Patents by Inventor Masami Abe

Masami Abe 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: 12043215
    Abstract: A vehicle article storage structure includes an article storage box (13) provided with an opening (33a) on the upper side forgetting articles in and out, a housing unit (15) provided on the lower side of an instrument panel (3) to house the article storage box (13), and links (35, 37, and 39) configured to movably support the article storage box (13) along a range from a housed position at which the article storage box (13) is housed in the housing unit (15) to a drawn position at which the article storage box (13) is drawn in a vehicle compartment rearward direction from the housed position via an intermediate position at which the article storage box (13) is located between the housed position and the drawn position, the intermediate position being located below the housed position and the drawn position.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: July 23, 2024
    Assignees: Nissan Motor Co., Ltd., Marelli Corporation
    Inventors: Takeshi Nishimura, Shota Watase, Tomohiro Watanabe, Masato Abe, Masami Kikuchi
  • Patent number: 10247181
    Abstract: A high-pressure fuel pump includes a pressurizing chamber for pressurizing fuel, an outlet valve for discharging the fuel pressurized in the pressurizing chamber to an outlet passage, a relief passage for connecting the outlet passage located downstream of the outlet valve and the pressurizing chamber with each other while bypassing the outlet valve. A relief valve device is provided in the relief passage and adapted to open when an internal pressure of the outlet passage becomes higher than that of the pressurizing chamber, thereby providing communication between the outlet passage and the pressurizing chamber. The relief valve includes a relief spring mechanism for pressing a relief valve to a relief valve seat. At least the relief spring mechanism among members of the relief valve device is provided outside the pressurizing chamber in the pump body.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: April 2, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Satoshi Usui, Hiroyuki Yamada, Kenichiro Tokuo, Toru Onose, Masami Abe
  • Patent number: 10184443
    Abstract: Since a pinion gear unit which rotates according to the rotation of an output rotation shaft driven by the motor unit, a pushing mechanism which moves the pinion gear unit towards an engagement location of the pinion gear and an engine starting gear, and a bracket which includes a bracket main body unit which supports the motor unit and the pushing mechanism and a nose unit which extends from the bracket main body unit to a side opposite to the motor unit and rotatably bears a tip portion of the output rotation shaft on a side opposite to the motor unit, and which is attached to an engine side are included, a first stopper unit which restricts the movement of the rotation member to the direction of the engine starting gear is provided on the output rotation shaft, a second stopper unit which restricts the movement of the pinion gears to the direction of the engine starting gear by pushing and biasing of the elastic member is provided on the rotation member, and positioning the first stopper unit is positioned
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: January 22, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masami Abe, Koichiro Kamei, Kazuhiro Odahara, Naohito Kaneda, Daisuke Mizuno
  • Patent number: 9670892
    Abstract: An engine startup device is provided having a helical-spline-engaging part where an output shaft (5) and a moving body (3) are coupled with each other, wherein a notch (37b, 38b) is formed on a power-transmitting-side tooth surface (37a, 38a) of at least either one of the output shaft and the moving body, and an angle formed by the notch with respect to a shaft direction is made smaller than the lead angle of a helical spline.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: June 6, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masami Abe, Koichiro Kamei, Kazuhiro Odahara
  • Patent number: 9568026
    Abstract: In an electric motor-driven booster, a sharp change of reaction force to an operation of a brake pedal is reduced to improve the brake pedal operation feeling. Operation of the brake pedal causes an input rod (34) and an input piston (32) to advance, and an electric motor (40) is driven according to the movement of the input piston to propel a primary piston (10) through a ball-screw mechanism, thereby generating a desired brake hydraulic pressure in a master cylinder. At this time, the input piston receives the hydraulic pressure in the master cylinder to feed back a part of reaction force during braking to the brake pedal. When the brake pedal is further depressed after the output of the electric motor has reached a maximum output and the primary piston 10 has stopped, a lock nut abuts against a movable spring retainer and compresses a reaction force spring.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: February 14, 2017
    Assignees: NISSAN MOTOR CO., LTD., HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Masayuki Yoshimoto, Ryozo Ikeuchi, Ryo Sekiya, Hideaki Ishii, Kazumoto Sano, Hiroshi Shigeta, Naoki Shirakawa, Ryoichi Yagi, Masami Abe
  • Patent number: 9518550
