Patents by Inventor Kenji Hattori

Kenji Hattori 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: 20190233987
    Abstract: A water injection apparatus for a water jet loom, includes a weft insertion nozzle for weft insertion of a weft yarn by injection water, a weft insertion pump pumping water into the weft insertion nozzle, a water storage tank storing water introduced into the weft insertion pump, and a suction pipe passing water from the water storage tank into the weft insertion pump. The water injection apparatus includes an auxiliary water supply unit that is provided separately from the weft insertion pump and can supply water to the suction pipe. At least when the weft insertion pump sucks water, the auxiliary water supply unit supplies water to the suction pipe.
    Type: Application
    Filed: January 3, 2019
    Publication date: August 1, 2019
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yasushi YAMAUCHI, Koichi TSUJIMOTO, Kouichi HATTORI, Kenji SUMIYA, Taijirou OKUDA
  • Publication number: 20190237942
    Abstract: A spark plug includes: a mounting bracket; a center electrode having a first end portion exposed and extended from first end portion of the mounting bracket; a slant-shape ground electrode that has first end side joined to the first end portion of the mounting bracket, has a surface of the second end side extended to be opposed to the first end portion of the center electrode, and has an extension direction inclined with respect to the center electrode; a convex portion protruding from a base material of the ground electrode on the surface thereof toward the center electrode, inclines toward the center electrode with respect to a protrusion direction, and has a convex portion opposed surface opposed to an end surface of the center electrode; and a precious metal layer formed on at least the convex portion opposed surface out of surfaces of the convex portion.
    Type: Application
    Filed: April 11, 2019
    Publication date: August 1, 2019
    Inventors: Kenji HATTORI, Teiji ISHINADA, Ryuichi OHNO
  • Publication number: 20190237941
    Abstract: A spark plug includes: a cylindrical mounting bracket attachable to an internal combustion engine; a center electrode that is held by the mounting bracket in an insulated manner and has a first end portion exposed and extended from a first end portion of the mounting bracket; a ground electrode that has a first end side joined to the first end portion of the mounting bracket and has a surface of the second end side extended to be opposed to the first end portion of the center electrode; a convex portion that protrudes from a base material of the ground electrode on the surface of the ground electrode toward the center electrode, has a surface protruded outward, and has surfaces without corners; and a precious metal layer formed on the surface of the convex portion.
    Type: Application
    Filed: April 11, 2019
    Publication date: August 1, 2019
    Inventors: Kenji HATTORI, Ryuichi OHNO
  • Patent number: 10344811
    Abstract: A vehicle controlling device has a frictional engagement element provided between a drive motor and a driving wheel; a shifting unit capable of selecting a travel range or a non-travel range; first obtaining unit configured to, during selection of the travel range, obtain a first parameter including at least a first motor torque value that is a torque value of the drive motor; second obtaining unit configured to, during selection of the non-travel range, obtain a second parameter including at least a second motor torque value that is a torque value of the drive motor; and operating unit configured to, on the basis of the first and second parameters, calculate a zero point hydraulic pressure command value at which the frictional engagement element starts to generate a torque capacity. It is therefore possible to detect a zero point of a clutch between the drive motor and the driving wheel.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: July 9, 2019
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventors: Kenji Hattori, Kouichi Kotsuji
  • Patent number: 10323745
    Abstract: When a power transmission path of a power transmission system is set to a second power transmission path, a continuously variable transmission is controlled at a speed ratio (?) that provides a higher vehicle speed in the case where an input shaft angular acceleration (d?i/dt) is small than in the case where the input shaft angular acceleration (d?i/dt) is large. Therefore, it is possible to control the speed ratio (?) of the continuously variable transmission to a speed ratio (?) that reflects an inertial loss (Tli) of the continuously variable transmission. The inertial loss (Tli) changes with the input shaft angular acceleration (d?i/dt). Thus, in a vehicle in which the continuously variable transmission and a gear mechanism are provided in parallel with each other between an input shaft and an output shaft, it is possible to appropriately reduce a loss of the idling continuously variable transmission.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: June 18, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daisuke Inoue, Kunio Hattori, Hiroki Kondo, Kenji Matsuo, Mitsuhiro Fukao
  • Patent number: 10305258
    Abstract: In an ignition coil for an internal combustion engine, a spark plug is incorporated which has an insulator including an insulator head that has no corrugation. The ignition coil has a coil body part generating high voltage and a joint part, which holds therein a conducting member electrically connecting the coil body part and a spark plug. The joint part has a plug cap into which the insulator head of the spark plug is inserted and which is formed of an elastic member having a cylindrical shape. The plug cap has a close-contact part whose inner peripheral surface is closely brought into contact with an outer peripheral surface of the insulator. The close-contact part has a tip end-side close-contact part positioned at a tip end side with respect to a middle position in an axial direction, and a base end-side close-contact part positioned at a base end side with respect to the middle position.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: May 28, 2019
    Assignee: DENSO CORPORATION
    Inventors: Kenji Hattori, Kaori Doi, Masamichi Shibata, Tetsuya Miwa
  • Publication number: 20190154113
    Abstract: A transfer belt wound between a primary pulley and a secondary pulley of a continuously variable transmission, the transfer belt including: a plurality of elements, each of which has a body that includes a saddle surface and a pair of pillars that extend toward a radially outer side of the transfer belt from both sides of the saddle surface in a width direction; and a bind ring that binds the plurality of elements annularly with an inner peripheral surface of the bind ring contacting the saddle surface of each of the plurality of elements.
