Patents by Inventor Hitoshi Ono

Hitoshi Ono 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: 20090250942
    Abstract: An electromagnetic controller includes an exciting coil unit that is provided with a coil main body and an exciting piece that is positioned at a tip end side of the coil main body so as to be magnetized according to an excitation of the coil main body; and a plunger that is disposed in a ring-shaped space formed at an inner diameter side of the exciting coil unit so as to be movable in the ring-shaped space in an axial center direction, the plunger being displaceable from a non-acting position to an acting position at a tip end side under an attracting force based on magnetization of the exciting piece, wherein an urging member is provided at the inner diameter side of the exciting coil unit so as to urge the plunger to a side of the non-acting position according to demagnetization of the exciting piece.
    Type: Application
    Filed: March 16, 2009
    Publication date: October 8, 2009
    Applicant: MITSUBA CORPORATION
    Inventors: Masataka Odagiri, Tomohiko Ikemori, Hitoshi Ono, Yoshikazu Sato, Hiroshi Ooka, Shigeyuki Enkaku
  • Patent number: 7596440
    Abstract: A steering apparatus for an automotive vehicle is provided with an electric drive unit that varies a steering ratio between a road wheel angle and a steering wheel angle of the vehicle, a temperature sensor that detects a temperature of the electric drive unit, and a control unit including a steering ratio characteristic setting block that sets a characteristic of the steering ratio including a steering gain and a steering response rate in accordance with an operating state of the vehicle and, when the temperature of the electric drive unit exceeds a first temperature threshold, adjusts the steering response rate in such a manner that the steering response rate comes closer to a base steering response rate level as the temperature of the electric drive unit becomes increased and a drive block that drives the electric drive unit to vary the steering ratio according to the steering ratio characteristic.
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: September 29, 2009
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Hitoshi Ono
  • Publication number: 20090145263
    Abstract: An engine starter includes a motor that comprises a drive shaft; and a unidirectional rotation clutch system that is helical-splined to the drive shaft. The clutch system includes a clutch inner; a clutch outer; a clutch roller that is interposed between the clutch outer and the clutch inner; and a spring that urges the clutch roller, wherein a compound film is formed on a surface of the clutch roller or surfaces of the clutch outer and the clutch inner.
    Type: Application
    Filed: December 26, 2006
    Publication date: June 11, 2009
    Applicant: Mitsuba Corporation
    Inventors: Hitoshi Ono, Tomohiko Ikemori, Shigeyuki Enkaku, Chihiro Horikoshi, Shinya Saito, Shigehiro Kanbe
  • Publication number: 20090133531
    Abstract: A helical spline section 61 is formed on a drive shaft 32 rotated by a motor 11 via a planetary gear mechanism 12, and an axially movable overrunning clutch 13 is mounted to the helical spline section 61. A clutch inner 57 of the overrunning clutch 13 is formed integrally with a pinion 14, and the pinion 14 engages with an idle gear 15. Between the idle gear 15 and the clutch cover 68 of the overrunning clutch 13, there is provided a synthetic resin slip plate 95. The slip plate 95 is provided with slide-contact surfaces 95a and 95b coming into contact with the idle gear 15 and the clutch cover 68. On each of the slide-contact surfaces 95a and 95b, there is provided concavely an annular grease reservoir 96 holding grease on each of the slide-contact surfaces. Thereby, the lubricating ability of a spacer provided between the slide-contact members having mutually different rotation numbers is improved, resulting in reducing the cost of materials and preventing the burn-in between the members.
