Patents by Inventor Jun Taguchi

Jun Taguchi 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: 11415078
    Abstract: In the present invention, a coal gasification combined power generation facility comprises: a feed water supply line (72); a condensate pump (39) and an intermediate-pressure feed water pump (40); a turbine bypass line (32) that bypasses a steam turbine and supplies steam to the condenser (73); and a spray water line (76) that supplies the feed water to the turbine bypass line (32). The coal gasification combined power generation facility has a normal operation mode and a bypass operation mode, and in the bypass operation mode, a control device (80) supplies the feed water to the turbine bypass line (32) and performs a first opening degree control to control the opening degree of the supply adjustment valve so that the amount of feed water supplied to the exhaust heat recovery boiler becomes less than that in the normal operation mode.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: August 16, 2022
    Assignee: MITSUBISHI POWER, LTD.
    Inventors: Tomoya Hayashi, Jun Taguchi, Satoru Matsuo, Kei Moriyama, Ken Tamura, Kentaro Nakamura, Yuji Ohta
  • Publication number: 20220142507
    Abstract: A heart failure diagnostic device includes a piezoelectric sensor sheet having flexibility and configured to output a detection signal corresponding to an input vibration. A respiratory signal acquisition unit is configured to extract, as a respiratory signal, a signal of a vibration frequency caused by respiration from the detection signal detected by the piezoelectric sensor sheet. A power spectrum calculator is configured to obtain a power spectrum of a respiratory frequency band from the respiratory signal, and a signal corrector is configured to correct the detection signal such that in the power spectrum, a maximum value of a first-order frequency component of a respiratory waveform is not smaller than 1.5 times a maximum value of a second-order frequency component of the respiratory waveform to obtain the respiratory signal.
    Type: Application
    Filed: January 26, 2022
    Publication date: May 12, 2022
    Inventors: Wataru TAKAHASHI, Masanori YAMAMOTO, Atsuki SHIMIZU, Mitsuyoshi KONDO, Jun Taguchi, Hidetsugu ASANOI, Yoshiki SAWA, Shigeru MIYAGAWA
  • Publication number: 20210285396
    Abstract: A coal gasification combined power generation facility includes a feed water supply line that supplies feed water condensed by a condenser to an exhaust heat recovery boiler; a supply adjustment valve that adjusts the flow amount of feed water supplied to the exhaust heat recovery boiler; a turbine bypass line that bypasses a steam turbine and supplies steam to the condenser; and a spray water line that supplies the feed water to the turbine bypass line. The coal gasification combined power generation facility has a bypass operation mode, wherein a control device supplies the feed water to the turbine bypass line and performs a first opening degree control to control the opening degree of the supply adjustment valve so that the amount of feed water supplied to the exhaust heat recovery boiler becomes less than that in a normal operation mode.
    Type: Application
    Filed: July 12, 2019
    Publication date: September 16, 2021
    Applicant: MITSUBISHI POWER, LTD.
    Inventors: Tomoya Hayashi, Jun Taguchi, Satoru Matsuo, Kei Moriyama, Ken Tamura, Kentaro Nakamura, Yuji Ohta
  • Patent number: 10577985
    Abstract: The purpose of the present invention is to maintain the intake pressure of a water supply pump at an operable pressure. A boiler is provided with: condensate pumps (a condensate pump and an auxiliary condensate pump); a branch line that causes water delivered by the condensate pumps to branch; a drum (a low-pressure drum) that is connected to one (a low-pressure branch line) of two lines into which the branch line branches; and a water supply pump that is connected to the other (a high-pressure branch line) of the two lines into which the branching line branches and that pumps water to an evaporator (a high-pressure evaporator). The boiler is additionally provided with pressure applying means that guides a portion of the water in the drum to the water supply pump side when the intake pressure on the inlet side of the water supply pump has become lower than a predetermined pressure.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: March 3, 2020
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventor: Jun Taguchi
  • Patent number: 10227900
    Abstract: The purpose of the present invention is to decrease the loss of energy of flue gas when superheated steam is cooled and prevent heat efficiency from being decreased. A boiler is provided with: economizers (a medium-pressure economizer (13) and a high-pressure secondary economizer (18)) which heat water supplied by water supply pumps (a medium-pressure water supply pump (27) and a high-pressure water supply pump (28)); evaporators (a medium-pressure evaporator (16) and a high-pressure evaporator (21)) which evaporate the water that is heated by the economizers; and cooling devices (a medium-pressure system and a high-pressure system) which mix water, as a coolant, which has passed through the economizers via the water supply pumps with steam.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: March 12, 2019
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventor: Jun Taguchi
  • Publication number: 20180202322
    Abstract: The purpose of the present invention is to maintain the intake pressure of a water supply pump at an operable pressure. A boiler is provided with: condensate pumps (a condensate pump and an auxiliary condensate pump); a branch line that causes water delivered by the condensate pumps to branch; a drum (a low-pressure drum) that is connected to one (a low-pressure branch line) of two lines into which the branch line branches; and a water supply pump that is connected to the other (a high-pressure branch line) of the two lines into which the branching line branches and that pumps water to an evaporator (a high-pressure evaporator). The boiler is additionally provided with pressure applying means that guides a portion of the water in the drum to the water supply pump side when the intake pressure on the inlet side of the water supply pump has become lower than a predetermined pressure.