    Type: Application
    Filed: February 7, 2017
    Publication date: May 23, 2019
    Applicant: AISIN AW CO., LTD.
    Inventors: Yuki SATO, Kenji KAWANO, Akira OCHI, Ryo NAKAMURA, Takayuki MIYAKE, Junichi TOKUNAGA, Masashi HATTORI
  • Publication number: 20190154114
    Abstract: A power transfer belt, where a peripheral length difference between an inner peripheral length of the retainer ring and an outer peripheral length of the outermost ring material is larger than a peripheral length difference between an outer peripheral length of the ring material on an inner side, of two of the ring materials which overlap each other, and an inner peripheral length of the ring material on an outer side,
    Type: Application
    Filed: November 11, 2016
    Publication date: May 23, 2019
    Applicant: AISIN AW CO., LTD.
    Inventors: Akira OCHI, Yuki SATO, Ryo NAKAMURA, Kenji KAWANO, Masashi HATTORI, Junichi TOKUNAGA
  • Publication number: 20190154112
    Abstract: A power transfer belt that includes a plurality of elements; and a ring that binds the plurality of elements annularly, wherein: the power transfer belt is wound in V grooves of a pair of pulleys of a continuously variable transmission to transfer power, the elements each have a saddle surface that contacts the ring, a pair of pillars that extend from both sides of the saddle surface in a width direction in a direction from an inner peripheral side toward an outer peripheral side of the ring, and a pair of side surfaces formed so as to extend away from each other from the inner peripheral side toward the outer peripheral side of the ring.
    Type: Application
    Filed: November 24, 2016
    Publication date: May 23, 2019
    Applicant: AISIN AW CO., LTD.
    Inventors: Akira OCHI, Kenji KAWANO, Yuki SATO, Ryo NAKAMURA, Junichi TOKUNAGA, Masashi HATTORI
  • Patent number: 10291000
    Abstract: An ignition apparatus includes a spark plug and an ignition coil. The spark plug has a plug terminal protruding proximalward from an insulator. The ignition coil includes a coil main body, which includes a primary coil and a secondary coil, and a helical spring that electrically connects the secondary coil and the plug terminal. The plug terminal is made of a material that is both electrically conductive and magnetic. The plug terminal includes a terminal main body, which has an outer diameter greater than an inner diameter of the spring, and a terminal extension portion that has an outer diameter less than the inner diameter of the spring and extends proximalward from the terminal main body. A distal end portion of the spring abuts the terminal main body. The terminal extension portion is inserted and arranged in the spring. Between an outer circumferential surface of the terminal extension portion and an inner circumferential surface of the spring, there is interposed an insulating member.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: May 14, 2019
    Assignee: DENSO CORPORATION
    Inventors: Akimitsu Sugiura, Kenji Hattori, Shunichi Takeda, Kaori Doi, Ryota Wakasugi
  • Patent number: 10132287
    Abstract: In an ignition control system, a primary current control unit performs discharge generation control one or more times during a single combustion cycle. The discharge generation control allows a spark plug to generate a discharge spark. A parameter calculating unit successively calculates a parameter correlated with energy of a discharge spark. An energy density calculating unit successively calculates energy density that is energy per unit length of the discharge spark. When the energy density is greater than a predetermined value during a predetermined period after a primary current is interrupted during a single combustion cycle, an integrated value calculating unit calculates an integrated value by integrating the parameter during the predetermined period. The primary current control unit performs the discharge generation control again when the integrated value calculated by the integrated value calculating unit is less than a predetermined determination threshold.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: November 20, 2018
    Assignee: DENSO CORPORATION
    Inventors: Kenji Hattori, Ippei Funato
  • Patent number: 10077584
    Abstract: An actuator includes an electric motor, a power transmission mechanism having a worm provided in a motor rotating shaft of the electric motor and a worm wheel engaging the worm, a drive member connected to the motor rotating shaft through the power transmission mechanism and displaced according to a rotation of the motor rotating shaft, a control device determining a rotational range of the motor rotating shaft between an initial position and a driven position, and an urging device provided in the motor rotating shaft and urging the motor rotating shaft to the initial position. In case electricity is supplied to the electric motor, the motor rotating shaft rotates to the driven position against an urging force of the urging device, and in case the electricity is not supplied to the electric motor, the motor rotating shaft is urged by the urging device to rotate to the initial position.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: September 18, 2018
    Assignee: NIFCO INC.
