Patents by Inventor Masashi Miyagawa

Masashi Miyagawa 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: 20200318529
    Abstract: A cooling circuit includes a first coolant passage in which a coolant flows, a second coolant passage in which the coolant flows, a thermostat, and an oil cooler configured to heat or cool oil. The thermostat interrupts a flow of the coolant flowing through the first coolant passage when a temperature of the coolant flowing into the thermostat is lower than a predetermined temperature, and allows the coolant to flow through the first coolant passage when the temperature of the coolant is at or above a predetermined temperature. The oil cooler includes a first coolant inflow port, a first coolant outflow port, a second coolant inflow port, and a second coolant outflow port. The oil cooler heats or cools the oil by heat exchange between the coolant flowing from the first coolant inflow port or/and the second coolant inflow port and the oil.
    Type: Application
    Filed: June 17, 2020
    Publication date: October 8, 2020
    Inventor: Masashi MIYAGAWA
  • Patent number: 10725594
    Abstract: A touch panel includes a sensor unit. The sensor unit includes a base film stretched by heat, an electrode portion, which is made of a mixture of a conductive material and a thermoplastic resin and is formed on at least one surface of the base film, and a stretching supporting layer made of a thermoplastic resin to cover the electrode portion.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: July 28, 2020
    Assignee: FUTABA CORPORATION
    Inventors: Tsubasa Mitsuhashi, Masashi Miyagawa, Kiyoyuki Deguchi, Tomohiro Ishii, Yasuyuki Naito
  • Patent number: 10260461
    Abstract: A low temperature cooling device applied to an internal combustion engine includes an EGR device, a low temperature coolant circuit, a prediction unit predicting whether an EGR cooler falls into a state where a cooling performance falls short according to at least one of an operating state of an internal combustion engine and an outside air environment while a control that dehumidifies an EGR gas by cooling the EGR gas in the EGR cooler is performed, and a control unit performing at least one of a first increase control that increases a flow rate of a coolant flowing into the EGR cooler, a second increase control that increases an air rate of a radiator fan cooling a radiator, and an inhibition control that inhibits the EGR gas from flowing back when the prediction unit predicts that the EGR cooler falls into the state where the cooling performance falls short.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: April 16, 2019
    Assignee: DENSO CORPORATION
    Inventors: Keitarou Minami, Masashi Miyagawa, Hideaki Ichihara
  • Patent number: 10239321
    Abstract: A liquid ejection head for ejecting a liquid, including a flow passage member, which is composed of a first resin and which is provided with a flow passage configured to come into contact with the liquid, and a plurality of resin-coated members having a core-sheath structure composed of a filler constituting an inner core and a second resin constituting an outer core, wherein the plurality of the resin-coated members are contained in the flow passage member.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: March 26, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Isao Imamura, Masashi Miyagawa
  • Publication number: 20180275797
    Abstract: A touch panel includes a sensor unit. The sensor unit includes a base film stretched by heat, an electrode portion, which is made of a mixture of a conductive material and a thermoplastic resin and is formed on at least one surface of the base film, and a stretching supporting layer made of a thermoplastic resin to cover the electrode portion.
    Type: Application
    Filed: March 20, 2018
    Publication date: September 27, 2018
    Inventors: Tsubasa MITSUHASHI, Masashi MIYAGAWA, Kiyoyuki DEGUCHI, Tomohiro ISHII, Yasuyuki NAITO
  • Publication number: 20180119651
    Abstract: A low temperature cooling device applied to an internal combustion engine includes an EGR device, a low temperature coolant circuit, a prediction unit predicting whether an EGR cooler falls into a state where a cooling performance falls short according to at least one of an operating state of an internal combustion engine and an outside air environment while a control that dehumidifies an EGR gas by cooling the EGR gas in the EGR cooler is performed, and a control unit performing at least one of a first increase control that increases a flow rate of a coolant flowing into the EGR cooler, a second increase control that increases an air rate of a radiator fan cooling a radiator, and an inhibition control that inhibits the EGR gas from flowing back when the prediction unit predicts that the EGR cooler falls into the state where the cooling performance falls short.
    Type: Application
    Filed: April 14, 2016
    Publication date: May 3, 2018
    Inventors: Keitarou MINAMI, Masashi MIYAGAWA, Hideaki ICHIHARA
  • Publication number: 20180100471
    Abstract: A low temperature cooling device applied to an internal combustion engine includes an EGR device returning a part of an exhaust gas of an internal combustion engine to an intake passage as an EGR gas, a low temperature coolant circuit circulating a coolant through an intercooler cooling an intake gas of the internal combustion engine and an EGR cooler cooling the EGR gas, a flow rate control valve regulating a flow rate ratio between the coolant flowing into the intercooler and the coolant flowing into the EGR cooler, and a control unit varying the flow rate ratio between the coolant flowing into the intercooler and the coolant flowing into the EGR cooler by controlling the flow rate control valve according to an outside air environment and an operating state of the internal combustion engine.