    Abstract: Since a pinion gear unit which rotates according to the rotation of an output rotation shaft driven by the motor unit, a pushing mechanism which moves the pinion gear unit towards an engagement location of the pinion gear and an engine starting gear, and a bracket which includes a bracket main body unit which supports the motor unit and the pushing mechanism and a nose unit which extends from the bracket main body unit to a side opposite to the motor unit and rotatably bears a tip portion of the output rotation shaft on a side opposite to the motor unit, and which is attached to an engine side are included, a first stopper unit which restricts the movement of the rotation member to the direction of the engine starting gear is provided on the output rotation shaft, a second stopper unit which restricts the movement of the pinion gears to the direction of the engine starting gear by pushing and biasing of the elastic member is provided on the rotation member, and positioning the first stopper unit is positioned
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: December 13, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masami Abe, Koichiro Kamei, Kazuhiro Odahara, Naohito Kaneda, Daisuke Mizuno
  • Patent number: 9512812
    Abstract: It is possible to obtain an engine starting device in which, at the time of initial engagement of a first pinion gear and an engine starting gear, in a case where the first pinion gear collides with the engine starting gear, the first pinion gear is inclined with respect to the second pinion gear, a void having a predetermined size for expanding the inclined state is formed between a surface of an end surface portion of the first pinion gear on the side of an end surface portion of the second pinion gear, and a surface of an end surface portion of the second pinion gear on the side of the end surface portion of the first pinion gear, even in a case where any one of the rotation speed of the engine starting gear and the rotation speed of the pinion gear is larger than the other, rotation synchronization of the engine starting gear and the pinion gear and phase focusing of the teeth between the engine starting gear and the pinion gear is further rapidly and further reliably performed at the time when the engine
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: December 6, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kazuhiro Odahara, Koichiro Kamei, Daisuke Mizuno, Masami Abe, Naohito Kaneda
  • Publication number: 20160160825
    Abstract: A high-pressure fuel pump includes a pressurizing chamber for pressurizing fuel, an outlet valve for discharging the fuel pressurized in the pressurizing chamber to an outlet passage, a relief passage for connecting the outlet passage located downstream of the outlet valve and the pressurizing chamber with each other while bypassing the outlet valve. A relief valve device is provided in the relief passage and adapted to open when an internal pressure of the outlet passage becomes higher than that of the pressurizing chamber, thereby providing communication between the outlet passage and the pressurizing chamber. The relief valve includes a relief spring mechanism for pressing a relief valve to a relief valve seat. At least the relief spring mechanism among members of the relief valve device is provided outside the pressurizing chamber in the pump body.
    Type: Application
    Filed: February 11, 2016
    Publication date: June 9, 2016
    Inventors: Satoshi USUI, Hiroyuki YAMADA, Kenichiro TOKUO, Toru ONOSE, Masami ABE
  • Patent number: 9334845
    Abstract: The engine starting device includes a pinion unit which is spline-coupled to an output shaft side of a starter motor to slide in an axial direction, the pinion unit including a one-way clutch which spins for rotation in the same direction as that of rotation of the engine, and a pushing mechanism for moving the pinion unit to a position in which the pinion unit comes into meshing engagement with a ring gear. A pinion gear of the pinion unit is movable in the axial direction as a single body, and includes a chamfered portion having a curved surface along a tooth surface on a non-torque transmitting surface side and a large length in the axial direction, the chamfered portion being provided to a ring-gear side distal end portion of the tooth surface on the non-torque transmitting surface side.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: May 10, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Daisuke Mizuno, Akihiko Imagi, Hiroaki Kitano, Koichiro Kamei, Kazuhiro Odahara, Masami Abe
  • Patent number: 9291162
    Abstract: A high-pressure fuel pump includes a pressurizing chamber for pressurizing fuel, an outlet valve for discharging the fuel pressurized in the pressurizing chamber to an outlet passage, a relief passage for connecting the outlet passage located downstream of the outlet valve and the pressurizing chamber with each other while bypassing the outlet valve. A relief valve device is provided in the relief passage and adapted to open when an internal pressure of the outlet passage becomes higher than that of the pressurizing chamber, thereby providing communication between the outlet passage and the pressurizing chamber. The relief valve includes a relief spring mechanism for pressing a relief valve to a relief valve seat. At least the relief spring mechanism among members of the relief valve device is provided outside the pressurizing chamber in the pump body.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: March 22, 2016
    Assignee: Hitachi, Ltd.
