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: 8206035
    Abstract: The invention provides a low-friction sliding mechanism, a low-friction agent composition, a friction reduction method, a manual transmission and a final reduction gear unit that can exert very excellent low friction characteristics to sliding surfaces present under various applications, and, in particular, that have more excellent low friction characteristics than that of a combination of an existing steel material and an organic Mo compound. The low-friction sliding mechanism has an oxygen-containing organic compound or an aliphatic amine compound interposed between sliding surfaces that a DLC coated sliding member and a sliding member form. The low-friction agent composition contains an oxygen-containing organic compound or an aliphatic amine compound. The friction reduction method includes supplying the low-friction agent composition between sliding surfaces that a DLC coated sliding member and a sliding member form.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: June 26, 2012
    Assignees: Nissan Motor Co., Ltd., Nippon Oil Corporation
    Inventors: Jean Michel Martin, Shigeki Takeshima, Shozaburo Konishi, Makoto Kano, Yutaka Mabuchi, Takao Ishikawa, Takafumi Ueno, Kiyotaka Nakamura, Takahiro Hamada
  • Publication number: 20120145096
    Abstract: An engine system with a reformer, wherein an unreformed fuel is reformed by the reformer mounted in an exhaust pipe, and wherein a reformed fuel containing hydrogen is supplied to an engine. The engine system with a reformer includes a controller which, when the hydrogen generated by the reformer is supplied to the engine, determines a target heat generation beginning timing in accordance with a load applied to an engine, an engine speed, and an air excess ratio of an air-fuel mixture, and which controls an ignition timing of the engine so that a difference between a current heat generation beginning timing and the target heat generation beginning timing of the engine is within a predetermined range.
    Type: Application
    Filed: August 18, 2010
    Publication date: June 14, 2012
    Applicant: HITACHI, LTD.
    Inventors: Atsushi Shimada, Takao Ishikawa, Yasuo Yoshii
  • Patent number: 8197752
    Abstract: Managing system for emissions environmental pollutants comprising: a measuring device for measuring a flow rate of a fuel supplied to a customer; an unit emission quantity storage device of environmentally influential substance for storing a unit emission quantity of an environmentally influential substance emitted when an unit flow rate of fuel is manufactured or processed; and an emission quantity computing device of environmentally influential substance for calculating, based on the fuel flow rate measured by the measuring device, and the unit emission quantity of the environmentally influential substance stored by the unit emission quantity storage device, an environmental emission quantity of the environmentally influential substance emitted when the fuel supplied to the customer is manufactured or processed.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: June 12, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Masafumi Nojima, Takeyuki Itabashi, Takao Ishikawa, Hiroshi Kanemoto
  • Publication number: 20120139164
    Abstract: A compacting device of the invention includes: a die (11) having a through hole (10) extending in a vertical direction; and a container support (12) inserted into the through hole (10) vertically from below, disposed to be vertically movable in the through hole (10), and supporting a container (3) from below while being in contact with a portion of a lower surface of the container (3). The container support (12) and the through hole (10) define a housing space (S) for the container (3). The compacting device further includes: a lower punch (20a) for applying ultrasonic vibration to powder contained in the container (3); and an upper punch (20b). The container support (12) has a movement path (15) for the lower punch (20a), formed along the entire vertical length of the container support (12).
    Type: Application
    Filed: August 28, 2009
    Publication date: June 7, 2012
    Applicant: KAO CORPORATION
    Inventors: Takao Ishikawa, Ikuo Fukuda
  • Publication number: 20120110984
    Abstract: In an engine system with a reformer being installed in an exhaust pipe to reform a fuel, a control valve for controlling a flow rate of exhaust gas is provided downstream from an installed position of the reformer in the exhaust pipe. In the engine system with the reformer, since a part of the exhaust gas can be trapped in a space between the reformer and an engine chamber by closing the control valve during an exhaust stroke, the reforming efficiency of the reformer can be heightened.
    Type: Application
    Filed: December 25, 2009
    Publication date: May 10, 2012
    Applicant: Hitachi, Ltd.
