Patents by Inventor Masahiko Kato

Masahiko Kato has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Fuel supply for direct injected engine
    Patent number: 6604512
    Abstract: An improved fuel supply arrangement for a direct fuel injected engine. In one feature, the fuel supply arrangement comprises a high pressure fuel pump for developing high pressure in fuel, a fuel injector for directly injecting the fuel into combustion chamber of the engine and a flexible conduit for connecting the high pressure fuel pump and the fuel injector. In another feature that is for a multi-cylinder engine, the fuel supply arrangement comprises a high pressure fuel pump for developing high pressure in fuel, a plurality of fuel injectors for directly injecting the fuel into respective combustion chambers of the engine, a fuel supply rail for supplying the fuel from the high pressure fuel pump to the fuel injectors and a flexible conduit for connecting the high pressure fuel pump and the fuel supply rail.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: August 12, 2003
    Assignee: Yamaha Marine Kabushiki Kaisha
    Inventor: Masahiko Kato
  • Fuel injection system for marine engine
    Publication number: 20030079712
    Abstract: A fuel injection system for a marine engine includes an improved construction that, by the introduction of lubricant into the fuel, inhibits components of the system from rusting in the event that water, particularly salt water, is mixed with the fuel. The engine includes a lubricant delivery system to deliver lubricant to at least one portion of the engine that needs lubrication. A premix lubricant pump is provided for supplying lubricant with the fuel injection device from the lubricant delivery system so as to mix the part of the lubricant to the fuel. An ECU controls an amount of the part of the lubricant so as to be in a proper and extremely small range.
    Type: Application
    Filed: December 10, 2002
    Publication date: May 1, 2003
    Inventors: Masahiko Kato, Hiroaki Takase
  • Watercraft information sharing system
    Publication number: 20030074114
    Abstract: A watercraft information sharing system receives actual watercraft component performance information from participating watercraft and manages the received data at a server in order to provide the combined watercraft component information to registered users. The watercraft information sharing system provides a registered user, a dealer or a manufacturer with the actual performance data of specific combinations of watercraft components. This information allows the user to evaluate the performance of different combinations of watercraft components without having to physically operate watercraft having the combinations of components.
    Type: Application
    Filed: October 2, 2002
    Publication date: April 17, 2003
    Inventors: Takashi Okuyama, Masahiko Kato
  • Lubrication system for two-cycle engine
    Publication number: 20030062007
    Abstract: A lubrication system for two-cycle engine includes a lubricant recess formed in a wall of a crankcase. Oil that becomes deposited within the intake passageway is directed to the lubricant recess preferably by a guide groove and pools adjacently below a connecting rod endcap. As the crankshaft with attached connecting rod rotates, pooled oil is drawn into the interior of the connecting rod endcap. Preferably, oil holes are formed radially outward through the connecting rod endcap to throw collected oil around the crankcase chamber when exposed to a centrifugal force.
    Type: Application
    Filed: September 26, 2002
    Publication date: April 3, 2003
    Inventor: Masahiko Kato
  • Lubrication system for two-cycle engine
    Publication number: 20030062006
    Abstract: A lubrication system for a two-cycle engine includes an oil delivery system for delivering oil to an air intake passageway of the engine. Oil is mixed with the intake air in the intake passageway and is then carried by the intake air into the crankcase chamber and combustion chamber, thereby lubricating the components therein. The oil delivery system includes an oil discharge pipe in communication with the intake passageway and is generally located adjacent an upper surface of the intake passageway.
    Type: Application
    Filed: September 24, 2002
    Publication date: April 3, 2003
    Inventor: Masahiko Kato
  • Fuel injection system for marine engine
    Patent number: 6516756
    Abstract: A fuel injection system for a marine engine includes an improved construction that, by the introduction of lubricant into the fuel, inhibits components of the system from rusting in the event that water, particularly salt water, is mixed with the fuel. The engine includes a lubricant delivery system to deliver lubricant to at least one portion of the engine that needs lubrication. A premix lubricant pump is provided for supplying lubricant with the fuel injection device from the lubricant delivery system so as to mix the part of the lubricant to the fuel. An ECU controls an amount of the part of the lubricant so as to be in a proper and extremely small range.
