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).
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Patent number: 11146096Abstract: 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: GrantFiled: March 25, 2016Date of Patent: October 12, 2021Assignee: KYOCERA CORPORATIONInventors: Hirokazu Inoue, Masahiro Baba
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Patent number: 10591073Abstract: 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: GrantFiled: December 14, 2015Date of Patent: March 17, 2020Assignee: YAMADA MANUFACTURING CO., LTD.Inventors: Yu Wang, Xiaofeng Dong, Hirokazu Inoue
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Patent number: 10243367Abstract: 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 thType: GrantFiled: May 19, 2015Date of Patent: March 26, 2019Assignee: KYOCERA CorporationInventor: Hirokazu Inoue
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Publication number: 20180335156Abstract: 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: ApplicationFiled: December 14, 2015Publication date: November 22, 2018Inventors: Yu Wang, Xiaofeng Dong, Hirokazu Inoue
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Publication number: 20180123508Abstract: 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: ApplicationFiled: March 25, 2016Publication date: May 3, 2018Applicant: KYOCERA CORPORATIONInventors: Hirokazu INOUE, Masahiro BABA
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Publication number: 20170093162Abstract: 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 thType: ApplicationFiled: May 19, 2015Publication date: March 30, 2017Inventor: Hirokazu INOUE
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Patent number: 9305484Abstract: 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: GrantFiled: December 2, 2014Date of Patent: April 5, 2016Assignee: HITACHI MAXELL, LTD.Inventors: Yuji Sano, Akihiro Takagi, Tomokatsu Kishi, Toyoshi Kawada, Hirokazu Inoue
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Patent number: 9252682Abstract: 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: GrantFiled: June 28, 2012Date of Patent: February 2, 2016Assignee: KYOCERA CorporationInventor: Hirokazu Inoue
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Publication number: 20150084844Abstract: 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: ApplicationFiled: December 2, 2014Publication date: March 26, 2015Applicant: HITACHI MAXELL, LTD.Inventors: Yuji Sano, Akihiro Takagi, Tomokatsu Kishi, Toyoshi Kawada, Hirokazu Inoue
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Patent number: 8928646Abstract: 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: GrantFiled: December 14, 2011Date of Patent: January 6, 2015Assignee: Hitachi Maxell, Ltd.Inventors: Yuji Sano, Akihiro Takagi, Tomokatsu Kishi, Toyoshi Kawada, Hirokazu Inoue
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Patent number: 8781365Abstract: 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: GrantFiled: November 30, 2010Date of Patent: July 15, 2014Assignee: Murata Machinery, Ltd.Inventor: Hirokazu Inoue
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Patent number: 8763634Abstract: 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: GrantFiled: July 10, 2012Date of Patent: July 1, 2014Assignees: 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
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Publication number: 20140126259Abstract: 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: ApplicationFiled: June 28, 2012Publication date: May 8, 2014Applicant: KYOCERA CORPORATIONInventor: Hirokazu Inoue
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Patent number: 8382918Abstract: 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: GrantFiled: June 29, 2011Date of Patent: February 26, 2013Assignee: Kobe Steel, Ltd.Inventors: Nao Yoshihara, Fujio Koizumi, Hirokazu Inoue, Katsuya Takaoka, Shoji Miyazaki, Sayaka Nagamatsu
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Publication number: 20130014838Abstract: 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: ApplicationFiled: July 10, 2012Publication date: January 17, 2013Applicants: 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
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Publication number: 20120081350Abstract: 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: ApplicationFiled: December 14, 2011Publication date: April 5, 2012Applicant: FUJITSU HITACHI PLASMA DISPLAY LIMITEDInventors: Yuji SANO, Akihiro Takagi, Tomokatsu Kishi, Toyoshi Kawada, Hirokazu Inoue
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Publication number: 20110303327Abstract: 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: ApplicationFiled: June 29, 2011Publication date: December 15, 2011Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Nao YOSHIHARA, Fujio Koizumi, Hirokazu Inoue, Katsuya Takaoka, Shoji Miyazaki, Sayaka Nagamatsu
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Publication number: 20110148034Abstract: 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: ApplicationFiled: November 30, 2010Publication date: June 23, 2011Applicant: MURATA MACHINERY, LTD.Inventor: Hirokazu INOUE
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Patent number: 7928587Abstract: 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: GrantFiled: April 18, 2008Date of Patent: April 19, 2011Assignee: Hitachi, Ltd.Inventors: Akihiro Tamba, Kazuhiro Suzuki, Koji Sasaki, Shinji Hiramitsu, Hirokazu Inoue
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Patent number: 7737641Abstract: 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: GrantFiled: February 10, 2006Date of Patent: June 15, 2010Assignee: Fujitsu Hitachi Plasma Display LimitedInventors: Yuji Sano, Akihiro Takagi, Tomokatsu Kishi, Toyoshi Kawada, Hirokazu Inoue