    Inventors: Satoshi Usui, Hiroyuki Yamada, Kenichiro Tokuo, Toru Onose, Masami Abe
  • Patent number: 9255561
    Abstract: The engine starting device includes a starter motor, a pinion portion, a pushing mechanism for pushing a pinion gear of the pinion portion to a position at which the pinion gear comes into meshing engagement with a ring gear, and an integrated switch for operating a motor-energization switch to pull a plunger after the pinion gear is pushed, by configuring a switch for actuating the pushing mechanism and turning ON/OFF an energization current to the starter motor by a single plunger coil. When a restart request is issued after an engine stop is requested and therefore the integrated switch is placed in an ON state, operation timing of the pushing mechanism and coil-operation timing of the plunger coil are set so that the starter motor avoids operating until the pinion gear comes into contact or meshing engagement with the ring gear.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: February 9, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Daisuke Mizuno, Haruhiko Shimoji, Koichiro Kamei, Masami Abe, Kazuhiro Odahara, Hiroaki Kitano
  • Patent number: 9249770
    Abstract: The engine starter includes: a starter motor; a pinion unit (30) for sliding in an axial direction on an output shaft of the starter motor; and a ring gear (100) which meshes with a pinion pushed out by a push-out mechanism (60) and receives a transmission of a rotational force of the starter motor to thereby start an engine, and the pinion portion (30) includes a pinion gear divided in the axial direction into two pinion gears which are a first pinion gear (35) having a protruded shape for synchronization, for first colliding with the ring gear upon start of meshing with the ring gear, and a second pinion gear (34) for serving to transmit the rotational force after the meshing.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: February 2, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Daisuke Mizuno, Haruhiko Shimoji, Koichiro Kamei, Masami Abe, Kazuhiro Odahara, Masahiko Kurishige, Hiroaki Kitano, Yuhei Tsukahara, Masahiro Iezawa
  • Patent number: 9175657
    Abstract: A pinion gear unit includes a rotation member rotating according to the rotation of a output shaft. A first pinion gear fit to the rotation member through a first serration unit rotates with, and also moves with the rotation member if the pinion gear unit moves towards an engagement location with an engine starting gear. A second pinion gear is fit to the rotation member adjacent to the first pinion gear through a second serration unit, rotates with and moves with the rotation member if the pinion gear unit further moves towards the engagement location, and engages with the starting gear later than the first pinion gear, where the first pinion gear engages with the engine starting gear. Fitting is performed by the first and second serration units so that phases of teeth of the first and second pinion gears in a circumferential direction correspond with each other.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: November 3, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Naohito Kaneda, Daisuke Mizuno, Koichiro Kamei, Kazuhiro Odahara, Masami Abe
  • Patent number: 9163604
    Abstract: Engine starting device, including: a crank signal generation unit (13); and an engine control unit (10) for identifying a predetermined crank position of a crankshaft, and starting the engine, in which the engine control unit estimates, in a course of stopping the engine when a stop condition for the engine is established, based on an engine rpm at the identified predetermined crank position, whether or not the engine rotates backward before reaching the predetermined crank position for a next time, and after estimating that the engine rotates backward, sets an inhibition range which is prescribed from a starter drive inhibition start timing to a starter drive inhibition reset timing, and a permission range which is other than the inhibition range, and when the restart condition is established during rotation of the engine, inhibits restart in the inhibition range and carries out the restart in the permission range.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: October 20, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kazuhiro Odahara, Koichiro Kamei, Masami Abe
  • Publication number: 20150159617
    Abstract: Since a pinion gear unit which rotates according to the rotation of an output rotation shaft driven by the motor unit, a pushing mechanism which moves the pinion gear unit towards an engagement location of the pinion gear and an engine starting gear, and a bracket which includes a bracket main body unit which supports the motor unit and the pushing mechanism and a nose unit which extends from the bracket main body unit to a side opposite to the motor unit and rotatably bears a tip portion of the output rotation shaft on a side opposite to the motor unit, and which is attached to an engine side are included, a first stopper unit which restricts the movement of the rotation member to the direction of the engine starting gear is provided on the output rotation shaft, a second stopper unit which restricts the movement of the pinion gears to the direction of the engine starting gear by pushing and biasing of the elastic member is provided on the rotation member, and positioning the first stopper unit is positioned
    Type: Application
    Filed: January 13, 2015
    Publication date: June 11, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masami ABE, Koichiro KAMEI, Kazuhiro ODAHARA, Naohito KANEDA, Daisuke MIZUNO
  • Publication number: 20150020761
    Abstract: An engine startup device is provided having a helical-spline-engaging part where an output shaft (5) and a moving body (3) are coupled with each other, wherein a notch (37b, 38b) is formed on a power-transmitting-side tooth surface (37a, 38a) of at least either one of the output shaft and the moving body, and an angle formed by the notch with respect to a shaft direction is made smaller than the lead angle of a helical spline.