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: February 11, 2003
    Assignee: Sanshin Kogyo Kabushiki Kaisha
    Inventors: Masahiko Kato, Hiroaki Takase
  • Method for controlling exhaust emissions in direct injected engine
    Patent number: 6499292
    Abstract: An direct injected internal combustion engine includes a catalytic device for cleaning the exhaust gases of the engine. A control system of the engine is configured to adjust at least one of fuel injection timing, fuel injection duration and ignition timing so as to increase the temperature of the exhaust gases entering the catalytic device.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: December 31, 2002
    Assignee: Sanshin Kogyo Kabushiki Kaisha
    Inventor: Masahiko Kato
  • Fuel system for outboard motor engine
    Patent number: 6494755
    Abstract: A fuel system for an outboard motor includes a plurality of high-pressure pumps and a conduit circuit with a multi-branched passage connecting the engine's combustion chamber(s) to the fuel supply. At least two sections of the conduit circuit may be connected together at a point downstream of the high-pressure pumps. The high-pressure pumps also may be driven by a common pump drive unit, which may be designed to drive the pumps in a manner providing a generally uniform flow of fuel.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: December 17, 2002
    Assignee: Sanshin Kogyo Kabishiki Kaisha
    Inventor: Masahiko Kato
  • Fuel supply for direct injected engine
    Publication number: 20020185113
    Abstract: An improved fuel supply arrangement for a direct fuel injected engine. In one feature, the fuel supply arrangement comprises a high pressure fuel pump for developing high pressure in fuel, a fuel injector for directly injecting the fuel into combustion chamber of the engine and a flexible conduit for connecting the high pressure fuel pump and the fuel injector. In another feature that is for a multi-cylinder engine, the fuel supply arrangement comprises a high pressure fuel pump for developing high pressure in fuel, a plurality of fuel injectors for directly injecting the fuel into respective combustion chambers of the engine, a fuel supply rail for supplying the fuel from the high pressure fuel pump to the fuel injectors and a flexible conduit for connecting the high pressure fuel pump and the fuel supply rail.
    Type: Application
    Filed: July 22, 2002
    Publication date: December 12, 2002
    Inventor: Masahiko Kato
  • Fuel injector mounting arrangement
    Publication number: 20020152995
    Abstract: A mounting arrangement for a fuel injector comprises a cylinder head, a mounting bore formed in the cylinder head, a seat surface formed within the mounting bore, a fuel injector positioned within the mounting bore and comprising a seating surface, at least one sealing ring disposed about a portion of the fuel injector and positioned between the seating surface and the seat surface. The ring comprises a thermal insulator material and a resin material. The ring also comprises a deformable eyelet that expands radially inward in response to compressive axial forces. The resin material thermally activates at a temperature within the operating temperature range of the engine.
    Type: Application
    Filed: June 17, 2002
    Publication date: October 24, 2002
    Inventor: Masahiko Kato
  • High pressure fuel pump
    Patent number: 6460407
    Abstract: A number of embodiments of direct injected V-type outboard motors provided with a very effective fuel supply system wherein the number of components can be significantly reduced as well as the elimination of many of the flexible conduits normally employed. This also permits the fuel system to be assembled as a relatively unitary assembly that can be then affixed to the engine. The arrangement is such that purging of the system from vapors during shutdowns is easily accomplished and the system can be purged without complicated construction. Furthermore, the system can be pressure tested by an arrangement where the low pressure system can bypass the high pressure system when the engine is not operating so as to be pressurized for testing purposes. However, when the high pressure system operates, then the bypass line will be closed by the shunting valve arrangement.
    Type: Grant
    Filed: August 10, 1998
    Date of Patent: October 8, 2002
    Assignee: Sanshin Kogyo Kabushiki Kaisha
    Inventor: Masahiko Kato
  • Fuel supply for direct injected engine
    Patent number: 6460511
    Abstract: An improved fuel supply arrangement for a direct fuel injected engine. In one feature, the fuel supply arrangement comprises a high pressure fuel pump for developing high pressure in fuel, a fuel injector for directly injecting the fuel into combustion chamber of the engine and a flexible conduit for connecting the high pressure fuel pump and the fuel injector. In another feature that is for a multi-cylinder engine, the fuel supply arrangement comprises a high pressure fuel pump for developing high pressure in fuel, a plurality of fuel injectors for directly injecting the fuel into respective combustion chambers of the engine, a fuel supply rail for supplying the fuel from the high pressure fuel pump to the fuel injectors and a flexible conduit for connecting the high pressure fuel pump and the fuel supply rail.
