Patents by Inventor Akira Yamashita

Akira Yamashita 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: 9163551
    Abstract: The character or nature of cooling water is correctly estimated. A cooling system for an internal combustion engine includes a radiator, a bypass passage which bypasses the radiator, a thermostat, and a control unit which changes a valve opening temperature of the thermostat. The cooling system for the internal combustion engine further includes an estimating unit which forbids valve opening of the thermostat and which estimates the character of the cooling water on the basis of temperature transition of the cooling water provided in this state.
    Type: Grant
    Filed: February 7, 2011
    Date of Patent: October 20, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koichiro Nakatani, Akira Yamashita, Takenori Saoda
  • Publication number: 20150198261
    Abstract: A valve device includes: a body including a gas passage through which gas flows and an accommodation recess that communicates with the gas passage; a valve mechanism that controls flow of the gas flowing through the gas passage; and a cover fixed to the body such that the cover covers the accommodation recess. In the valve device, the cover includes a cover recess that opens toward the accommodation recess, and the valve mechanism is assembled to the body such that the valve mechanism is accommodated in the accommodation recess with a portion of the valve mechanism protruding from the accommodation recess and the portion of the valve mechanism is accommodated in the cover recess.
    Type: Application
    Filed: January 9, 2015
    Publication date: July 16, 2015
    Inventors: Toshikatsu KUBO, Akira NAKANO, Shusuke INAGI, Akira YAMASHITA
  • Publication number: 20150184567
    Abstract: An engine system includes: an exhaust path through which an exhaust gas of an engine passes; an urea injection valve that injects urea into the exhaust path; a catalyst that is provided in the exhaust path on a downstream of the urea injection valve, and that selectively reduces NOx by using ammonia acting as a reducing agent, the ammonia being generated by hydrolyzing injected urea from the urea injection valve; a heating portion that is capable of heating the catalyst and the injected urea; and a control unit that performs first control, in which the urea injection valve injects urea, the heating portion heats the injected urea to generate ammonia, or second control, in which the heating portion increases a temperature of the catalyst to a temperature at which NOx can be reduced, on a basis of an amount of ammonia adsorbed on the catalyst.
    Type: Application
    Filed: June 7, 2012
    Publication date: July 2, 2015
    Inventors: Akira Yamashita, Koichiro Nakatani
  • Publication number: 20150137022
    Abstract: A valve main unit, in which a high pressure valve is to be provided, includes a channel for hydrogen gas. An internal surface of the channel is constituted by an oxidation layer formed by performing anodizing on an aluminum-based alloy. The oxidation layer of the channel is formed by performing the anodizing under a condition in which the oxidation layer with a thickness of 8 ?m or less is formed at an external surface of the valve main unit, the external surface having an opening communicating with the channel.
    Type: Application
    Filed: November 14, 2014
    Publication date: May 21, 2015
    Inventors: Kazuhisa SUGIYAMA, Koji NISHI, Yutaka INADA, Eiji OKAWACHI, Akira YAMASHITA
  • Patent number: 8985141
    Abstract: In order to achieve seal durability and bring about a damping action for a piston-type pressure regulating valve, a pressure regulating valve of the present invention is characterized by a valve moving member moving in such a manner as to cause communication or block communication between a primary chamber and a secondary chamber within a case, wherein a plurality of central members are arranged between the case and the valve moving member and the plurality of central members are taken to be different materials. It is then possible to bring about both a damping action and seal durability using the central members by providing central members of different materials.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: March 24, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tsukuo Ishitoya, Nobuo Kobayashi, Nobuyuki Ogami, Akira Yamashita
  • Patent number: 8962974
