Patents by Inventor Hirokazu Inoue

Hirokazu Inoue 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: 11146096
    Abstract: The disclosure reduces the occurrence of an inrush current upon electrical connection of a storage cell, allowing immediate use. A power supply apparatus is configured to convert DC power from a solar cell and a storage cell into AC power and includes: a first capacitor disposed between the solar cell and the storage cell; and a controller configured to charge the first capacitor with power from the solar cell or a power grid and, after a first voltage of the first capacitor exceeds a second voltage of the storage cell, to electrically connect the storage cell with the first capacitor.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: October 12, 2021
    Assignee: KYOCERA CORPORATION
    Inventors: Hirokazu Inoue, Masahiro Baba
  • Patent number: 10591073
    Abstract: A relief valve structure (20) attached to a pump body (10) includes: a first discharge portion (31) for discharging oil when a discharge pressure is a first predetermined pressure; a second discharge portion (32) for discharging the oil when the discharge pressure reaches a second predetermined pressure higher than the first predetermined pressure; a third discharge portion (33) for discharging the oil when the discharge pressure exceeds the first predetermined pressure and reaches the second predetermined pressure or a pressure lower than the second predetermined pressure; and a pressure relief hole (34) for releasing the oil from an area around a valve spring (23). The second discharge portion, the first discharge portion, the third discharge portion, and the pressure release hole are provided in this order between an introduction portion (29) and a spring retaining member (24) when viewed from the introduction portion (29).
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: March 17, 2020
    Assignee: YAMADA MANUFACTURING CO., LTD.
    Inventors: Yu Wang, Xiaofeng Dong, Hirokazu Inoue
  • Patent number: 10243367
    Abstract: In order to build a system capable of managing efficient operation control between a plurality of distributed power sources without compromising versatility of a distributed power source side, a power supply system of the disclosure herein is a power supply system having a plurality of distributed power sources including a battery and a power generation apparatus configured to generate power while forward power flow is detected, the power supply system including an interconnection operation switch to be closed during an interconnection operation such that an output from a grid is supplied to a load, a first current sensor disposed between the interconnection operation switch and the load, and configured to detect the forward power flow, a first supply path changeover switch capable of closing such that an output from the power generation apparatus is supplied to the load without passing through the first current sensor, and a second supply path changeover switch capable of closing such that the output from th
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: March 26, 2019
    Assignee: KYOCERA Corporation
    Inventor: Hirokazu Inoue
  • Publication number: 20180335156
    Abstract: A relief valve structure (20) attached to a pump body (10) includes: a first discharge portion (31) for discharging oil when a discharge pressure is a first predetermined pressure; a second discharge portion (32) for discharging the oil when the discharge pressure reaches a second predetermined pressure higher than the first predetermined pressure; a third discharge portion (33) for discharging the oil when the discharge pressure exceeds the first predetermined pressure and reaches the second predetermined pressure or a pressure lower than the second predetermined pressure; and a pressure relief hole (34) for releasing the oil from an area around a valve spring (23). The second discharge portion, the first discharge portion, the third discharge portion, and the pressure release hole are provided in this order between an introduction portion (29) and a spring retaining member (24) when viewed from the introduction portion (29).
    Type: Application
    Filed: December 14, 2015
    Publication date: November 22, 2018
    Inventors: Yu Wang, Xiaofeng Dong, Hirokazu Inoue
  • Publication number: 20180123508
    Abstract: The disclosure reduces the occurrence of an inrush current upon electrical connection of a storage cell, allowing immediate use. A power supply apparatus is configured to convert DC power from a solar cell and a storage cell into AC power and includes: a first capacitor disposed between the solar cell and the storage cell; and a controller configured to charge the first capacitor with power from the solar cell or a power grid and, after a first voltage of the first capacitor exceeds a second voltage of the storage cell, to electrically connect the storage cell with the first capacitor.
