Patents by Inventor Ken Nozaki

Ken Nozaki 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: 8664798
    Abstract: A semiconductor integrated circuit device includes a power supply circuit that generates one or more internal supply voltages from an external supply voltage, and one or more functional circuits that operate on the one or more internal supply voltages. A step-down converter in the power supply circuit generates one or more stepped-down voltages from the external supply voltage. A control circuit in the power supply circuit compares the external supply voltage with a reference voltage and selects the internal supply voltages from among the external supply voltage and the stepped-down voltages according to the result of the comparison. The semiconductor integrated circuit device can accordingly operate on different external power supplies, and can continue to operate on battery power even if the battery voltage drops.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: March 4, 2014
    Assignee: Oki Semiconductor Co., Ltd.
    Inventor: Ken Nozaki
  • Publication number: 20100194201
    Abstract: A semiconductor integrated circuit device includes a power supply circuit that generates one or more internal supply voltages from an external supply voltage, and one or more functional circuits that operate on the one or more internal supply voltages. A step-down converter in the power supply circuit generates one or more stepped-down voltages from the external supply voltage. A control circuit in the power supply circuit compares the external supply voltage with a reference voltage and selects the internal supply voltages from among the external supply voltage and the stepped-down voltages according to the result of the comparison. The semiconductor integrated circuit device can accordingly operate on different external power supplies, and can continue to operate on battery power even if the battery voltage drops.
    Type: Application
    Filed: January 22, 2010
    Publication date: August 5, 2010
    Applicant: OKI SEMICONDUCTOR CO., LTD.
    Inventor: Ken Nozaki
  • Patent number: 7482075
    Abstract: In a reforming method for a high temperature type fuel cell in which dimethyl ether is used as fuel gas, and a gas containing hydrogen and carbon monoxide produced by reacting dimethyl ether with carbon dioxide is fed into the anode, the carbon deposition at the time of reforming is prevented. The feeding amounts of dimethyl ether and carbon dioxide from a pipe h1 into the reforming reactor are regulated in such a way that the relation between temperature inside the reforming reactor and the molar ratio of carbon dioxide to dimethyl ether in the reforming reactor falls within the region C.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: January 27, 2009
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Toru Kato, Masatsugu Amano, Ken Nozaki, Ken Kato, Akira Negishi
  • Publication number: 20070163889
    Abstract: An electrolyzer structure is provided that is suitable for use in a method that produces hydrogen by steam electrolysis by feeding reducing gas to an anode side and feeding steam to a cathode side of an electrolyzer that is partitioned into the anode side and the cathode side by a diaphragm of solid oxide electrolyte, and feeding power to the anode and cathode of the electrolyzer. One embodiment of the present invention relates to an apparatus that produces hydrogen by high temperature steam electrolysis and that comprises an electrolyzer partitioned into an anode side and a cathode side by a solid oxide electrolyte diaphragm, a conduit that feeds reducing gas to the anode side of the electrolyzer, and a conduit that feeds steam to the cathode of the electrolyzer, in which a metal cermet stable in a reducing atmosphere is used as the material of the anode and the cathode.
    Type: Application
    Filed: February 17, 2005
    Publication date: July 19, 2007
    Inventors: Tohru Kato, Ken Nozaki, Hiroshi Yokota, Chi Matsumura, Hiroyuki Yamada
  • Publication number: 20050129995
    Abstract: In a reforming method for a high temperature type fuel cell in which dimethyl ether is used as fuel gas, and a gas containing hydrogen and carbon monoxide produced by reacting dimethyl ether with carbon dioxide is fed into the anode, the carbon deposition at the time of reforming is prevented. The feeding amounts of dimethyl ether and carbon dioxide from a pipe h1 into the reforming reactor are regulated in such a way that the relation between temperature inside the reforming reactor and the molar ratio of carbon dioxide to dimethyl ether in the reforming reactor falls within the region C.
