Patents by Inventor Tsutomu Murakami

Tsutomu Murakami 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).

  • Publication number: 20140286769
    Abstract: A boss for attachment of an auxiliary device to a fan case of an engine is comprised of a pedestal including a plurality of accumulated layers of reinforcement fibers and a matrix combining the reinforcement fibers together, the pedestal comprising a bottom face in a shape capable of being in close contact with an outer periphery of the fan case; and an embedded body embedded in the pedestal and including a combining structure combinable with the auxiliary device.
    Type: Application
    Filed: June 4, 2014
    Publication date: September 25, 2014
    Applicants: IHI Corporation, IHI AEROSPACE CO., LTD.
    Inventors: Osamu OTSU, Yu SHIGENARI, Takashi HARADA, Tsutomu MURAKAMI
  • Patent number: 8733319
    Abstract: When control to maintain a constant engine rotation number is executed, the electronic control unit constantly monitors an error of detected throttle position data with respect to a desired throttle control value, executes a first stage of a failure judgment method to judge that a failure of a throttle control system has occurred in a case where an absolute value of the error exceeds a predetermined threshold value continuously for a predetermined time or longer, and executes a second stage of the failure judgment method to judge that a serious failure has occurred in the system in a case where a detected engine rotation number exceeds a predetermined rotation number continuously for a predetermined time or longer, to perform predetermined operations in accordance with the judgment results.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: May 27, 2014
    Assignee: Nikki Co., Ltd.
    Inventors: Buso Takigawa, Umerujan Sawut, Tohti Gheyret, Norichika Kojima, Tsutomu Murakami
  • Patent number: 8715556
    Abstract: A gas turbine engine blade for aircraft which has a 3-dimensional blade surface shape twisted around a center line at an angle of 45 degrees or more and 70 degrees or less, wherein the aforementioned blade is provided with multiple composite material prepregs which contain reinforced fiber and which are integrally molded after being laminated in the thickness direction, and the aforementioned reinforced fiber runs continuously without interruption within each layer of the aforementioned composite material prepregs.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: May 6, 2014
    Assignees: IHI Corporation, IHI Aerospace Co., Ltd.
    Inventors: Tsutomu Murakami, Hideo Morita, Takahiro Ogi, Ikuo Okumura, Katsuyoshi Moriya
  • Publication number: 20120219408
    Abstract: A method for manufacturing a cylindrical structure having an axial direction includes: winding a fabric around a mandrel in a circumferential direction that is perpendicular to the axial direction, the fabric containing first fibers oriented in a first direction intersecting the circumferential direction; winding a roving into a helical shape around the mandrel, the roving containing second fibers oriented in a longitudinal direction of the roving; and joining the fabric and the roving together by using a resin.
    Type: Application
    Filed: November 5, 2010
    Publication date: August 30, 2012
    Applicants: IHI AEROSPACE CO., LTD., IHI CORPORATION
    Inventors: Takashi Harada, Yu Shigenari, Masayori Miyashita, Tsutomu Murakami
  • Publication number: 20120219741
    Abstract: A method for manufacturing a cylindrical structure having an axial direction includes: winding a first layer around a mandrel; winding a second layer around the mandrel; winding a third layer around the mandrel; and joining the layers together by using a resin. Each layer includes a plurality of fabrics each made of fibers. The fabrics of each layer form a join line extending in a circumferential direction with edges of the fabrics in contact with each other. The join lines of the first, second and third layers are displaced in the axial direction from one another.
    Type: Application
    Filed: November 5, 2010
    Publication date: August 30, 2012
    Applicants: IHI Aerospace Co., Ltd., IHI Corporation
    Inventors: Takashi Harada, Yu Shigenari, Masayori Miyashita, Tsutomu Murakami, Agamu Tanaka
  • Publication number: 20120150416
    Abstract: Even if the engine structure is not capable of continuous operation in the vicinity of stoichiometric air-fuel ratio, this engine is in the stoichiometric combustion region when condition such as low load and stable engine rotation is met, and the feedback control using the O2 sensor, although temporary, becomes possible. Therefore, the air-fuel ratio control system performs this feedback, and derives and sets the constant value for correction to attain the air-fuel ratio suited to the engine. Thereafter, the optimal air-fuel ratio is controlled at the normal control mode just by correcting the fuel injection quantity using the constant value.
    Type: Application
    Filed: July 15, 2011
    Publication date: June 14, 2012
    Applicant: NIKKI CO., LTD.
    Inventor: Tsutomu Murakami
  • Publication number: 20120000442
    Abstract: When control to maintain a constant engine rotation number is executed, the electronic control unit constantly monitors an error of detected throttle position data with respect to a desired throttle control value, executes a first stage of a failure judgment method to judge that a failure of a throttle control system has occurred in a case where an absolute value of the error exceeds a predetermined threshold value continuously for a predetermined time or longer, and executes a second stage of the failure judgment method to judge that a serious failure has occurred in the system in a case where a detected engine rotation number exceeds a predetermined rotation number continuously for a predetermined time or longer, to perform predetermined operations in accordance with the judgment results.
