Patents Represented by Attorney Ernest A. Beutler
  • Patent number: 6722604
    Abstract: An automatic machine and method of winding of armatures having maximum coil density because the winding nozzle does not enter into the slots between the pole teeth and the wire is directed toward the core portion of the armature during winding to improve coil density.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: April 20, 2004
    Assignee: Kabushiki Kaisha Moric
    Inventors: Tadashi Takano, Susumu Ando, Yoshio Kato
  • Patent number: 6708664
    Abstract: A compact engine assembly employing an auxiliary shaft that drives engine accessories that are disposed on opposite sides of its rotational axis by separate flexible transmitters so as to reduce eccentric loading. Also, the drive pulleys for the accessories are disposed inwardly from one end of the engine so as to maintain a relatively short overall length as well as permitting a narrow width for the engine. An engine oil pump positioned within an engine end wall is also driven from the auxiliary shaft.
    Type: Grant
    Filed: January 15, 2002
    Date of Patent: March 23, 2004
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Shoji Ito
  • Patent number: 6708667
    Abstract: A combustion chamber arrangement for a direct fuel injected internal combustion engine wherein the combustion chamber is formed in part by a recess in the piston head. Fuel is injected into the combustion chamber so as to be introduced on one side of the recess with a spark plug being positioned so that its gap lies diametrically opposite the fuel injector. An arrangement is provided for introducing a swirl to the flow of fuel and the combustion chamber recess is canted so that its lower surface is deeper where the fuel first enters then on the other side so as to improve flame propagation and complete combustion while maintaining a high compression ratio.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: March 23, 2004
    Assignee: Yamaha Hatsudoki Kaibushiki Kaisha
    Inventors: Yuchi Suzuki, Shinichi Kurosawa, Yuji Kinoshita
  • Patent number: 6701893
    Abstract: Two embodiments of engine speed control that avoid undesirable vehicle conditions such as wheel slippage or unintentionally performing a wheelie. This is done by sensing actual conditions, which are likely to result in the undesirable vehicle conditions and only changing the engine output when these exact conditions are found. The conditions sensed are the determination of excessive acceleration in engine speed or in the speed of a shaft associated with the engine or the degree of rotational variation or rotational acceleration.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: March 9, 2004
    Assignee: Kabushiki Kaisha Moric
    Inventors: Naoyo Isoda, Masahiko Enoyoshi
  • Patent number: 6700276
    Abstract: A rotating electrical machine having cooperating rotor and stator, one of which forms a plurality of pole teeth around which individual coils are wound. The coils are connected in a number depending upon the phase and number of poles and the connected coils of each phase are spaced from each other. Crossover wires connect these coil windings of each phase and the crossover wires are affixed by bonding to outstanding tabs that are formed on the outermost laminations of the assembly. This reduces hand labor and insures that the crossover wires will not interfere with other components of the machine or associated driving or driven structures.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: March 2, 2004
    Assignee: Kabushiki Kaisha Moric
    Inventor: Ken Hakamata
  • Patent number: 6695655
    Abstract: An improved tilt piston stroke control arrangement that employs a stroke control valve that controls the tilt stroke by closing a hydraulic conduit at a predetermined stroke position to thus shutting off the feed of hydraulic pressure to the tilt cylinder. Thus, the stroke control valve can be provided in any position in the associated hydraulic circuit. This increases the degree of freedom for layout and makes it possible to achieve a compact layout.
    Type: Grant
    Filed: February 10, 2003
    Date of Patent: February 24, 2004
    Assignee: Soqi Kabushiki Kaisha
    Inventor: Shoji Washizu
  • Patent number: 6691658
    Abstract: Several embodiments of anti-rotation devices for precluding rotation of the valve actuating lifters or tappet bodies caused by the action of the cam lobe on the engaged surface of the lifter. In each embodiment, the anti-rotation function is achieved without adding to the reciprocating masses of the engine.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: February 17, 2004
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Hideo Fujita, Shigenobu Uchiyama
  • Patent number: 6685126
    Abstract: Armature structures and methods that provide very dense coil windings and afford very rapid winding methods at a relatively low cost. In addition the likelihood of damaging the already wound wires by contact with the winding nozzle is substantially eliminated. This is achieved by moving the winding needle in varying distances and directions away from the pole teeth to induce varying degrees of slack in the wire during the winding and when the needle is not in the slot between the pole teeth.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: February 3, 2004
    Assignee: Kabushiki Kaisha Moric
    Inventors: Tadashi Takano, Susumu Ando, Yoshio Kato
  • Patent number: 6685127
    Abstract: An automatic machine and method of winding of armatures having maximum coil density because the winding nozzle does not enter into the slots between the pole teeth and the wire is restrained at at least one the ends of the core portion of the armature to facilitate winding.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: February 3, 2004
    Assignee: Kabushiki Kaisha Moric
    Inventors: Tadashi Takano, Susumu Ando, Yoshio Kato
  • Patent number: 6682376
    Abstract: A hydraulic tilt and trim device for a marine propulsion unit and a method of forming such a device. This is done by utilizing a cast in pipe that is cast into the molded housing assembly for the tilt and trim device and which can be subsequently machined so as to form complete passages for the hydraulic system and thus minimizing the number of drilled and bored passages that must be formed.
