Patents by Inventor Takayuki Murata

Takayuki Murata 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: 10918578
    Abstract: According to one aspect of the present invention, a dental curable composition includes: polymerizable monomers; inorganic particles (A1) and/or inorganic particles (A2) (excluding the inorganic particles (A2); and inorganic particles (B). The inorganic particles (A1) are surface-treated with a compound expressed by a general formula (1) and have a volume-median particle size of greater than or equal to 0.1 ?m and less than or equal to 0.9 ?m. The inorganic particles (A2) are surface-treated with a compound expressed by a general formula (2) and have a volume-median particle size of greater than or equal to 0.1 ?m and less than or equal to 0.9 ?m.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: February 16, 2021
    Assignee: GC Corporation
    Inventors: Takayuki Murata, Takumasa Kimura, Yui Tei, Azusa Miyagawa
  • Publication number: 20200352830
    Abstract: A polymerizable monomer, a filler (A), and a filler (B) are contained, the filler (A) includes an inorganic particle and a compound covering the inorganic particle, the filler (B) includes another inorganic particle and another compound covering the other inorganic particle, and the average particle size of the filler (B) is 20% to 550% of the average particle size of the filler (A).
    Type: Application
    Filed: May 10, 2019
    Publication date: November 12, 2020
    Applicant: GC CORPORATION
    Inventors: Akio TAKAHASHI, Takayuki MURATA, Takumasa KIMURA
  • Publication number: 20190380918
    Abstract: According to one aspect of the present invention, a dental curable composition includes: polymerizable monomers; inorganic particles (A1) and/or inorganic particles (A2) (excluding the inorganic particles (A2); and inorganic particles (B). The inorganic particles (A1) are surface-treated with a compound expressed by a general formula (1) and have a volume-median particle size of greater than or equal to 0.1 ?m and less than or equal to 0.9 ?m. The inorganic particles (A2) are surface-treated with a compound expressed by a general formula (2) and have a volume-median particle size of greater than or equal to 0.1 ?m and less than or equal to 0.9 ?m.
    Type: Application
    Filed: December 6, 2017
    Publication date: December 19, 2019
    Inventors: Takayuki MURATA, Takumasa KIMURA, Yui TEI, Azusa MIYAGAWA
  • Patent number: 10449124
    Abstract: A polymerizable composition for dental use including a (meth)acrylate monomer that is able to cyclopolymerize is provided.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: October 22, 2019
    Assignee: GC Corporation
    Inventors: Takayuki Murata, Nobuhito Takagi, Takayuki Ueno
  • Publication number: 20190145623
    Abstract: In a structure for cooling a constituent member of a gas turbine engine using a working gas of the gas turbine engine as a cooling medium, on a wall surface of a passage wall formed from a part of the constituent member and facing a cooling medium passage through which the cooling medium flows, a recess formed on the wall surface of the passage wall and a projection formed on at least a part of a peripheral edge of the recess are provided.
    Type: Application
    Filed: January 15, 2019
    Publication date: May 16, 2019
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Kenichiro FUKUMOTO, Yoshihiro Yamasaki, Masayoshi Kinugawa, Kazuhiko Tanimura, Katsuhiko Ishida, Tomoko Tsuru, Takayuki Murata
  • Patent number: 10202667
    Abstract: There is provided a high strength hot rolled steel sheet having a composition comprising C: 0.040% to 0.100%, by mass %, Si: 0.50% or less, by mass %, Mn: 1.00% to 2.00%, by mass %, P: 0.03% or less, by mass %, S: 0.006% or less, by mass %, Al: 0.08% or less, by mass %, N: 0.0080% or less, by mass %, Ti: 0.14% to 0.22%, by mass %, and Fe and incidental impurities, and a method for making the same. The high strength hot rolled steel sheet includes a microstructure in which a primary phase is a ferrite phase and fine carbides containing Ti are dispersion-precipitated.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: February 12, 2019
    Assignee: JFE STEEL CORPORATION
    Inventors: Noriaki Kosaka, Satoshi Tsutsumi, Takayuki Murata, Motohiko Urabe
  • Publication number: 20180221251
    Abstract: A polymerizable composition for dental use including a (meth)acrylate monomer that is able to cyclopolymerize is provided.
