Patents by Inventor Hirofumi Takahashi
Hirofumi Takahashi 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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Publication number: 20160097139Abstract: Provided is a method for manufacturing high purity tin including: depositing electrodeposited tin on the surface of a cathode 11 by electrowinning in an electrolytic bath in which a diaphragm 14 is placed between an anode 12 and the cathode 11, by using a raw material for tin as the anode 12 and a leachate obtained by electrolytically leaching the raw material for tin in a sulfuric acid solution as an electrolytic solution, the electrolytic solution containing a smoothing agent for improving a surface property of the electrodeposited tin; discharging the electrolytic solution from the electrolytic bath such that lead in the discharged electrolytic solution is removed; and putting the electrolytic solution from which lead is removed back into the electrolytic bath.Type: ApplicationFiled: October 1, 2015Publication date: April 7, 2016Inventors: Kouichi Takemoto, Toru Imori, Takashi Ouchi, Hirofumi Takahashi
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Publication number: 20160064779Abstract: It is provided a computer system, comprising a plurality of computers configured to execute processing in response to requests received from a plurality of external systems. The plurality of computers share an acceptance weight statistic value calculated by each of the plurality of computers with another computer within the same network segment. The processor of each of the plurality of computers is configured to: receive a broadcast transmitted from one of the plurality of external systems to the same network segment; determine whether to respond to the received broadcast by referring to the shared acceptance weight statistic value; and send a response to the one of the plurality of external systems that has transmitted the broadcast in order to allow the one of the plurality of external systems to transmit a processing request in a case where it is determined to respond to the received broadcast.Type: ApplicationFiled: July 30, 2015Publication date: March 3, 2016Applicant: HITACHI, LTD.Inventors: Hirofumi TAKAHASHI, Atsuhiko ONUMA
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Patent number: 9272921Abstract: Disclosed are a method of producing fine particulate alkali metal niobate in a liquid phase system, wherein the size and shape of the particulate alkali metal niobate can be controlled; and fine particulate alkali metal niobate having a controlled shape and size. One of specifically disclosed is a method of producing a substantially rectangular cuboid particulate alkali metal niobate represented by MNbO3 (1), wherein M represents one element selected from alkaline metals, including specific four steps. Another one of specifically disclosed is particulate alkali metal niobate represented by the formula (1) having a substantially rectangular cuboid shape, wherein the substantially rectangular cuboid shape has a longest side and a shortest side, the length of the longest side represented by an index Lmax is 0.10 to 25 ?m, and the length of the shortest side represented by an index Lmin is 0.050 to 15 ?m.Type: GrantFiled: February 27, 2014Date of Patent: March 1, 2016Assignees: Sakai Chemical Industry Co., Ltd., TOHOKU University, Fuji Ceramics CorporationInventors: Atsushi Muramatsu, Kiyoshi Kanie, Atsuki Terabe, Yasuhiro Okamoto, Hideto Mizutani, Satoru Sueda, Hirofumi Takahashi
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Publication number: 20150318717Abstract: Provided are: an electric storage device having improved reliability in charging a storage battery; and a charging method. This electric storage device is provided with: an SOC calculation section which calculates a charge rate when a battery voltage reached a predetermined value, in the cases where the battery voltage reached the predetermined value when a lithium ion storage battery is being charged; a voltage difference calculation section, which calculates a battery voltage difference corresponding to a difference between the charge rate and a charge rate at which lithium is deposited; a charge complete voltage calculation means, which calculates a charge complete voltage by adding the voltage difference to the battery voltage obtained when the battery voltage reached the predetermined value; and a charge control means, which completes the charging of the lithium ion storage battery in the cases where the battery voltage reached the charge complete voltage.Type: ApplicationFiled: December 14, 2012Publication date: November 5, 2015Inventors: Shin YAMAUCHI, Kohei HONKURA, Hirofumi TAKAHASHI, Takashi KAMIJOH, Mitsuhiro KISHIMI
