Patents by Inventor Haruhisa Toyoda

Haruhisa Toyoda 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: 10749202
    Abstract: A redox flow battery includes a cell frame having a frame body in which a sealing groove is formed and a sealing member disposed in the sealing groove. The redox flow battery includes an adhesive that fixes the sealing member to the sealing groove, and a type A durometer hardness of the adhesive after curing is 100 or less. Preferably, the type A durometer hardness of the adhesive after curing is less than or equal to a type A durometer hardness of the sealing member.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: August 18, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kousuke Shiraki, Takashi Kanno, Haruhisa Toyoda, Takefumi Ito, Masahiro Kuwabara, Hideyuki Yamaguchi, Hayato Fujita, Kiyoaki Hayashi
  • Publication number: 20190348692
    Abstract: A cell frame includes a bipolar plate and a frame body. The cell frame has an introduction-side flow guiding channel connecting to an inlet slit and extending in a width direction of the cell frame, a drainage-side flow guiding channel connecting to an outlet slit and extending in the width direction, and a diffusion channel unit configured to allow the introduction-side flow guiding channel to communicate with the drainage-side flow guiding channel. The diffusion channel unit includes an introduction-side vertical channel branching off the introduction-side flow guiding channel and extending toward, but not directly communicating with, the drainage-side flow guiding channel; a drainage-side vertical channel branching off the drainage-side flow guiding channel and extending toward, but not directly communicating with, the introduction-side flow guiding channel; and one or more horizontal channels communicating with both the introduction-side vertical channel and the drainage-side vertical channel.
    Type: Application
    Filed: July 27, 2017
    Publication date: November 14, 2019
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Hayato FUJITA, Haruhisa TOYODA
  • Publication number: 20190245637
    Abstract: A transmitter includes a memory, and a processor configured to generate a first clock parallel signal by performing serial-parallel conversion of a first clock signal acquired by using a reference clock and generate a second clock parallel signal by performing serial-parallel conversion of a second clock signal acquired by using the reference clock, generate first compressed information by compressing the first clock parallel signal on the basis of clock periodicity and generate second compressed information by compressing the second clock parallel signal based on the clock periodicity, generate a serial signal by adding a synchronization signal indicating a top of a multiplexed signal to the multiplexed signal generated by time-division multiplexing of the first compressed information and the second compressed information, and transmit the serial signal to a receiver.
    Type: Application
    Filed: February 5, 2019
    Publication date: August 8, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Hitomi Toyoda, EIJI GOBARU, Haruhisa Fukano, Takuya Nishioka, Atsunori MACHIDA
  • Publication number: 20190067726
    Abstract: A redox flow battery includes a cell frame having a frame body in which a sealing groove is formed and a sealing member disposed in the sealing groove. The redox flow battery includes an adhesive that fixes the sealing member to the sealing groove, and a type A durometer hardness of the adhesive after curing is 100 or less. Preferably, the type A durometer hardness of the adhesive after curing is less than or equal to a type A durometer hardness of the sealing member.
    Type: Application
    Filed: January 25, 2017
    Publication date: February 28, 2019
    Inventors: Kousuke Shiraki, Takashi Kanno, Haruhisa Toyoda, Takefumi Ito, Masahiro Kuwabara, Hideyuki Yamaguchi, Hayato Fujita, Kiyoaki Hayashi
  • Patent number: 10193178
    Abstract: A frame body for a redox flow battery is provided with a window. The expressions A>C, B>D, and (B/A)?0.2 are satisfied, where A represents the length of a long side of a rectangle that envelops the window, B represents the width of a horizontal frame corresponding to the long side, C represents the length of a short side of the rectangle, and D represents the width of a vertical frame corresponding to the short side.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: January 29, 2019
    Assignee: Sumitomo Electric Inductries, Ltd.
    Inventors: Masahiro Kuwabara, Haruhisa Toyoda, Takashi Kanno, Takefumi Ito, Hideyuki Yamaguchi, Hayato Fujita, Kousuke Shiraki, Kiyoaki Hayashi
  • Publication number: 20180277858
    Abstract: A bipolar plate for a battery has two surfaces on which a positive electrode and a negative electrode are to be disposed respectively. At least one of the surfaces of the bipolar plate is provided with a plurality of groove sections through which an electrolyte flows and a ridge section located between the groove sections that are adjacent to each other. The groove sections include an introduction groove section and a discharge groove section that are not in communication with each other. The ridge section includes an uneven portion configured to suppress sliding of the positive electrode or the negative electrode in a direction in which the adjacent groove sections are arranged in parallel. The uneven portion includes a rough surface provided on at least a part of a surface of the ridge section and having an arithmetical mean roughness Ra of 0.1 ?m to 10 ?m inclusive.