    Type: Application
    Filed: June 29, 2016
    Publication date: August 9, 2018
    Inventors: Takayuki MURATA, Nobuhito TAKAGI, Takayuki UENO
  • Publication number: 20160273653
    Abstract: The piston includes a body having a hollow chamber defined therein, and a member inserted in the hollowed chamber to define an oil passage between an inner peripheral surface of the hollow chamber and an opposing outer peripheral surface of the member. This reduces the dead volume and, as a result, improves the compressibility. In addition, the increased cooling performance prevents the fusing of the piston to the cylinder.
    Type: Application
    Filed: December 12, 2013
    Publication date: September 22, 2016
    Inventors: Hideki TAMASHIMA, Hirokazu MATSUDA, Takayuki MURATA, Daisuke WATANABE
  • Patent number: 9387527
    Abstract: A hot-rolling line, a method for photographing the entire width of a hot-rolled metal strip, a method for recording the photographic result of the entire width, a method for appropriately performing quality assurance, and a method for producing a hot-rolled metal strip using them, provide proper quality assurance for delivering a product to a customer. A hot-rolling line includes a near-infrared camera arranged to photograph an entire width of a hot-rolled metal strip on an entry side of a coiler of the hot-rolling line.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: July 12, 2016
    Assignee: JFE Steel Corporation
    Inventors: Nobuo Nishiura, Takayuki Murata, Koji Yanagino, Kazuhiro Nitta, Hiroshi Sawada
  • Publication number: 20160138126
    Abstract: There is provided a high strength hot rolled steel sheet having a composition comprising C: 0.040% to 0.100%, by mass %, Si: 0.50% or less, by mass %, Mn: 1.00% to 2.00%, by mass %, P: 0.03% or less, by mass %, S: 0.006% or less, by mass %, Al: 0.08% or less, by mass %, N: 0.0080% or less, by mass %, Ti: 0.14% to 0.22%, by mass %, and Fe and incidental impurities, and a method for making the same. The high strength hot rolled steel sheet includes a microstructure in which a primary phase is a ferrite phase and fine carbides containing Ti are dispersion-precipitated.
    Type: Application
    Filed: June 25, 2014
    Publication date: May 19, 2016
    Applicant: JFE STEEL CORPORATION
    Inventors: Noriaki KOSAKA, Satoshi TSUTSUMI, Takayuki MURATA, Motohiko URABE
  • Patent number: 9222155
    Abstract: A high strength hot-rolled steel sheet has a tensile strength of not less than 780 MPa and exhibits excellent stretch flangeability and excellent fatigue resistance. A steel has a composition containing C at 0.05 to 0.15%, Si at 0.2 to 1.2%, Mn at 1.0 to 2.0%, P at not more than 0.04%, S at not more than 0.005%, Ti at 0.05 to 0.15%, Al at 0.005 to 0.10% and N at not more than 0.007%.
    Type: Grant
    Filed: May 30, 2011
    Date of Patent: December 29, 2015
    Assignee: JFE Steel Corporation
    Inventors: Nobuyuki Nakamura, Hayato Saito, Katsumi Nakajima, Yoshimasa Funakawa, Noriaki Moriyasu, Takayuki Murata
  • Patent number: 9200344
    Abstract: A steel sheet including C at 0.05 to 0.15%, Si at 0.2 to 1.2%, Mn at 1.0 to 2.0%, P at not more than 0.04%, S at not more than 0.0030%, Al at 0.005 to 0.10%, N at not more than 0.005% and Ti at 0.03 to 0.13%, the balance being Fe and inevitable impurities, includes surface regions having an area fraction of bainite of less than 80% and an area fraction of a ferrite phase with a grain diameter of 2 to 15 ?m of not less than 10%, the surface regions extending from both surfaces of the steel sheet each to a depth of 1.5 to 3.0% relative to a total sheet thickness, as well as an inner region other than the surface regions having an area fraction of a bainite phase of more than 95%, and has a tensile strength of not less than 780 MPa.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: December 1, 2015
    Assignee: JFE Steel Corporation
    Inventors: Hayato Saito, Katsumi Nakajima, Yoshimasa Funakawa, Noriaki Moriyasu, Takayuki Murata
  • Publication number: 20140007993
    Abstract: A high strength hot rolled steel sheet having excellent blanking workability is provided. The composition contains C: 0.050 to 0.15%, Si: 0.1 to 1.5%, Mn: 1.0 to 2.0%, P: 0.03% or less, S: 0.0030% or less, Al: 0.01 to 0.08%, Ti: 0.05 to 0.15%, N: 0.005% or less, and the balance being Fe and unavoidable impurities. More than 95% of the microstructure is formed of a bainite phase in terms of area fraction. Average grain diameters of the bainite phase in a region having a thickness equal to ¼ of the sheet thickness from the surface in the sheet thickness direction is 5 ?m or less in an L-direction cross section and 4 ?m or less in a C-direction cross section. The number of crystal grains extended in the rolling direction and having an aspect ratio of 5 or more is 7 or less in a sheet thickness center portion.