    Inventors: Atsushi Shimada, Takao Ishikawa, Tadashi Sano
  • Patent number: 8171894
    Abstract: An engine system in which hydrogen is employed as a fuel, 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: Grant
    Filed: November 26, 2008
    Date of Patent: May 8, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Tadashi Sano, Shigenori Togashi, Takao Ishikawa, Atsushi Shimada, Kenichi Souma
  • Publication number: 20120088335
    Abstract: Manufacturing method of an electronic component including connecting one lead of a pair of leads to a surface parallel with a pn connection layer of an electronic element having a structure where the p-type layer and the n-type layer are connected by the pn connection layer provided between the p-type layer and the n-type layer, connecting another lead to another surface parallel with the pn connection layer; and forming a supporting part of the pair of the leads that is connected to and supporting the electronic element, and an electrode part functioning as an electrode, by bending the pair of the leads to an outside.
    Type: Application
    Filed: December 7, 2011
    Publication date: April 12, 2012
    Applicant: FUJITSU LIMITED
    Inventors: Masayuki ITOH, Takao ISHIKAWA, Tomokazu NAKASHIMA
  • Patent number: 8109286
    Abstract: In a fuel tank for containing a hydrogen storing material and a product generated by dehydrogenation reaction of the hydrogen storing material, comprising, a fuel chamber for containing the hydrogen storing material, a waste chamber for containing the product, and a tank envelope for containing the fuel chamber and the waste chamber, the fuel tank further comprises a partition wall fluidly separating the fuel chamber and the waste chamber from each other and being movable to change a ratio in volume between the fuel chamber and the waste chamber, and each of the fuel chamber and the waste chamber has a valve to be hermetically closed.
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: February 7, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Masafumi Nojima, Takao Ishikawa, Hiroshi Kanemoto, Takeyuki Itabashi
  • Patent number: 8096269
    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: Grant
    Filed: March 26, 2009
    Date of Patent: January 17, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Tadashi Sano, Takao Ishikawa, Atsushi Shimada
  • Patent number: 8093616
    Abstract: An electronic component, includes a main body part inserted in an opening part formed in a board; and a pair of leads each of the leads having an end connected to the main body part and another end connected to a pad formed on the board; wherein the main body part is provided with the leads so that a functional surface of the main body part is positioned at a side connected to the pads of the board.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: January 10, 2012
    Assignee: Fujitsu Limited
    Inventors: Masayuki Itoh, Takao Ishikawa, Tomokazu Nakashima
  • Publication number: 20110265736
    Abstract: Disclosed is an engine system with a reformer, the engine system comprising a reformer and driving an engine using, as a fuel, a reformed fuel produced by reforming pre-reformed fuel with the reformer, in which the reformer is connected with both a pre-reformed fuel supply adjustment unit which adjusts the amount of the pre-reformed fuel supplied to the reformer and a reformed fuel supply adjustment unit which adjusts the amount of reformed fuel supplied to the engine, and the reformer is installed adjacent to the engine combustion chamber via the reformed fuel supply adjustment unit.
    Type: Application
    Filed: June 30, 2009
    Publication date: November 3, 2011
    Inventors: Atsushi Shimada, Takao Ishikawa, Tadashi Sano
  • Patent number: 8033255
    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: Grant
    Filed: February 19, 2009
    Date of Patent: October 11, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Tadashi Sano, Shigenori Togashi, Takao Ishikawa, Atsushi Shimada
  • Patent number: 7968502
    Abstract: The present invention relates to a lubricant for lubricating relatively movable, facing contact surfaces at least one of which is coated with DLC, a method of lubricating DLC contact surfaces with this lubricant, and a system having DLC contact surfaces. The lubricant fulfills the following conditions (a) and (b): (a) the lubricant contains a lubricant base oil containing, as a main component, a base oil composed at least one of a hydrocracked mineral oil, a wax-isomerized mineral oil, and a poly-?-olefin base oil. The base oil has a kinematic viscosity of 2 to 20 mm2/s at 100° C., a total aromatic content of not higher than 5 mass %, and a sulfur content of 0.005 mass %; and (b) the lubricant has a sulfur content of not higher than 0.2 mass %.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: June 28, 2011
    Assignees: Nippon Oil Corporation, Nissan Motor Co., Ltd.