    Type: Application
    Filed: March 16, 2017
    Publication date: September 27, 2018
    Inventors: Hayato Fujita, Masahiro Kuwabara, Takashi Kanno, Haruhisa Toyoda, Hideyuki Yamaguchi, Kousuke Shiraki, Kiyoaki Hayashi, Takefumi Ito
  • Publication number: 20180108930
    Abstract: A frame body for a redox flow battery is provided with a window. The expressions A>C, B>D, and (B/A)?0.2 are satisfied, where A represents the length of a long side of a rectangle that envelops the window, B represents the width of a horizontal frame corresponding to the long side, C represents the length of a short side of the rectangle, and D represents the width of a vertical frame corresponding to the short side.
    Type: Application
    Filed: February 28, 2017
    Publication date: April 19, 2018
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Masahiro Kuwabara, Haruhisa Toyoda, Takashi Kanno, Takefumi Ito, Hideyuki Yamaguchi, Hayato Fujita, Kousuke Shiraki, Kiyoaki Hayashi
  • Patent number: 8758906
    Abstract: A soft magnetic material includes a plurality of composite magnetic particles. Each of the plurality of composite magnetic particles has: a metal magnetic particle including iron; a lower film surrounding the surface of the metal magnetic particle and including a nonferrous metal; and an insulating upper film surrounding the surface of the lower film and including at least one of oxygen and carbon. The nonferrous metal has an affinity with the at least one of oxygen and carbon included in the upper film that is larger than such affinity of iron; or the nonferrous metal has a diffusion coefficient with respect to the at least one of oxygen and carbon included in the upper film that is smaller than such diffusion coefficient of iron. This configuration provides desirable magnetic properties.
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: June 24, 2014
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Toru Maeda, Naoto Igarashi, Haruhisa Toyoda, Kazuhiro Hirose
  • Patent number: 8686820
    Abstract: Provided is a reactor having a small size with consideration of loss reduction. A reactor 1A includes a coil 10 and a magnetic core 20. The coil 10 is formed by winding a wire. The magnetic core 20 includes an internal core portion 21 that is inserted through the coil 10 and a couple core portion 23 that is coupled to an end of the internal core portion 21 and that covers an outer periphery of the coil 10. The core portions 21 and 23 form a closed magnetic path. An interposed core portion 25 is disposed between the coil 10 and the internal core portion 21. The reactor 1A satisfies 0<S2/S1<0.15, where S1 is an inner cross-sectional area of the coil 10 and S2 is a cross-sectional area of the interposed core portion 25; and satisfies B1>B2 and B1>B3, where B1 is a saturation magnetic flux density of the internal core portion 21, B2 is a saturation magnetic flux density of the couple core portion 23, and B3 is a saturation magnetic flux density of the interposed core portion 25.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: April 1, 2014
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kazuhiro Inaba, Shinichiro Yamamoto, Haruhisa Toyoda
  • Patent number: 8557330
    Abstract: A manufacturing method of a soft magnetic material has a step of preparing a metal magnetic particle containing iron as the main component, and a step of forming an insulating film surrounding the surface of the metal magnetic particle. The step of forming the insulating film includes a step of mixing and stirring the metal magnetic particle, aluminum alkoxide, silicon alkoxide, and phosphoric acid.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: October 15, 2013
    Assignees: Sumitomo Electric Industries, Ltd., Toda Kogyo Corp.
    Inventors: Toru Maeda, Naoto Igarashi, Haruhisa Toyoda, Seiji Ishitani, Hiroko Morii, Kazuyuki Hayashi
  • Patent number: 8323725
    Abstract: A soft magnetic material is a soft magnetic material including a composite magnetic particle (30) having a metal magnetic particle (10) mainly composed of Fe and an insulating coating (20) covering metal magnetic particle (10), and insulating coating (20) contains an iron phosphate compound and an aluminum phosphate compound. The atomic ratio of Fe contained in a contact surface of insulating coating (20) in contact with metal magnetic particle (10) is larger than the atomic ratio of Fe contained in the surface of insulating coating (20). The atomic ratio of Al contained in the contact surface of insulating coating (20) in contact with metal magnetic particle (10) is smaller than the atomic ratio of Al contained in the surface of insulating coating (20). Thus, iron loss can be reduced.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: December 4, 2012
    Assignees: Sumitomo Electric Industries, Ltd., Toda Kogyo Corp.