    Type: Application
    Filed: April 14, 2016
    Publication date: April 12, 2018
    Inventors: Keitarou MINAMI, Masashi MIYAGAWA, Hideaki ICHIHARA
  • Publication number: 20170157937
    Abstract: A liquid ejection head for ejecting a liquid, including a flow passage member, which is composed of a first resin and which is provided with a flow passage configured to come into contact with the liquid, and a plurality of resin-coated members having a core-sheath structure composed of a filler constituting an inner core and a second resin constituting an outer core, wherein the plurality of the resin-coated members are contained in the flow passage member.
    Type: Application
    Filed: November 28, 2016
    Publication date: June 8, 2017
    Inventors: Isao Imamura, Masashi Miyagawa
  • Patent number: 9470138
    Abstract: A coolant circulation system for an engine includes a cylinder block passage and a cylinder head passage, which are provided respectively in a cylinder block portion and a cylinder head portion of the engine. These two passages serve as passages through which a coolant flows to cool the cylinder block portion and the cylinder head portion. The cylinder block passage and the cylinder head passage are connected in parallel to each other. The coolant circulation system further includes a first heat exchanger connected to the cylinder block passage, a second heat exchanger connected to the cylinder head passage, a radiator connected to both the cylinder block passage and the cylinder head passage, and a control unit capable of controlling flow rates of the coolant flowing through the cylinder block passage and the cylinder head passage respectively.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: October 18, 2016
    Assignee: DENSO CORPORATION
    Inventor: Masashi Miyagawa
  • Patent number: 8980112
    Abstract: A method for renewing an organic solvent includes an ultraviolet irradiation step in which an organic solvent containing a resin is irradiated with ultraviolet rays so as to enhance the ability of the organic solvent to dissolve the resin. A method for using an organic solvent and a method for producing an inkjet recording head utilize the method for renewing an organic solvent.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: March 17, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masanori Jinnoh, Masashi Miyagawa
  • Publication number: 20140138349
    Abstract: A method for renewing an organic solvent includes an ultraviolet irradiation step in which an organic solvent containing a resin is irradiated with ultraviolet rays so as to enhance the ability of the organic solvent to dissolve the resin. A method for using an organic solvent and a method for producing an inkjet recording head utilize the method for renewing an organic solvent.
    Type: Application
    Filed: November 18, 2013
    Publication date: May 22, 2014
    Inventors: Masanori Jinnoh, Masashi Miyagawa
  • Patent number: 8613495
    Abstract: A liquid ejection head including an ejection device substrate having a substrate provided with an energy-generating element that generates energy for ejecting a liquid, a liquid supply member that supplies the liquid to the ejection device substrate, and a support member that is provided between and joined to the ejection device substrate and the liquid supply member. The support member has at least two liquid supply flow paths that are through-holes extending through the support member and has a projected or depressed portion at its joint surface with respect to the liquid supply member. A spacing between two adjoining liquid supply flow paths at the joint surface with respect to the liquid supply member is larger than a spacing between the adjoining two liquid supply flow paths at a joint surface of the support member with respect to the ejection device substrate.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: December 24, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiaki Kaneko, Shozo Hattori, Masashi Miyagawa
  • Patent number: 8316927
    Abstract: A waste heat recovery device includes a heat pipe in which a working fluid for transporting heat is enclosed, and a mode-switching valve for switching a heat recovery mode and a heat insulation mode. The heat pipe has a heating part for heating and evaporating the working fluid and a cooling part for cooling and condensing the evaporated working fluid. The heating part is made of a steel through which hydrogen gas permeates about at 500° C. and higher. In the heat recovery mode, the waste heat recovery device recovers heat of exhaust gas by using the heat pipe. Furthermore, in the heat insulation mode, a heat transport from the heating part to the cooling part is stopped.