    Type: Application
    Filed: April 28, 2011
    Publication date: January 5, 2012
    Applicant: NIKKI CO., LTD.
    Inventors: Buso Takigawa, Umerujan Sawut, Tohti Gheyret, Norichika Kojima, Tsutomu Murakami
  • Patent number: 8052861
    Abstract: The present invention relates to a method and apparatus for partial etching or pattern etching using an electrolysis reaction, wherein, conventionally, there was the problem that an etching line could not be finely formed on a cell edge because of apparatus problems concerning alignment accuracy. The present invention provides a method and apparatus with which fine line etching is possible and which can form a line on a cell edge. Provided is a an electrolytic etching method of a substrate which is formed having a subject etching layer on a surface, having the steps of providing a fixed gap from a substrate end surface which is external to an end surface of the substrate for placing a working part of a working electrode and passing current between the substrate and the working electrode.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: November 8, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsutomu Murakami, Koji Tsuzuki
  • Publication number: 20110020130
    Abstract: A gas turbine engine blade for aircraft which has a 3-dimensional blade surface shape twisted around a center line at an angle of 45 degrees or more and 70 degrees or less, wherein the aforementioned blade is provided with multiple composite material prepregs which contain reinforced fiber and which are integrally molded after being laminated in the thickness direction, and the aforementioned reinforced fiber runs continuously without interruption within each layer of the aforementioned composite material prepregs.
    Type: Application
    Filed: March 27, 2009
    Publication date: January 27, 2011
    Inventors: Tsutomu Murakami, Hideo Morita, Takahiro Ogi, Ikuo Okumura, Katsuyoshi Moriya
  • Publication number: 20100140104
    Abstract: The present invention relates to a method and apparatus for partial etching or pattern etching using an electrolysis reaction, wherein, conventionally, there was the problem that an etching line could not be finely formed on a cell edge because of apparatus problems concerning alignment accuracy. The present invention provides a method and apparatus with which fine line etching is possible and which can form a line on a cell edge. Provided is a an electrolytic etching method of a substrate which is formed having a subject etching layer on a surface, having the steps of providing a fixed gap from a substrate end surface which is external to an end surface of the substrate for placing a working part of a working electrode and passing current between the substrate and the working electrode.
    Type: Application
    Filed: February 17, 2010
    Publication date: June 10, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tsutomu Murakami, Koji Tsuzuki
  • Patent number: 7691241
    Abstract: The present invention relates to a method and apparatus for partial etching or pattern etching using an electrolysis reaction, wherein, conventionally, there was the problem that an etching line could not be finely formed on a cell edge because of apparatus problems concerning alignment accuracy. The present invention provides a method and apparatus with which fine line etching is possible and which can form a line on a cell edge. Provided is a an electrolytic etching method of a substrate which is formed having a subject etching layer on a surface, having the steps of providing a fixed gap from a substrate end surface which is external to an end surface of the substrate for placing a working part of a working electrode and passing current between the substrate and the working electrode.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: April 6, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsutomu Murakami, Koji Tsuzuki
  • Patent number: 7484496
    Abstract: A throttle apparatus embedding an electronic control unit in which a circuit board of the electronic control unit is embedded within a throttle body and a connector for connecting to an external portion connected to a terminal provided in the circuit board protrudes from an outer wall of the throttle body in a direction approximately along a terminal side of the circuit board surface from one side line of the circuit board, wherein the circuit board is storable within the throttle body by selecting an optional mounting direction from at least two or more directions having different angles on the same plane around a center portion of the circuit board, and an insertion portion capable of protruding the connector to an external portion through an outer wall of the throttle body is provided at each of corresponding positions of the outer wall.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: February 3, 2009
    Assignee: Nikki Co., Ltd.
    Inventor: Tsutomu Murakami
  • Publication number: 20080276908
    Abstract: The present invention provides a throttle apparatus having an electronic control means built-in which uses an engine fuel supply system having a carburetor specification and is arranged for constructing a fuel injection system in accordance with an electronic control.
    Type: Application
    Filed: December 12, 2007
    Publication date: November 13, 2008
    Applicant: NIKKI CO., LTD.
    Inventor: Tsutomu Murakami
  • Publication number: 20080271783
    Abstract: There is provided a photovoltaic device in which at least one pin-junction is formed in a thin film semiconductor deposited on a substrate, the substrate including: a base including polycrystalline silicon; and a polycrystalline silicon layer formed on the base by liquid phase growth, in which at least a part of a surface of the polycrystalline silicon layer has unevenness composed of facet surfaces. The photovoltaic device prevents a reduction in photoelectric conversion efficiency due to the absence of preferable unevenness, an increase in cost due to the use of an expensive material, and a reduction in throughput in the photovoltaic device, and has a preferable characteristic and high productivity.
