Patents by Inventor Yoshiharu Yamamoto

Yoshiharu Yamamoto 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: 20190255649
    Abstract: A laser machining beam method is a method that is carried out by a laser beam machine including a laser oscillator that is a first laser oscillator which emits a pulse of a laser beam that is a first laser beam, and a laser oscillator that is a second laser oscillator which emits a pulse of a laser beam that is a second laser beam differing in wavelength or pulse width from the first laser beam. In the laser beam machining method, the first laser beam and the second laser beam are caused to alternate in irradiating a workpiece.
    Type: Application
    Filed: September 26, 2017
    Publication date: August 22, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yoshiharu KUROSAKI, Tatsuya YAMAMOTO, Kyohei ISHIKAWA, Masayuki SAIKI
  • Patent number: 10308139
    Abstract: A vehicle management method is provided for managing an electric vehicle by using a management server based on vehicle-specific ID information that defines a condition of use transmitted from an onboard controller. The vehicle management method includes acquiring vehicle ID information from the electric vehicle by using the management server; determining the vehicle ID information to be valid if the vehicle ID information acquired falls within a use period set in advance and determining the vehicle ID information to be invalid if the vehicle ID information acquired falls outside a use period set in advance; and applying a prescribed limitation to charging of a battery of the electric vehicle having the vehicle ID information upon determining that the vehicle ID information is invalid.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: June 4, 2019
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yoh Kuramoto, Isamu Kazama, Naoki Yamamoto, Daisuke Hatakenaka, Yoshiharu Tsuruoka
  • Patent number: 10011890
    Abstract: A method of producing sodium tungstate of this invention including allowing cemented carbide scrap containing tungsten to react with a molten salt containing sodium sulfate and having added thereto a metal oxide, to thereby obtain sodium tungstate.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: July 3, 2018
    Assignee: A.L.M.T. Corp.
    Inventors: Takeshi Itakura, Akihiko Ikegaya, Yoshiharu Yamamoto
  • Patent number: 9512504
    Abstract: Provided are a method for producing sodium tungstate by supplying an oxidant made of sodium nitrate or sodium nitrite to bring a tungsten containing material and the oxidant into contact with each other in an atmosphere containing oxygen to thereby continuously produce a reaction product; a method for collecting tungsten using the method; and an apparatus for producing sodium tungstate. Also provided are a method for producing a sodium tungstate aqueous solution in which a reductant is introduced into a melt containing the above-described reaction product which is then dissolved in water; and a method for collecting tungsten using the method.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: December 6, 2016
    Assignees: A.L.M.T Corp., SUMITOMO ELECTRIC HARDMETAL CORP., Sumitomo ELectric Industries, Ltd.
    Inventors: Yoshiharu Yamamoto, Kazuo Sasaya, Takayuki Fudo, Akira Nakano, Syunsuke Yamanaka, Takahisa Iguchi, Fumiatsu Sato, Akihiko Ikegaya
  • Patent number: 9502201
    Abstract: Provided is a tungsten electrode material that can improve the life of an electrode than conventional by the use of a material in place of thorium oxide. The tungsten electrode material includes a tungsten base alloy and oxide particles dispersed in the tungsten base alloy, wherein the oxide particle is an oxide solid solution in which a Zr oxide and/or a Hf oxide and an oxide of at least one or more kinds of rare earth elements selected from Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu are solid-dissolved.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: November 22, 2016
    Assignee: A.L.M.T. Corp.
    Inventors: Seiji Nakabayashi, Masahiro Katoh, Yoshiharu Yamamoto, Toshihiko Yoshida, Norihiko Hasegawa
  • Publication number: 20160160306
    Abstract: To provide a coil spring having excellent fatigue resistance. Disclosed is a coil spring made of steel, including (in % by mass, the same shall apply for a chemical composition): C: 0.40 to 0.70%; Si: 1.50 to 3.50%; Mn: 0.30 to 1.50%; Cr: 0.10 to 1.50%; V: 0.50 to 1.00%, and Al: 0.01% or less (excluding 0%), with the balance being iron and inevitable impurities, wherein an average crystal grain size number of prior austenite crystals in a depth of 0.3 mm from a surface is 11.0 or more, while a difference in grain size number between the respective prior austenite crystals is in a range of less than 3 from a grain size number observed at the maximum frequency, and wherein a carburized layer is provided in a depth of 0.30 to 1.00 mm from the surface, while an average Vickers hardness is 600 or higher at a position in a depth of (¬ľ)√ódiameter in the depth direction from the surface.