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: January 27, 2004
    Assignee: Soqi Kabushiki Kaisha
    Inventor: Hideaki Saito
  • Patent number: 6683391
    Abstract: A method and apparatus of vehicle theft prevention, which utilizes a key having a transponder bearing an ID and a key cylinder, that is adapted to receive this key and which has an antenna for supplying electrical power to the transponder and receiving an ID signal back from it. This system permits easy correction of incorrectly set original IDs or the simple substitution of a new key or an old master key as a new master key into a vehicle wherein the lock cylinder must be replaced due to a defect. Also there is provided a holding circuit for permitting continued operation of the prime mover until the recognized key is shut off regardless of the condition of the controller.
    Type: Grant
    Filed: August 9, 2000
    Date of Patent: January 27, 2004
    Assignee: Kabushiki Kaisha Moric
    Inventors: Masahiko Enoyoshi, Masayuki Yamamoto, Naoya Isoda
  • Patent number: 6679107
    Abstract: An improved timing sensor for an internal combustion engine that cooperates with the camshaft and is mounted on a bearing cap of the camshaft. The timing sensor and bearing cap extend through an opening in a cam cover that encloses the area where the camshaft is journaled so that the timing sensor can be removed without removing the cam cover.
    Type: Grant
    Filed: August 16, 1995
    Date of Patent: January 20, 2004
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Katsumasa Ono, Kenji Komatsu
  • Patent number: 6680553
    Abstract: A brushless DC rotating machine that employs permanent magnets on the rotor and a magnet carrier that is juxtaposed to the rotor and which cooperates with a sensor for providing signals indicative of the angular position of the rotor. The magnets are carried by a magnet carrier that is disposed radially inwardly of the armature windings of the stator so as to provide a compact assembly.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: January 20, 2004
    Assignee: Kabushiki Kaisha Moric
    Inventor: Tadashi Takano
  • Patent number: 6679213
    Abstract: An improved DC electrical starting motor and method for starting internal combustion engines that reduces starter motor noise in the period after the engine starts by effecting breaking of the starter motor shaft at that time. Preferably the braking is accomplished by regenerative braking.
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: January 20, 2004
    Assignee: Kabushiki Kaisha Moric
    Inventor: Yoshikazu Kurita
  • Patent number: 6672418
    Abstract: A simplified and low cost torque sensor for a motor assisted manually operated vehicle. The torque sensor is operated by a differential transmission that transmits no driving force for the vehicle. Thus it can be constructed from low cost light weight materials such as aluminum or plastics. This also provides more latitude in the placement of the sensor. A variety of possible differential transmissions are disclosed utilizing either one or two coupled planetary transmissions.
    Type: Grant
    Filed: June 25, 1999
    Date of Patent: January 6, 2004
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Satoshi Makino
  • Patent number: 6640777
    Abstract: An improved method and system for the control of an engine fuel injection system. The control senses the speed variations either during a portion of a complete cycle and a complete cycle and/or from cycle to cycle in order to determine the load on the engine from preprogrammed maps based upon the engine characteristics. From this load and the speed reading, it is possible to obtain the desired engine fuel injection control. This not only reduces the costs of the system by reducing the number of sensors, but also permits adjustments to be made more rapidly.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: November 4, 2003
    Assignee: Kabushiki Kaisha Moric
    Inventors: Masahiko Enoyoshi, Shiro Asaeda
  • Patent number: 6640757
    Abstract: An improved arrangement for controlling the valve operation of an internal combustion engine wherein the control valves are mounted within perpendicularly extending bores formed in the cylinder head and camshaft bearing cap with the bores being deep enough so that the valves do not project significantly beyond the cylinder head. In addition, one or more of the connecting passages are formed by grooves in the mating surfaces of the cylinder head and bearing cap to avoid the necessity of drillings and particularly of drilling blind bores.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: November 4, 2003
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Masahiro Uchida
  • Patent number: 6642739
    Abstract: A single apparatus for magnetizing permanent magnet segments mounted on a cylindrical shell for use in a flywheel magneto or the like. Not only are the segments magnetized but also their magnetic strength is measured when the magnetized element is moved out of the magnetizing section. Prior to that, however, the circumferential location of the timing mark on the flywheel is also verified, within the single apparatus.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: November 4, 2003
    Assignee: Kabushiki Kaisha Moric
    Inventors: Kazuyoshi Takagi, Takahiro Yamamoto
  • Patent number: 6637406
    Abstract: A fuel injection system for an internal combustion engine, and particularly a supercharged one that employs both an in-cylinder injector and a manifold injector. By using two fuel injectors, one in-cylinder and one in the intake manifold, it is possible to operate under light loads with stratified charge and obtain a good homogenous mixture for combustion in other engine speed and load ranges.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: October 28, 2003
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Tetsurou Yamada, Katsuhiko Kikuchi
  • Patent number: 6633102
    Abstract: An armature for a rotating electrical machine and more particularly to an insulating cover for the pole teeth around which the windings are formed that has good strength against the winding without risk of damage of the insulator due to increased thickness in the highly stressed areas.
    Type: Grant
    Filed: August 29, 2002
    Date of Patent: October 14, 2003
    Assignee: Kabushiki Kaisha Moric
    Inventors: Kenji Nagai, Hiroaki Kondo, Hisanobu Higashi, Takahiro Matsumoto