    Inventor: Kenji Hattori
  • Patent number: 10047853
    Abstract: Oil pressure controller for an automatic transmission produces a pre-charge shelf pressure supplied to a starter clutch by rapidly decreasing a command hydraulic pressure to the starter clutch after temporarily rapidly increasing the command hydraulic pressure, also produces a capacity adjustment pressure (Pb1 or Pb2) of the starter clutch by gradually increasing the hydraulic pressure from a decrease point of the pre-charge shelf pressure (Pa), when a selecting operation is made from N-range to D-range. By changing capacity adjustment pressure (Pb1 or Pb2) according to brake-operating/nonoperating state, capacity adjustment pressure (Pb1) in the brake-nonoperating state is set to be higher than capacity adjustment pressure (Pb2) in the brake-operating state by an offset hydraulic pressure amount. With this, when the selecting operation is made from N-range to D-range, in the brake-operating state, selection shock of the starter clutch can be reduced.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: August 14, 2018
    Assignee: JATCO Ltd
    Inventors: Kouichi Kotsuji, Kenji Hattori
  • Publication number: 20180205204
    Abstract: An ignition apparatus includes a spark plug and an ignition coil. The spark plug has a plug terminal protruding proximalward from an insulator. The ignition coil includes a coil main body, which includes a primary coil and a secondary coil, and a helical spring that electrically connects the secondary coil and the plug terminal. The plug terminal is made of a material that is both electrically conductive and magnetic. The plug terminal includes a terminal main body, which has an outer diameter greater than an inner diameter of the spring, and a terminal extension portion that has an outer diameter less than the inner diameter of the spring and extends proximalward from the terminal main body. A distal end portion of the spring abuts the terminal main body. The terminal extension portion is inserted and arranged in the spring. Between an outer circumferential surface of the terminal extension portion and an inner circumferential surface of the spring, there is interposed an insulating member.
    Type: Application
    Filed: July 5, 2016
    Publication date: July 19, 2018
    Inventors: Akimitsu SUGIURA, Kenji HATTORI, Shunichi TAKEDA, Kaori DOI, Ryota WAKASUGI
  • Publication number: 20180156182
    Abstract: In an ignition control system, a primary current control unit performs discharge generation control one or more times during a single combustion cycle. The discharge generation control allows a spark plug to generate a discharge spark. A parameter calculating unit successively calculates a parameter correlated with energy of a discharge spark. An energy density calculating unit successively calculates energy density that is energy per unit length of the discharge spark. When the energy density is greater than a predetermined value during a predetermined period after a primary current is interrupted during a single combustion cycle, an integrated value calculating unit calculates an integrated value by integrating the parameter during the predetermined period. The primary current control unit performs the discharge generation control again when the integrated value calculated by the integrated value calculating unit is less than a predetermined determination threshold.
