Patents Assigned to Yamaha Hatsudoki Kabushiki Kaisha
  • Patent number: 11453467
    Abstract: A control system for posture control tabs of a marine vessel prevents posture control tabs from coming into contact with a foreign object. The posture control tabs are mounted on a stern to control a posture of a hull. Actuators actuate the respective posture control tabs. When it is judged that that the hull is being loaded onto a trailer or it is detected that the hull has entered a speed restriction zone, a controller controls the actuators to position the posture control tabs at retracted positions.
    Type: Grant
    Filed: October 2, 2020
    Date of Patent: September 27, 2022
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Hiroshi Inoue
  • Patent number: 11454158
    Abstract: An outboard motor includes an engine, a first cooling water passage to cool a first cooling target including the engine and through which first cooling water including water from outside an outboard motor body passes, a first pump to pump the first cooling water from outside the outboard motor body to the first cooling water passage, a second cooling water passage to cool a second cooling target different from the first cooling target and through which second cooling water different from the first cooling water passes, and a second pump to pump the second cooling water to the second cooling water passage.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: September 27, 2022
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Kimitaka Saruwatari
  • Patent number: 11453470
    Abstract: A marine vessel electric propulsion system includes an electric motor, a propulsive force generator to be driven by the electric motor to generate a propulsive force, an operator to be operated by a user to adjust the power output of the electric motor, and a controller. The controller is configured or programmed to control the power output of the electric motor based on an operation of the operator, and to change a power output gain characteristic of the electric motor with respect to an operation amount of the operator in response to a gain change command.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: September 27, 2022
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Taichi Sato
  • Patent number: 11453471
    Abstract: A propulsive force suitable to hold a vessel at a target position is determined, by a controller that controls a propulsion device in a fixed point holding mode to hold the position of the vessel. The controller acquires a parameter including the position of the vessel or a vessel speed. The controller determines a target value for the parameter. The controller determines a demand output of the propulsion device within a predetermined upper limit value or less by feedback control according to a deviation between the parameter and the target value. The controller increases the upper limit value when the demand output of the propulsion device is greater than or equal to a first threshold. The first threshold is defined by a predetermined ratio with respect to the upper limit value.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: September 27, 2022
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Kohei Yamaguchi, Yoshikazu Nakayasu
  • Patent number: 11453452
    Abstract: A first inclined surface and a second inclined surface are inclined with respect to an optical axis of a light emitting diode. The first inclined surface guides light from the light emitting diode guided in the first light transmitting portion toward an outside of an outer lens. An inclination angle of the second inclined surface with respect to the optical axis is larger than an inclination angle of the first inclined surface with respect to the optical axis. The second inclined surface reflects the light from the light emitting diode guided in the first light transmitting portion toward the second light transmitting portion and guides the light into the second light transmitting portion.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: September 27, 2022
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Takahiro Yamada, Shizuka Miura
  • Patent number: 11447039
    Abstract: A communication seat-type vehicle having communication seats arranged at locations to allow the passengers seated thereon to talk face-to-face, four wheels including two front wheels and two rear wheels, a driving source configured to apply driving force to at least one of the four wheels, a steering mechanism configured to steer at least one of the four wheels, and a vehicle body frame which is at least partially provided between front ends of the two front wheels and rear ends of the two rear wheels in the vehicle front-rear direction, and in which a cabin space is provided to accommodate the passengers. The vehicle body frame has a front H-shaped frame structure including a ceiling frame, a floor frame provided directly below the ceiling frame, a front H-shaped frame including two front pillars and a front intermediate transverse frame connecting the two front pillars, and a rear frame including two rear pillars.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: September 20, 2022
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Arato Takahashi
  • Patent number: 11448121
    Abstract: An outboard includes a plurality of first branched pipes connected to a plurality of first exhaust ports and a plurality of second branched pipes connected to a plurality of second exhaust ports, respectively, wherein the plurality of first branched pipes are connected to a first collecting pipe and the plurality of second branched pipes are connected to a second collecting pipe. A connector connects the first collecting pipe and the second collecting pipe. The plurality of first branched pipes extend in a direction away from the connector in a plan view, and each includes a first exhaust pathway located farther away from the connector than the first collecting pipe is in the plan view. The plurality of second branched pipes extend in a direction away from the connector in a plan view, and each includes a second exhaust pathway located farther away from the connector than the second collecting pipe.
