Patents by Inventor Yoshifumi Iwata

Yoshifumi Iwata 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: 20210148320
    Abstract: A shaft of a valve element has an outer peripheral wall that is slidable along an inner peripheral wall of a cylinder while the shaft is supported by the cylinder so as to enable reciprocation of the shaft in an axial direction. An inner peripheral wall of the armature is slidable along an outer peripheral wall of a valve umbrella of the valve element, and the armature is configured to abut against a surface of the valve element, which is located on a side that is opposite to a valve portion of the valve element. An inner stator is placed on a side of the armature, which is opposite to the valve element. A coil is configured to generate a magnetic flux to magnetically attract the armature toward the inner stator when the coil is energized.
    Type: Application
    Filed: November 17, 2020
    Publication date: May 20, 2021
    Inventor: Yoshifumi IWATA
  • Patent number: 9004445
    Abstract: A press-fit space is formed between a hole end wall portion of a stator core and a closing end wall portion of a stopper, which are axially opposed to each other in a press-fit hole of the stator core. At least one of the hole end wall portion of the stator core and the closing end wall portion of the stopper, which are axially opposed to each other, has a recess that increases a volume of the press-fit space formed between the hole end wall portion of the stator core and the closing end wall portion of the stopper.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: April 14, 2015
    Assignee: Denso Corporation
    Inventor: Yoshifumi Iwata
  • Patent number: 7599773
    Abstract: A parking assist device for assisting parking operation to a target parking position includes an initial position setting device for setting an initial position of the target parking position to park a vehicle, a designation display showing the target parking position, a display position calculation device for calculating an initial display position of the designation display showing the target parking position at a screen showing vehicle surroundings based on the initial position determined by the initial position setting device, and an initial display position shifting device for shifting the initial display position of the designation display to a position within a display range on the screen in case the initial display position calculated by the display position calculation device is positioned outside of the display range on the screen.
    Type: Grant
    Filed: August 30, 2004
    Date of Patent: October 6, 2009
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Yuu Tanaka, Yoshifumi Iwata, Hideyuki Iwakiri, Hisashi Satonaka, Yuichi Kubota, Tomohiko Endo, Akira Matsui, Toru Sugiyama, Seiji Kawakami, Katsuhiko Iwazaki, Hiroaki Kataoka
  • Patent number: 7263420
    Abstract: A vehicle backward movement assist device includes an image capturing means for capturing an image of an outside area in back of a vehicle, a parking mode judging means for judging whether a parking mode by reversing of the vehicle is a back-in parking or a parallel parking, a target parking position inputting means for setting a target parking position where the vehicle is parked based on the parking mode determined by the parking mode judging means, and a displaying means for displaying the image captured by the image capturing means and superimposedly displaying the target parking position set by the target parking position inputting means on the captured image so as to guide the vehicle to the target parking position.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: August 28, 2007
    Assignees: Aisin Seiko Kabushiki Kaisha, Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuu Tanaka, Yoshifumi Iwata, Hisashi Satonaka, Tomohiko Endo, Yuichi Kubota, Akira Matsui, Hideyuki Iwakiri, Toru Sugiyama, Seiji Kawakami, Katsuhiko Iwazaki, Hiroaki Kataoka
  • Patent number: 7233851
    Abstract: A vehicle driving assist apparatus for guiding a vehicle to a target position is provided. A basic path that changes the deflection angle ? to 0 is determined, and is subjected to similarity transformation. On the basis of the similarity-transformed path, a path factoring in transition from the initial steering angle is set. Then, a correction is made such that the area in the running distance-curvature graph regarding this path becomes equal to a corresponding area regarding the basic path, thereby setting a corrected path. The corrected path is similarity-transformed, and then is re-corrected in accordance with transition from the initial steering angle. Thus, a final target path is obtained.