    Type: Application
    Filed: October 19, 2005
    Publication date: May 28, 2009
    Inventors: Hitoshi Ono, Michio Okada, Shigeyuki Enkaku, Shinya Saito, Chihiro Horikoshi
  • Patent number: 7506195
    Abstract: A method is provided to point out which software program is causing a problem. Event records are collected from target objects being monitored. An event group is then produced by grouping the collected event records. The event group is compared with a plurality of pattern definition groups in terms of occurrence patterns of event records, where each pattern definition group defines a pattern of event records that would be produced upon occurrence of a particular problem. Subsequently a troubleshooting record is extracted. This troubleshooting record has previously been associated with a pattern definition group resembling the event group in terms of occurrence patterns of event records.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: March 17, 2009
    Assignee: Fujitsu Limited
    Inventors: Daisaku Takahashi, Yukiko Yoshii, Yoshiaki Kaku, Hitoshi Ono, Hiroshi Suzuki, Chiaki Kawashima
  • Patent number: 7493984
    Abstract: A steering control apparatus for a vehicle including a steering input unit movable to set a steering input, and a steering output unit arranged to output a steering output, the steering input unit being connected via a cable to a body of the vehicle, includes a steering ratio control unit, a steering limiter, and a cable-attachment diagnostic controller. The steering ratio control unit regulates a variable steering ratio as a rate of change in the steering output with respect to a change in the steering input. The steering limiter restricts movement of the steering input unit to limit the steering input. The cable-attachment diagnostic controller is activated in a cable-attachment diagnostic mode, to control the steering ratio in such a manner that the steering input unit is movable over an allowable region defined by the steering limiter when the cable is correctly attached.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: February 24, 2009
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Hitoshi Ono, Takahiro Maekawa
  • Publication number: 20090038436
    Abstract: [PROBLEMS] To provide a starter motor enabling the easy and accurate aligning of holes when an idle shaft is mounted. [MEANS FOR SOLVING THE PROBLEMS] The screw mounting hole (106) and a female screw part (105) are formed in the bearing part (98) of a gear cover (24) and the screw insertion hole (104) is formed in the idle shaft (89). The idle shaft (89) is fixed to the gear cover (24) by inserting a fixing screw (107) through the screw mounting hole (106) and screwing it into the female screw part (105) through the screw insertion hole (104). A positioning groove (108) in a predetermined position relation with the screw insertion hole (104) is formed in the end face of the idle shaft (89).
    Type: Application
    Filed: September 1, 2006
    Publication date: February 12, 2009
    Inventors: Shinya Saito, Chihiro Horikoshi, Shigeyuki Enkaku, Hitoshi Ono
  • Publication number: 20090037051
    Abstract: An active suspension system has a plurality of actuators which are respectively installed between a wheel and a vehicle body and individually produce a control force, and a control unit which controls an attitude change of a vehicle by controlling the each control force of the plurality of actuators. The control unit sets first and second virtual control lines which extend along a front-and-rear direction of the vehicle and a width direction of the vehicle respectively and are changed so that the first and second virtual control lines follow expected pitching and rolling that would occur to the vehicle, and then controls the vehicle attitude so that the vehicle attitude is brought closer to the virtual control line.
    Type: Application
    Filed: July 30, 2008
    Publication date: February 5, 2009
    Inventors: Naoshige SHIMIZU, Hitoshi Ono
  • Publication number: 20080257077
    Abstract: A helical spline section 61 is formed on a drive shaft 32 rotated by a motor 11 via a planetary gear mechanism 12, and an axially movable overrunning clutch 13 is mounted to the helical spline section 61. A pinion 14 engaging with an idle gear 15 is formed integrally with a clutch inner 57 of the overrunning clutch 13. At the distal end of the pinion 14, there is formed a transport flange 72 engaging with the idle gear 15 and disengaging the idle gear 15 from a ring gear 16 together with the axial movement of the pinion 14. The root outer diameter of a gear section 71 of the pinion 14 is smaller than the outer diameter of the clutch inner 57, and the pinion 14 is formed integrally with the transport flange 72 and the clutch inner 57 by cold forging. Thereby, there is provided a simple, cheap and reliable electric starter motor capable of engaging and disengaging the idle gear and ring gear with each other and from each other without increasing the number of parts.