    Type: Application
    Filed: December 9, 2004
    Publication date: June 16, 2005
    Inventors: Toru Kato, Masatsugu Amano, Ken Nozaki, Ken Kato, Akira Negishi
  • Patent number: 6854646
    Abstract: A transaction processing method is provided for a transaction management system which processes transactions using settlement cards. In the transaction processing method, a transaction process is executed based on individual control information that is input at each transaction and transaction information for the transaction. A judgment is made based on the transaction information whether or not the transaction satisfies at least one count-up condition indicating a predetermined range of transaction types. When the transaction meets the count-up condition, numerical information indicative of the number of transactions satisfying the count-up conditions is added. A determination is made whether or not a numerical value represented by the numerical information after the addition is within a range specified by extraction conditions.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: February 15, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Takeshi Ieshima, Yuuji Ide, Takeshi Yokota, Ken Nozaki, Seiji Futatsugi, Masahiro Sakashita, Ryoji Satoh, Masao Nishida
  • Patent number: 6753707
    Abstract: A delay circuit includes an output circuit including first and second output elements. The first and second output elements are connected serially between a first power supply source and a second power supply source. The delay circuit further includes a delay element, which is coupled between a first input circuit and an output circuit to generate a first control signal that is delayed with respect to the input signal. The delay circuit still further includes a first node coupled between the delay element and one of the first and second output elements; and a second node, coupled to the other output elements to supply a second control signal having substantially no delay with respect to the input signal.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: June 22, 2004
    Assignee: Oki Electric Industry CO, Ltd.
    Inventors: Takashi Honda, Ken Nozaki
  • Publication number: 20030189452
    Abstract: A delay circuit includes an output circuit including first and second output elements. The first and second output elements are connected serially between a first power supply source and a second power supply source. The delay circuit further includes a delay element, which is coupled between a first input circuit and an output circuit to generate a first control signal that is delayed with respect to the input signal. The delay circuit still further includes a first node coupled between the delay element and one of the first and second output elements; and a second node, coupled to the other output elements to supply a second control signal having substantially no delay with respect to the input signal.
    Type: Application
    Filed: April 4, 2002
    Publication date: October 9, 2003
    Inventors: Takashi Honda, Ken Nozaki
  • Publication number: 20030120590
    Abstract: An electronic settlement system processes settlements that are conducted using credit cards through a communication line connecting a server of a credit card company to card-processing devices of member stores or terminals of customers. The electronic settlement system includes a device that provides personal information of customers to member stores based on the agreement by the customers to provide such personal information, and a device that provide the customers with preferred services either from the credit card company or the member stores in exchange for the personal information provided. Furthermore, the electronic settlement system may includes a device at the card company to receive fees for providing the member stores with the personal information of the customers. The electronic settlement system enables the customers to receive services, the member stores to utilize accurate personal information, and the card company to receive fees from the member stores.
    Type: Application
    Filed: July 15, 2002
    Publication date: June 26, 2003
    Applicant: HITACHI, LTD.
    Inventors: Takeshi Ieshima, Seiji Futatsugi, Masahiro Sakashita, Yuuji Ide, Ken Nozaki, Takeshi Yokota, Ryoji Satoh, Masao Nishida
  • Publication number: 20030066880
    Abstract: A transaction processing method is provided for a transaction management system which processes transactions using settlement cards. In the transaction processing method, a transaction process is executed based on individual control information that is input at each transaction and transaction information for the transaction. A judgment is made based on the transaction information whether or not the transaction satisfies at least one count-up condition indicating a predetermined range of transaction types. When the transaction meets the count-up condition, numerical information indicative of the number of transactions satisfying the count-up conditions is added. A determination is made whether or not a numerical value represented by the numerical information after the addition is within a range specified by extraction conditions.
    Type: Application
    Filed: July 11, 2002
    Publication date: April 10, 2003
    Applicant: HITACHI, LTD.
    Inventors: Takeshi Ieshima, Yuuji Ide, Takeshi Yokota, Ken Nozaki, Seiji Futatsugi, Masahiro Sakashita, Ryoji Satoh, Masao Nishida
  • Publication number: 20020032645
    Abstract: In a method of calculating a score using data, a plurality of layers are disposed and a prediction model is prepared for each of the layers to calculate a feature. According to a prediction model in a first layer, an output value is calculated using input data including at least one attribute selected from attributes of the data. Thereafter, a prediction model in a subsequent layer is selected according to the output value. The output value calculation and the subsequent layer prediction model selection are repetitiously conducted until a prediction model of a final layer is reached. A score is calculated using the prediction model in the final model.