    Type: Application
    Filed: March 25, 2016
    Publication date: May 3, 2018
    Applicant: KYOCERA CORPORATION
    Inventors: Hirokazu INOUE, Masahiro BABA
  • Publication number: 20170093162
    Abstract: In order to build a system capable of managing efficient operation control between a plurality of distributed power sources without compromising versatility of a distributed power source side, a power supply system of the disclosure herein is a power supply system having a plurality of distributed power sources including a battery and a power generation apparatus configured to generate power while forward power flow is detected, the power supply system including an interconnection operation switch to be closed during an interconnection operation such that an output from a grid is supplied to a load, a first current sensor disposed between the interconnection operation switch and the load, and configured to detect the forward power flow, a first supply path changeover switch capable of closing such that an output from the power generation apparatus is supplied to the load without passing through the first current sensor, and a second supply path changeover switch capable of closing such that the output from th
    Type: Application
    Filed: May 19, 2015
    Publication date: March 30, 2017
    Inventor: Hirokazu INOUE
  • Patent number: 9305484
    Abstract: A plasma display apparatus including a capacitive load and a driving circuit is provided. The plasma display apparatus includes a driving power source supplying a drive voltage to the capacitive load and a reference potential terminal supplying a reference potential to the capacitive load. A drive IC is coupled to the driving power source.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: April 5, 2016
    Assignee: HITACHI MAXELL, LTD.
    Inventors: Yuji Sano, Akihiro Takagi, Tomokatsu Kishi, Toyoshi Kawada, Hirokazu Inoue
  • Patent number: 9252682
    Abstract: A grid-connected inverter apparatus includes: an inverter 50 for converting a DC output based on power generated from a power generation equipment 100 into an AC; a DC voltage measuring unit 40 for measuring a DC voltage on a DC input side of the inverter 50; a grid interconnection switch 70 having two independent relay switches 71, 72 each corresponding to phases of a grid power system 110 to which the inverter 50 is connected; and a control unit 90 for controlling the two relay switches 71, 72, such that the control unit 90, after opening the two relay switches 71, 72, changes the relay switch 71 such that the opening control is changes to closing control and, based on a change in the DC voltage measured by the DC voltage measuring unit 40 before and after the changing control, determines whether the relay switch 72 is faulty.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: February 2, 2016
    Assignee: KYOCERA Corporation
    Inventor: Hirokazu Inoue
  • Publication number: 20150084844
    Abstract: A plasma display apparatus including a capacitive load and a driving circuit is provided. The plasma display apparatus includes a driving power source supplying a drive voltage to the capacitive load and a reference potential terminal supplying a reference potential to the capacitive load. A drive IC is coupled to the driving power source.
    Type: Application
    Filed: December 2, 2014
    Publication date: March 26, 2015
    Applicant: HITACHI MAXELL, LTD.
    Inventors: Yuji Sano, Akihiro Takagi, Tomokatsu Kishi, Toyoshi Kawada, Hirokazu Inoue
  • Patent number: 8928646
    Abstract: A plasma display apparatus including a capacitive load and a driving circuit is provided. The plasma display apparatus includes a driving power source supplying a drive voltage to the capacitive load and a reference potential terminal supplying a reference potential to the capacitive load. A drive IC is coupled to the driving power source.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: January 6, 2015
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Yuji Sano, Akihiro Takagi, Tomokatsu Kishi, Toyoshi Kawada, Hirokazu Inoue
  • Patent number: 8781365
    Abstract: An automatic document transportation device includes an ADF main body, a first lock pin and a second lock pin, a cover, a first lock lever and a second lock lever, and an unlock portion. The first lock pin and the second lock pin are arranged in the ADF main body. The cover is supported in an openable/closable manner at the ADF main body. The first lock lever and the second lock lever lock the cover so as not to open by being hooked at the first lock pin and the second lock pin when the cover is closed. The unlock portion is arranged on the surface on the ADF main body side of the cover and in the vicinity of the end of the distal end side of the cover, and can unlock the lock of the first lock lever and the second lock lever.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: July 15, 2014
    Assignee: Murata Machinery, Ltd.