    Abstract: Means for solving the problems The thermoplastic resin composition (X1) of the present invention comprises (A1), (B1), (C1), and optionally (D1) below: 1 to 90 wt % of an isotactic polypropylene (A1); 9 to 98 wt % of a propylene/ethylene/?-olefin copolymer (B1) containing 45 to 89 mol % of propylene-derived structural units, 10 to 25 mol % of ethylene-derived structural units, and optionally, 0 to 30 mol % of C4-C20 ?-olefin-derived structural units (a1); 1 to 80 wt % of a styrene-based elastomer (C1); and 0 to 70 wt % of an ethylene/?-olefin copolymer (D1) whose density is in the range of 0.850 to 0.910 g/cm3, wherein (A1)+(B1)+(C1)+(D1)=100 wt %.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: February 24, 2015
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Hiroshi Hoya, Kiminori Noda, Norihide Inoue, Hiroshi Uehara, Eiji Shiba, Masayoshi Yamaguchi, Manabu Kawamoto, Akira Yamashita
  • Patent number: 8946543
    Abstract: Means for Solving the Problems The thermoplastic resin composition (X1) of the present invention comprises (A1), (B1), (C1), and optionally (D1) below: 1 to 90 wt % of an isotactic polypropylene (A1); 9 to 98 wt % of a propylene/ethylene/?-olefin copolymer (B1) containing 45 to 89 mol % of propylene-derived structural units, 10 to 25 mol % of ethylene-derived structural units, and optionally, 0 to 30 mol % of C4-C20 ?-olefin-derived structural units (a1); 1 to 80 wt % of a styrene-based elastomer (C1); and 0 to 70 wt % of an ethylene/?-olefin copolymer (D1) whose density is in the range of 0.850 to 0.910 g/cm3, wherein (A1)+(B1)+(C1)+(D1)=100 wt %.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: February 3, 2015
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Hiroshi Hoya, Kiminori Noda, Norihide Inoue, Hiroshi Uehara, Eiji Shiba, Masayoshi Yamaguchi, Manabu Kawamoto, Akira Yamashita
  • Publication number: 20150027421
    Abstract: A flow rate controller of an internal combustion engine includes a flow rate change section configured by including an EGR valve, a bypass valve, and a diesel throttle, as the flow rate change section capable of changing at least one of a flow rate of exhaust gas that is recirculated to an intake system from an exhaust system of an internal combustion engine via an EGR passage and a flow rate of fresh air that flows into the internal combustion engine. In addition, an ECU is included to realize: an arrival position determining section for determining an arrival position of condensed water in the EGR passage that is moved by the EGR at least either at the time of acceleration or at the time of deceleration of the internal combustion engine; and a control section for controlling the flow rate change section on the basis of the arrival position determined by the arrival position determining section.
    Type: Application
    Filed: April 12, 2012
    Publication date: January 29, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akira Yamashita, Kazuhiro Mori, Koichiro Nakatani, Hisashi Ohki
  • Patent number: 8931754
    Abstract: A safety valve includes a cylinder having an open end and a plug for closing the open end with a hermetic seal. The interior of the cylinder communicates with a high-pressure gas passage. The cylinder is deformed as a function of gas pressure in the high-pressure gas passage to widen the open end. This allows gas in the high-pressure gas passage to escape and thus prevents the gas pressure from increasing beyond an acceptable level.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: January 13, 2015
    Assignees: Jtekt Corporation, Toyooki Kogyo Co., Ltd.
    Inventors: Yoshinori Imoto, Hiroaki Suzuki, Kazushi Numazaki, Chihiro Uchimura, Akira Yamashita, Tsukuo Ishitoya, Noritaka Watanabe
  • Patent number: 8915519
    Abstract: An airbag is manufactured as follows. In a first joining step, peripheral portions of structural fabric portions that are located closer to the main body fabric portions at the installation are joined to the main body fabric portions in a spread state. In a second joining step, a part that is not overlaid onto the structural fabric portions is joined to the main body fabric portions, and a part that is overlaid onto the structural fabric portions is joined only to the structural fabric portions. In a third joining step, peripheral portions of the structural fabric portions that are separated away from the main body fabric portions at the installation are joined to each other.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: December 23, 2014
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Masashi Hotta, Yuji Sato, Kensaku Honda, Yoshiaki Goto, Akira Yamashita, Takashi Iida
  • Publication number: 20140367924
    Abstract: A seal body that is used for gas seal includes a seal main body in which a recessed groove is formed by arranging a pair of lips so that the lips face each other; an elastic body that is inserted in the recessed groove and expands the lips; and a rigid body that is installed in the elastic body, and restricts deformation of the elastic body, due to narrowing of the recessed groove, within an elastic deformation range.