    Type: Application
    Filed: September 2, 2015
    Publication date: July 19, 2018
    Inventor: Jun TAGUCHI
  • Patent number: 9867274
    Abstract: A circuit board includes a plate member capable of holding a printed circuit board, the printed circuit board including an electronic component, and a cooling member provided on the electronic component, the printed circuit board and the electronic component being positioned between the plate member and the cooling member; and a circuit provided to the plate member and allowed to be electrically connected with the printed circuit board.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: January 9, 2018
    Assignee: FUJITSU LIMITED
    Inventor: Jun Taguchi
  • Publication number: 20170211427
    Abstract: The purpose of the present invention is to decrease the loss of energy of flue gas when superheated steam is cooled and prevent heat efficiency from being decreased. A boiler is provided with: economizers (a medium-pressure economizer (13) and a high-pressure secondary economizer (18)) which heat water supplied by water supply pumps (a medium-pressure water supply pump (27) and a high-pressure water supply pump (28)); evaporators (a medium-pressure evaporator (16) and a high-pressure evaporator (21)) which evaporate the water that is heated by the economizers; and cooling devices (a medium-pressure system and a high-pressure system) which mix water, as a coolant, which has passed through the economizers via the water supply pumps with steam.
    Type: Application
    Filed: September 2, 2015
    Publication date: July 27, 2017
    Inventor: Jun TAGUCHI
  • Patent number: 9681591
    Abstract: A heat-receiving device includes: a first heat receiver into which a refrigerant flows, and that receives heat from a heat-generating part; and a second heat receiver into which the refrigerant discharged from the first heat receiver flows, and that receives heat from the heat-generating part or another heat-generating part; wherein the first heat receiver includes: a case; a flow path that includes first and second branch paths branch off from each other and are joined again, that is provided within the case, and through which the refrigerant flows; and a thermostat that is provided in the first branch path, and that reduces a flow rate of the refrigerant flowing through the first branch path as a temperature of the refrigerant flowing through the first branch path decreases.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: June 13, 2017
    Assignee: FUJITSU LIMITED
    Inventor: Jun Taguchi
  • Patent number: 9600039
    Abstract: An electronic device is described, which includes: a first cooling member having a first overlapping portion in which a first insertion hole is formed, and provided to be abutted on a first component to be cooled provided on a substrate; a second cooling member having a second overlapping portion in which a second insertion hole is formed, and provided to be abutted on a second component to be cooled provided on the substrate, the second overlapping portion overlapping the first overlapping portion; and a coupling member inserted through the first insertion hole and the second insertion hole to couple the first overlapping portion to the second overlapping portion through an elastic member.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: March 21, 2017
    Assignee: FUJITSU LIMITED
    Inventor: Jun Taguchi
  • Publication number: 20160353607
    Abstract: An electronic equipment includes a heat generating component, and a heat receiving device. The heat receiving device includes a case including a contacting surface which contacts the heat generating component, a flow passage, formed within the case, configured to flow a coolant flows, and an inflow port and an outflow port of the flow passage formed in an outer surface of the case. A distance from a spot having higher heat generation density than the other portions on a surface of the heat generating component which contacts the contacting surface to the inflow port is shorter than a distance from the spot to the outflow port.
    Type: Application
    Filed: August 12, 2016
    Publication date: December 1, 2016
    Applicant: FUJITSU LIMITED
    Inventor: Jun TAGUCHI
  • Patent number: 9468132
    Abstract: A heat-receiving device includes: a plurality of heat receivers into which a refrigerant flows; a series path that comprises a connection path connecting adjacent heat receivers among the plurality of heat receivers, that connects the plurality of heat receivers in series, and into which the refrigerant flows; a bypass path that is not connected to the plurality of heat receivers, and into which the refrigerant flows; a branch path that connects the connection path and the bypass path, and into which the refrigerant flows; and a throttle valve that is provided in the connection path on an upstream side with respect to a connection point of the connection path and the branch path, and that reduces a flow rate at which the refrigerant flows into the connection path as a temperature of the refrigerant flowing into the connection path decreases.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: October 11, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Jun Taguchi, Masaru Kase
  • Publication number: 20160050743
    Abstract: A circuit board includes a plate member capable of holding a printed circuit board, the printed circuit board including an electronic component, and a cooling member provided on the electronic component, the printed circuit board and the electronic component being positioned between the plate member and the cooling member; and a circuit provided to the plate member and allowed to be electrically connected with the printed circuit board.