    Type: Application
    Filed: September 15, 2011
    Publication date: January 9, 2014
    Applicant: JFE Steel Corporation
    Inventors: Katsumi Nakajima, Hayato Saito, Yoshimasa Funakawa, Noriaki Moriyasu, Takayuki Murata
  • Publication number: 20130276940
    Abstract: A steel having a composition that includes C: 0.05 to 0.15%, Si: 0.2 to 1.2%, Mn: 1.0 to 2.0%, Al: 0.005 to 0.10%, N: 0.006% or less, and at least one selected from Ti: 0.03 to 0.13%, Nb: 0.02 to 0.10%, and V: 0.02 to 0.15% is subjected to rough rolling at a reduction of 80% or more and finish rolling at a finish rolling delivery temperature in the range of 800 to 950° C. The finish rolled sheet is subjected to cooling including cooling the finish rolled sheet from the finish rolling delivery temperature to a cooling end temperature in the range of 550 to 610° C. at an average cooling rate of 25° C./sec. or more and cooling the finish rolled sheet from the cooling end temperature of the previous process to a coiling temperature at an average cooling rate of 100° C./sec. or more.
    Type: Application
    Filed: September 15, 2011
    Publication date: October 24, 2013
    Applicant: JFE Steel Corporation
    Inventors: Katsumi Nakajima, Hayato Saito, Yoshimasa Funakawa, Noriaki Moriyasu, Takayuki Murata
  • Patent number: 8530782
    Abstract: A body structure for rolling stock is disclosed. The body structure may include an outside sheathing of a side construction, and a plurality of reinforcement members joined to said outside sheathing interiorly of said outside sheathing. Each of said plurality of reinforcement members may include a U-shaped part which is substantially U-shaped in cross-section and two fitting flange parts extending continuously from end edges of the U-shaped part in opposite directions. The fitting flange parts may be joined to said outside sheathing by laser welding, and the U-shaped part of at least one of said plurality of reinforcement members may be smaller in width than the U-shaped part of another of said plurality of reinforcement members provided on another part of said outside sheathing.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: September 10, 2013
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Osamu Komaki, Toshiyuki Hirashima, Takayuki Murata, Takeo Marutani
  • Publication number: 20130167985
    Abstract: A steel sheet including C at 0.05 to 0.15%, Si at 0.2 to 1.2%, Mn at 1.0 to 2.0%, P at not more than 0.04%, S at not more than 0.0030%, Al at 0.005 to 0.10%, N at not more than 0.005% and Ti at 0.03 to 0.13%, the balance being Fe and inevitable impurities, includes surface regions having an area fraction of bainite of less than 80% and an area fraction of a ferrite phase with a grain diameter of 2 to 15 ?m of not less than 10%, the surface regions extending from both surfaces of the steel sheet each to a depth of 1.5 to 3.0% relative to a total sheet thickness, as well as an inner region other than the surface regions having an area fraction of a bainite phase of more than 95%, and has a tensile strength of not less than 780 MPa.