    Type: Application
    Filed: October 19, 2005
    Publication date: October 23, 2008
    Applicant: MITSUBA CORPORATION
    Inventors: Hitoshi Ono, Michio Okada, Shigeyuki Enkaku, Shinya Saito, Chihiro Horikoshi
  • Patent number: 7406374
    Abstract: A steering ratio control system of a vehicle includes a variable steering ratio mechanism variably adjusting a steering ratio of a steer angle at left and right steered road wheels to a steering-wheel rotation angle, and a braking/driving force control unit individually controlling braking force and/or driving force of the left and right steered wheels. A steering ratio control unit determines a reference steering ratio based on a vehicle's driving state. The steering ratio control unit calculates a steering-ratio correction value needed for canceling torque steer resulting from a difference in braking force and/or driving force between the left and right steered wheels. A final steering ratio is determined based on both of the reference steering ratio and the steering-ratio correction value to drive the variable steering ratio mechanism responsively to the final steering ratio reflecting the steering-ratio correction value.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: July 29, 2008
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Hitoshi Ono, Hajime Kosaka
  • Patent number: 7392878
    Abstract: A vehicle steering control system is provided with a steering angle ratio varying mechanism, a variable power assisted steering mechanism and a steering angle ratio controller. The steering angle ratio varying mechanism varies the steering angle ratio, which is the ratio of the turning angle of the front wheels with respect to the steering angle of the steering wheel. The variable power assisted steering mechanism outputs an auxiliary steering force that supplements the steering force of the driver to the steering mechanism for turning the front wheels. The steering angle ratio controller increases the steering angle ratio in a steering angle range in the vicinity of the steering angle center point, and reduces the steering angle ratio in the steering angle range in the vicinity of the rack stopper position, regardless of the steering angular speed of the steering wheel.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: July 1, 2008
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Hitoshi Ono, Youji Hoshino, Katsuhiro Suda, Yoshiki Yasuno
  • Patent number: 7308964
    Abstract: A vehicle steering apparatus includes a steering input section having at least a steering wheel to which steering input is applied, and a steering output section having at least a steering rack shaft and operatively associated with left and right steered wheels for steering the steered wheels by steering-rack-shaft movement produced by a steering force determined based on the steering input and transmitted directly or indirectly to the steering rack shaft. The steering rack shaft is split into left and right movable rack shaft portions. Also provided is a steer angle converter enabling a differential rack stroke between left and right rack strokes of the left and right movable rack shaft portions. The steer angle converter is constructed by at least one of a variable-pitch dual rack arrangement and a dual taper-pulley arrangement of a cable back-up mechanism.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: December 18, 2007
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kazuo Hara, Noriki Kubokawa, Tetsuya Osonoi, Takaaki Eguchi, Kiyotaka Shitamitsu, Hitoshi Ono
  • Publication number: 20070234830
    Abstract: An engine starter includes a unidirectional rotation clutch system with a clutch outer having an outer-diameter side cylinder portion, a clutch inner having an inner-diameter side cylinder portion, long shaft-shaped clutch rollers that are long in a drive shaft direction and are installed in wedge spaces formed between the inner and outer-diameter side cylinder portions, and springs that urge the clutch rollers toward wedge portions, wherein at least one of the inner and outer-diameter side cylinder portions includes a wear preventive portion that prevents wearing of the clutch rollers that have turned so as to be in an inclined posture with respect to the drive shaft.
    Type: Application
    Filed: March 22, 2007
    Publication date: October 11, 2007
    Applicant: MITSUBA CORPORATION
    Inventors: Hitoshi Ono, Tomohiko Ikemori, Shigeyuki Enkaku, Chihiro Horikoshi, Shinya Saito, Shigehiro Kanbe
  • Publication number: 20070111620
    Abstract: A leather-like sheet material including a fibrous substrate and an elastomeric film layer which are bonded to each other with a silicone-compound-containing water-soluble or water-dispersible adhesive layer of an elastic polymer, and the leather-like sheet material is produced by a process for the production of a leather-like sheet material by attaching the fibrous substrate and the elastomeric film layer, which process includes applying a water solution or water dispersion of an elastic polymer, the water solution or water dispersion containing a silicone compound, to the attachment surface of one of the fibrous substrate and the elastomeric film layer and drying the applied solution or dispersion. According to this invention, there is provided a leather-like sheet material excellent in abrasion resistance and at the same time excellent in tenacity against peeling and flexibility, and a production process thereof.
    Type: Application
    Filed: December 10, 2004
    Publication date: May 17, 2007
    Inventors: Hitoshi Ono, Masayoshi Kikuchi, Satoshi Maeda, Nobuo Ohkawa
  • Publication number: 20060131096
    Abstract: A steering control apparatus for a vehicle including a steering input unit movable to set a steering input, and a steering output unit arranged to output a steering output, the steering input unit being connected via a cable to a body of the vehicle, includes a steering ratio control unit, a steering limiter, and a cable-attachment diagnostic controller. The steering ratio control unit regulates a variable steering ratio as a rate of change in the steering output with respect to a change in the steering input. The steering limiter restricts movement of the steering input unit to limit the steering input. The cable-attachment diagnostic controller is activated in a cable-attachment diagnostic mode, to control the steering ratio in such a manner that the steering input unit is movable over an allowable region defined by the steering limiter when the cable is correctly attached.
