Patents by Inventor Keisuke Daikoku

Keisuke Daikoku 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).

  • Patent number: 9238503
    Abstract: A transmission is structured to include a drive shaft, a counter shaft, a gear train bridged between each of a drive shaft input shaft and output shaft and the counter shaft, and a dog clutch mechanism selectively switching a high shift speed and a low shift speed in a transmission chamber. In a lower part of a lower bearing of the counter shaft in a bottom part of the transmission chamber, a lower reserve part of lubrication oil is provided, and a lubrication oil pump sending lubrication oil to respective parts of the transmission from the lower reserve part is provided.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: January 19, 2016
    Assignee: SUZUKI MOTOR CORPORATION
    Inventors: Yoshiki Kubo, Keisuke Daikoku, Keiji Imanaga
  • Patent number: 9233743
    Abstract: An engine is housed in an engine case and a propulsion unit driven by the engine is provided outside the engine case. By a swivel bracket installed in a predetermined part of the engine case, the propulsion unit is pivotally supported around a steering shaft, and centers of a drive shaft driving the propulsion unit and of the steering shaft are matched.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: January 12, 2016
    Assignee: SUZUKI MOTOR CORPORATION
    Inventors: Keisuke Daikoku, Tetsushi Achiwa
  • Publication number: 20150017847
    Abstract: A transmission is structured to include a drive shaft, a counter shaft, a gear train bridged between each of a drive shaft input shaft and output shaft and the counter shaft, and a dog clutch mechanism selectively switching a high shift speed and a low shift speed in a transmission chamber. In a lower part of a lower bearing of the counter shaft in a bottom part of the transmission chamber, a lower reserve part of lubrication oil is provided, and a lubrication oil pump sending lubrication oil to respective parts of the transmission from the lower reserve part is provided.
    Type: Application
    Filed: July 9, 2014
    Publication date: January 15, 2015
    Applicant: SUZUKI MOTOR CORPORATION
    Inventors: Yoshiki KUBO, Keisuke DAIKOKU, Keiji IMANAGA
  • Publication number: 20150013486
    Abstract: A transmission is structured to include a drive shaft, a counter shaft disposed in parallel with the drive shaft, a gear train bridged between each of a drive shaft input shaft and output shaft and the counter shaft, and a dog clutch mechanism selectively switching a high shift speed and a low shift speed in a transmission chamber. The transmission includes a drive device driving the dog clutch mechanism constituted of a hydraulic drive device driven by a hydraulic cylinder, the hydraulic cylinder being disposed in the transmission chamber.
    Type: Application
    Filed: July 9, 2014
    Publication date: January 15, 2015
    Applicant: SUZUKI MOTOR CORPORATION
    Inventors: Yoshiki KUBO, Keisuke DAIKOKU, Keiji IMANAGA
  • Patent number: 8668537
    Abstract: An engine case houses engines in the inside of the case and is provided with a propulsion unit outside the case. A case main body housing the engines and assemblies of peripheral parts of the engines, and a case cover covering an opening at an upper portion of the case main body are included. Mufflers are installed on an exterior of a lower surface of the case, and on the lower surface of the case, housing portions housing the mufflers and exhaust hoses are formed.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: March 11, 2014
    Assignee: Suzuki Motor Corporation
    Inventors: Keisuke Daikoku, Tetsushi Achiwa
  • Patent number: 8425268
    Abstract: An electric outboard motor to be driven by an electric motor separately includes an electric outboard motor main body including the electric motor and a propulsion section that applies the electric motor as motive power and a power supply section supplying power to the electric motor, in which the electric outboard motor main body and the power supply section are detachably connected by couplers via a cable. Further, the coupler of the cable is allowed to be attached and detached to and from the coupler on a side of the power supply section.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: April 23, 2013
    Assignee: Suzuki Motor Corporation
    Inventors: Keisuke Daikoku, Tetsushi Achiwa, Masatoshi Kimpara
  • Patent number: 8333626
    Abstract: A power unit is housed in a casing, and a screw (propeller) is disposed outside the casing, the screw being driven by the power unit. The casing is formed as a watertight case in a substantially rectangular parallelepiped shape with a left-right width direction being a longitudinal direction, and the case has at least a front face portion coupled to a stern portion and a substantially flat upper face portion at a substantially same height as a top portion of the stern portion.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: December 18, 2012
    Assignee: Suzuki Motor Corporation
    Inventor: Keisuke Daikoku
  • Publication number: 20120304625
    Abstract: A water jacket is attached to an exhaust manifold connected to an exhaust port to annularly cover an outer side of an exhaust channel in the exhaust manifold. An engine cooling coolant is made to flow as a cooling medium of the water jacket of the exhaust manifold. An exhaust pipe in a siphon shape is connected to the exhaust manifold, a water jacket is attached so as to annularly cover an outer side of a front half portion of the siphon shape, and seawater is directly supplied into the water jacket to flow therein. Consequently, an exhaust device of an outboard motor practically having a compact structure and excellent exhaust performance and accordingly realizing excellent engine performance is provided.
