Patents by Inventor Kunihiko Suzuki

Kunihiko Suzuki 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: 8967350
    Abstract: A driving force transmission apparatus includes: a first cam mechanism that converts rotational force from a housing into first cam thrust force used as clutch force of a main clutch when the first cam mechanism is actuated through clutch action of a pilot clutch; and a second cam mechanism that is actuated prior to conversion of the rotational force into the first cam thrust force by the first cam mechanism, and that generates second cam thrust force for reducing an interval between clutch plates of the main clutch. The second cam mechanism includes an input cam member that rotates upon receiving rotational force used as actuating force of the input cam member from a cam actuating driving source, and an output cam member that generates the second cam thrust force between the output cam member and the input cam member and outputs the second cam thrust force.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: March 3, 2015
    Assignee: Jtekt Corporation
    Inventors: Noriyuki Fujii, Hiroshi Takuno, Kunihiko Suzuki, Yuji Tsuzuki
  • Patent number: 8961367
    Abstract: A driving force transmission apparatus includes a linkage mechanism that is able to carry out switchover between a connected state where first and second intermediate shafts are connected to each other so as to be non-rotatable relative to each other to transmit torque output from an electric motor to a rear wheel, and a disconnected state where the first and second intermediate shafts are disconnected from each other. When switching the driving force transmission apparatus from the connected state to the disconnected state, a control unit reduces the torque that is generated by the motor during a drive state where the torque output from the motor is transmitted from the first intermediate shaft to the second intermediate shaft, and switches the driving force transmission apparatus from the connected state to the disconnected state by controlling the linkage mechanism while the torque that is generated by the motor has been reduced.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: February 24, 2015
    Assignee: JTEKT Corporation
    Inventors: Kunihiko Suzuki, Keita Nomura
  • Publication number: 20150025763
    Abstract: A driving force transmission control system includes: an electric motor; a multi-disc clutch; a cam mechanism that converts rotation output from the electric motor into cam thrust force that is axial force in the axial direction of the multi-disc clutch; a pressure-conversion mechanism that converts reaction force against the cam thrust force into pressure of a fluid; a pressure sensor that detects the pressure; and a control unit that computes a command value of a current supplied to the electric motor. The control unit stores the pressure of the fluid during disengagement of the multi-disc clutch, and computes the current command value based on the pressure of the fluid to which the reaction force against the cam thrust force has been applied, and the stored pressure of the fluid.
    Type: Application
    Filed: July 16, 2014
    Publication date: January 22, 2015
    Applicant: JTEKT CORPORATION
    Inventors: Takashi HOSOKAWA, Kunihiko SUZUKI
  • Patent number: 8921212
    Abstract: A semiconductor device manufacturing apparatus includes a chamber in which a wafer is loaded; a first gas supply unit for supplying a process gas into the chamber; a gas exhaust unit for exhausting a gas from the chamber; a wafer support member on which the wafer is placed; a ring on which the wafer support member is placed; a rotation drive control unit connected to the ring to rotate the wafer; a heater disposed in the ring and comprising a heater element for heating the wafer to a predetermined temperature and including an SiC layer on at least a surface, and a heater electrode portion molded integrally with a heater element and including an SiC layer on at least a surface; and a second gas supply unit for supplying an SiC source gas into the ring.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: December 30, 2014
    Assignee: NuFlare Technology, Inc.
    Inventors: Kunihiko Suzuki, Shinichi Mitani
  • Publication number: 20140353654
    Abstract: A light-emitting element which at least includes a monomolecular layer including a luminescent center material with a fluorescent light-emitting property, and a monomolecular layer including a host material with a carrier (electron or hole)-transport property and a band gap larger than a band gap (note that a band gap refers to the energy difference between a HOMO level and a LUMO level) of the luminescent center material, between a pair of electrodes, in which the monomolecular layer including the host material and the monomolecular layer including the luminescent center material share the same interface, is provided.
