Patents by Inventor Takao Ishikawa

Takao Ishikawa 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: 7805271
    Abstract: The object of the present invention provides an evaluation system for evaluating accurately emission amount of environmental influence substance of fuel in a fuel supply facility for supplying stored fuel to a consumer. An evaluation system evaluates the emission amount of environmental influence substance of fuel in which the environmental properties (greenhouse gas emissions) accumulated in the process of drilling a first energy, transporting and storing, producing fuel, and supplying the fuel are taken into account. The evaluation system enables to present the environmental properties of the sold fuel to the fuel consumer and allows the fuel consumer to select, thereby promoting the reduction of emission amount of the greenhouse gas of the fuel supplier and the fuel consumer.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: September 28, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Masafumi Nojima, Akiyoshi Komura, Takeyuki Itabashi, Sunao Funakoshi, Hiroshi Arita, Yukinobu Maruyama, Youichi Horii, Takao Ishikawa
  • Patent number: 7654232
    Abstract: A hydrogen engine system for driving an engine with hydrogen gases as a fuel comprises a hydrogenated liquid fuel tank, which holds a hydrogenated liquid fuel in a liquid phase, a preheater, to which the hydrogenated liquid fuel and a dehydrogenated fuel from the hydrogen feed unit are transported and which preheats the hydrogenated liquid fuel owing to heat exchange, an vaporizer, to which the hydrogenated liquid fuel as preheated and exhaust gases of the engine are transported and which heats the hydrogenated liquid fuel to put the same in a vapor phase, and a hydrogen feed unit, to which the hydrogenated liquid fuel as vaporized and exhaust gases of the engine are transported and which generates hydrogen gases owing to dehydrogenation to transport the same to the engine.
    Type: Grant
    Filed: October 3, 2007
    Date of Patent: February 2, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Hirotoshi Ishimaru, Tetsuro Miyamoto, Takao Ishikawa, Atsushi Shimada, Masatoshi Sugimasa
  • Patent number: 7650976
    Abstract: A low-friction sliding member in a transmission is at least one of sliding members which are in slidable contact with each other in presence of a transmission oil composition. The low-friction sliding member includes a base material having a sliding section. A hard carbon thin film is coated at a sliding surface of the sliding section of the base material. The hard carbon thin film contains hydrogen in an amount not more than 20 atomic %. The transmission oil composition contains at least one of organic oxygen-containing compound and aliphatic amine compound.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: January 26, 2010
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Takao Ishikawa, Kiyotaka Nakamura, Makoto Kano, Takafumi Ueno
  • Publication number: 20090250018
    Abstract: An engine system comprising an engine, hydrogen medium capable of repeating chemically storing and discharging hydrogen, an exhaust gas pipe from said engine; and a reactor unit bearing a catalyst; wherein the hydrogen generated using the heat of the exhaust gas in said reactor unit or the mixture of the hydrogen and said hydrogen medium being supplied to said engine; wherein said reactor unit includes at least first reactor and second reactor in said exhaust gas pipe and each of said reactors comprises a partition wall disposed between an exhaust gas passage and a hydrogen medium passage; and wherein the thermal resistance of said partition wall of said first reactor positioned on the upstream side is larger than that of said second reactor positioned on the downstream side, and said hydrogen medium is supplied from said first reactor to said second reactor.
    Type: Application
    Filed: February 19, 2009
    Publication date: October 8, 2009
    Applicant: Hitachi, Ltd.
    Inventors: Tadashi Sano, Shigenori Togashi, Takao Ishikawa, Atsushi Shimada
  • Publication number: 20090246088
    Abstract: A dehydrogenation fuel theft prevention system for preventing the theft of dehydrogenation organic fuel containing hydrogen is provided. The dehydrogenation fuel theft prevention system is for systems including a reformer for dehydrogenating organic fuel containing at least hydrogen and a dehydrogenation fuel recovery tank for storing dehydrogenation fuel produced when organic fuel is dehydrogenated in the reformer. The theft prevention system is provided with a means for mixing an odorant as a component with a pungent odor other than the fuel components or a agent for coagulating the fuel components. The odorant or the coagulating agent is mixed when fuel is manufactured, distributed, utilized, recovered, or stored or fuel is about to be stolen.