    Inventor: Hirokazu Inoue
  • Patent number: 8763634
    Abstract: A relief device includes a relief housing constituted by a relief inflow portion, a valve passage portion, a recess, and an oil discharge portion having a relief hole; a relief valve having a small-diameter portion between a first large-diameter portion and a second large-diameter portion; and a spring elastically biasing the relief valve toward the relief inflow portion. The recess is formed at a position that is closer to the relief inflow portion side than to the oil discharge portion, the axial length of the recess is larger than the axial length of the first large-diameter portion of the relief valve, and the shortest axial distance between the recess and the relief hole is less than the axial length of the small-diameter portion.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: July 1, 2014
    Assignees: Honda Motor Co., Ltd., Yamada Manufacturing Co., Ltd.
    Inventors: Nobuyuki Akaishi, Masataka Ikawa, Yasuhiro Ueta, Takuji Ishioka, Hidehiko Kamiyama, Takuya Yamazaki, Yoshiro Umezawa, Hirokazu Inoue, Yoshitaka Kurokawa
  • Publication number: 20140126259
    Abstract: A grid-connected inverter apparatus includes: an inverter 50 for converting a DC output based on power generated from a power generation equipment 100 into an AC; a DC voltage measuring unit 40 for measuring a DC voltage on a DC input side of the inverter 50; a grid interconnection switch 70 having two independent relay switches 71, 72 each corresponding to phases of a grid power system 110 to which the inverter 50 is connected; and a control unit 90 for controlling the two relay switches 71, 72, such that the control unit 90, after opening the two relay switches 71, 72, changes the relay switch 71 such that the opening control is changes to closing control and, based on a change in the DC voltage measured by the DC voltage measuring unit 40 before and after the changing control, determines whether the relay switch 72 is faulty.
    Type: Application
    Filed: June 28, 2012
    Publication date: May 8, 2014
    Applicant: KYOCERA CORPORATION
    Inventor: Hirokazu Inoue
  • Patent number: 8382918
    Abstract: The steel wire material for a spring of the invention contains; C: 0.37-0.54%, Si: 1.7-2.30%, Mn: 0.1-1.30%, Cr: 0.15-1.1%, Cu: 0.15-0.6%, Ti: 0.010-0.1%, Al: 0.003-0.05%, and the balance including iron with inevitable impurities, wherein ferrite decarburized layer depth is 0.01 mm or less, whole decarburized layer depth is 0.20 mm or less, and fracture reduction of area is 25% or more. It alternately may contain; C: 0.38-0.47%, Si: 1.9-2.5%, Mn: 0.6-1.3%, Ti: 0.05-0.15%, Al: 0.003-0.1%, and the balance including iron with inevitable impurities, wherein ferrite decarburized layer depth is 0.01 mm or less.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: February 26, 2013
    Assignee: Kobe Steel, Ltd.
    Inventors: Nao Yoshihara, Fujio Koizumi, Hirokazu Inoue, Katsuya Takaoka, Shoji Miyazaki, Sayaka Nagamatsu
  • Publication number: 20130014838
    Abstract: A relief device includes a relief housing constituted by a relief inflow portion, a valve passage portion, a recess, and an oil discharge portion having a relief hole; a relief valve having a small-diameter portion between a first large-diameter portion and a second large-diameter portion; and a spring elastically biasing the relief valve toward the relief inflow portion. The recess is formed at a position that is closer to the relief inflow portion side than to the oil discharge portion, the axial length of the recess is larger than the axial length of the first large-diameter portion of the relief valve, and the shortest axial distance between the recess and the relief hole is less than the axial length of the small-diameter portion.
    Type: Application
    Filed: July 10, 2012
    Publication date: January 17, 2013
    Applicants: Yamada Manufacturing Co., Ltd., Honda Motor Co., Ltd.
    Inventors: Nobuyuki AKAISHI, Masataka Ikawa, Yasuhiro Ueta, Takuji Ishioka, Hidehiko Kamiyama, Takuya Yamazaki, Yoshiro Umezawa, Hirokazu Inoue, Yoshitaka Kurokawa
  • Publication number: 20120081350
    Abstract: A plasma display apparatus including a capacitive load and a driving circuit is provided. The plasma display apparatus includes a driving power source supplying a drive voltage to the capacitive load and a reference potential terminal supplying a reference potential to the capacitive load. A drive IC is coupled to the driving power source.