    Type: Application
    Filed: August 14, 2014
    Publication date: December 4, 2014
    Inventors: Shunpei Yamazaki, Kunihiko Suzuki, Harue Osaka, Masahiro Takahashi
  • Patent number: 8870713
    Abstract: A driving force transmission apparatus includes a linkage mechanism that is able to carry out switchover between a connected state where a first intermediate shaft and a second intermediate shaft are connected to each other so as to be non-rotatable relative to each other to transmit torque output from an electric motor to a rear wheel, and a disconnected state where the first intermediate shaft and the second intermediate shaft are disconnected from each other. A control unit reduces the torque that is generated by the electric motor, after making a rotational speed of the first intermediate shaft higher than or equal to a rotational speed of the second intermediate shaft, and then switches the driving force transmission apparatus from the disconnected state to the connected state by controlling the linkage mechanism with the torque that is generated by the motor maintained at a reduced level.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: October 28, 2014
    Assignee: JTEKT Corporation
    Inventors: Kunihiko Suzuki, Keita Nomura
  • Publication number: 20140298802
    Abstract: In internal combustion engines that return exhaust gas branching from downstream section of a turbine to an upstream section of a compressor during exhaust gas return in a supercharged state, the present invention closes an air bypass valve that bypasses the compressor while the vehicle is decelerating, and also opens a wastegate valve that bypasses or diverts gases away from the turbine in order to resolve a phenomenon in which the amount of exhaust gas temporarily increases and the exhaust gas cannot be supplied at a stable target value while the vehicle is decelerating due to the length of the path from the convergence section where the new air meets the EGR, to the cylinder, and due to the opening of the air bypass valve of the air bypass path joining the top and bottom of the compressor during deceleration.
    Type: Application
    Filed: October 31, 2012
    Publication date: October 9, 2014
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Kunihiko Suzuki, Seiji Asano
  • Publication number: 20140284163
    Abstract: A driving force transmission apparatus includes: an electric motor; a multi-disc clutch including outer clutch plates and inner clutch plates that are disposed coaxially with each other so as to be rotatable relative to each other and that are frictionally engaged with each other by being pressed in an axial direction; an input rotary member that rotates together with the outer clutch plates; an output rotary member that rotates together with the inner clutch plates; a cam mechanism that generates cam thrust force for pressing the multi-disc clutch in the axial direction upon reception of torque generated by the electric motor; a strain sensor that detects reaction force against the cam thrust force; and a spring member that is disposed between the cam mechanism and the strain sensor and that buffers an impact transmitted from the cam mechanism to the strain sensor.
    Type: Application
    Filed: March 19, 2014
    Publication date: September 25, 2014
    Applicant: JTEKT Corporation
    Inventors: Takeshi YAMAMOTO, Hiroshi KUSHINO, Kunihiko SUZUKI, Noriyuki FUJII, Takashi HOSOKAWA
  • Patent number: 8840510
    Abstract: A speed reduction mechanism includes: a speed reduction unit that includes an input member formed of an external gear that makes circular motion about a rotation axis with an eccentric amount, and a rotation force applying member formed of an internal gear that is in mesh with the input member; and a lubricating oil supply unit that supplies lubricating oil to a bearing of the speed reduction unit. The lubricating oil supply unit includes an oil tank arranged outside of the rotation force applying member, an oil delivery passage that delivers the lubricating oil to the oil tank, and a first oil introduction passage that introduces the lubricating oil from the oil tank to the bearing. The lubricating oil is delivered to the oil delivery passage through pumping action of the input member based on the circular motion.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: September 23, 2014
    Assignee: JTEKT Corporation
    Inventors: Keita Nomura, Kunihiko Suzuki, Tomoyoshi Takai
  • Publication number: 20140274543
    Abstract: An electromagnetic clutch unit includes: a friction mechanism including a first friction member and a second friction member; a lock sleeve connected to an input shaft member so as to be non-rotatable relative to the input shaft member, and movable in an axial direction of the electromagnetic clutch unit between a first position at which the lock sleeve is engaged with only the input shaft member and a second position at which the lock sleeve is engaged with both an output shaft member and the input shaft member; and a pressing member that constitutes a magnetic path extending over the pressing member and the second friction member, and that presses the lock sleeve with the electromagnetic force to move the lock sleeve from the first position to the second position.