    Type: Grant
    Filed: June 5, 2007
    Date of Patent: November 27, 2012
    Assignee: Denso Corporation
    Inventors: Kimio Kohara, Seiji Inoue, Yuuki Mukoubara, Yasutoshi Yamanaka, Masashi Miyagawa
  • Publication number: 20120236077
    Abstract: A liquid ejection head including an ejection device substrate having a substrate provided with an energy-generating element that generates energy for ejecting a liquid, a liquid supply member that supplies the liquid to the ejection device substrate, and a support member that is provided between and joined to the ejection device substrate and the liquid supply member. The support member has at least two liquid supply flow paths that are through-holes extending through the support member and has a projected or depressed portion at its joint surface with respect to the liquid supply member. A spacing between two adjoining liquid supply flow paths at the joint surface with respect to the liquid supply member is larger than a spacing between the adjoining two liquid supply flow paths at a joint surface of the support member with respect to the ejection device substrate.
    Type: Application
    Filed: February 6, 2012
    Publication date: September 20, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Toshiaki Kaneko, Shozo Hattori, Masashi Miyagawa
  • Patent number: 8251496
    Abstract: The invention provides, between a discharge element substrate and a supply member, a support member containing a mixture that contains: a material having an affinity for a material forming the supply member; and another material.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: August 28, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shozo Hattori, Masashi Miyagawa, Ryoichi Matsumoto, Toshiaki Kaneko
  • Publication number: 20110279547
    Abstract: The invention provides, between a discharge element substrate and a supply member, a support member containing a mixture that contains: a material having an affinity for a material forming the supply member; and another material.
    Type: Application
    Filed: May 21, 2009
    Publication date: November 17, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Shozo Hattori, Masashi Miyagawa, Ryoichi Matsumoto, Toshiaki Kaneko
  • Patent number: 8056616
    Abstract: An exhaust heat recovery apparatus includes an evaporation unit and a condensation unit communicated with the evaporation unit such that an operation fluid circulates therein. The evaporation unit is disposed in a first fluid passage through which a first fluid flows, and performs heat exchange between the first fluid and the operation fluid, thereby evaporating the operation fluid. The condensation unit is disposed in a second fluid passage through which a second fluid flows, and performs heat exchange between the second fluid and the operation fluid. The exhaust heat recovery apparatus further includes a wet area increasing member in a tube of the evaporation unit for increasing a wet area of the operation fluid due to surface tension of the operation fluid. The wet area increasing member is disposed adjacent to an inner surface of the tube and has extension surfaces extending in directions intersecting with the inner surface.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: November 15, 2011
    Assignee: Denso Corporation
    Inventors: Masashi Miyagawa, Kimio Kohara
  • Patent number: 8035290
    Abstract: A fluorescent display device includes an aluminum wiring layer formed on an insulating substrate; an insulating layer formed on the aluminum wiring layer, the insulating layer being provided with a through-hole disposed on the aluminum wiring layer; a conductive layer filled in the through-hole. The fluorescent display device further includes an anode conductor formed on the insulating layer to cover the conductive layer and a phosphor layer formed on the anode conductor. The conductive layer is formed of solid mixture containing aluminum and graphite.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: October 11, 2011
    Assignee: Futaba Corporation
    Inventors: Masahiro Kato, Toshiyuki Misonou, Masashi Miyagawa
  • Patent number: 8020524
    Abstract: An exhaust heat recovery apparatus includes an evaporator and a condenser. The evaporator and the condenser form an operation medium circuit such that an operation medium circulates through the evaporator and the condenser. The evaporator has tubes and is disposed in a duct part through which an exhaust gas generated from an engine flows. The condenser is disposed in a heated fluid circuit through which a heated fluid flows for heating the heated fluid by condensation of the operation medium. The heated fluid circuit is separate from an engine coolant circuit through which an engine coolant for cooling the engine flows. The evaporator further has a fin between the tubes. The fin is provided with an operation force reducing portion that is capable of reducing an operation force applied to the fin due to a thermal expansion difference between the tubes, which are exposed to the exhaust gas.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: September 20, 2011
    Assignee: Denso Corporation
    Inventor: Masashi Miyagawa
  • Patent number: 7946112
    Abstract: An exhaust heat recovery device includes an accommodating portion extending continuously without shrinking a section therein and adapted to allow exhaust gas of an internal combustion engine to pass therethrough, a catalyst disposed in the accommodating portion for cleaning the exhaust gas, an evaporator disposed adjacent to the catalyst on a downstream side of an exhaust gas flow in the accommodating portion, and a condenser for condensing the working medium by radiating heat of the working medium flowing thereinto from the evaporator so as to recover exhaust heat on the coolant side. The condenser is located to return the condensed working medium to the evaporator.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: May 24, 2011
    Assignee: Denso Corporation
    Inventors: Masashi Miyagawa, Yasutoshi Yamanaka, Koichi Ban, Kimio Kohara