    Type: Grant
    Filed: June 21, 2004
    Date of Patent: June 19, 2007
    Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin Seiki Kabushiki Kaisha
    Inventors: Katsuhiko Iwazaki, Hisashi Satonaka, Yuichi Kubota, Tomohiko Endo, Akira Matsui, Hideyuki Iwakiri, Toru Sugiyama, Seiji Kawakami, Hiroaki Kataoka, Yuu Tanaka, Yoshifumi Iwata
  • Patent number: 7155325
    Abstract: A method for performing a parking assist control for automatically guiding a vehicle to a target parking position includes the steps of calculating a change of a vehicle direction based on a traveling distance of the vehicle and a steering angle obtained by a steering angle sensor, calculating the change of the vehicle direction based on a yaw rate obtained by a yaw rate sensor, and determining whether or not the parking assist control is required to be stopped based on a result of a comparison between the calculated changes of the vehicle direction.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: December 26, 2006
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Yuu Tanaka, Yoshifumi Iwata, Akira Matsui, Hisashi Satonaka, Yuichi Kubota, Tomohiko Endo, Hideyuki Iwakiri, Toru Sugiyama, Seiji Kawakami, Katsuhiko Iwazaki, Hiroaki Kataoka
  • Patent number: 7127339
    Abstract: A driving assist apparatus for a vehicle which calculates a path by an algorithm suitable for real-time path calculation in a vehicle-installed computing device is provided. A basic path that changes the deflection angle of the vehicle to 0 is computed from an initial vehicle position. From the basic path, a target path is computed, for example, by adding straight-line paths to the two opposite ends of the basic path. On the basis of the target path, a driving assist is performed. During the driving assist, a basic path is re-calculated. If it is determined that a similarity-enlarged path obtained through similarity enlargement of the basic path can be used to reach the target position point, a target path is re-set on the basis of the similarity-enlarged path. Then a driving assist is performed on the basis of the re-set target path.
    Type: Grant
    Filed: June 21, 2004
    Date of Patent: October 24, 2006
    Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin Seiki Kabushiki Kaisha
    Inventors: Katsuhiko Iwazaki, Hisashi Satonaka, Yuichi Kubota, Tomohiko Endo, Akira Matsui, Hideyuki Iwakiri, Toru Sugiyama, Seiji Kawakami, Hiroaki Kataoka, Yuu Tanaka, Yoshifumi Iwata
  • Patent number: 7117073
    Abstract: A parking-assist device for an automotive vehicle comprises an imaging unit which creates an image of an exterior behind the vehicle. A target-parking-position input unit inputs a target parking position to park the vehicle when requested. A target-parking-position memory access unit stores the target parking position and reads the stored target parking position when requested. A vehicle-travel-amount detection unit detects an amount of travel of the vehicle. A parking-route determining unit calculates a parking route from a current position of the vehicle to the target parking position. A display unit displays the created image and displays one of the target parking position inputted and the stored target parking position read on the created image in a superimposed manner.
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: October 3, 2006
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tomohiko Endo, Hisashi Satonaka, Yuichi Kubota, Akira Matsui, Hideyuki Iwakiri, Toru Sugiyama, Seiji Kawakami, Katsuhiko Iwazaki, Hiroaki Kataoka, Yuu Tanaka, Yoshifumi Iwata
  • Patent number: 7103461
    Abstract: A driving assist apparatus and method for a vehicle capable of guiding the vehicle at appropriate vehicle speed in accordance with the path is provided. The alarm vehicle speed for informing a driver of overspeed during driving assist is set lower for a changing steer region than for a fixed steer region. The lower alarm vehicle speed is set before the changing steer region is entered. Therefore, in the changing steer region, the vehicle speed can be sufficiently reduced, so that a set amount of steering can be accomplished. In the fixed steer region, the vehicle speed can be increased so as to reduce the time of travel.