    Type: Application
    Filed: February 18, 2009
    Publication date: October 1, 2009
    Inventors: Masafumi Nojima, Akiyoshi Komura, Takao Ishikawa, Kenichi Souma, Masatoshi Sugimasa, Naoki Yoshimoto
  • Publication number: 20090241861
    Abstract: It is an object of the invention to provide an engine system using a small-sized heat exchanger having a high efficiency and a stable performance for heating and vaporizing a hydrogen medium supplied to a reactor vessel.
    Type: Application
    Filed: March 26, 2009
    Publication date: October 1, 2009
    Inventors: Tadashi Sano, Takao Ishikawa, Atsushi Shimada
  • Patent number: 7568452
    Abstract: An object of the invention is to provide an engine system driving an engine by using a hydrogen rich gas generated from a medium chemically repeating a hydrogen absorption and a hydrogen desorption as one of fuels, in which the engine system can efficiently generate a hydrogen rich gas from the medium. In an engine system which mounts a medium chemically repeating a hydrogen absorption and a hydrogen desorption thereon, is provided with a hydrogen supplying apparatus generating or storing a hydrogen rich gas from the medium, and drives an engine by using the hydrogen rich gas as one of fuels, the engine system has a detecting portion detecting an operating state of the engine, and a medium supplying amount control means controlling a supplying amount of the medium supplied to the hydrogen supplying apparatus in correspondence to a result of detection of the detecting portion.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: August 4, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Atsushi Shimada, Takao Ishikawa, Takeyuki Itabashi, Hiroshi Kanemoto
  • Publication number: 20090165890
    Abstract: A fuel supply and collection system comprising: a delivery vehicle having a supply-fuel tank, a collection-fuel tank, a remaining supply-fuel quantity sensor for detecting a remaining fuel quantity of the supply-fuel tank, a remaining collection-fuel quantity sensor for detecting a remaining fuel quantity of the collection-fuel tank, and a display unit; a plurality of fuel stations having a supply-fuel tank, a collection-fuel tank, a remaining supply-fuel quantity sensor for detecting a remaining fuel quantity of the supply-fuel tank, and a remaining collection-fuel quantity sensor for detecting a remaining fuel quantity of the collection-fuel tank; and a central information processing center having an information processing apparatus; wherein, the remaining supply-fuel and collection-fuel quantities of the delivery vehicle and the remaining supply-fuel and collection-fuel quantities of each fuel station are estimated in the information processing apparatus from remaining supply-fuel quantity data and rema
    Type: Application
    Filed: December 23, 2008
    Publication date: July 2, 2009
    Inventors: Akiyoshi Komura, Kenichi Souma, Takao Ishikawa, Masafumi Noujima
  • Publication number: 20090139470
    Abstract: An engine system in which either hydrogen produced from a hydrogen containing medium in terms of reaction using a catalyst or a mixture of the hydrogen and the hydrogen containing medium is employed as a fuel, in order to restrict heat deformation of a reactor, the engine system including a reactor configured to cause a reaction using a catalyst, in which the reactor is constituted by alternately disposing plural exhaust passages and plural fuel passageways of the engine system with a wall interposed therebetween; at least one carrier configured to carry the catalyst and to be formed in a substantially rectangular plate shape is fitted in at least one of fuel passageways; and the carrier is provided with a plate portion which has a surface disposed in a fuel flowing direction and is formed in a substantially rectangular plate shape and at least one slit portion which divides the surface of the plate portion in the fuel flowing direction.
    Type: Application
    Filed: November 26, 2008
    Publication date: June 4, 2009
    Inventors: Tadashi Sano, Shigenori Togashi, Takao Ishikawa, Atsushi Shimada, Kenichi Souma
  • Patent number: 7535106
    Abstract: A wiring glass substrate includes a glass substrate formed of glass and having a plurality of holes formed at predetermined positions, bumps so formed as to be connected to a conductive material filling the holes and wirings formed on a surface opposite to a surface having the bumps formed thereon and electrically connecting a plurality of connection terminals arranged in intervals different from intervals of the holes to the conductive material. The shape of the conductive material is porous and porous electrodes are bonded to the inner wall surfaces of the holes by an anchor effect to increase the strength of the glass substrate.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: May 19, 2009
    Assignee: Renesas Technology Corp.