    Type: Application
    Filed: July 8, 2014
    Publication date: June 9, 2016
    Applicants: NHK Spring Co., Ltd., Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.), Shinko Wire Co., Ltd.
    Inventors: Fumio YAMAMOTO, Kengo TSURUGAI, Nao YOSHIHARA, Kei MASUMOTO, Hiroshi OURA, Tetsuo JINBO, Toshio MAEHATA, Yoshiharu YAMAMOTO
  • Patent number: 9249479
    Abstract: Provided are a method for producing sodium tungstate by supplying an oxidant made of sodium nitrate or sodium nitrite to bring a tungsten containing material and the oxidant into contact with each other in an atmosphere containing oxygen to thereby continuously produce a reaction product; a method for collecting tungsten using the method; and an apparatus for producing sodium tungstate. Also provided are a method for producing a sodium tungstate aqueous solution in which a reductant is introduced into a melt containing the above-described reaction product which is then dissolved in water; and a method for collecting tungsten using the method.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: February 2, 2016
    Assignees: A.L.M.T. Corp., SUMITOMO ELECTRIC HARDMETAL CORP., Sumitomo Electric Industries, Ltd.
    Inventors: Yoshiharu Yamamoto, Kazuo Sasaya, Takayuki Fudo, Akira Nakano, Syunsuke Yamanaka, Takahisa Iguchi, Fumiatsu Sato, Akihiko Ikegaya
  • Publication number: 20160024615
    Abstract: A method of producing sodium tungstate of this invention including allowing cemented carbide scrap containing tungsten to react with a molten salt containing sodium sulfate and having added thereto a metal oxide, to thereby obtain sodium tungstate.
    Type: Application
    Filed: March 6, 2014
    Publication date: January 28, 2016
    Applicant: A.L.M.T. Corp.
    Inventors: Takeshi ITAKURA, Akihiko IKEGAYA, Yoshiharu YAMAMOTO
  • Patent number: 8974674
    Abstract: A method for producing an ammonium tungstate aqueous solution includes the steps of: adding sulfuric acid to a solution containing tungstate ions; bringing the solution having the sulfuric acid added therein, into contact with an anion exchange resin; and bringing the anion exchange resin into contact with an aqueous solution containing ammonium ions.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: March 10, 2015
    Assignees: National University Corporation Nagoya University, A.L.M.T. Corp., Sumitomo Electric Hardmetal Corp., Sumitomo Electric Industries, Ltd.
    Inventors: Hideaki Ito, Takeshi Itakura, Yoshiharu Yamamoto, Kazuo Sasaya, Takuya Okuno, Fumiatsu Sato, Syunsuke Yamanaka, Akihiko Ikegaya
  • Patent number: 8926531
    Abstract: A body motion detection section (2) for continuously detecting the frequency of a user's activity as an activity level is provided. The activity level detected by the body motion detection section (2) is outputted to a fatigue detection section (3) for estimating a user's fatigue level on the basis of the activity level.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: January 6, 2015
    Assignees: Sharp Kabushiki Kaisha, The University of Tokyo
    Inventors: Motoki Sone, Katsuya Nakagawa, Yoshiharu Yamamoto, Zbigniew Struzik, Toru Nakamura
  • Patent number: 8801816
    Abstract: There are provided a cemented carbide high in thermal diffusivity and excellent in wear resistance, and a cutting tool including a base material formed of this cemented carbide. The cemented carbide is a WC based cemented carbide in which a hard phase mainly constituted of WC grains is bound by a binder phase mainly constituted of Co, and is used for a cutting tool. The binder phase is substantially constituted of Co, or Co and Ni. A total content of Co and Ni is not less than 4.5 mass % and not more than 15 mass %. In this cemented carbide, the WC grains have an average diameter of not less than 0.4 ?m and not more than 4 ?m.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: August 12, 2014
    Assignees: Sumitomo Electric Industries, Ltd., Sumitomo Electric Hardmetal Corp., A.L.M.T. Corp.