    Type: Grant
    Filed: June 21, 2004
    Date of Patent: September 5, 2006
    Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin Seiki Kabushiki Kaisha
    Inventors: Katsuhiko Iwazaki, Hisashi Satonaka, Yuichi Kubota, Tomohiko Endo, Akira Matsui, Hideyuki Iwakiri, Toru Sugiyama, Seiji Kawakami, Hiroaki Kataoka, Yuu Tanaka, Yoshifumi Iwata
  • Patent number: 7099758
    Abstract: A parking assist apparatus includes an initial traveling locus calculator for calculating an initial traveling locus, a new traveling locus calculating a new traveling locus when a deviation amount of the present vehicle position from a current traveling locus is equal to or greater than a first predetermined value, and a parking assist for performing a parking assist to guide the vehicle along the traveling locus. The parking assist apparatus further includes an initial traveling locus deviation calculator for calculating the deviation amount of the present vehicle position from the initial traveling locus generated by the calculation of the initial traveling locus calculator. The parking assist stops performing the parking assist when the deviation amount calculated by the initial traveling locus deviation calculator is equal to or greater than a second predetermined value which is smaller than the fist predetermined value.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: August 29, 2006
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Yuu Tanaka, Yoshifumi Iwata, Hideyuki Iwakiri, Hisashi Satonaka, Yuichi Kubota, Tomohiko Endo, Akira Matsui, Toru Sugiyama, Seiji Kawakami, Katsuhiko Iwazaki, Hiroaki Kataoka
  • Patent number: 7085634
    Abstract: A parking assist apparatus allows a target parking position to be set by a user moving a target parking frame displayed together with an actual image of surroundings of a vehicle, and automatically guides the vehicle to the set target parking position. In the parking assist apparatus, the target parking frame is initially displayed through the use of past setting of the target parking position by the user.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: August 1, 2006
    Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin Seiki Kabushiki Kaisha
    Inventors: Tomohiko Endo, Hisashi Satonaka, Yuichi Kubota, Akira Matsui, Hideyuki Iwakiri, Toru Sugiyama, Seiji Kawakami, Katsuhiko Iwazaki, Hiroaki Kataoka, Yuu Tanaka, Yoshifumi Iwata
  • Patent number: 7076345
    Abstract: A parking assist system for a driver to confirm a relationship between relative positions to obstacles and one's own vehicle. A top plane creating image 7B in which a circumstance situation of one's own vehicle is indicated from a point of upward view is created based on a backward image of one's own vehicle taken by a CCD camera and displayed on a screen of a display. A mobile locus including a marker G of one's own vehicle, a marker, a parking path, and a current position is displayed on the top plane creating image in a duplicate way.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: July 11, 2006
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Yuu Tanaka, Yoshifumi Iwata
  • Patent number: 7075456
    Abstract: A parking assist device includes a leading path generation judging device for judging whether an effective leading path to a target parking position is generated. According to the parking assist device, a parking assist for leading a vehicle to the target parking position is conducted in accordance with a judged result of the leading path generation judging device. The leading path generation judging device includes a first judging device for judging whether the leading path is generated when an initial steering angle of the vehicle is determined as a steering angle initial value, and a second judging device for judging whether the leading path is generated when a steering angle other than the initial steering angle is determined as the steering angle initial value in case it is judged that the leading path is not generated by the first judging device.
    Type: Grant
    Filed: August 30, 2004
    Date of Patent: July 11, 2006
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Yuu Tanaka, Yoshifumi Iwata, Hideyuki Iwakiri, Hisashi Satonaka, Yuichi Kubota, Tomohiko Endo, Akira Matsui, Toru Sugiyama, Seiji Kawakami, Katsuhiko Iwazaki, Hiroaki Kataoka
  • Patent number: 7053794
    Abstract: A parking assist device (1) includes a camera (3) for capturing an image of an exterior of a vehicle, and a monitor (4) for displaying the captured image, and sets a target parking position by moving a target parking frame (11) displayed on a screen of the monitor (4). A default position of the target parking frame (11) is determined based on a target parking position (P2) which is a relative position with respect to a parking preparation position (P1). The target parking position (P2) is estimated based on a running state of the vehicle until the vehicle reaches the parking preparation position (P1).
    Type: Grant
    Filed: January 10, 2003
    Date of Patent: May 30, 2006
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Yuu Tanaka, Yoshifumi Iwata, Tomohiko Endo, Hisashi Satonaka, Mitsuhiko Morita, Seiji Kawakami, Katsuhiko Iwazaki, Hiroaki Kataoka
  • Patent number: 7043346
    Abstract: A parking assist apparatus includes a display unit that displays a target parking frame to be superimposed on an actual image around a vehicle with its position adjustable by a user, a position determining unit that determines a target parking position corresponding to the position of the target parking frame displayed on the actual image, and a parking assist control unit that controls to guide the vehicle to the target parking position on a target path. The parking assist apparatus further includes a feature determining unit that determines a feature on the actual image through an image recognition, and a path correction unit that automatically corrects the target path such that a correlation between the target parking position upon start of a parking assist control and the feature is maintained during execution of the parking assist control.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: May 9, 2006
    Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin Seiki Kabushiki Kaisha
    Inventors: Yuichi Kubota, Hisashi Satonaka, Tomohiko Endo, Akira Matsui, Hideyuki Iwakiri, Toru Sugiyama, Seiji Kawakami, Katsuhiko Iwazaki, Hiroaki Kataoka, Yuu Tanaka, Yoshifumi Iwata
  • Patent number: 7039504
    Abstract: A vehicle backward movement assist device includes a vehicle path determining means for determining a path from a current position of the vehicle moved at a moving amount detected by a vehicle moving amount detecting means to a first target position or a second target position, the vehicle path determining means determining the path by repeatedly calculating the path, and a displaying means for displaying an image of a rear view from a captured by an image capturing means, the displaying means superimposing the first or second target position of the vehicle moved based upon the first or second target position and the detected moving amount on the image of the rear view from the vehicle, the second target position calculated by updating the first target position.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: May 2, 2006
    Assignees: Aisin Seiki Kabushiki Kaisha, Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuu Tanaka, Yoshifumi Iwata, Hisashi Satonaka, Tomohiko Endo, Yuichi Kubota, Akira Matsui, Hideyuki Iwakiri, Toru Sugiyama, Seiji Kawakami, Katsuhiko Iwazaki, Hiroaki Kataoka
  • Patent number: 7012550
    Abstract: Parking assist apparatus and method cause a vehicle driver to set a target parking position in which the vehicle is to be parked by prompting the driver to specify the position of a parking space frame in the screen of a touch display by touch-operating arrow button switches shown in the screen, and then calculate a path to the target parking position. If a path to the target parking position is not generated by calculation, the arrow button switches for moving the parking space frame in such directions that a path will not be generated (i.e., the vehicle cannot be parked), among all the arrow button switches, are made non-displayed or are displayed dimmer than the other arrow button switches, and are disabled.
    Type: Grant
    Filed: March 25, 2004
    Date of Patent: March 14, 2006
    Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin Seiki Kabushiki Kaisha
    Inventors: Hideyuki Iwakiri, Hisashi Satonaka, Yuichi Kubota, Tomohiko Endo, Akira Matsui, Toru Sugiyama, Seiji Kawakami, Katsuhiko Iwazaki, Hiroaki Kataoka, Yuu Tanaka, Yoshifumi Iwata
  • Patent number: 6987656
    Abstract: A relay, a relay unit and an electrical junction box are disclosed as including a plurality of relays (2A˜2D), each of which includes a pair of switch connector circuit components (5a˜5d, 6a˜6d) between which a relay switch (SW) is intervened, a pair of coil connector circuit components (7a˜7d, 8a˜8d) between which a relay coil (L) is intervened, and a plurality of electrically conductive trimmer joint portions (9a˜9j) joined between the respective switch connector circuit components (5a˜5d, 6a˜6d) and the respective coil connector circuit components (7a˜7d, 8a˜8d) and able to be cut out at suitable cutting points to provide a desired mounting circuit profiled in a selected relay circuit pattern.
    Type: Grant
    Filed: August 26, 2004
    Date of Patent: January 17, 2006
    Assignee: Yazaki Corporation
    Inventors: Tsuyoshi Nakamura, Hiroyo Matsumura, Yoshifumi Iwata
  • Patent number: 6950035
    Abstract: A parking assist system includes an image obtaining means for obtaining an image of a view from a vehicle, a displaying means for displaying the image obtained by the image obtaining means in a monitor display provided in the vehicle, an inputting means for inputting a target parking position, at which the vehicle is parked, on the monitor display, a detecting means for detecting a relative relationship between the vehicle and the target parking position, and a judging means for judging whether or not the vehicle can be parked at the target parking position based upon the relative relationship detected by the detecting means.
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: September 27, 2005
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Yuu Tanaka, Yoshifumi Iwata, Hisashi Satonaka, Tomohiko Endo, Mitsuhiko Morita, Katsuhiko Iwazaki, Seiji Kawakami, Hiroaki Kataoka
  • Patent number: 6940423
    Abstract: A back camera image from a back camera mounted on a rear portion of a vehicle body is displayed on a display mounted on the console inside the vehicle cabin when the vehicle is parallel parking. After the vehicle passes a steering direction reversal point in this state, a corner camera image from a corner camera mounted on a corner portion of a front portion of the vehicle body is displayed on the display when the vehicle nears a vehicle parked in front, or, more specifically, when an angle of the vehicle after it has reached the steering direction reversal point has reached a predetermined value. Guidance images may be overlaid upon the camera images during some or all of the parallel parking maneuver.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: September 6, 2005
    Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin Seiki Kabushiki Kaisha
    Inventors: Makoto Takagi, Toshiyasu Katsuno, Kazushi Konno, Toshiaki Kakinami, Yoshifumi Iwata