Patents Assigned to Yamaha
  • Publication number: 20010027715
    Abstract: Tone control data are stored in a volatile first memory such as a RAM, and a color or other factor of a tone to be generated is set or controlled in accordance with the tone control data. User can set contents of the tone control data stored in the first memory. In response to the setting of the tone control data, the stored contents of the first memory are automatically transferred to and stored into a non-volatile second memory, at which time the tone control data are transferred to the second memory within an idle time period when no other operation is being carried out. A plurality of sets of the tone control data, updated at different time points, are stored in the second memory, and arrangements are also made such that, when an error occurs in the course of newest tone control data, data recovery can be made using the second newest set of the tone control data stored in the second memory.
    Type: Application
    Filed: March 22, 2001
    Publication date: October 11, 2001
    Applicant: Yamaha
    Inventor: Satoru Tsutsumi
  • Patent number: 5338592
    Abstract: The front surface of a wooden overlay sheet, having a wooden material on the front surface thereof, is subjected to a color treatment with a colorant comprising a primer resin; the wooden overlay sheet, which was subjected to color treatment, is positioned in a metal mold for molding, and a transparent resin layer is molded on the front surface thereof by means of injection-molding. Furthermore, a synthetic resin core material is molded on the rear surface of the wooden overlay sheet. A composite molded article is thereby produced, wherein a synthetic resin core material is molded on the rear surface of the wooden overlay material, and a transparent resin layer is molded on the front surface of the wooden overlay sheet. Thus, the present invention enables the enhancement of the outer appearance of the product and the enhancement of the adhesion of the wooden overlay sheet and the transparent resin layer.
    Type: Grant
    Filed: September 8, 1992
    Date of Patent: August 16, 1994
    Assignee: Yamaha
    Inventors: Hisayoshi Ohsumi, Takeshi Matsumoto, Shinji Kato, Mitsuo Ishizuka, Shoichi Kaneko
  • Patent number: 4696363
    Abstract: A motorcycle having an improved, lightweight, high strength frame formed from castings and stampings that are welded to each other.
    Type: Grant
    Filed: August 6, 1986
    Date of Patent: September 29, 1987
    Assignee: Yamaha
    Inventor: Ryuichi Enda
  • Patent number: 4685429
    Abstract: A camshaft drive arrangement for an internal combustion engine including an improved arrangement for adjusting the valve timing during running of the engine. The timing is adjusted by means of a pair of pulleys that are engaged with opposite flights of a timing belt or chain and which are carried by a pivotally supported adjusting lever. The pivotal position of the lever and, according, the valve timing is altered in response to sensed engine conditions.
    Type: Grant
    Filed: October 2, 1985
    Date of Patent: August 11, 1987
    Assignee: Yamaha
    Inventor: Takeshi Oyaizu
  • Patent number: 4685431
    Abstract: A safety device for a fuel injected diesel engine that shuts off the supply of fuel to the injection nozzles when the lubricant level in the reservoir falls below a predetermined amount. The device includes a control lever that can be latched in a fuel supply position and which is released by a solenoid when the pressure of lubricant in the engine lubricating system falls to indicate a low oil level.
    Type: Grant
    Filed: December 16, 1986
    Date of Patent: August 11, 1987
    Assignee: Yamaha
    Inventors: Kazuhiro Kubota, Seiji Kondo
  • Patent number: 4683855
    Abstract: An induction system for an internal combustion engine for improving running throughout the entire engine speed and load ranges. The induction system comprises a first intake passage that serves the chamber through a first intake port and a second intake passage that serves the chamber through second and third intake ports. The effective cross-sectional area of the first intake passage is substantially smaller than that of the second intake passage and staged throttle valves are incorporated so that the charge requirements at low speed are supplied primarily through the first intake passage.
    Type: Grant
    Filed: August 12, 1985
    Date of Patent: August 4, 1987
    Assignee: Yamaha
    Inventor: Franz Laimbock