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Publication number: 20150270583Abstract: A nonaqueous secondary battery includes an ion supply unit which supplies ions identical to ions in an electrolyte into the electrolyte at a reaction potential higher than the uncharged potential of a positive electrode. The ion supply unit includes an ion supply source which elutes the ions into the electrolyte by being in contact with the electrolyte in a state of being electrically connected to the positive electrode, and a first covering portion which covers at least a part of the ion supply source. Then, the first covering portion maintains the ion supply source and the positive electrode in an electrically disconnected state by being interposed between the ion supply source and the positive electrode, and is dissolved or disappears at the reaction potential.Type: ApplicationFiled: September 12, 2012Publication date: September 24, 2015Applicant: Hitachi, Ltd.Inventors: Hirofumi Takahashi, Kan Kitagawa
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Patent number: 9077043Abstract: The present invention is a secondary battery, including: an electrode group that includes a positive electrode and a negative electrode, an electrolyte, and a battery cell container that contains the electrode group and the electrolyte and that is sealed, wherein: an adhesive layer for trapping foreign matter present inside the battery cell container is disposed in the battery cell container by exposing at least part of the adhesive layer so as to allow the adhesive layer to come into contact with the electrolyte.Type: GrantFiled: July 20, 2011Date of Patent: July 7, 2015Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Yuichi Takatsuka, Katsunori Suzuki, Sho Matsumoto, Kenji Nakai, Tatsuhiko Kawasaki, Hirofumi Takahashi, Yoshio Onodera
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Patent number: 8920924Abstract: Disclosed are a method of producing fine particulate alkali metal niobate in a liquid phase system, wherein the size and shape of particles of the fine particulate alkali metal niobate can be controlled; and fine particulate alkali metal niobate having a controlled shape and size. Specifically disclosed are a method of producing particulate sodium-potassium niobate represented by the formula (1): NaxK(1-x)NbO3 (1), the method including four specific steps, wherein a high-concentration alkaline solution containing Na+ ion and K+ ion is used as an alkaline solution; and particulate sodium-potassium niobate having a controlled shape and size.Type: GrantFiled: April 5, 2010Date of Patent: December 30, 2014Assignees: Sakai Chemical Industry Co., Ltd., TOHOKU University, Fuji Ceramics CorporationInventors: Atsushi Muramatsu, Kiyoshi Kanie, Atsuki Terabe, Yasuhiro Okamoto, Hideto Mizutani, Satoru Sueda, Hirofumi Takahashi
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Publication number: 20140315024Abstract: Disclosed are a method of producing fine particulate alkali metal niobate in a liquid phase system, wherein the size and shape of the particulate alkali metal niobate can be controlled; and fine particulate alkali metal niobate having a controlled shape and size. One of specifically disclosed is a method of producing a substantially rectangular cuboid particulate alkali metal niobate represented by MNbO3 (1), wherein M represents one element selected from alkaline metals, including specific four steps. Another one of specifically disclosed is particulate alkali metal niobate represented by the formula (1) having a substantially rectangular cuboid shape, wherein the substantially rectangular cuboid shape has a longest side and a shortest side, the length of the longest side represented by an index Lmax is 0.10 to 25 ?m, and the length of the shortest side represented by an index Lmin is 0.050 to 15 ?m.Type: ApplicationFiled: February 27, 2014Publication date: October 23, 2014Applicants: Sakai Chemical Industry Co., Ltd., Fuji Ceramics Corporation, TOHOKU UniversityInventors: Atsushi MURAMATSU, Kiyoshi KANIE, Atsuki TERABE, Yasuhiro OKAMOTO, Hideto MIZUTANI, Satoru SUEDA, Hirofumi TAKAHASHI
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Patent number: 8771618Abstract: Disclosed are a method of producing fine particulate alkali metal niobate in a liquid phase system, wherein the size and shape of the particulate alkali metal niobate can be controlled; and fine particulate alkali metal niobate having a controlled shape and size. One of specifically disclosed is a method of producing a substantially rectangular cuboid particulate alkali metal niobate represented by MNbO3 (1), wherein M represents one element selected from alkaline metals, including specific four steps. Another one of specifically disclosed is particulate alkali metal niobate represented by the formula (1) having a substantially rectangular cuboid shape, wherein the substantially rectangular cuboid shape has a longest side and a shortest side, the length of the longest side represented by an index Lmax is 0.10 to 25 ?m, and the length of the shortest side represented by an index Lmin is 0.050 to 15 ?m.Type: GrantFiled: April 5, 2010Date of Patent: July 8, 2014Assignees: Sakai Chemical Industry Co., Ltd., TOHOKU University, Fuji Ceramics CorporationInventors: Atsushi Muramatsu, Kiyoshi Kanie, Atsuki Terabe, Yasuhiro Okamoto, Hideto Mizutani, Satoru Sueda, Hirofumi Takahashi