    Type: Application
    Filed: May 29, 2012
    Publication date: December 6, 2012
    Applicant: SUZUKI MOTOR CORPORATION
    Inventors: Keisuke Daikoku, Tetsushi Achiwa
  • Publication number: 20120286129
    Abstract: An engine is housed in an engine case and a propulsion unit driven by the engine is provided outside the engine case. By a swivel bracket installed in a predetermined part of the engine case, the propulsion unit is pivotally supported around a steering shaft, and centers of a drive shaft driving the propulsion unit and of the steering shaft are matched.
    Type: Application
    Filed: May 7, 2012
    Publication date: November 15, 2012
    Applicant: SUZUKI MOTOR CORPORATION
    Inventors: Keisuke Daikoku, Tetsushi Achiwa
  • Patent number: 8298023
    Abstract: There is provided a hybrid outboard motor capable of transmitting motive power of a power source appropriately and efficiently in a limited space while achieving compactness, high performance, and the like. The hybrid outboard motor includes: a casing; a power unit housed in the casing; a screw disposed outside the casing, the screw being driven by the power unit; a power transmission system transmitting motive power of the power unit to the screw; an internal combustion engine and an electric motor serving also as a generator, the internal combustion engine and the electric motor being arranged in parallel in a beam direction in the casing; and a first clutch disposed between the internal combustion engine and the electric motor, wherein one or both of the internal combustion engine and the electric motor are connected to a propulsion unit including the screw so as to rotate it.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: October 30, 2012
    Assignee: Suzuki Motor Corporation
    Inventor: Keisuke Daikoku
  • Publication number: 20120115376
    Abstract: An engine case houses engines in the inside of the case and is provided with a propulsion unit outside the case. A case main body housing the engines and assemblies of peripheral parts of the engines, and a case cover covering an opening at an upper portion of the case main body are included. Mufflers are installed on an exterior of a lower surface of the case, and on the lower surface of the case, housing portions housing the mufflers and exhaust hoses are formed.
    Type: Application
    Filed: November 8, 2011
    Publication date: May 10, 2012
    Applicant: SUZUKI MOTOR CORPORATION
    Inventors: Keisuke Daikoku, Tetsushi Achiwa
  • Publication number: 20110244740
    Abstract: An electric outboard motor main body including an electric motor and a propulsion section that applies the electric motor as motive power, and a power supply section supplying power to the electric motor and a control section controlling the electric motor that are disposed inside a hull separately from the electric outboard motor main body are provided, and the electric motor and the propulsion section are attached to enable a tilt-up operation via a tilt pin provided in a horizontal direction, and the electric motor is disposed higher than the tilt pin in a state before the tilt-up operation.
    Type: Application
    Filed: February 8, 2011
    Publication date: October 6, 2011
    Applicant: SUZUKI MOTOR CORPORATION
    Inventors: Keisuke Daikoku, Tetsushi Achiwa, Masatoshi Kimpara
  • Publication number: 20110244738
    Abstract: In an electric outboard motor to be driven by an electric motor, the electric motor is formed in a watertight manner and is disposed to be exposed to the outside. Further, the electric motor is an air cooled type, and a shape of the electric motor is in a substantially flat shape in which a dimension in a horizontal direction perpendicular to an output shaft of the electric motor is made larger than a dimension in a height direction. The electric motor, when a hull is seen in plan view, is disposed in a manner that a front portion of the electric motor overlaps a transom board of the hull at the rear.
    Type: Application
    Filed: February 7, 2011
    Publication date: October 6, 2011
    Applicant: SUZUKI MOTOR CORPORATION
    Inventors: Keisuke Daikoku, Tetsushi Achiwa, Masatoshi Kimpara
  • Publication number: 20110244739
    Abstract: An electric outboard motor to be driven by an electric motor separately includes an electric outboard motor main body including the electric motor and a propulsion section that applies the electric motor as motive power and a power supply section supplying power to the electric motor, in which the electric outboard motor main body and the power supply section are detachably connected by couplers via a cable. Further, the coupler of the cable is allowed to be attached and detached to and from the coupler on a side of the power supply section.