    Inventors: Takuya Okuno, Kazuhiro Hirose, Hideki Moriguchi, Akihiko Ikegaya, Kazuo Sasaya, Yoshiharu Yamamoto
  • Patent number: 8772465
    Abstract: It is intended to provide for a polycistronic expression pattern in a plant used as a host. The present invention provides a polynucleotide which comprises the following DNA (a) or (b) and functions as an IRES (internal ribosome entry site) in a plant: (a) DNA of the nucleotide sequence represented by SEQ ID NO: 1, 2, 3, or 4; or (b) DNA of a nucleotide sequence derived from the nucleotide sequence represented by SEQ ID NO: 1, 2, 3, or 4 by the substitution, deletion, addition, and insertion of one or more bases and having a function of positively regulating the translation of a nucleic acid located downstream thereof.
    Type: Grant
    Filed: January 13, 2005
    Date of Patent: July 8, 2014
    Assignee: Riken
    Inventors: Minami Matsui, Yoshiharu Yamamoto, Kazuhito Gohda, Kumiko Suzuki
  • Publication number: 20140119998
    Abstract: Provided are a method for producing sodium tungstate by supplying an oxidant made of sodium nitrate or sodium nitrite to bring a tungsten containing material and the oxidant into contact with each other in an atmosphere containing oxygen to thereby continuously produce a reaction product; a method for collecting tungsten using the method; and an apparatus for producing sodium tungstate. Also provided are a method for producing a sodium tungstate aqueous solution in which a reductant is introduced into a melt containing the above-described reaction product which is then dissolved in water; and a method for collecting tungsten using the method.
    Type: Application
    Filed: December 23, 2013
    Publication date: May 1, 2014
    Applicants: A.L.M.T. Corp., Sumitomo Electric Industries, Ltd., Sumitomo Electric Hardmetal Corp.
    Inventors: Yoshiharu Yamamoto, Kazuo Sasaya, Takayuki Fudo, Akira Nakano, Syunsuke Yamanaka, Takahisa Iguchi, Fumiatsu Sato, Akihiko Ikegaya
  • Publication number: 20140112847
    Abstract: Provided are a method for producing sodium tungstate by supplying an oxidant made of sodium nitrate or sodium nitrite to bring a tungsten containing material and the oxidant into contact with each other in an atmosphere containing oxygen to thereby continuously produce a reaction product; a method for collecting tungsten using the method; and an apparatus for producing sodium tungstate. Also provided are a method for producing a sodium tungstate aqueous solution in which a reductant is introduced into a melt containing the above-described reaction product which is then dissolved in water; and a method for collecting tungsten using the method.
    Type: Application
    Filed: December 23, 2013
    Publication date: April 24, 2014
    Applicants: A.L.M.T. Corp., Sumitomo Electric Industries, Ltd., Sumitomo Electric Hardmetal Corp.
    Inventors: Yoshiharu Yamamoto, Kazuo Sasaya, Takayuki Fudo, Akira Nakano, Syunsuke Yamanaka, Takahisa Iguchi, Fumiatsu Sato, Akihiko Ikegaya
  • Patent number: 8632747
    Abstract: Provided are a method for producing sodium tungstate by supplying an oxidant made of sodium nitrate or sodium nitrite to bring a tungsten containing material and the oxidant into contact with each other in an atmosphere containing oxygen to thereby continuously produce a reaction product; a method for collecting tungsten using the method; and an apparatus for producing sodium tungstate. Also provided are a method for producing a sodium tungstate aqueous solution in which a reductant is introduced into a melt containing the above-described reaction product which is then dissolved in water; and a method for collecting tungsten using the method.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: January 21, 2014
    Assignees: A.L.M.T. Corp., Sumitomo Electric Hardmetal Corp., Sumitomo Electric Industries, Ltd.