    Type: Application
    Filed: May 17, 2012
    Publication date: January 22, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masami Abe, Koichiro Kamei, Kazuhiro Odahara
  • Patent number: 8869640
    Abstract: Provided is an engine starter wherein a torsional angle ?1 of a helical spline 4a of an output shaft 4 is set in such a way that a reactive force Fp1 of a plunger spring 33, which is operated to a clutch 5, is larger than a propulsive force F, which is operated so as to urge the clutch 5 by a rotational force of the motor 2 in a shaft direction along a helical spline 4a of an output shaft 4, before a pinion engaging solenoid 8 is operated. Thereby, it can be prevented that the clutch 5 is urged in the shaft direction, so that it can be prevented without upsizing the engine starter that the pinion 6 is protruded in the shaft direction.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: October 28, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masami Abe, Koichiro Kamei, Kazuhiro Odahara
  • Patent number: 8740579
    Abstract: A high-pressure fuel supply pump includes a discharge valve, which is a non-return valve between a pressurizing chamber and a discharge port. The discharge valve includes a valve body housing, a discharge valve spring, a valve body and a seat member. The discharge valve is a flat valve. When the valve is opened, a flow of fuel moving from the pressurizing chamber and axially colliding with the valve body is radially distributed in the radial direction of the valve body to become a flow directly moving the discharge ports and a flow colliding with an inner wall of the valve body housing before moving toward the discharge ports and then in a circumferential direction of the valve body.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: June 3, 2014
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Shunsuke Aritomi, Hideki Machimura, Kiyotaka Ogura, Masami Abe, Kenichiro Tokuo
  • Publication number: 20140060247
    Abstract: The engine starting device includes a pinion unit which is spline-coupled to an output shaft side of a starter motor to slide in an axial direction, the pinion unit including a one-way clutch which spins for rotation in the same direction as that of rotation of the engine, and a pushing mechanism for moving the pinion unit to a position in which the pinion unit comes into meshing engagement with a ring gear. A pinion gear of the pinion unit is movable in the axial direction as a single body, and includes a chamfered portion having a curved surface along a tooth surface on a non-torque transmitting surface side and a large length in the axial direction, the chamfered portion being provided to a ring-gear side distal end portion of the tooth surface on the non-torque transmitting surface side.
    Type: Application
    Filed: June 11, 2013
    Publication date: March 6, 2014
    Inventors: Daisuke MIZUNO, Akihiko IMAGI, Hiroaki KITANO, Koichiro KAMEI, Kazuhiro ODAHARA, Masami ABE
  • Publication number: 20130302192
    Abstract: A plunger type high-pressure fuel pump includes a plunger reciprocated in a cylinder. A fluid pressurizing chamber of the pump has a chamber with a capacity that changes with reciprocation of the plunger. An electromagnetic valve is provided between the pressurizing chamber and a fluid suction passage; as well as a discharge valve. The electromagnetic valve includes a valve member including a suction valve; a solenoid coil adapted to displace the valve member; an anchor made of a magnetic material provided integrally with the valve member; and a core forming a magnetic circuit to attract the anchor by the electromagnetic force and dividing the inside of the electromagnetic valve into an internal space and an external space communicating with the fluid suction passage. The anchor or the core is provided with a fluid passage through which fluid can flow between the internal space and the external space formed by the anchor and the core, respectively, when the suction valve is in an opened state.
    Type: Application
    Filed: July 17, 2013
    Publication date: November 14, 2013
    Inventors: Kenichiro TOKUO, Satoshi USUI, Hiroyuki YAMADA, Junichi SHIMADA, Masami ABE