    Type: Application
    Filed: June 11, 2014
    Publication date: December 18, 2014
    Inventors: Chihiro UCHIMURA, Sogo GOTO, Akira YAMASHITA, Shusuke INAGI
  • Patent number: 8801029
    Abstract: An airbag includes a high pressure expansion chamber, a low pressure expansion chamber, and a communication passage, which connects the high pressure expansion chamber and the low pressure expansion chamber to each other. A gas supply port, which supplies inflation gas into the airbag, is located inside the low pressure expansion chamber to discharge the inflation gas toward the inside of the communication passage. The communication passage extends from the edge of a communication port, which connects the high pressure expansion chamber and the low pressure expansion chamber, toward the inside of the high pressure expansion chamber. At deployment and inflation of the airbag, the communication passage is located between a seam formed at the outer periphery of the base fabric sheet of the airbag and the gas supply port.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: August 12, 2014
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Masashi Hotta, Yuji Sato, Kensaku Honda, Yoshiaki Goto, Takashi Iida, Akira Yamashita, Masaaki Okuhara
  • Publication number: 20140208567
    Abstract: An airbag is manufactured as follows. In a first joining step, peripheral portions of structural fabric portions that are located closer to the main body fabric portions at the installation are joined to the main body fabric portions in a spread state. In a second joining step, a part that is not overlaid onto the structural fabric portions is joined to the main body fabric portions, and a part that is overlaid onto the structural fabric portions is joined only to the structural portions. In a third joining step, peripheral portions of the structural fabric portions that are separated away from the main body fabric portions at the installation are joined to each other.
    Type: Application
    Filed: January 17, 2014
    Publication date: July 31, 2014
    Applicant: TOYODA GOSEI CO., LTD.
    Inventors: Masashi HOTTA, Yuji SATO, Kensaku HONDA, Yoshiaki GOTO, Akira YAMASHITA, Takashi IIDA
  • Patent number: 8770221
    Abstract: In order to achieve seal durability and bring about a damping action for a piston-type pressure regulating valve, a pressure regulating valve of the present invention is characterized by a valve moving member moving in such a manner as to cause communication or block communication between a primary chamber and a secondary chamber within a case, wherein a plurality of central members are arranged between the case and the valve moving member and the plurality of central members are taken to be different materials. It is then possible to bring about both a damping action and seal durability using the central members by providing central members of different materials.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: July 8, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tsukuo Ishitoya, Nobuo Kobayashi, Nobuyuki Ogami, Akira Yamashita
  • Patent number: 8757657
    Abstract: A lateral partition is formed by a pair of structural fabric portions, each of which has a first peripheral portion and a second peripheral portion. The first peripheral portions of the structural fabric portions are each joined to one of main body fabric portions. The second peripheral portions of the structural fabric portions are joined to each other by a joint portion provided along the second peripheral portions. An inner tube extends over the upper inflation chamber and the lower inflation chamber, while intersecting with the lateral partition. A rear peripheral portion of a part of the inner tube is joined to the main body fabric portions by a part of the peripheral joint portion, and a front peripheral portion of the part is joined to the structural fabric portions by the joint portion.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: June 24, 2014
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Masashi Hotta, Yuji Sato, Kensaku Honda, Yoshiaki Goto, Eiji Sato, Takashi Iida, Akira Yamashita, Takuya Hiraiwa
  • Publication number: 20140130753
    Abstract: The present invention is intended to provide a technique which makes effective use of a phase transition temperature zone of cooling water by controlling a control valve for changing the temperature of the cooling water in an appropriate manner. The present invention resides in a cooling water temperature control apparatus for an internal combustion engine in which cooling water is caused to circulate, said cooling water having variable specific heat, said apparatus comprising: a received heat amount calculation unit configured to calculate an amount of received heat which is received by said cooling water, a control valve that is controlled to open and close according to a command so as to change a circulation route or an amount of circulation of said cooling water and to change the temperature of said cooling water, and a control unit configured to control said control valve based on the amount of received heat which is calculated by said received heat amount calculation unit.
