Patents Assigned to Yamaha Marin Kabushiki Kaisha
  • Patent number: 7399212
    Abstract: A boat can include batteries, a generator, a remote control unit provided in a hull, and an outboard motor controlled through the remote control unit so as to generate thrust. The batteries and the generator can be connected to the remote control unit and the outboard motor via power supply cables. The remote control unit and the outboard motor can be connected via drive by wire controller area network (“DBW CAN”) cables . At least two systems of power supply cables and at least two systems of DBW CAN cables can also be provided.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: July 15, 2008
    Assignee: Yamaha Marin Kabushiki Kaisha
    Inventor: Takashi Okuyama
  • Patent number: 6878019
    Abstract: A watercraft control system includes a transmitting device and a watercraft control device which receives transmitted signals from the transmitting device and maneuvers the watercraft to a fallen driver, pursues a diver, or the like. The transmitting device can also unlock various devices and systems on the watercraft by generating an authentic ID code. In other embodiments, a signal intensity is monitored to trigger a guidance system, while still other embodiments replace the transmitting device with on-board sonar systems.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: April 12, 2005
    Assignee: Yamaha Marin Kabushiki Kaisha
    Inventors: Isao Kanno, Takashi Okuyama
  • Patent number: 6732576
    Abstract: An outboard motor has a lubricant pump driven by an engine. The lubrication pump circulates lubricant to moving components of the engine through at least one lubricant passage. A pressure sensor is provided along the lubricant passage. The pressure sensor outputs a signal to an evaluator to determine whether a low pressure situation indicative of a malfunction has occurred. An alarm is activated based upon the determination of a malfunction. Activation of the alarm may occur if the engine is not warmed-up, if the engine is operating at a steady speed or encountering slow speed changes or has encountered a rapid speed change for a predetermined period of time. In this manner, false alarms related to pressure variations within the lubricant system may be reduced.
    Type: Grant
    Filed: May 13, 1999
    Date of Patent: May 11, 2004
    Assignee: Yamaha Marin Kabushiki Kaisha
    Inventors: Akihiko Hoshiba, Yasuo Suganuma