    Type: Application
    Filed: January 19, 2001
    Publication date: March 14, 2002
    Inventors: Ken Nozaki, Hiroshi Yoshikawa, Tetsuya Maruoka
  • Patent number: 5704118
    Abstract: A process for producing a carbon sensor for measuring a composition, includes (a) providing first and second carbon electrodes each comprised of a bundle of linear, thin carbon members; (b) surrounding the first carbon electrode by dipping the first carbon electrode in a solution comprised of a reactive substance which reacts chemically with the composition to be measured; (c) disposing the first carbon electrode and the solution in a cylindrical ion permeable membrane to hold the solution in the first carbon electrode as well as between the first carbon electrode and the cylindrical ion permeable membrane; (d) positioning the cylindrical ion permeable membrane including the first carbon electrode and the solution in an insulating tubular member; and (e) disposing the second carbon electrode between the insulating tubular member and the cylindrical ion permeable membrane.
    Type: Grant
    Filed: March 28, 1995
    Date of Patent: January 6, 1998
    Assignee: Agency of Industrial Science and Technology
    Inventors: Hiroko Kaneko, Akira Negishi, Ken Nozaki
  • Patent number: 5503728
    Abstract: A carbon electrode is dipped in a solution containing a reactive substance, and the carbon electrode impregnated with the solution is covered with an insulating tubular member; or a solution containing a reactant is poured into an insulating tube, and a carbon electrode is inserted into the tube; whereby the reactant is made coexistent in the periphery of the carbon electrode. Alternatively, a reactive substance such as an active enzyme and graphite particles or activated carbon particles are mixed with a liquid and dispersed therein to prepare a thoroughly wetted paste. The paste is introduced by means of an extruding mechanism such as a syringe into an insulating tubular member in which a bundle of many thin carbon rods as a lead is inserted. Thus, a carbon sensor electrode is produced. Alternatively, a first carbon electrode that has been dipped in an active enzyme or an enzyme-like reactive substance solution is disposed in a wet condition in a cylindrical ion permeable membrane.
    Type: Grant
    Filed: October 4, 1994
    Date of Patent: April 2, 1996
    Assignee: Agency of Industrial Science and Technology
    Inventors: Hiroko Kaneko, Akira Negishi, Ken Nozaki
  • Patent number: 5366824
    Abstract: A flow battery comprises a plurality of unit cells each constituted of stacked unit cells each consisting of a prescribed number of stacked diaphragms and positive electrode chambers and negative electrode chambers separated by the diaphragms, a positive electrode fluid tank associated with each unit cell to have its outlet connected with an inlet of the positive electrode chamber of the unit cell and its inlet connected with an outlet of the positive chamber of a immediately preceding unit cell, a negative electrode fluid tank associated with each unit cell to have it outlet connected with an inlet of the negative chamber of the unit cell and its inlet connected with outlet of the negative chamber of an immediately preceding unit cell, a pump for supplying positive electrode fluid from the positive electrode fluid tanks to the positive electrode chambers, a pump for supplying negative electrode fluid from the negative electrode fluid tanks to the negative electrode chambers, and means for electrically connec
    Type: Grant
    Filed: October 20, 1993
    Date of Patent: November 22, 1994
    Assignee: Agency of Industrial Science & Technology, Ministry of International Trade & Industry
    Inventors: Ken Nozaki, Kosuke Kurokawa, Izumi Tsuda, Osamu Hamamoto, Keiiti Watanabe
  • Patent number: 5318865
    Abstract: In a redox battery including an electrolytic cell which has a circulating type electrolytic solution and an intermittent circulating type electrolytic solution which has a membrane and which employs an electrolytic solution permeable porous electrode, a solution of vanadium (II/III) dissolved in sulfuric acid is used as an active material on the negative electrode of a redox couple, and an oxidizing substance in a gas (such as oxygen) or in electrolytic solution is used as an active material on the positive electrode of the redox couple. The redox battery of the invention shows high energy density, and has a small size and a high output, thus it can be used for an electric vehicle or as a portable battery.