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: September 20, 2022
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Koichi Nakayama
  • Patent number: 11447223
    Abstract: A control device for a battery of a marine vessel recovers a power storage amount of a chargeable lithium ion battery while protecting the same. When an acquired power storage amount of the lithium ion battery becomes equal to or less than a first predetermined power storage amount, a switch to connect the lithium ion battery and a line or a load is turned off. While the switch is off, as an electric power balance on the line, a power inflow amount, a first power outflow amount, and a second power outflow amount are acquired. Based on the electric power balance acquired while the switch is off, whether a chargeable condition in which the lithium ion battery is chargeable is satisfied is determined. When the chargeable condition is satisfied, the switch is turned on.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: September 20, 2022
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Yuji Ikegaya
  • Patent number: 11441476
    Abstract: A vehicle includes an air-path portion, an engine, and a rotating fan located more rearward than first and second seats. A wind pressure near the air-path portion located on a side surface of the vehicle is detected by a pressure sensor, and based on a detection result, an ECU controls a direction of rotation of the rotating fan. The rotating fan introduces/discharges air to/from an engine room via the air-path portion. If the pressure sensor detects a negative pressure, the rotating fan is controlled so as to discharge air from the engine room via the air-path portion. On the other hand, if the pressure sensor detects zero or a positive pressure, the rotating fan is controlled so as to introduce air to the engine room from the air-path portion.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: September 13, 2022
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Ryoji Nishiwaki
  • Patent number: 11443565
    Abstract: A watercraft includes an information acquirer and a controller. The controller starts data transmission when a communication start condition based on at least one of a reception strength of a radio wave received by a communication terminal from a base station, a rotation speed of an engine, a traveling speed of a hull, and a state of a shift device is satisfied, and does not start the data transmission when the communication start condition is not satisfied.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: September 13, 2022
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Koji Kawase
  • Patent number: 11440438
    Abstract: A vehicle including a front wall to form a cabin space to accommodate passengers, communication seats for the passengers seated thereon to talk face-to-face, and front and rear wheels. Front ends of upper and lower portions of the front wall are positioned forward of a rear end of an intermediate portion of the front wall. The front wall includes a front face-up surface, of which a front end is not forward of the front end of the lower portion of the front wall, and is not rearward of front ends of the front wheels, and of which a rear end is not forward of the front end of the upper portion of the front wall, and is not rearward of the rear end of the intermediate portion of the front wall. A front end of an upper portion of the cabin space is positioned forward of a front end of the intermediate portion of the cabin space.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: September 13, 2022
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Arato Takahashi
  • Patent number: 11440618
    Abstract: An electric assist system for an electric assist vehicle includes a crankshaft rotatable by human power of a rider applied to a pedal, an electric motor that generates an assist power that assists the human power of the rider, a controller that controls a magnitude of the assist power to be generated by the electric motor, and an acceleration sensor that outputs a signal in accordance with an acceleration in a traveling direction of the electric assist vehicle. The controller changes the magnitude of the assist power to be generated by the electric motor in accordance with a change in the acceleration that is associated with an operation of the rider rotating the pedal.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: September 13, 2022
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Mitsuharu Hasumi
  • Patent number: 11440631
    Abstract: A boat includes a hull, a deck, a steering pole, and an information display. An engine is provided in the hull. The deck is mounted on an upper portion of the hull. The steering pole is swingably mounted to the deck via a pivot shaft. The information display is located on the deck in front of the pivot shaft.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: September 13, 2022
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Masaru Suzuki, Tomohiro Suzuki, Sho Kakuta
  • Publication number: 20220281101
    Abstract: An arm revolving-type robot includes a first member, and a second member coupled to the first member so as to be relatively rotatable, at least one of the first member and the second member including an arm portion. The second member includes a member main body portion, a protrusion that is provided on the member main body portion so as to protrude outward from a wall surface of the member main body portion, and that abuts on the first member along with rotation of the second member to regulate a rotation range of the second member, and a shaft-shaped reinforcing member disposed inside the protrusion. The protrusion and a remaining portion of the member main body portion are integrally formed of the same material, and the reinforcing member is disposed from the protrusion to the remaining portion of the member main body portion.