    Type: Application
    Filed: February 8, 2011
    Publication date: October 6, 2011
    Applicant: SUZUKI MOTOR CORPORATION
    Inventors: Keisuke Daikoku, Tetsushi Achiwa, Masatoshi Kimpara
  • Publication number: 20100248561
    Abstract: There is provided a hybrid outboard motor capable of transmitting motive power of a power source appropriately and efficiently in a limited space while achieving compactness, high performance, and the like. The hybrid outboard motor includes: a casing; a power unit housed in the casing; a screw disposed outside the casing, the screw being driven by the power unit; a power transmission system transmitting motive power of the power unit to the screw; an internal combustion engine and an electric motor serving also as a generator, the internal combustion engine and the electric motor being arranged in parallel in a beam direction in the casing; and a first clutch disposed between the internal combustion engine and the electric motor, wherein one or both of the internal combustion engine and the electric motor are connected to a propulsion unit including the screw so as to rotate it.
    Type: Application
    Filed: March 25, 2010
    Publication date: September 30, 2010
    Applicant: SUZUKI MOTOR CORPORATION
    Inventor: Keisuke DAIKOKU
  • Publication number: 20100248562
    Abstract: A power unit is housed in a casing, and a screw (propeller) is disposed outside the casing, the screw being driven by the power unit. The casing is formed as a watertight case in a substantially rectangular parallelepiped shape with a left-right width direction being a longitudinal direction, and the case has at least a front face portion coupled to a stern portion and a substantially flat upper face portion at a substantially same height as a top portion of the stern portion.
    Type: Application
    Filed: March 25, 2010
    Publication date: September 30, 2010
    Applicant: SUZUKI MOTOR CORPORATION
    Inventor: Keisuke DAIKOKU
  • Patent number: 6401681
    Abstract: The present invention provides a four-cycle outboard motor (1),with reduced vibration and improved control stability. The center of gravity is moved forward allowing reduced size. In outboard motor (1), a crank shaft (4) is arranged substantially vertically within an engine (3) so that the rotational force of crank shaft (4) is transmitted to a propulsion unit via a drive shaft (10). The shaft centers of crankshaft 4 and drive shaft 10 are arranged either on an axis (31) of a cylinder constituting engine 3, or on the centerline of engine (3), which extends in the fore-aft direction and passes through the shaft center of crankshaft (4), and in that the shaft center of drive shaft (10) is arranged offset toward the rear of outboard motor (1) from the shaft center of crankshaft (4).
    Type: Grant
    Filed: August 30, 2000
    Date of Patent: June 11, 2002
    Assignee: Suzuki Motor Corporation
    Inventors: Keisuke Daikoku, Masashi Takayanagi
  • Patent number: 6045419
    Abstract: An outboard motor to be mounted to a hull comprises an engine holder connected to the hull, an engine mounted on the engine holder in a perpendicular fashion in which a crank shaft of the engine extends vertically, an oil pan mounted to a lower portion of the engine holder, and an oil pump for supplying an oil stored in the oil pan to the engine, in which the engine including a crank case, a cylinder block and a cylinder head, which are all secured to the engine holder by fastening bolts for improving the rigidity of a mounted engine and that of an assembled outboard motor and simplifying the structure thereof.
    Type: Grant
    Filed: January 23, 1998
    Date of Patent: April 4, 2000
    Assignee: Suzuki Kabushiki Kaisha
    Inventors: Kazuo Mineno, Keisuke Daikoku
  • Patent number: 5975970
    Abstract: An outboard motor comprises an engine holder arranged to be mounted to a hull, an engine disposed in an upper portion of the engine holder in a mounted state thereof, an oil pan disposed in a lower portion of the engine holder, a crank shaft vertically disposed in the engine, a cam shaft disposed to extend in parallel to the crank shaft, and a lubricating device including an oil pump unit disposed to a lower surface of the engine holder and adapted to circulate an oil in the engine. The oil pump unit comprises a pump case having a case body to be mounted to the engine holder, a pump drive shaft operatively connected to the cam shaft for operating the oil pump disposed on the lower surface of the engine holder, suction port and discharge port. The pump drive shaft is detachably connected to the cam shaft to be slidable in a vertical direction in the mounted state, and the suction port and the discharge port operatively communicated with suction port and discharge port of the engine, respectively.
    Type: Grant
    Filed: February 3, 1998
    Date of Patent: November 2, 1999
    Assignee: Suzuki Kabushiki Kaisha
    Inventor: Keisuke Daikoku
  • Patent number: D638855
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: May 31, 2011
    Assignee: Suzuki Motor Corporation
    Inventor: Keisuke Daikoku