    Type: Application
    Filed: December 14, 2011
    Publication date: April 5, 2012
    Applicant: FUJITSU HITACHI PLASMA DISPLAY LIMITED
    Inventors: Yuji SANO, Akihiro Takagi, Tomokatsu Kishi, Toyoshi Kawada, Hirokazu Inoue
  • Publication number: 20110303327
    Abstract: The steel wire material for a spring of the invention contains; C: 0.37-0.54%, Si: 1.7-2.30%, Mn: 0.1-1.30%, Cr: 0.15-1.1%, Cu: 0.15-0.6%, Ti: 0.010-0.1%, Al: 0.003-0.05%, and the balance including iron with inevitable impurities, wherein ferrite decarburized layer depth is 0.01 mm or less, whole decarburized layer depth is 0.20 mm or less, and fracture reduction of area is 25% or more. It alternately may contain; C: 0.38-0.47%, Si: 1.9-2.5%, Mn: 0.6-1.3%, Ti: 0.05-0.15%, Al: 0.003-0.1%, and the balance including iron with inevitable impurities, wherein ferrite decarburized layer depth is 0.01 mm or less, Ceq1 in the equation (1) below is 0.580 or more, Ceq2 in the equation (2) below is 0.49 or less, and Ceq3 in the equation (3) below is 0.570 or less. Ceq1=[C]+0.11[Si]?0.07[Mn]?0.05[Ni]+0.02[Cr]??(1) Ceq2=[C]+0.30[Cr]?0.15[Ni]?0.70[Cu]??(2) Ceq3=[C]?0.04[Si]+0.24[Mn]+0.10[Ni]+0.20[Cr]?0.89[Ti]?1.92[Nb]??(3) (In the above equations, [ ] shows the content (mass %) of each element in steel.
    Type: Application
    Filed: June 29, 2011
    Publication date: December 15, 2011
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Nao YOSHIHARA, Fujio Koizumi, Hirokazu Inoue, Katsuya Takaoka, Shoji Miyazaki, Sayaka Nagamatsu
  • Publication number: 20110148034
    Abstract: An automatic document transportation device includes an ADF main body, a first lock pin and a second lock pin, a cover, a first lock lever and a second lock lever, and an unlock portion. The first lock pin and the second lock pin are arranged in the ADF main body. The cover is supported in an openable/closable manner at the ADF main body. The first lock lever and the second lock lever lock the cover so as not to open by being hooked at the first lock pin and the second lock pin when the cover is closed. The unlock portion is arranged on the surface on the ADF main body side of the cover and in the vicinity of the end of the distal end side of the cover, and can unlock the lock of the first lock lever and the second lock lever.
    Type: Application
    Filed: November 30, 2010
    Publication date: June 23, 2011
    Applicant: MURATA MACHINERY, LTD.
    Inventor: Hirokazu INOUE
  • Patent number: 7928587
    Abstract: A power semiconductor module having a surface of the power semiconductor chip and an external circuit pattern connected by an aluminum wire, and sealed with an epoxy resin, wherein wire diameter of the aluminum wire is 0.4±0.05 mm?, and coefficient of linear expansion of the epoxy resin in a rated temperature range of a module is from 15 to 20 ppm/K.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: April 19, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Akihiro Tamba, Kazuhiro Suzuki, Koji Sasaki, Shinji Hiramitsu, Hirokazu Inoue
  • Patent number: 7737641
    Abstract: A capacitive-load driving circuit has a configuration in which a driving power supply source is connected to an output terminal via a driving device. The capacitive-load driving circuit has a power distributing circuit inserted between the driving power supply source and the driving device. Therefore, temperature rise (power consumption) in the capacitive-load driving circuit can be distributed.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: June 15, 2010
    Assignee: Fujitsu Hitachi Plasma Display Limited
    Inventors: Yuji Sano, Akihiro Takagi, Tomokatsu Kishi, Toyoshi Kawada, Hirokazu Inoue