    Inventors: Yoshiharu Yamamoto, Kazuo Sasaya, Takayuki Fudo, Akira Nakano, Syunsuke Yamanaka, Takahisa Iguchi, Fumiatsu Sato, Akihiko Ikegaya
  • Patent number: 8419955
    Abstract: An antireflection structure that can be formed in a desired shape, and a method for manufacturing the same are provided. An antireflection structure 100 includes a resin layer 200 formed in a desired shape, and inorganic material fine particles 201 dispersed inside the resin layer. A plurality of fine concaves 202 having an average inner diameter shorter than or equal to the minimum wavelength of light whose reflection should be suppressed are formed at the surface of the antireflection structure 100, thereby reducing the equivalent refractive index at the surface of the resin layer 200. The fine concaves 202 are formed by, after forming a composite material in which the nanosized inorganic material fine particles 201 are dispersed in the resin layer, dissolving the inorganic material fine particles 201 dispersed at the surface of the resin layer 200, using a solvent that dissolves only the inorganic material fine particles 201.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: April 16, 2013
    Assignee: Panasonic Corporation
    Inventors: Yoshiharu Yamamoto, Kenichi Ikeda, Yoshiki Hayashida
  • Publication number: 20120328506
    Abstract: A method for producing an ammonium tungstate aqueous solution includes the steps of: adding sulfuric acid to a solution containing tungstate ions; bringing the solution having the sulfuric acid added therein, into contact with an anion exchange resin; and bringing the anion exchange resin into contact with an aqueous solution containing ammonium ions.
    Type: Application
    Filed: March 5, 2010
    Publication date: December 27, 2012
    Applicants: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY, SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC HARDMETAL CORP., A.L.M.T. CORP.
    Inventors: Hideaki Ito, Takeshi Itakura, Yoshiharu Yamamoto, Kazuo Sasaya, Takuya Okuno, Fumiatsu Sato, Syunsuke Yamanaka, Akihiko Ikegaya
  • Publication number: 20120144753
    Abstract: There are provided a cemented carbide high in thermal diffusivity and excellent in wear resistance, and a cutting tool including a base material formed of this cemented carbide. The cemented carbide is a WC based cemented carbide in which a hard phase mainly constituted of WC grains is bound by a binder phase mainly constituted of Co, and is used for a cutting tool. The binder phase is substantially constituted of Co, or Co and Ni. A total content of Co and Ni is not less than 4.5 mass % and not more than 15 mass %. In this cemented carbide, the WC grains have an average diameter of not less than 0.4 ?m and not more than 4 ?m.
    Type: Application
    Filed: August 11, 2010
    Publication date: June 14, 2012
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., A.L.M.T. CORP., SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Takuya Okuno, Kazuhiro Hirose, Hideki Moriguchi, Akihiko Ikegaya, Kazuo Sasaya, Yoshiharu Yamamoto
  • Patent number: 8113871
    Abstract: A connector assembly has a first connector, a second connector matable with the first connector along a mating direction, a mating assistance mechanism, a mating maintenance mechanism, and a detection mechanism. The mating maintenance mechanism includes a stopper, an engagement portion and an elastic support. The engagement portion is configured to be engaged with the stopper in a mating state of the first connector and the second connector so as to maintain the mating state. The detection mechanism is operable to detect the mating state and includes a short-circuit member and first and second terminals having first and second contacting sections, respectively, extending along the mating direction. The short-circuit member is arranged to establish a short circuit between the first terminal and the second terminal in the mating state.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: February 14, 2012
    Assignee: Japan Aviation Electronics Industry, Limited
    Inventors: Nobuhisa Todo, Akira Ohno, Yuji Hamaoka, Yoshiharu Yamamoto
  • Publication number: 20110300040
    Abstract: Provided are a method for producing sodium tungstate by supplying an oxidant made of sodium nitrate or sodium nitrite to bring a tungsten containing material and the oxidant into contact with each other in an atmosphere containing oxygen to thereby continuously produce a reaction product; a method for collecting tungsten using the method; and an apparatus for producing sodium tungstate. Also provided are a method for producing a sodium tungstate aqueous solution in which a reductant is introduced into a melt containing the above-described reaction product which is then dissolved in water; and a method for collecting tungsten using the method.
    Type: Application
    Filed: March 5, 2010
    Publication date: December 8, 2011
    Applicants: A.L.M.T. CORP., SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Yoshiharu Yamamoto, Kazuo Sasaya, Takayuki Fudo, Akira Nakano, Syunsuke Yamanaka, Takahisa Iguchi, Fumiatsu Sato, Akihiko Ikegaya