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Publication number: 20140158546Abstract: An electrolytic copper plating solution for filling for forming microwiring for ULSI, is characterized in that it has a pH of from 1.8 to 3.0. The electrolytic copper plating solution preferably contains a saturated carboxylic acid having from 1 to 4 carbon atoms at a concentration from 0.01 to 2.0 mol/L.Type: ApplicationFiled: December 10, 2013Publication date: June 12, 2014Inventors: Junnosuke SEKIGUCHI, Hirofumi TAKAHASHI, Akihiro AIBA
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Publication number: 20140103246Abstract: Disclosed are a method of producing fine particulate alkali metal niobate in a liquid phase system, wherein the size and shape of particles of the fine particulate alkali metal niobate can be controlled; and fine particulate alkali metal niobate having a controlled shape and size. Specifically disclosed are a method of producing particulate sodium-potassium niobate represented by the formula (1): NaxK(1-x)NbO3 (1), the method including four specific steps, wherein a high-concentration alkaline solution containing Na+ ion and K+ ion is used as an alkaline solution; and particulate sodium-potassium niobate having a controlled shape and size.Type: ApplicationFiled: December 19, 2013Publication date: April 17, 2014Applicants: Sakai Chemical Industry Co., Ltd., Fuji Ceramics Corporation, TOHOKU UniversityInventors: Atsushi MURAMATSU, Kiyoshi KANIE, Atsuki TERABE, Yasuhiro OKAMOTO, Hideto MIZUTANI, Satoru SUEDA, Hirofumi TAKAHASHI
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Publication number: 20130295447Abstract: Disclosed herein is a highly reliable secondary battery with organic electrolytic solution. The secondary battery has a set of plates for the positive and negative electrodes, with a separator interposed between them, and an organic electrolytic solution composed of an organic solvent and an electrolyte dissolved therein. The organic electrolytic solution contains polyethylene glycol and bis-3-sulfopropyl-sulfide-2-sodium.Type: ApplicationFiled: November 18, 2010Publication date: November 7, 2013Applicant: Hitachi Vehicle Energy, Ltd.Inventors: Kenji Hara, Tatsuhiko Kawasaki, Hirofumi Takahashi
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Patent number: 8216438Abstract: Provided is a copper anode or a phosphorous-containing copper anode for use in performing electroplating copper on a semiconductor wafer, wherein purity of the copper anode or the phosphorous-containing copper anode excluding phosphorous is 99.99 wt % or higher, and silicon as an impurity is 10 wtppm or less. Additionally provided is an electroplating copper method capable of effectively preventing the adhesion of particles on a plating object, particularly onto a semiconductor wafer during electroplating copper, a phosphorous-containing copper anode for use in such electroplating copper, and a semiconductor wafer comprising a copper layer with low particle adhesion formed by the foregoing copper electroplating.Type: GrantFiled: October 6, 2008Date of Patent: July 10, 2012Assignee: JX Nippon Mining & Metals CorporationInventors: Akihiro Aiba, Hirofumi Takahashi
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Publication number: 20120103820Abstract: An object of the present invention is to provide an electrolytic copper plating solution which can suppress, upon electrolytic copper plating on a copper seed layer during fabrication of ULSI copper microwiring (damascene copper wiring) having trends to further miniaturization, dissolution of the copper seed layer and accordingly can suppress occurrence of voids on the inner wall of vias/trenches. The present invention provides an electrolytic copper plating solution for filling for forming microwiring for ULSI, characterized in that it has a pH of 1.8 or higher and 3.0 or lower. The electrolytic copper plating solution preferably comprises a saturated carboxylic acid having 1 or more and 4 or less carbon atoms at 0.01 mol/L or more and 2.0 mol/L or less.Type: ApplicationFiled: June 22, 2010Publication date: May 3, 2012Inventors: Junnosuke Sekiguchi, Hirofumi Takahashi, Akihiro Aiba
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Publication number: 20120094126Abstract: Disclosed are a method of producing fine particulate alkali metal niobate in a liquid phase system, wherein the size and shape of particles of the fine particulate alkali metal niobate can be controlled; and fine particulate alkali metal niobate having a controlled shape and size. Specifically disclosed are a method of producing particulate sodium-potassium niobate represented by the formula (1): NaxK(1-x)NbO3 (1), the method including four specific steps, wherein a high-concentration alkaline solution containing Na+ ion and K+ ion is used as an alkaline solution; and particulate sodium-potassium niobate having a controlled shape and size.Type: ApplicationFiled: April 5, 2010Publication date: April 19, 2012Applicants: SAKAI CHEMICAL INDUSTRY CO., LTD., FUJI CERAMICS CORPORATION, TOHOKU UNIVERSITYInventors: Atsushi Muramatsu, Kiyoshi Kanie, Atsuki Terabe, Yasuhiro Okamoto, Hideto Mizutani, Satoru Sueda, Hirofumi Takahashi