    Inventors: Osamu Shiono, Takao Ishikawa, Takashi Namekawa, Yasutaka Suzuki, Takashi Naito, Hiroki Yamamoto, Daigorou Kamoto, Ken Takahashi, Tadanori Segawa, Toshiya Satoh, Takao Miwa, Shigehisa Motowaki
  • Patent number: 7527660
    Abstract: A hydrogen fuel manufacturing system capable of efficiently producing each hydrogen fuel in accordance with a demanded quantity is disclosed. The system includes a hydrogen manufacturing apparatus for manufacturing hydrogen, more than two hydrogen fuel manufacturing apparatuses for manufacturing hydrogen fuels by letting the hydrogen produced by the hydrogen manufacturing apparatus change into a fuel-use form, wherein the fuel form to be manufactured by the hydrogen fuel manufacturing apparatuses is set to have more than two kinds. Additionally the system has a hydrogen fuel production volume receiver device for receipt of the information as to a hydrogen fuel production volume, thereby controlling the production volume of the hydrogen fuel being manufactured by the hydrogen fuel manufacturing apparatus, based on the hydrogen fuel production volume information as received by the hydrogen fuel production volume receiver device.
    Type: Grant
    Filed: February 15, 2005
    Date of Patent: May 5, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Masafumi Noujima, Takeyuki Itabashi, Takao Ishikawa, Hiroshi Kanemoto
  • Publication number: 20090089075
    Abstract: The invention provides a fuel environmental evaluation system for evaluating a fuel environment characteristic in an energy distribution process comprising a means for inputting an amount of raw material supplied to equipment for each process of energy distribution, an amount of product produced from each equipment for each process, and a type and an amount of utility supplied to the equipment for each process when producing the product; a storage means for storing input data; a storage means for storing a basic unit for an amount of environmentally affecting matter emission per unit amount of an environmental emission matter in the raw material, utility and product; an environmental emission calculation section for calculating an amount of environmentally affecting matter emission from data of amounts of the raw material, utility and product, and the basic unit for the amount of environmentally affecting matter emission; and a means for storing a calculation result from the environmental emission calculation
    Type: Application
    Filed: August 19, 2008
    Publication date: April 2, 2009
    Inventors: MASAFUMI NOUJIMA, AKIYOSHI KOMURA, TAKAO ISHIKAWA
  • Publication number: 20090025824
    Abstract: Recovery of dehydrogenation product must be done separately from supply of hydrogen fuel. However, there is a problem that it takes much time when dehydrogenation product recovery and fuel filling are done separately. A fuel filling/waste solution recovery apparatus includes measuring means to measure a volume of supplied fuel and a volume of recovered waste solution by measuring flow rates of solutions passing through a fuel filling nozzle and a recovery nozzle or piping, and a display which shows the volume of supplied fuel and the volume of recovered waste solution which are measured by the measuring means.
    Type: Application
    Filed: August 20, 2008
    Publication date: January 29, 2009
    Inventors: Masafumi Noujima, Takeyuki Itabashi, Takao Ishikawa, Hiroshi Kanemoto, Shinji Yamada
  • Publication number: 20090000575
    Abstract: An object of the present invention is, in an engine system including a medium which chemically repeats storage and release of hydrogen, to provide an engine system where CO2 emissions can be suppressed and system efficiency is excellent. The engine system includes a hydrogen supply device for producing hydrogen rich gas from a medium which chemically repeats the storage and release of hydrogen, and drives an engine using the hydrogen rich gas produced in the hydrogen supply device as one of the fuels. This engine system is characterized by comprising a waste heat supply device for supplying waste heat of the engine to the hydrogen supply device, a generator which generates electricity by power of the engine, an energy storage device for storing electric power produced by the generator, and a motor for converting electric power discharged from the energy storage device into power.
    Type: Application
    Filed: June 26, 2008
    Publication date: January 1, 2009
    Inventors: Atsushi Shimada, Takao Ishikawa, Masatoshi Sugimasa
  • Publication number: 20090000574
    Abstract: An organic hydride reactor generates hydrogen by electrolyzing electrolyte to manufacture the organic hydride from the generated hydrogen. The system has a anode and cathode opposed to each other, the electrolyte supplied between the anode and cathode, a hydrogenation catalyst performing hydrogenation reaction between the hydrogen supplied from the anode by electrolysis and organic compound. The anode cathode has gas-fluid separation function and the electrolyte is supplied to only one surface of the anode and cathode, and a gas caused by electrolysis is discharged from a surface not being in contact with the electrolyte of the anode and cathode.