    Type: Application
    Filed: March 11, 2014
    Publication date: September 18, 2014
    Applicant: JTEKT Corporation
    Inventors: Noriyuki Fujii, Kunihiko Suzuki
  • Publication number: 20140251083
    Abstract: A driving force transmission apparatus including a tank which reserves lubricating oil in an accommodating space which is interposed between a housing and an inner shaft and an apparatus case which has a cylindrical accommodating portion which accommodates the housing, and in the case, the accommodating portion has an inner circumferential surface which faces an outer circumferential surface of the housing, and the tank has an oil inlet port which is opened to the inner circumferential surface of the accommodating portion and through which the lubricating oil in the accommodating space is let in based on a centrifugal force generated in association with the rotation of the housing when a four-wheel drive vehicle travels forwards in a two-wheel drive mode.
    Type: Application
    Filed: October 19, 2012
    Publication date: September 11, 2014
    Applicant: JTEKT CORPORATION
    Inventors: Kunihiko Suzuki, Takashi Hosokawa, Hiroshi Takuno, Noriyuki Fujii
  • Patent number: 8815711
    Abstract: A manufacturing apparatus for a semiconductor device, including: a reaction chamber configured to perform film formation on a wafer; a process gas supplying mechanism provided in an upper part of the reaction chamber and configured to introduce process gas to an interior of the reaction chamber; a gas discharging mechanism provided in a lower part of the reaction chamber and configured to discharge gas from the reaction chamber; a supporting member configured to hold the wafer; a cleaning gas supplying mechanism provided in an outer periphery of the supporting member and configured to emit cleaning gas in an outer periphery direction below an upper end of the supporting member; a heater configured to heat the wafer; and a rotary driving mechanism configured to rotate the wafer.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: August 26, 2014
    Assignees: NuFlare Technology, Inc., Denso Corporation, Toyota Jidosha Kabushiki Kaisha
    Inventors: Kunihiko Suzuki, Hideki Ito, Hidekazu Tsuchida, Isaho Kamata, Masahiko Ito
  • Publication number: 20140234664
    Abstract: To improve peelability, yield in a peeling step, and yield in manufacturing a flexible device. A peeling method is employed which includes a first step of forming a peeling layer containing tungsten over a support substrate; a second step of forming, over the peeling layer, a layer to be peeled formed of a stack including a first layer containing silicon oxynitride and a second layer containing silicon nitride in this order and forming an oxide layer containing tungsten oxide between the peeling layer and the layer to be peeled; a third step of forming a compound containing tungsten and nitrogen in the oxide layer by heat treatment; and a fourth step of peeling the peeling layer from the layer to be peeled at the oxide layer.
    Type: Application
    Filed: February 18, 2014
    Publication date: August 21, 2014
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Seiji YASUMOTO, Masataka SATO, Shingo EGUCHI, Kunihiko SUZUKI
  • Patent number: 8809841
    Abstract: A light-emitting element which at least includes a monomolecular layer including a luminescent center material with a fluorescent light-emitting property, and a monomolecular layer including a host material with a carrier (electron or hole)-transport property and a band gap larger than a band gap (note that a band gap refers to the energy difference between a HOMO level and a LUMO level) of the luminescent center material, between a pair of electrodes, in which the monomolecular layer including the host material and the monomolecular layer including the luminescent center material share the same interface, is provided.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: August 19, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Kunihiko Suzuki, Harue Osaka, Masahiro Takahashi
  • Publication number: 20140182995
    Abstract: In a clutch plate of an annular shape and a wet type, a plurality of lubrication grooves each taking a U-shape in cross-section are formed on a friction engaging surface on at least one end side. The groove is provided with a groove forming portion crossing the circumferential direction and blunt portions extending along both sides of the groove forming portion and connecting the friction engaging surface with the groove forming portion. Where a straight line passing across one side end of the groove and extending in a radial direction is assumed as a virtual straight line, in a section of the groove taken along a plane that is orthogonal to the virtual straight line and that includes the one side end, the width of the blunt portion on one side is in a range of 0.12 to 0.35 mm, and the depth of the blunt portion is in a range of 25 to 50 ?m.