    Type: Application
    Filed: September 15, 2011
    Publication date: July 4, 2013
    Applicant: JFE Steel Corporation
    Inventors: Hayato Saito, Katsumi Nakajima, Yoshimasa Funakawa, Noriaki Moriyasu, Takayuki Murata
  • Publication number: 20130160904
    Abstract: The steel sheet includes C: 0.04 to 0.12%, Si: 0.5 to 1.2%, Mn: 1.0 to 1.8%, P: not more than 0.03%, S: not more than 0.0030%, Al: 0.005 to 0.20%, N: not more than 0.005% and Ti: 0.03 to 0.13%, the balance being Fe and inevitable impurities, includes a microstructure containing a bainite phase at an area fraction exceeding 95% and having an average grain diameter of not more than 3 ?m, has a difference ?Hv1 of not more than 50 between a Vickers hardness value at 50 ?m from the surface and a Vickers hardness value at ¼ of a sheet thickness, has a difference ?Hv2 of not more than 40 between the Vickers hardness value at ¼ of the sheet thickness and a Vickers hardness value at ½ of the sheet thickness.
    Type: Application
    Filed: September 15, 2011
    Publication date: June 27, 2013
    Inventors: Hayato Saito, Katsumi Nakajima, Yoshimasa Funakawa, Noriaki Moriyasu, Takayuki Murata
  • Publication number: 20130087254
    Abstract: A high strength hot-rolled steel sheet has a composition containing more than 0.035% to 0.055% C, 0.2% or less Si, 0.35% or less Mn, 0.03% or less P, 0.03% or less S, 0.1% or less Al, 0.01% or less N, 0.08% to 0.25% Ti, and 0.0005% to 0.0035% B on a mass basis, solute B being 0.0005% or more, the remainder being Fe and unavoidable impurities; a matrix containing a ferrite phase having an area fraction of more than 95%; a microstructure in which Ti carbides having an average grain size of less than 10 nm are finely precipitated in grains of the ferrite phase and the volume fraction of the Ti carbides is 0.0015 to 0.007; and a tensile strength of 780 MPa or more.
    Type: Application
    Filed: June 23, 2011
    Publication date: April 11, 2013
    Applicant: JFE STEEL CORPORATION
    Inventors: Yoshimasa Funakawa, Tamako Ariga, Noriaki Moriyasu, Takayuki Murata
  • Publication number: 20130087252
    Abstract: A high-strength hot-rolled steel sheet has a composition including C: 0.005% or more and 0.050% or less, Si: 0.2% or less, Mn: 0.8% or less, P: 0.025% or less, S: 0.01% or less, N: 0.01% or less, Al: 0.06% or less, and Ti: 0.05% or more and 0.10% or less, on a mass percent basis, such that S, N, and Ti satisfy Ti?0.04+(N/14×48+S/32×48), the remainder being Fe and incidental impurities; a matrix in which a ferrite phase constitutes 95% by area or more of the entire structure; and a structure in which Ti-containing fine carbide having an average grain size of less than 10 nm is dispersedly precipitated, and the volume ratio of the fine carbide to the entire structure is 0.0007 or more.
    Type: Application
    Filed: June 24, 2011
    Publication date: April 11, 2013
    Applicant: JFE STEEL CORPORATION
    Inventors: Tamako Ariga, Katsumi Nakajima, Yoshimasa Funakawa, Noriaki Moriyasu, Takayuki Murata
  • Publication number: 20130061989
    Abstract: A high strength hot-rolled steel sheet has a tensile strength of not less than 780 MPa and exhibits excellent stretch flangeability and excellent fatigue resistance. A steel has a composition containing C at 0.05 to 0.15%, Si at 0.2 to 1.2%, Mn at 1.0 to 2.0%, P at not more than 0.04%, S at not more than 0.005%, Ti at 0.05 to 0.15%, Al at 0.005 to 0.10% and N at not more than 0.007%.
    Type: Application
    Filed: May 30, 2011
    Publication date: March 14, 2013
    Applicant: JFE Steel Corporation
    Inventors: Nobuyuki Nakamura, Hayato Saito, Katsumi Nakajima, Yoshimasa Funakawa, Noriaki Moriyasu, Takayuki Murata