    Type: Application
    Filed: July 8, 2008
    Publication date: November 6, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tsutomu Murakami, Shoji Nishida
  • Publication number: 20080223337
    Abstract: A throttle apparatus embedding an electronic control unit in which a circuit board of the electronic control unit is embedded within a throttle body and a connector for connecting to an external portion connected to a terminal provided in the circuit board protrudes from an outer wall of the throttle body in a direction approximately along a terminal side of the circuit board surface from one side line of the circuit board, wherein the circuit board is storable within the throttle body by selecting an optional mounting direction from at least two or more directions having different angles on the same plane around a center portion of the circuit board, and an insertion portion capable of protruding the connector to an external portion through an outer wall of the throttle body is provided at each of corresponding positions of the outer wall.
    Type: Application
    Filed: September 11, 2007
    Publication date: September 18, 2008
    Applicant: NIKKI CO., LTD.
    Inventor: Tsutomu Murakami
  • Patent number: 7287514
    Abstract: The invention provides a fuel supply control method and apparatus in which an air fuel ratio does not become rich even if an acceleration and deceleration operation is repeated for a short time in the case that a time lag with respect to a response from a detection of an acceleration state to a fuel amount increase is large, and troubles such as a black smoke generation from an exhaust pipe, an engine stop and the like are not generated. In a fuel supply control method of an internal combustion chamber for increasing an amount of a fuel for acceleration so as to inject from an injection apparatus, at a time of detecting a transient state at an accelerating time or the like on the basis of data such as an opening degree of a throttle valve and/or an air suction pressure, the method inhibits the fuel amount increase for acceleration on the basis of the detection of the transient state, if a total amount of an injection fuel per a unit time is more than a fixed value.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: October 30, 2007
    Assignee: Nikki Co., Ltd.
    Inventors: Masao Kakinuma, Tsutomu Murakami
  • Patent number: 7243638
    Abstract: An injection timing for supplying a fuel by one injection per two rotations to a single-cylinder four-cycle engine of a fixed spark advance ignition system is decided on the basis of a simple system. With respect to ignition signals A1, B1, A2, B2, . . . generated every one rotation of the engine, an intake pipe pressure lowering state exists in one ignition signal cycle A1-B2, and the intake pipe pressure lowering state does not exist in the next ignition signal cycle B2-A2. The signal B1 corresponds to a terminal phase of an exhaust stroke and the signal A2 corresponds to a terminal phase of a compression stroke if these two conditions are established, and an injection timing is decided on the basis of the determination in such a manner that the fuel injection burnt by the ignition of A2 is executed at one time during two rotations.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: July 17, 2007
    Assignee: Nikki Co. , Ltd.
    Inventors: Tsutomu Murakami, Naohiro Ikeda
  • Publication number: 20070145165
    Abstract: The invention provides an electromagnetic fuel injection valve which is operated extremely normally, is excellent in a durability, can always obtain a stable injection amount, and can reduce an influence by a fuel, an atmospheric temperature and the like.
    Type: Application
    Filed: January 23, 2006
    Publication date: June 28, 2007
    Inventors: Tsutomu Murakami, Kousuke Ohnishi, Gensaku Konagai
  • Publication number: 20070056566
    Abstract: In a fuel injection control method of an engine, an electronic control unit calculates a pressure integrated value for one combustion cycle by detecting a combustion cycle and continuously detecting a suction air pipe pressure and determines that the engine is under an accelerated state such that a pressure difference determined by comparing the pressure integrated value with the pressure integrated value at the preceding combustion cycle becomes equal to or more than a predetermined acceleration determining reference value, thereby increasing a fuel amount. The electronic control unit determines that the engine is under the accelerated state at a particular time when the difference between the pressure integrated value and the atmospheric pressure becomes equal to or less than a reference value and a pressure difference integrated value obtained by integrating each of the pressure differences within an integrating period becomes equal to or more than another reference value.
    Type: Application
    Filed: February 21, 2006
    Publication date: March 15, 2007
    Inventors: Naoaki Yanagisawa, Tsutomu Murakami
  • Patent number: 7185637
    Abstract: In a fuel injection control method of an engine, an electronic control unit calculates a pressure integrated value for one combustion cycle by detecting a combustion cycle and continuously detecting a suction air pipe pressure and determines that the engine is under an accelerated state such that a pressure difference determined by comparing the pressure integrated value with the pressure integrated value at the preceding combustion cycle becomes equal to or more than a predetermined acceleration determining reference value, thereby increasing a fuel amount. The electronic control unit determines that the engine is under the accelerated state at a particular time when the difference between the pressure integrated value and the atmospheric pressure becomes equal to or less than a reference value and a pressure difference integrated value obtained by integrating each of the pressure differences within an integrating period becomes equal to or more than another reference value.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: March 6, 2007
    Assignee: Nikki Co., Ltd.
    Inventors: Naoaki Yanagisawa, Tsutomu Murakami