    Type: Application
    Filed: August 24, 2012
    Publication date: July 3, 2014
    Applicant: JTEKT Corporation
    Inventors: Junji Ando, Kunihiko Suzuki, Kazutaka Matsukawa, Hiroyuki Ando, Takuya Tsuda
  • Publication number: 20140151662
    Abstract: A light-emitting element in which a light-emitting layer contains an organic compound capable of emitting phosphorescence is provided. A light-emitting element which can have low driving voltage, high current efficiency, or a long lifetime is provided. In a light-emitting element in which a light-emitting layer is interposed between a pair of electrodes, the light-emitting layer contains an organic compound. The organic compound has a 1,2,4-triazole skeleton, a phenyl skeleton, an arylene skeleton, and a Group 9 metal or a Group 10 metal. The nitrogen atom at the 4-position of the 1,2,4-triazole skeleton coordinates to the Group 9 metal or the Group 10 metal. The nitrogen atom at the 1-position of the 1,2,4-triazole skeleton is bonded to a phenyl skeleton. The arylene skeleton is bonded to the 3-position of the 1,2,4-triazole skeleton and the Group 9 metal or the Group 10 metal.
    Type: Application
    Filed: November 27, 2013
    Publication date: June 5, 2014
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Tomoka Nakagawa, Satoshi Seo, Nobuharu Ohsawa, Kunihiko Suzuki
  • Patent number: 8734655
    Abstract: [PROBLEM] There is provided a method for regenerating a filter, by which deterioration of the color tone of purified acrylic acid can be prevented. [SOLUTION] There is provided a method for regenerating a filter which has been used in a filtration step in the process for producing an acrylic acid, comprising a step (A) wherein the filter is washed with an aqueous alkaline solution, a step (B) wherein the filter is washed with water after the step (A) , and a step (C) wherein the filter is brought into contact with the acrylic acid for regeneration for at least one hour after the step (B).
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: May 27, 2014
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Koji Ueno, Kunihiko Suzuki, Atsushi Sugano
  • Patent number: 8734283
    Abstract: When a bearing includes outer and inner rings and the outer ring is fitted to the inner periphery of an input member, which defines a center hole, with a clearance and the inner ring is fitted to an eccentric portion with a clearance, a size between a second axis and a third axis is set to a size that is smaller than or equal to half of a size obtained by adding a diameter difference between an outside diameter of the bearing and an inside diameter of the input member, which defines the center hole, a diameter difference between an inside diameter of the bearing and an outside diameter of the eccentric portion and an operating clearance of the bearing in a state where the input member has been moved to contact the housing on a line perpendicular to the second axis and a fourth axis.
    Type: Grant
    Filed: January 2, 2013
    Date of Patent: May 27, 2014
    Assignee: JTEKT Corporation
    Inventors: Hiroshi Takuno, Kunihiko Suzuki, Keita Nomura, Tsune Kobayashi, Tohru Onozaki, Masaharu Tagami
  • Publication number: 20140138683
    Abstract: An object is to provide a semiconductor device with stable electric characteristics in which an oxide semiconductor is used. An impurity such as hydrogen or moisture (e.g., a hydrogen atom or a compound containing a hydrogen atom such as H2O) is eliminated from an oxide semiconductor layer with use of a halogen element typified by fluorine or chlorine, so that the impurity concentration in the oxide semiconductor layer is reduced. A gate insulating layer and/or an insulating layer provided in contact with the oxide semiconductor layer can be formed to contain a halogen element. In addition, a halogen element may be attached to the oxide semiconductor layer through plasma treatment under an atmosphere of a gas containing a halogen element.
    Type: Application
    Filed: January 28, 2014
    Publication date: May 22, 2014
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei YAMAZAKI, Kunihiko SUZUKI, Masahiro TAKAHASHI
  • Patent number: 8721484
    Abstract: In a reduction-transmission mechanism, a plurality of output members are arranged at such positions that a size that is the sum of a fitting clearance formed between an outer periphery of each output member and a corresponding one of needle roller bearings, a fitting clearance formed between the needle roller bearing and an inner periphery of an input member, which defines a corresponding one of a plurality of pin insertion holes, and a radial internal clearance in the needle roller bearing is smaller than a size that is the sum of a fitting clearance formed between a ball bearing and an outer periphery of an eccentric portion, a fitting clearance formed between the ball bearing and an inner periphery of the input member, which defines a center hole, and a radial internal clearance in the ball bearing.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: May 13, 2014
    Assignee: JTEKT Corporation
    Inventors: Kunihiko Suzuki, Hiroshi Takuno, Keita Nomura, Kazutaka Matsukawa, Yasushi Kadota, Takeshi Yamamoto