by Inventor Nobuhiro Okada

Nobuhiro 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: 20120198898
    Abstract: A method for producing coated water-soluble particles in a manner to form two or more coating layers on surfaces of the water-soluble particles, characterized by including: a step A wherein after supplying a first coating material that contains a polyol component and an isocyanate component, a second coating material is additionally supplied to surfaces of first coating bodies that have coating layers formed of the first coating material that has not been sufficiently cured, so that second coating bodies that are provided with coating layers of the second coating material are obtained.
    Type: Application
    Filed: October 5, 2010
    Publication date: August 9, 2012
    Applicant: Central Glass Company, Limited
    Inventors: Hiroyuki Fujii, Nobuhiro Okada, Hideaki Sueta, Tadashi Tanaka, Kazuyoshi Morita
  • Patent number: 8191611
    Abstract: An electromagnetic stirrer for stirring molten steel of the liquid core in a width-wise direction of the slab includes an iron core disposed with its length-wise axis along a width-wise direction of slab, and a plurality of exciting coils wound around the outer circumference of and about a length-wise axis of the iron core, wherein two-phase or three-phase alternating current is passed through the coils. The phases of the current in the exciting coils are distributed to impart a stirring flow to the molten that includes flow from the minor sides to the center of the slab or from one minor side to the other minor side with a reversing flow at predetermined time intervals.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: June 5, 2012
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Nobuhiro Okada, Sei Hiraki, Kouji Takatani, Akihiro Yamanaka, Hidetoshi Suwa
  • Publication number: 20120012274
    Abstract: An electromagnetic stirrer for stirring molten steel of the liquid core in a width-wise direction of the slab includes an iron core disposed with its length-wise axis along a width-wise direction of slab, and a plurality of exciting coils wound around the outer circumference of and about a length-wise axis of the iron core, wherein two-phase or three-phase alternating current is passed through the coils. The phases of the current in the exciting coils are distributed to impart a stirring flow to the molten that includes flow from the minor sides to the center of the slab or from one minor side to the other minor side with a reversing flow at predetermined time intervals.
    Type: Application
    Filed: September 8, 2011
    Publication date: January 19, 2012
    Applicant: Sumitomo Metal Industries, Ltd.
    Inventors: Nobuhiro OKADA, Sei Hiraki, Kouji Takatani, Akihiro Yamanaka, Hidetoshi Suwa
  • Patent number: 8033319
    Abstract: Disclosed is a continuous casting in which an electromagnetic stirrer is installed upstream, in the casting direction, of the reduction rolling position of a slab, and in which a slab with a liquid core is reduced in thickness, wherein by imparting a collision flow forming-type stirring and a uni-directional alternating flow forming-type stirring, molten steel with concentrated segregation elements is stirred and diffused in a width-wise direction of slab, whereby a slab stabilized in center segregation qualities can be produced over long-time casting operation. Since the stirring flowing pattern is selectively imparted by means of the same electromagnetic stirrer, it is effective to decrease facility and equipment costs, improve maintainability, and extensively cope with various casting conditions.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: October 11, 2011
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Nobuhiro Okada, Sei Hiraki, Kouji Takatani, Akihiro Yamanaka, Hidetoshi Suwa
  • Publication number: 20110036533
    Abstract: Disclosed is a continuous casting in which an electromagnetic stirrer is installed upstream, in the casting direction, of the reduction rolling position of a slab, and in which a slab with a liquid core is reduced in thickness, wherein by imparting a collision flow forming-type stirring and a uni-directional alternating flow forming-type stirring, molten steel with concentrated segregation elements is stirred and diffused in a width-wise direction of slab, whereby a slab stabilized in center segregation qualities can be produced over long-time casting operation. Since the stirring flowing pattern is selectively imparted by means of the same electromagnetic stirrer, it is effective to decrease facility and equipment costs, improve maintainability, and extensively cope with various casting conditions.
    Type: Application
    Filed: October 27, 2010
    Publication date: February 17, 2011
    Applicant: SUMITOMO METAL INDUSTRIES, LTD.