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Publication number: 20120062238Abstract: A battery controller for controlling an assembled battery configured by connecting battery groups each including battery cells, includes: voltage measuring units that are provided respectively for the battery groups each to measure a voltage of each of the battery cells included in a corresponding battery group; a minimum value detecting unit that detects a minimum value of the battery cells for each of the battery groups based upon the measured voltage of each of the battery cells; a reference value setting unit that sets a reference value used to determine an abnormal voltage drop for each of the battery groups based upon the measured voltage of each of the battery cells; and an abnormality determining unit that makes a determination that an abnormal voltage drop is present, if a difference between the reference value and the minimum value exceeds a predetermined value, for each of the battery groups.Type: ApplicationFiled: August 19, 2011Publication date: March 15, 2012Applicant: Hitachi Vehicle Energy, Ltd.Inventors: Tatsuhiko Kawasaki, Kenji Hara, Toshiyuki Nanto, Hirofumi Takahashi
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Publication number: 20120064344Abstract: Disclosed are a method of producing fine particulate alkali metal niobate in a liquid phase system, wherein the size and shape of the particulate alkali metal niobate can be controlled; and fine particulate alkali metal niobate having a controlled shape and size. One of specifically disclosed is a method of producing a substantially rectangular cuboid particulate alkali metal niobate represented by MNbO3 (1), wherein M represents one element selected from alkaline metals, including specific four steps. Another one of specifically disclosed is particulate alkali metal niobate represented by the formula (1) having a substantially rectangular cuboid shape, wherein the substantially rectangular cuboid shape has a longest side and a shortest side, the length of the longest side represented by an index Lmax is 0.10 to 25 ?m, and the length of the shortest side represented by an index Lmin is 0.050 to 15 ?m.Type: ApplicationFiled: April 5, 2010Publication date: March 15, 2012Applicants: SAKAI CHEMICAL INDUSTRY CO., LTD., FUJI CERAMICS CORPORATION, TOHOKU UNIVERSITYInventors: Atsushi Muramatsu, Kiyoshi Kanie, Atsuki Terabe, Yasuhiro Okamoto, Hideto Mizutani, Satoru Sueda, Hirofumi Takahashi
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Publication number: 20120021276Abstract: The present invention is a secondary battery, including: an electrode group that includes a positive electrode and a negative electrode, an electrolyte, and a battery cell container that contains the electrode group and the electrolyte and that is sealed, wherein: an adhesive layer for trapping foreign matter present inside the battery cell container is disposed in the battery cell container by exposing at least part of the adhesive layer so as to allow the adhesive layer to come into contact with the electrolyte.Type: ApplicationFiled: July 20, 2011Publication date: January 26, 2012Inventors: Yuichi TAKATSUKA, Katsunori Suzuki, Sho Matsumoto, Kenji Nakai, Tatsuhiko Kawasaki, Hirofumi Takahashi, Yoshio Onodera
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Publication number: 20110289450Abstract: A method and apparatus for displaying batch execution data of an industrial plant configured for performing a plurality of batch executions. The method comprises selecting a first level element in a first level window; and displaying in a second level window all second level elements comprised by the selected first level element, the second level window being displayed within the first level window directly beneath the selected first level element without obscuring any other first level element in the first level window.Type: ApplicationFiled: May 21, 2010Publication date: November 24, 2011Applicant: YOKOGAWA ELECTRIC CORPORATIONInventors: Hirofumi Takahashi, Mitsuhiro Yamamoto
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Patent number: 7999661Abstract: A signal relay device, a communication network system and an operation system include: a standardized logic interface conversion unit for judging a control system type or a device type and converting a signal to a signal appropriate for a communication network; or a device side logic interface conversion unit for converting a signal from the communication network to a signal appropriate for the control system type or the device type. An operation monitoring station includes a an advanced control block for the control system or the device and transmits a control signal to the communication network.Type: GrantFiled: June 23, 2005Date of Patent: August 16, 2011Assignee: Yokogawa Electric CorporationInventors: Isao Uchida, Masanori Noguchi, Toshiro Tomita, Tetsuo Hoshi, Koji Demachi, Toshiki Ogawa, Yoji Saito, Hirofumi Takahashi