Buena Park, CA, United States
Buena Park, CA, United States

Yamaha Corporation is a Japanese multinational corporation and conglomerate based in Japan with a very wide range of products and services, predominantly musical instruments, electronics, motorcycles and power sports equipment. Wikipedia.


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Patent
Yamaha | Date: 2017-05-03

A left shock absorbing device is provided with a left front outer tube, a left rear outer tube, a left front inner tube, a left rear inner tube and a left connecting member. The left front outer tube and the left rear outer tube are supported on a left bracket. The left front inner tube is connected to the left front outer tube so as to be slidable in an interior of the left front outer tube along a left telescopic axis. The left rear inner tube is connected to the left rear outer tube so as to be slidable in an interior of the left rear outer tube along the left telescopic axis. The left connecting member connects the left front outer tube and the left rear outer tube.


Patent
Yamaha | Date: 2017-05-17

An electric propulsion machine (1) includes an electric motor (6), an electric motor control circuit (51), a propulsion mechanism (4) to generate thrust from an output of the electric motor, and a battery unit (20) to supply electric power to the electric motor. The battery unit (20) includes a mode-setting manipulation element to accept a designation of an operating mode. The electric motor control circuit (51) outputs a control signal for controlling the electric motor based on an operating mode which is designated from among plural operating modes.


A cellulose fiber can reduce environmental burden while providing an enhanced modulus of elasticity easily and reliably. A composite material contains the cellulose fiber. A method of producing the cellulose fiber includes preparing a solution where needle-shaped phases each comprising a cellulose I crystal structure are dispersed in a matrix phase comprising a cellulose II crystal structure. The cellulose fiber includes the matrix phase and the needle-shaped phases contained in the matrix phase and the needle-shaped phases are oriented along an axial direction.


A boat maneuvering control method for a boat (1) provided with a propulsion device (3) includes acquiring a target orientation, acquiring the actual orientation of the boat, setting a target yaw rate value based on orientation information of at least one of the target orientation and the actual orientation, detecting the actual yaw rate value of the boat, and controlling the direction of the thrust force of the propulsion device based on the target yaw rate value and the actual yaw rate value.


A pouring cup position detection system (100) includes an image processing device (10) including an imager (12) which moves relative to the mold (M); and at least one marker (20) provided on the mold and positioned relative to the pouring cup (1g). The imager captures an image containing at least one marker. Based on the image captured by the imager, the image processing device generates information concerning the position of the pouring cup.


In a first step, a command signal for activating an automatic cruise function is received. In a second step, a target vessel velocity of a watercraft is set. In a third step, an actual vessel velocity of the watercraft is obtained. In a fourth step, a command signal is generated that is a signal for performing an automatic cruise control for controlling a thrust of the watercraft such that a difference between the target vessel velocity and the actual vessel velocity falls in a predetermined range of value. In a fifth step, it is determined whether or not a predetermined interruption condition has been established. In a sixth step, a command signal is generated that is a signal for performing the automatic cruise control with the thrust having a different magnitude from the thrust to be generated under normal circumstances without establishment of the interruption condition when the interruption condition has been established.


Patent
Yamaha | Date: 2017-05-31

During start-up of an engine, a reverse rotation start-up operation of rotating a crankshaft in a forward direction is performed after rotation of the crankshaft in a reverse direction. In the operation, a fuel injection device injects fuel such that a fuel-air mixture is introduced into a combustion chamber from an intake passage through an intake port, at at least one of a time when the crankshaft is rotated in the reverse direction and a crank angle is in a start-up intake range and a time when the crankshaft is rotated in the forward direction and the crank angle is in the normal intake range, and an ignition device ignites the fuel-air mixture in the combustion chamber when the crank angle is in a start-up ignition range. An engine unit is controlled such that the operation is performed again, in a case in which a rotation state detected by a rotation state detector does not satisfy a predetermined start-up condition, when the crankshaft is rotated in the forward direction in the operation and before a piston reaches a first compression top dead center.


Patent
Yamaha | Date: 2017-05-31

A rider can switch a control mode between an idle stop mode and a non-idle stop mode by operating an idle stop selection switch. In the idle stop mode, an idle stop and re-start of an engine are automatically performed. On the other hand, in the non-idle stop mode, the idle stop of the engine is not automatically performed. Start-up of the engine by an operation of a kick pedal is allowed only in the case where the control mode is the non-idle stop mode.


Patent
Yamaha | Date: 2017-05-31

A forward rotation positioning operation of rotating a crankshaft in a forward direction is performed before start-up of an engine, and a reverse rotation start-up operation of rotating the crankshaft in a reverse direction is performed during the start-up of the engine. In the forward rotation positioning operation, a rotation driver drives the crankshaft such that a crank angle reaches a predetermined reverse starting range. In the reverse rotation start-up operation, the rotation driver drives the crankshaft such that the crank angle exceeds a predetermined start-up intake range from the reverse rotation starting range and reaches a predetermined start-up ignition range, a fuel injection device injects fuel such that a fuel-air mixture is introduced into a combustion chamber from an intake passage through an intake port, when the crank angle is in the start-up intake range, and an ignition device ignites when the crank angle is in the start-up ignition range. Ignition performed by the ignition device is prevented during the forward rotation positioning operation.


Patent
Yamaha | Date: 2017-04-19

A decorated cast or forged article (2) comprises a printed ink layer (4) including a pigment, a coating layer (3) in contact with a metal top surface (2a) of the cast or forged article (2) and a bottom surface (4b) of the printed ink layer (4, 104), wherein the coating layer (3) has a top surface (3a) which is larger in area than a top surface (4a) of the printed ink layer (4), the top surface (3a) of the coating layer (3) has a surface roughness (31, 32) which is more gentle than a surface roughness (23, 24) of the metal top surface (2a) of the cast or forged article (2), the thickness of at least a part of printed the ink layer (4) is smaller than the maximum thickness of a part in contact with the ink layer (4) of the coating layer (3), and the ink layer (4) is directly printed on the top surface (3a) of the coating layer (3).

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