    Type: Grant
    Filed: May 13, 1999
    Date of Patent: October 8, 2002
    Assignee: Sanshin Kogyo Kabushiki Kaisha
    Inventor: Masahiko Kato
  • Gasket for bypass type prefilled syringe
    Publication number: 20020138043
    Abstract: In a bypass type prefilled syringe having a tubular body formed with a bypass for establishing communication between front and rear compartments for preliminarily storing medicament and pharmaceutical liquid, respectively, a gasket for dividing interior space of the tubular body into the front and rear compartments includes a plurality of circumferential ribs, a plurality of annular recesses each formed between neighboring ones of the circumferential ribs and first and second axial slots formed on the circumferential ribs so as to define a bent outflow path for the pharmaceutical liquid at the time of communication between the front and rear compartments via the bypass.
    Type: Application
    Filed: March 8, 2002
    Publication date: September 26, 2002
    Inventors: Nobuyoshi Tanaka, Masahiko Kato
  • Fuel injection system for outboard motor
    Patent number: 6435161
    Abstract: An engine of an outboard motor includes a fuel injection system. In a preferred mode, the fuel injection system comprises a high pressure fuel system and a vapor separator assembly. The high pressure fuel system includes a fuel injector that is removably attached to the engine. The vapor separator assembly includes a vapor separator and is also removably attached to the engine. The high pressure fuel system and said vapor separator assembly are connected by a quick connector. Preferably, one end of the quick connector is formed from an outlet end of a fuel filter.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: August 20, 2002
    Assignee: Sanshin Kogyo Kabushiki Kaisha
    Inventor: Masahiko Kato
  • Oil injection lubrication system for two-cycle engines
    Publication number: 20020108590
    Abstract: The present invention provides an improved oil injection lubrication system for two-cycle engines. The system includes an oil tank having a recess and a number of raised portions that allow the tank to be mounted to an engine in a compact configuration proximate a flywheel without interference while providing a passageway for control lines and fluid conduits in the recess. In one embodiment, the system is included in an outboard marine motor. In this embodiment, the oil tank is preferably configured to have an inlet that remains above a maximum oil level even when the outboard motor is raised to a fully tilt-up position to prevent backflow or siphoning of oil back into a supply tank in the hull of a watercraft.
    Type: Application
    Filed: March 26, 2002
    Publication date: August 15, 2002
    Inventor: Masahiko Kato
  • Fuel injector mounting arrangement
    Patent number: 6427667
    Abstract: A mounting arrangement for a fuel injector comprises a cylinder head, a mounting bore formed in the cylinder head, a seat surface formed within the mounting bore, a fuel injector positioned within the mounting bore and comprising a seating surface, at least one sealing ring disposed about a portion of the fuel injector and positioned between the seating surface and the seat surface. The ring comprises a thermal insulator material and a resin material. The ring also comprises a deformable eyelet that expands radially inward in response to compressive axial forces. The resin material thermally activates at a temperature within the operating temperature range of the engine.
    Type: Grant
    Filed: May 23, 2000
    Date of Patent: August 6, 2002
    Assignee: Sanshin Kogyo Kabushiki Kaisha
    Inventor: Masahiko Kato
  • Battery
    Patent number: D471863
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: March 18, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masumi Katsumoto, Masaharu Miyahisa, Masahiko Kato, Yoshihiro Boki
  • Battery
    Patent number: D471864
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: March 18, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masumi Katsumoto, Masaharu Miyahisa, Masahiko Kato, Yoshihiro Boki
  • Battery
    Patent number: D476619
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: July 1, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masumi Katsumoto, Masaharu Miyahisa, Masahiko Kato, Yoshihiro Boki
  • Battery
    Patent number: D477276
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: July 15, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masumi Katsumoto, Masaharu Miyahisa, Masahiko Kato, Yoshihiro Boki