    Type: Application
    Filed: December 4, 2017
    Publication date: June 7, 2018
    Inventors: Kenji Hattori, lppei Funato
  • Patent number: 9954344
    Abstract: A spark plug 1 includes a cylindrical housing, a cylindrical insulator, a center electrode, a terminal bracket, a ground electrode, and a resistor. The insulator is held on the inside of the housing. The center electrode 4 is held on the inside of the insulator, with a tip end being projected therefrom. The terminal bracket is held on the inside of the insulator, with a base end part and being projected therefrom. The ground electrode forms a spark discharge gap G between itself and the center electrode. The resistor contains carbon and is disposed on the inside of the insulator so as to be located between the center electrode 4 and the terminal bracket. In an axial direction X of the spark plug, the resistor has a higher carbon content in a first region positioned on a tip side, compared to a second region positioned on a base end side.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: April 24, 2018
    Assignee: DENSO CORPORATION
    Inventors: Kenji Hattori, Masamichi Shibata, Toshiya Nakamura, Yasuomi Imanaka, Hirofumi Suzuki, Hiroshi Araki, Tomoyuki Watanabe, Shin Hase
  • Publication number: 20180109079
    Abstract: In an ignition coil for an internal combustion engine, a spark plug is incorporated which has an insulator including an insulator head that has no corrugation. The ignition coil has a coil body part generating high voltage and a joint part, which holds therein a conducting member electrically connecting the coil body part and a spark plug. The joint part has a plug cap into which the insulator head of the spark plug is inserted and which is formed of an elastic member having a cylindrical shape. The plug cap has a close-contact part whose inner peripheral surface is closely brought into contact with an outer peripheral surface of the insulator. The close-contact part has a tip end-side close-contact part positioned at a tip end side with respect to a middle position in an axial direction, and a base end-side close-contact part positioned at a base end side with respect to the middle position.
    Type: Application
    Filed: April 7, 2016
    Publication date: April 19, 2018
    Inventors: Kenji HATTORI, Kaori DOI, Masamichi SHIBATA, Tetsuya MIWA
  • Patent number: 9948067
    Abstract: A spark plug for an internal combustion engine includes a cylindrical metal shell, a center electrode, and a ground electrode. The center electrode has an end portion which protrudes outside an end of the metal shell. The ground electrode is joined at an end thereof to the metal shell and has an inner surface facing the end portion of the center electrode. The ground electrode has a maximum width W meeting a relation of 1.3?W?2.0. A distance d between the center of an end surface of the center electrode and the inner surface of the ground electrode on a plane extending through the center of the center electrode perpendicular to an axis of the spark plug is selected to meet a relation of W+0.525?d?1.07W+0.66. This ensures the stability of ignitability of the spark plug.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: April 17, 2018
    Assignee: DENSO CORPORATION
    Inventors: Masamichi Shibata, Ryuichi Ohno, Kenji Hattori
  • Publication number: 20180069378
    Abstract: A spark plug for an internal combustion engine includes a cylindrical metal shell, a center electrode, and a ground electrode. The center electrode has an end portion which protrudes outside an end of the metal shell. The ground electrode is joined at an end thereof to the metal shell and has an inner surface facing the end portion of the center electrode. The ground electrode has a maximum width W meeting a relation of 1.3?W?2.0. A distance d between the center of an end surface of the center electrode and the inner surface of the ground electrode on a plane extending through the center of the center electrode perpendicular to an axis of the spark plug is selected to meet a relation of W+0.525?d?1.07 W+0.66. This ensures the stability of ignitability of the spark plug.
    Type: Application
    Filed: September 5, 2017
    Publication date: March 8, 2018
    Inventors: Masamichi SHIBATA, Ryuichi OHNO, Kenji HATTORI
  • Publication number: 20180034246
    Abstract: A spark plug 1 includes a cylindrical housing, a cylindrical insulator, a center electrode, a terminal bracket, a ground electrode, and a resistor. The insulator is held on the inside of the housing. The center electrode 4 is held on the inside of the insulator, with a tip end being projected therefrom. The terminal bracket is held on the inside of the insulator, with a base end part and being projected therefrom. The ground electrode forms a spark discharge gap G between itself and the center electrode. The resistor contains carbon and is disposed on the inside of the insulator so as to be located between the center electrode 4 and the terminal bracket. In an axial direction X of the spark plug, the resistor has a higher carbon content in a first region positioned on a tip side, compared to a second region positioned on a base end side.
    Type: Application
    Filed: February 10, 2016
    Publication date: February 1, 2018
    Inventors: Kenji HATTORI, Masamichi SHIBATA, Toshiya NAKAMURA, Yasuomi IMANAKA, Hirofumi SUZUKI, Hiroshi ARAKI, Tomoyuki WATANABE, Shin HASE