    Type: Application
    Filed: July 21, 2015
    Publication date: February 18, 2016
    Applicant: FUJITSU LIMITED
    Inventor: Jun TAGUCHI
  • Publication number: 20150146376
    Abstract: A heat-receiving device includes: a first heat receiver into which a refrigerant flows, and that receives heat from a heat-generating part; and a second heat receiver into which the refrigerant discharged from the first heat receiver flows, and that receives heat from the heat-generating part or another heat-generating part; wherein the first heat receiver includes: a case; a flow path that includes first and second branch paths branch off from each other and are joined again, that is provided within the case, and through which the refrigerant flows; and a thermostat that is provided in the first branch path, and that reduces a flow rate of the refrigerant flowing through the first branch path as a temperature of the refrigerant flowing through the first branch path decreases.
    Type: Application
    Filed: February 2, 2015
    Publication date: May 28, 2015
    Applicant: FUJITSU LIMITED
    Inventor: JUN TAGUCHI
  • Publication number: 20150124406
    Abstract: A heat-receiving device includes: a plurality of heat receivers into which a refrigerant flows; a series path that comprises a connection path connecting adjacent heat receivers among the plurality of heat receivers, that connects the plurality of heat receivers in series, and into which the refrigerant flows; a bypass path that is not connected to the plurality of heat receivers, and into which the refrigerant flows; a branch path that connects the connection path and the bypass path, and into which the refrigerant flows; and a throttle valve that is provided in the connection path on an upstream side with respect to a connection point of the connection path and the branch path, and that reduces a flow rate at which the refrigerant flows into the connection path as a temperature of the refrigerant flowing into the connection path decreases.
    Type: Application
    Filed: January 15, 2015
    Publication date: May 7, 2015
    Applicant: FUJITSU LIMITED
    Inventors: Jun TAGUCHI, Masaru KASE
  • Publication number: 20150049430
    Abstract: An electronic device is described, which includes: a first cooling member having a first overlapping portion in which a first insertion hole is formed, and provided to be abutted on a first component to be cooled provided on a substrate; a second cooling member having a second overlapping portion in which a second insertion hole is formed, and provided to be abutted on a second component to be cooled provided on the substrate, the second overlapping portion overlapping the first overlapping portion; and a coupling member inserted through the first insertion hole and the second insertion hole to couple the first overlapping portion to the second overlapping portion through an elastic member.
    Type: Application
    Filed: August 11, 2014
    Publication date: February 19, 2015
    Applicant: Fujitsu Limited
    Inventor: Jun Taguchi
  • Publication number: 20140268561
    Abstract: An electronic equipment includes: a heat generating component; and a heat receiving device, wherein the heat receiving device includes: a case including a contacting surface which contacts the heat generating component; a flow passage, formed within the case, configured to flow a coolant flows, and an inflow port and an outflow port of the flow passage formed in an outer surface of the case, and a distance from a spot having higher heat generation density than the other portions on a surface of the heat generating component which contacts the contacting surface to the inflow port is shorter than a distance from the spot to the outflow port.
    Type: Application
    Filed: December 6, 2013
    Publication date: September 18, 2014
    Applicant: Fujitsu Limited
    Inventor: Jun TAGUCHI
  • Patent number: 7768731
    Abstract: A magnetic recording medium includes a first magnetic layer; and a second magnetic layer formed on the first magnetic layer. The first magnetic layer and the second magnetic layer make exchange coupling therebetween and also, have their magnetizing direction in anti-parallel to one another. A net residual area magnetization of the first magnetic layer and the second magnetic layer is expressed by the following formula: |Mr1×t1?Mr2×t2| where Mr1 and Mr2 denote respective residual magnetizations of the first magnetic layer and the second magnetic layer, and t1 and t2 denote respective film thicknesses of them; and the net area magnetization at a first temperature is larger than the net area magnetization at a second temperature lower than the first temperature.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: August 3, 2010
    Assignee: Showa Denko K.K.
    Inventors: Akihiro Inomata, Antony Ajan, Jun Taguchi, Koji Matsumoto, Wataru Yamagishi
  • Patent number: 7665102
    Abstract: A heat-assisted magnetic recording method is provided for implementing information recording on a recording magnetic film of a magnetic recording medium rotated around a rotation center. The method includes the steps of: illuminating a recording region in the magnetic film with a laser beam for locally heating the recording region; and applying a recording magnetic field to the heated recording region. The power of the laser beam illuminating the recording region is selected in accordance with the distance between the rotation center and the recording region.
    Type: Grant
    Filed: September 1, 2005
    Date of Patent: February 16, 2010
    Assignee: Fujitsu Limited
    Inventors: Jun Taguchi, Koji Matsumoto
  • Publication number: 20090324973
    Abstract: A magnetic recording medium includes a substrate and a layer stack unit that has n (n being 3 or an integer greater than 3) magnetic recording layers, and (n?1) exchange coupling control layers placed in respective spaces between the n magnetic recording layers, the n magnetic recording layers and the (n?1) exchange coupling control layers being stacked on the substrate.
    Type: Application
    Filed: April 3, 2009
    Publication date: December 31, 2009
    Applicant: FUJITSU LIMITED
    Inventor: Jun Taguchi