    Type: Application
    Filed: April 28, 2011
    Publication date: May 15, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi Koyama, Koichiro Nakatani, Akira Yamashita
  • Patent number: 8684399
    Abstract: A gas generator includes an inflator and a retainer. The retainer includes a holding portion, which partially covers the inflator. The inflator has an attaching protrusion for determining the position relative to the retainer. The retainer includes an engagement base and a tongue piece. The tongue piece extends in an axial direction of the inflator and from a position separated from the engagement base in the circumferential direction of the holding portion. The engagement base and the tongue piece each have an engagement portion. The engagement portions face each other to form an engagement space therebetween, into which the attaching protrusion enters. The engagement space has an inlet the width of which is less than the size of the positioning protrusion. When the inflator causes the positioning protrusion to increase the width of the inlet, the tongue piece is elastically deformed about a basal end of the tongue piece.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: April 1, 2014
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Kensaku Honda, Yuji Sato, Takashi Iida, Yoshiaki Goto, Masashi Hotta, Eiji Sato, Akira Yamashita, Yoshihiko Hishiki, Yoshinari Takei, Kikuyo Izoe, Naoki Nimi, Toshihiro Hosoi
  • Publication number: 20140084570
    Abstract: An airbag apparatus includes an airbag, a retainer secured to the airbag, and an elongated inflator attached to the retainer. The inflator discharges gas for inflating the airbag. The retainer includes an attaching protrusion, which protrudes in a direction intersecting an axis of the inflator and secures the retainer to a vehicle together with the airbag. The inflator includes an attaching protrusion, which protrudes in the direction intersecting the axis and secures the inflator to the vehicle together with the retainer.
    Type: Application
    Filed: August 22, 2013
    Publication date: March 27, 2014
    Applicant: TOYODA GOSEI CO., LTD.
    Inventors: Masashi HOTTA, Yuji SATO, Kensaku HONDA, Yoshiaki GOTO, Akira YAMASHITA
  • Patent number: 8637177
    Abstract: The electrochemical device of the present invention comprises a positive electrode (2), a negative electrode (1), a nonaqueous electrolyte and a separator (3). The separator (3) includes a porous layer (I) composed of a microporous film composed predominantly of a thermoplastic resin and a porous layer (II) containing a filler having a heat-resistant temperature of 150° C. or higher as the main component. The negative electrode (1) contains graphite having an R value of 0.1 to 0.5 and d002 of 0.338 nm or less as a negative electrode active material, where the R value is a ratio of a peak intensity at 1360 cm?1 to a peak intensity at 1580 cm?1 in an argon ion laser Raman spectrum and the d002 is a lattice spacing between 002 planes. The ratio of the graphite to the negative electrode active material is 30 mass % or more, and the nonaqueous electrolyte contains vinyl ethylene carbonate or a derivative thereof, or a dinitrile compound or acid anhydride.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: January 28, 2014
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Hirokazu Nomura, Akira Yamashita, Fusaji Kita
  • Publication number: 20140008903
    Abstract: An airbag includes a high pressure expansion chamber, a low pressure expansion chamber, and a communication passage, which connects the high pressure expansion chamber and the low pressure expansion chamber to each other. A gas supply port, which supplies inflation gas into the airbag, is located inside the low pressure expansion chamber to discharge the inflation gas toward the inside of the communication passage. The communication passage extends from the edge of a communication port, which connects the high pressure expansion chamber and the low pressure expansion chamber, toward the inside of the high pressure expansion chamber. At deployment and inflation of the airbag, the communication passage is located between a seam formed at the outer periphery of the base fabric sheet of the airbag and the gas supply port.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 9, 2014
    Inventors: Masashi HOTTA, Yuji SATO, Kensaku HONDA, Yoshiaki GOTO, Takashi IIDA, Akira YAMASHITA, Masaaki OKUHARA