    Type: Application
    Filed: June 26, 2008
    Publication date: January 1, 2009
    Inventors: Masatoshi Sugimasa, Akiyoshi Komura, Takao Ishikawa
  • Publication number: 20080236247
    Abstract: The object of the present invention provides an evaluation system for evaluating accurately emission amount of environmental influence substance of fuel in a fuel supply facility for supplying stored fuel to a consumer. An evaluation system evaluates the emission amount of environmental influence substance of fuel in which the environmental properties (greenhouse gas emissions) accumulated in the process of drilling a first energy, transporting and storing, producing fuel, and supplying the fuel are taken into account. The evaluation system enables to present the environmental properties of the sold fuel to the fuel consumer and allows the fuel consumer to select, thereby promoting the reduction of emission amount of the greenhouse gas of the fuel supplier and the fuel consumer.
    Type: Application
    Filed: February 20, 2008
    Publication date: October 2, 2008
    Inventors: Masafumi Nojima, Akiyoshi Komura, Takeyuki Itabashi, Sunao Funakoshi, Hiroshi Arita, Yukinobu Maruyama, Youichi Horii, Takao Ishikawa
  • Publication number: 20080241615
    Abstract: There is provided a hydrogen storage and/or supply device utilizing an organic compound medium capable of being repeatedly hydrogenated and dehydrogenated. This device comprises: a catalyst member formed of a stack of a plurality of catalyst plates for storing and/or releasing hydrogen through a chemical reaction of the organic compound medium by means of a metal catalyst; a heat collector plate for supplying heat from a heat source to the catalyst member; and a heat transfer portion in contact with the plurality of catalyst plates and the heat collector plate. Each catalyst plate includes: the metal catalyst; a substrate; a catalyst support formed on at least one face of the substrate for supporting the metal catalyst; and a flow channel for passing the organic compound medium therethrough. Furthermore, the heat transfer portion has a thermal conductivity higher than that of the catalyst support.
    Type: Application
    Filed: January 29, 2008
    Publication date: October 2, 2008
    Inventors: Masatoshi Sugimasa, Takao Ishikawa, Kohin Shu, Atsushi Shimada
  • Publication number: 20080236984
    Abstract: A low-friction sliding member in a transmission is at least one of sliding members which are in slidable contact with each other in presence of a transmission oil composition. The low-friction sliding member includes a base material having a sliding section. A hard carbon thin film is coated at a sliding surface of the sliding section of the base material. The hard carbon thin film contains hydrogen in an amount not more than 20 atomic %. The transmission oil composition contains at least one of organic oxygen-containing compound and aliphatic amine compound.
    Type: Application
    Filed: November 28, 2007
    Publication date: October 2, 2008
    Inventors: Takao ISHIKAWA, Kiyotaka NAKAMURA, Makoto KANO, Takafumi UENO
  • Publication number: 20080221261
    Abstract: According to the present invention, there is provided a low dielectric loss tangent resin composition containing a crosslinking component having a weight average molecular weight of not more than 1,000 and a plurality of styrene groups and represented by the formula [1], wherein R is a hydrocarbon skeleton which may have a substituent, R1 is hydrogen, methyl or ethyl, m is an integer of 1-4 and n is an integer of 2 or more, and further containing at least one member selected from a high polymer having a weight average molecular weight of not less than 5,000 and a filler, which resin composition can give a cured product having a good flexibility, high tensile strength and low dielectric constant and dielectric loss tangent.
    Type: Application
    Filed: May 9, 2008
    Publication date: September 11, 2008
    Inventors: Satoru Amou, Shinji Yamada, Takao Ishikawa, Takao Miwa
  • Publication number: 20080202449
    Abstract: An engine system comprises a detection means for detecting a supply quantity or supply pressure of hydrogen rich gas which is disposed in a hydrogen rich gas supply pipe for supplying hydrogen rich gas to a combustion chamber of the engine, a hydrogen rich gas supply valve control means for controlling the supply of hydrogen rich gas by controlling the open/close timing and the amount of open/close lift of the hydrogen rich gas supply valve disposed in the combustion chamber of the engine based on the supply quantity or supply pressure detected by the detection means, an inlet valve for supplying air to the combustion chamber of the engine separately from the hydrogen rich gas supply valve, and an inlet valve control means for controlling the volume of air taken into the combustion chamber of the engine by the inlet valve.
    Type: Application
    Filed: January 9, 2008
    Publication date: August 28, 2008
    Applicant: Hitachi, Ltd.
    Inventors: Atsushi SHIMADA, Takao Ishikawa, Akiyoshi Komura, Masatoshi Sugimasa, Takeyuki Itabashi