    Inventors: Shozaburo Konishi, Makoto Kano, Takafumi Ueno, Takao Ishikawa
  • Patent number: 7951756
    Abstract: The present invention relates to a system wherein a pair of relatively movable, facing DLC contact surfaces at least one of which is coated with a DLC film, are further lowered in friction, and the low friction property is stably maintained. The present invention also relates to a lubricant for the system, and a lubricating method. The lubricant for the system having the DLC contact surfaces contains lubricant base oil (A) mainly composed of base oil (X), and sulfur-containing molybdenum complex (B). The base oil (X) is at least one of hydrocracked mineral oils, wax-isomerized mineral oils, and poly-?-olefin base oils, and has a kinematic viscosity of 2 to 20 mm2/s at 100° C., a total aromatic content of not higher than 5 mass %, and a total sulfur content of not higher than 0.005 mass %.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: May 31, 2011
    Assignees: Nippon Oil Corporation, Nissan Motor Co., Ltd.
    Inventors: Shozaburo Konishi, Makoto Kano, Takafumi Ueno, Takao Ishikawa
  • Patent number: 7896933
    Abstract: A hydrogen supplying apparatus equipped with a hydrogen separation membrane and a catalyst plate, which is made by forming a catalyst layer on a metal plate, wherein the metal material of the membrane is different in hardness from that of the catalyst plate. A method of producing the hydrogen supplying apparatus, which comprises: bonding a catalyst plate and a hydrogen separation membrane to each other, by friction-stir welding, wherein a welding tool is pressed towards only one of the membrane and catalyst plate, forming a reaction layer between the membrane and the catalyst plate by the frictional heat, and forming ripples in the welded interface.
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: March 1, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Akihiro Sato, Takao Ishikawa, Kinya Aota
  • Publication number: 20110005473
    Abstract: A hydrogen supply device which generates hydrogen from hydrogen storing material which chemically stores hydrogen by a catalyst, wherein said device comprises valves on the fuel supply port and the exhaust port, and a valve controller which controls timing to opening and close the valves. Fuel supply pressure is 2 to 20 atm. Hydrogen generation pressure is 5 to 300 atm. Exhaust pressure is atmospheric pressure to 0.01 atm.
    Type: Application
    Filed: September 10, 2010
    Publication date: January 13, 2011
    Inventors: Takao Ishikawa, Hiroshi Kanemoto, Masafumi Noujima, Takeyuki Itabashi
  • Patent number: 7824625
    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: Grant
    Filed: February 18, 2009
    Date of Patent: November 2, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Masafumi Nojima, Akiyoshi Komura, Takao Ishikawa, Kenichi Souma, Masatoshi Sugimasa, Naoki Yoshimoto
  • Publication number: 20100266929
    Abstract: An object of the invention is to provide a catalyst of high activity having a dehydrogenation function or hydrogenation function, to provide a fuel cell with a high output density, and further to provide a hydrogen storage/supply device, with which hydrogen is stored or supplied in a high efficient manner. In order to achieve the above object, a porous oxide film of a metal oxide is formed on a hydrogen separation membrane surface of a catalyst having a dehydrogenation function or hydrogenation function and the hydrogen separation membrane is arranged so as to be partially exposed to at the interface with the porous oxide film. In doing so, hydrogen generated on the catalyst can quickly diffuse into the hydrogen separation membrane thereby efficiently releasing the hydrogen to outside of the reaction system. Eventually, the reaction efficiency can be improved.
    Type: Application
    Filed: December 20, 2006
    Publication date: October 21, 2010
    Inventors: Hiroshi Kanemoto, Takao Ishikawa, Masafumi Noujima, Takeyuki Itabashi
  • Publication number: 20100266926
    Abstract: A proton-conductive composite electrolyte membrane, for a fuel cell, comprises a metal-oxide hydrate with proton conductivity and organic macromolecules in which an intermediate layer is formed between the metal-oxide hydrate and the first organic macromolecular electrolyte. The intermediate layer can enhance the adhesion at an interface between the metal-oxide hydrate and the organic macromolecule, and thereby the amount of methanol that penetrates along the interface can be reduced. Accordingly, the composite electrolyte membrane has both high proton conductivity and low methanol permeability, and a membrane electrode assembly that comprises the composite electrolyte membrane can produce a high output.
    Type: Application
    Filed: October 1, 2007
    Publication date: October 21, 2010
    Inventors: Takayuki Hirashige, Takao Ishikawa
  • Patent number: D626669
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: November 2, 2010
    Assignee: Honda Motor Co., Ltd.
    Inventor: Takao Ishikawa