    Inventors: Toru Maeda, Naoto Igarashi, Haruhisa Toyoda, Hirokazu Kugai, Kazuyuki Hayashi, Hiroko Morii, Seiji Ishitani
  • Publication number: 20120218066
    Abstract: Provided is a reactor having a small size with consideration of loss reduction. A reactor 1A includes a coil 10 and a magnetic core 20. The coil 10 is formed by winding a wire. The magnetic core 20 includes an internal core portion 21 that is inserted through the coil 10 and a couple core portion 23 that is coupled to an end of the internal core portion 21 and that covers an outer periphery of the coil 10. The core portions 21 and 23 form a closed magnetic path. An interposed core portion 25 is disposed between the coil 10 and the internal core portion 21. The reactor 1A satisfies 0<S2/S1<0.15, where S1 is an inner cross-sectional area of the coil 10 and S2 is a cross-sectional area of the interposed core portion 25; and satisfies B1>B2 and B1>B3, where B1 is a saturation magnetic flux density of the internal core portion 21, B2 is a saturation magnetic flux density of the couple core portion 23, and B3 is a saturation magnetic flux density of the interposed core portion 25.
    Type: Application
    Filed: May 27, 2011
    Publication date: August 30, 2012
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Kazuhiro Inaba, Shinichiro Yamamoto, Haruhisa Toyoda
  • Publication number: 20120164320
    Abstract: A manufacturing method of a soft magnetic material has a step of preparing a metal magnetic particle containing iron as the main component, and a step of forming an insulating film surrounding the surface of the metal magnetic particle. The step of forming the insulating film includes a step of mixing and stirring the metal magnetic particle, aluminum alkoxide, silicon alkoxide, and phosphoric acid.
    Type: Application
    Filed: March 1, 2012
    Publication date: June 28, 2012
    Applicants: TODA KOGYO CORP., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Toru Maeda, Naoto Igarashi, Haruhisa Toyoda, Seiji Ishitani, Hiroko Morii, Kazuyuki Hayashi
  • Patent number: 8153256
    Abstract: The soft magnetic material includes a plurality of composite magnetic particles having a metal magnetic particle and an insulating film surrounding the surface of the metal magnetic particle. The metal magnetic particle contains iron as the main component. The insulating film contains aluminum, silicon, phosphorus, and oxygen. The insulating film satisfies the relationship 0.4?MAl/(MAl+MSi)?0.9 and the relationship of 0.25?(MAl+MSi)/MP?1.0 in the case that molar amount of aluminum contained in the insulating film is represented by MAl, the sum of the molar amount of aluminum contained in the insulating film and the molar amount of silicon contained in the insulating film is represented by (MAl+MSi), and the molar amount of phosphorus contained in the insulating film is represented by MP.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: April 10, 2012
    Assignees: Sumitomo Electric Industries, Ltd., Toda Kogyo Corp.
    Inventors: Toru Maeda, Naoto Igarashi, Haruhisa Toyoda, Seiji Ishitani, Hiroko Morii, Kazuyuki Hayashi
  • Patent number: 7998361
    Abstract: A soft magnetic material includes: a plurality of composite magnetic particles formed from a metal magnetic particle and an insulative coating surrounding a surface of the metal magnetic particle and containing metallic salt phosphate and/or oxide; and a lubricant formed as fine particles added at a proportion of at least 0.001 percent by mass and no more than 0.1 percent by mass relative to the plurality of composite magnetic particles. With this structure, superior lubrication is provided during compacting and desired magnetic characteristics can be obtained after compacting.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: August 16, 2011
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kazuhiro Hirose, Haruhisa Toyoda, Takao Nishioka, Naoto Igarashi, Toru Maeda, Yoshiyuki Shimada
  • Publication number: 20110104476
    Abstract: A soft magnetic material includes a composite magnetic particle and an organic substance. The composite magnetic particle has a metallic magnetic particle and a coating layer coating the metallic magnetic particle and containing an oxide therein. The organic substance is formed by adding at least one of a thermoplastic resin and a higher fatty acid having an effect of increasing resistivity of the material, to a non-thermoplastic resin having an effect of improving durability such as material fatigue limit. The organic substance is contained in the soft magnetic material by not less than 0.001% by mass and not more than 0.2% by mass. The present invention provides a soft magnetic material having high magnetic property and mechanical strength and also having fatigue property and resistivity satisfying durability enough for use as a motor core or the like, and a method for manufacturing the same. Further, the invention provides a motor core and a transformer core made of the soft magnetic material.