    Type: Application
    Filed: September 2, 2019
    Publication date: September 8, 2022
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Kenji ISHIZUKA
  • Patent number: 11432977
    Abstract: A power assist wheelchair includes a wheel, an electric motor that drives the wheel, an encoder that detects rotation of the electric motor, and a control device that controls the electric motor. The control device includes a total torque value calculator that calculates a total torque value based upon only a detection signal of the encoder, an assist torque value calculator that calculates an assist torque value based upon an output current of the electric motor, a manual torque value calculator that calculates a manual torque value based upon a difference obtained by subtracting the assist torque value from the total torque value, and a target current determiner that determines a target current of the electric motor based upon the manual torque value.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: September 6, 2022
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Hisashi Takahashi, Tatsuki Uemura, Masamitsu Mizuno
  • Patent number: 11433982
    Abstract: An electric outboard motor includes an outboard motor main body that includes an electric motor and a tiller handle that turns together with the outboard motor main body with respect to a hull. The tiller handle includes a handle bar that turns together with the outboard motor main body with respect to the hull, an accelerator grip that is rotatable with respect to the handle bar and that is rotated when the electric motor is rotated, and a shift switch located closer to a distal end of the accelerator grip with respect to a proximal end of the accelerator grip and that is operated when a shift state of the outboard motor main body is switched between a forward mode and a reverse mode.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: September 6, 2022
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Yuki Yamaguchi, Yoshimasa Kan
  • Patent number: 11433758
    Abstract: A recreational off-highway vehicle includes a vehicle frame, a plurality of wheels, a drive source, a vehicle body and a pair of headlights. The vehicle frame includes a front frame, a rear frame and an intermediate frame defining an open passenger compartment between the front and rear frames. The wheels support the vehicle frame. At least one of the wheels is a drive wheel. The drive source supported by the vehicle frame. The vehicle body is provided to the vehicle frame. The vehicle body includes a front grille panel that has an air intake area defined by a plurality of intake air openings. The headlights are located primarily at a middle point of the front grille panel with respect to a vertical direction of the recreational off-highway vehicle.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: September 6, 2022
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Kyle A Marietta
  • Patent number: 11433967
    Abstract: A motorcycle includes left and right side cases respectively configured to be attachable to and detachable from left and right portions of a body frame, left and right rotation supporters that respectively support upper portions of the left and right side cases, and left and right rotation attenuation mechanisms that respectively attenuate rotations of the left and right side cases about first and second axes. The left and right rotation attenuation mechanisms respectively include bolts that respectively extend in directions of the first and second axes, rotation members respectively connected to lower portions of the left and right side cases and being supported by the bolts to be rotatable about third and fourth axes that are different from the first and second axes, and inner outer cylindrical dampers respectively provided between the bolts and the rotation members.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: September 6, 2022
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Kohei Sugawara, Tomoki Onoue, Shinya Yamada, Akiyoshi Endo, Akihiro Suzuki, Yoshinori Teramoto
  • Publication number: 20220276659
    Abstract: An environment map creation device and an environment map creation method according to the present disclosure include creating an environment map for estimating a self-position, based on a first sub-environment map created as an environment map in a first environment and a second sub-environment map created as an environment map in a second environment different from the first environment while including the first environment. A self-position estimation system estimates the self-position by using the environment map for estimating the self-position based on the first sub-environment map in the first environment and the second sub-environment map in the second environment. Further, an autonomous mobile vehicle includes the self-position estimation system and performs autonomous movement.
    Type: Application
    Filed: September 26, 2019
    Publication date: September 1, 2022
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Kenta MIZUI, Haruyasu FUJITA
  • Publication number: 20220279691
    Abstract: A plurality of driven gears respectively provided on the plurality of nozzle shafts are arranged along the peripheral edges of the drive gears and engaged with the drive gears. Accordingly, the plurality of shafts can be turned by turning the drive gears. Moreover, since the turning of the drive gears, which are scissors gears, is transmitted to the nozzle shafts by the engagement of the drive gears and the plurality of respective driven gears, backlash between the drive gears and the driven gears is suppressed, it is not necessary to provide a backlashless gear (scissors gear) on each of the plurality of nozzle shafts, and the cost of the mounting head is suppressed.
    Type: Application
    Filed: October 3, 2019
    Publication date: September 1, 2022
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Shingo YAMAZAKI