    Type: Grant
    Filed: June 2, 1992
    Date of Patent: June 7, 1994
    Assignees: Director-General, Agency of Industrial Science and Technology, Kashima-Kita Electric Power Corporation
    Inventors: Hiroko Kaneko, Akira Negishi, Ken Nozaki, Kanji Sato, Masato Nakajima
  • Patent number: 5273639
    Abstract: A method of making a probe electrode includes the steps of kneading a mixture of 75-80% by weight of a carbon material, 10-14% by weight of an organic binder and 7-9% by weight of mineral oil, forming the kneaded mixture into a predetermined shape, heating the shaped mixture in air the temperature of up to 300.degree. C. and raising the temperature in an atmosphere of inert gas up to 1000.degree. C.
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: December 28, 1993
    Assignees: Agency of Industrial Science & Technology, Ministry of International Trade & Industry
    Inventors: Hiroko Kaneko, Ken Nozaki, Akira Negishi
  • Patent number: 5250158
    Abstract: A vanadium electrolytic solution containing highly concentrated and dissolved vanadium is produced by a method wherein a vanadium compound selected from the group consisting of ammonium metavanadate and vanadium pentaoxide is subjected to a reduction operation in the presence of inorganic acids. At this time, by repeating the addition of the concentrated inorganic acids and the vanadium compound, a tetravalent and pentavalent vanadium solution of 3.4 mol/l is obtained.In addition, the resulting vanadium electrolytic solution is electrolyzed, whereby tetravalent vanadium is reduced to be trivalent on the negative electrode and is oxidized into pentavalent vanadium on the positive electrode, and then pentavalent vanadium is reduced into tetravalent vanadium by a reducing agent to form a discharged couple of trivalent and tetravalent vanadium, and an electrolytic solution is obtained which is capable of being charge-discharged.
    Type: Grant
    Filed: October 8, 1991
    Date of Patent: October 5, 1993
    Assignees: Director-General, Agency of Industrial Science and Technology, Kashima-Kita Electric Power Corporation
    Inventors: Hiroko Kaneko, Akira Negishi, Ken Nozaki, Kenji Sato, Ichiro Nakahara
  • Patent number: 4814241
    Abstract: An electrolyte for a Redox flow battery contains from 1 to 4 normal hydrochloric acid and at least 0.5 mole/liter of an active material, and further contains from 0.1 to 4 normalities of an acid comprising an anion which does not inhibit the electrode reactions in addition to the hydrochloric acid. This electrolyte reduces the cell resistivity and improves the solubility of active materials.
    Type: Grant
    Filed: March 16, 1987
    Date of Patent: March 21, 1989
    Assignees: Director-General, Agency of Industrial Science and Technology, Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Ikuo Nagashima, Jun Fukui, Hiroshi Gotoh, Hiroko Kaneko, Ken Nozaki, Takeo Ozawa
  • Patent number: 4797566
    Abstract: An electric energy storing apparatus comprising lead-acid storage battery means and flowing type battery means. The lead-acid storage battery means is connectable to power lines interconnecting electric power generating means and a load, and the flowing type battery is connectable to the lead-acid storage battery means in order to charge the storage battery means, execute an equalization charge, or act as an end cell for the storage battery means.
    Type: Grant
    Filed: February 27, 1987
    Date of Patent: January 10, 1989
    Assignees: Agency of Industrial Science and Technology, Ebara Corporation
    Inventors: Ken Nozaki, Yuichi Akai
  • Patent number: 4732827
    Abstract: A process for producing an anolyte and a catholyte for redox cells which comprises the steps of heating chromium ore together with carbonaceous substances to produce a pre-reduced chromium product produced a part of iron and chromium in chromium ore, dissolving the pre-reduced chromium product in hydrochloric acid and/or sulfuric acid iron and chromium. Thus, the dissolving step can be simplified, the predetermined concentration can be simply regulated.
    Type: Grant
    Filed: July 2, 1986
    Date of Patent: March 22, 1988
    Assignees: Japan Metals and Chemical Co., Ltd., Agency of Industrial Science and Technology
    Inventors: Hiroko Kaneko, Ken Nozaki, Takeo Ozawa, Koichi Oku, Takashi Shimanuki, Yoshinori Koga