    Type: Application
    Filed: May 28, 2004
    Publication date: May 5, 2011
    Inventors: Haruhisa Toyoda, Daichi Kawaguchi, Shohzoh Tanaka, Kazuhiko Ueda
  • Publication number: 20110045174
    Abstract: A method of producing a soft magnetic material is disclosed, wherein the method includes forming a plurality of metal magnetic particles having a ratio of a maximum diameter to an equivalent circle diameter greater than 1.0 and at most 1.3, forming irregularities on a surface of each of the plurality of metal magnetic particles such that a specific surface area of each of the plurality of metal magnetic particles is at least 0.10 m2/g, and coating the plurality of metal magnetic particles with an insulating coating. The irregularities are formed by immersing the plurality of metal magnetic particles in an aqueous sulfuric acid.
    Type: Application
    Filed: November 1, 2010
    Publication date: February 24, 2011
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Toru Maeda, Naoto Igarashi, Haruhisa Toyoda
  • Publication number: 20100255188
    Abstract: A soft magnetic material is a soft magnetic material including a composite magnetic particle (30) having a metal magnetic particle (10) mainly composed of Fe and an insulating coating (20) covering metal magnetic particle (10), and insulating coating (20) contains an iron phosphate compound and an aluminum phosphate compound. The atomic ratio of Fe contained in a contact surface of insulating coating (20) in contact with metal magnetic particle (10) is larger than the atomic ratio of Fe contained in the surface of insulating coating (20). The atomic ratio of Al contained in the contact surface of insulating coating (20) in contact with metal magnetic particle (10) is smaller than the atomic ratio of Al contained in the surface of insulating coating (20). Thus, iron loss can be reduced.
    Type: Application
    Filed: June 16, 2010
    Publication date: October 7, 2010
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., TODA KOGYO CORP.
    Inventors: Toru MAEDA, Naoto Igarashi, Haruhisa Toyoda, Hirokazu Kugai, Kazuyuki Hayashi, Hiroko Morii, Seiji Ishitani
  • Patent number: 7767034
    Abstract: A soft magnetic material is a soft magnetic material including a composite magnetic particle (30) having a metal magnetic particle (10) mainly composed of Fe and an insulating coating (20) covering metal magnetic particle (10), and insulating coating (20) contains an iron phosphate compound and an aluminum phosphate compound. The atomic ratio of Fe contained in a contact surface of insulating coating (20) in contact with metal magnetic particle (10) is larger than the atomic ratio of Fe contained in the surface of insulating coating (20). The atomic ratio of Al contained in the contact surface of insulating coating (20) in contact with metal magnetic particle (10) is smaller than the atomic ratio of Al contained in the surface of insulating coating (20). Thus, iron loss can be reduced.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: August 3, 2010
    Assignees: Sumitomo Electric Industries, Ltd., Toda Kogyo Corp.
    Inventors: Toru Maeda, Naoto Igarashi, Haruhisa Toyoda, Hirokazu Kugai, Kazuyuki Hayashi, Hiroko Morii, Seiji Ishitani
  • Patent number: 7758706
    Abstract: A method for producing a dust core compact includes the steps of forming a compact component by pressure-forming a soft magnetic powder having an average particle diameter Da under a pressure Pa, and forming a compact by pressure-forming a soft magnetic powder having an average particle diameter Db and the compact component under a pressure Pb. Average particle diameters Da and Db of the soft magnetic powders satisfy relationship Da/Db?2, and pressures Pa and Pb applied during the pressure-forming satisfy relationship Pa/Pb?½. With this structure, a method for producing a dust core compact exhibiting a high strength and capable of being fabricated even when it has a complex shape, and the dust core compact can be provided.
    Type: Grant
    Filed: September 16, 2005
    Date of Patent: July 20, 2010
    Assignees: Sumitomo Electric Industries, Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Kazuhiro Hirose, Haruhisa Toyoda, Atsushi Sato, Takao Nishioka, Yasuhiro Endo, Ryoji Mizutani, Kazutaka Tatematsu, Kenji Harada