    Inventors: Nobuhiro Okada, Sei Hiraki, Kouji Takatani, Akihiro Yamanaka, Hidetoshi Suwa
  • Patent number: 7741559
    Abstract: A photoelectric conversion element having a composite dye and an n-type semiconductor, the composite dye having a plurality of component dyes which have different excitation levels and which are chemically bonded to each other to form a straight chain or branched structure for transferring an electron therethrough, wherein the straight chain or branched structure is, at one end thereof, secured to the n-type semiconductor and has, at least at one other end thereof, a free end, wherein, in the straight chain or branched structure, the plurality of component dyes are arranged in an order such that the excitation levels of the plurality of component dyes are decreased as viewed from the one end of the structure toward the at least one other end of the structure.
    Type: Grant
    Filed: May 13, 2004
    Date of Patent: June 22, 2010
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Masaaki Kurihara, Nobuhiro Okada
  • Publication number: 20100129728
    Abstract: An alloy catalyst for oxygen reduction reaction in a polymer electrolyte membrane fuel cell, comprising at least Pd, Co, and Au, wherein each content of Pd, Co, and Au satisfies 20 atomic %?Pd<70 atomic %, 30 atomic %?Co<70 atomic %, and 0 atomic %<Au?30 atomic %.
    Type: Application
    Filed: October 5, 2006
    Publication date: May 27, 2010
    Inventors: Isao Morimoto, Nobuhiro Okada, Fujito Yamaguchi, Karen Marie Brace, Christopher Edward Lee, Brian Elliot Hayden
  • Patent number: 7635413
    Abstract: A SiC single crystal is produced by the solution growth method in which a seed crystal attached to a seed shaft is immersed in a solution of SiC dissolved in a melt of Si or a Si alloy and a SiC single crystal is allowed to grow on the seed crystal by gradually cooling the solution or by providing a temperature gradient therein. To this method, accelerated rotation of a crucible is applied by repeatedly accelerating to a prescribed rotational speed and holding at that speed and decelerating to a lower rotational speed or a 0 rotational speed. The rotational direction of the crucible may be reversed each acceleration. The seed shaft may also be rotated synchronously with the rotation of the crucible in the same or opposite rotational as the crucible. A large, good quality single crystal having no inclusions are produced with a high crystal growth rate.
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: December 22, 2009
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Kazuhiko Kusunoki, Kazuhito Kamei, Nobuyoshi Yashiro, Akihiro Yauchi, Yoshihisa Ueda, Yutaka Itoh, Nobuhiro Okada
  • Publication number: 20070209573
    Abstract: A SiC single crystal is produced by the solution growth method in which a seed crystal attached to a seed shaft is immersed in a solution of SiC dissolved in a melt of Si or a Si alloy and a SiC single crystal is allowed to grow on the seed crystal by gradually cooling the solution or by providing a temperature gradient therein. To this method, accelerated rotation of a crucible is applied by repeatedly accelerating to a prescribed rotational speed and holding at that speed and decelerating to a lower rotational speed or a 0 rotational speed. The rotational direction of the crucible may be reversed each acceleration. The seed shaft may also be rotated synchronously with the rotation of the crucible in the same or opposite rotational as the crucible. A large, good quality single crystal having no inclusions are produced with a high crystal growth rate.
    Type: Application
    Filed: March 1, 2007
    Publication date: September 13, 2007
    Applicant: Sumitomo Metal Industries, Ltd.
    Inventors: Kazuhiko Kusunoki, Kazuhito Kamei, Nobuyoshi Yashiro, Akihiro Yauchi, Yoshihisa Ueda, Yutaka Itoh, Nobuhiro Okada
  • Publication number: 20060237059
    Abstract: A photoelectric conversion element having a composite dye and an n-type semiconductor, the composite dye having a plurality of component dyes which have different excitation levels and which are chemically bonded to each other to form a straight chain or branched structure for transferring an electron therethrough, wherein the straight chain or branched structure is, at one end thereof, secured to the n-type semiconductor and has, at least at one other end thereof, a free end, wherein, in the straight chain or branched structure, the plurality of component dyes are arranged in an order such that the excitation levels of the plurality of component dyes are decreased as viewed from the one end of the structure toward the at least one other end of the structure.
    Type: Application
    Filed: May 13, 2004
    Publication date: October 26, 2006
    Inventors: Masaaki Kurihara, Nobuhiro Okada