    Type: Application
    Filed: November 29, 2005
    Publication date: June 22, 2006
    Inventors: Hitoshi Ono, Takahiro Maekawa
  • Patent number: 7007769
    Abstract: A fail-safe steering system for a vehicle, which prevents movable elements of a backup mechanism from being dragged by motions of an associated one of a steering input section and a steering output section under normal operating conditions of the system, is provided. The fail-safe steering system includes two selectively engageable clutch mechanisms operatively connectable between the steering input section and the backup mechanism and between the backup mechanism and the steering output section. The fail-safe steering system also includes a mechanism for keeping the backup mechanism in the neutral condition during backup mechanism being mechanically separated under normal operating conditions of the system.
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: March 7, 2006
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kazuo Hara, Hitoshi Ono, Kiyotaka Shitamitsu, Takaaki Eguchi, Yuusuke Katou, Toshiaki Kasahara
  • Patent number: 7004279
    Abstract: A vehicle steering system is provided with a primary steering system, a backup steering system and a control system that switches from the primary steering system to the backup steering system when a defect is determined in the primary steering system such as a defeat in a steering reaction force actuator. The vehicle steering system has a pair of clutches that mechanically disconnect the steering wheel from the steerable vehicle wheels in normal situations, and connect them when the steering reaction force actuator is determined to be defective. The control system has a steering malfunction detection section that detects a malfunction in the steering reaction force actuator, and a steering control limiting section that limits the control commands to the steering gear unit actuator from when the steering reaction force actuator is determined to be malfunctioning to when both the clutches are connected.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: February 28, 2006
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kiyotaka Shitamitsu, Hitoshi Ono, Kazuo Hara
  • Publication number: 20060007917
    Abstract: A frame transfer method transfers frames in a service provider network that couples to a user network in a broadband network in which a plurality of user networks are coupled via the service provider network. The method receives a user frame that is input from a user network by a first edge switch within the service provider network that is coupled to the user network, and adds header information to the user frame in the first edge switch and outputs the frame that is added with the header information from the first edge switch to a core switch within the service provider network.
    Type: Application
    Filed: November 8, 2004
    Publication date: January 12, 2006
    Inventors: Masahiro Saito, Ryo Maruyama, Hitoshi Ono, Kazutaka Kikuta
  • Publication number: 20060006020
    Abstract: A vehicle steering control system is provided with a steering angle ratio varying mechanism, a variable power assisted steering mechanism and a steering angle ratio controller. The steering angle ratio varying mechanism varies the steering angle ratio, which is the ratio of the turning angle of the front wheels with respect to the steering angle of the steering wheel. The variable power assisted steering mechanism outputs an auxiliary steering force that supplements the steering force of the driver to the steering mechanism for turning the front wheels. The steering angle ratio controller increases the steering angle ratio in a steering angle range in the vicinity of the steering angle center point, and reduces the steering angle ratio in the steering angle range in the vicinity of the rack stopper position, regardless of the steering angular speed of the steering wheel.
    Type: Application
    Filed: June 29, 2005
    Publication date: January 12, 2006
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Hitoshi Ono, Youji Hoshino, Katsuhiro Suda, Yoshiki Yasuno
  • Publication number: 20050263339
    Abstract: A steering apparatus for an automotive vehicle is provided with an electric drive unit that varies a steering ratio between a road wheel angle and a steering wheel angle of the vehicle, a temperature sensor that detects a temperature of the electric drive unit, and a control unit including a steering ratio characteristic setting block that sets a characteristic of the steering ratio including a steering gain and a steering response rate in accordance with an operating state of the vehicle and, when the temperature of the electric drive unit exceeds a first temperature threshold, adjusts the steering response rate in such a manner that the steering response rate comes closer to a base steering response rate level as the temperature of the electric drive unit becomes increased and a drive block that drives the electric drive unit to vary the steering ratio according to the steering ratio characteristic.
    Type: Application
    Filed: May 12, 2005
    Publication date: December 1, 2005
    Inventor: Hitoshi Ono