Patents by Inventor Ken Itou
Ken Itou 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).
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Patent number: 8950779Abstract: A golf cart includes a frame, an adjuster, and a pair of suspension assemblies that reduce changes in camber angles in a pair of wheels caused by an adjustment of a ground clearance. The adjuster includes a pair of first adjusting portions and a pair of second adjusting portions. Each of the first adjusting portions includes a first upper hole and a first lower hole. Each of the second adjusting portions includes a second upper hole and a second lower hole. Each suspension assembly includes a damper and an arm portion. When the golf cart is set to a high ground clearance, the first adjusting portions are installed between the frame and the dampers, and the second adjusting portions are installed between the frame and the arm portions.Type: GrantFiled: July 9, 2014Date of Patent: February 10, 2015Assignee: Yamaha Motor Power Products Kabushiki KaishaInventors: Ryuta Inoue, Ken Itou, Yuya Sato
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Patent number: 8925966Abstract: A golf cart includes a frame, an adjuster, and a pair of suspension assemblies that reduce changes in camber angles in a pair of wheels caused by an adjustment of a ground clearance. The adjuster includes a pair of first adjusting portions and a pair of second adjusting portions. Each of the first adjusting portions includes a first upper hole and a first lower hole. Each of the second adjusting portions includes a second upper hole and a second lower hole. Each suspension assembly includes a damper and an arm portion. When the golf cart is set to a high ground clearance, the first adjusting portions are installed between the frame and the dampers, and the second adjusting portions are installed between the frame and the arm portions.Type: GrantFiled: July 9, 2014Date of Patent: January 6, 2015Assignee: Yamaha Motor Power Products Kabushiki KaishaInventors: Ryuta Inoue, Ken Itou, Yuya Sato
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Publication number: 20140319793Abstract: A golf cart includes a frame, an adjuster, and a pair of suspension assemblies that reduce changes in camber angles in a pair of wheels caused by an adjustment of a ground clearance. The adjuster includes a pair of first adjusting portions and a pair of second adjusting portions. Each of the first adjusting portions includes a first upper hole and a first lower hole. Each of the second adjusting portions includes a second upper hole and a second lower hole. Each suspension assembly includes a damper and an arm portion. When the golf cart is set to a high ground clearance, the first adjusting portions are installed between the frame and the dampers, and the second adjusting portions are installed between the frame and the arm portions.Type: ApplicationFiled: July 9, 2014Publication date: October 30, 2014Inventors: Ryuta INOUE, Ken ITOU, Yuya SATO
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Publication number: 20140319813Abstract: A golf cart includes a frame, an adjuster, and a pair of suspension assemblies that reduce changes in camber angles in a pair of wheels caused by an adjustment of a ground clearance. The adjuster includes a pair of first adjusting portions and a pair of second adjusting portions. Each of the first adjusting portions includes a first upper hole and a first lower hole. Each of the second adjusting portions includes a second upper hole and a second lower hole. Each suspension assembly includes a damper and an arm portion. When the golf cart is set to a high ground clearance, the first adjusting portions are installed between the frame and the dampers, and the second adjusting portions are installed between the frame and the arm portions.Type: ApplicationFiled: July 9, 2014Publication date: October 30, 2014Inventors: Ryuta INOUE, Ken ITOU, Yuya SATO
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Patent number: 8801037Abstract: A golf cart includes a frame, an adjuster, and a pair of suspension assemblies that reduce changes in camber angles in a pair of wheels caused by an adjustment of a ground clearance. The adjuster includes a pair of first adjusting portions and a pair of second adjusting portions. Each of the first adjusting portions includes a first upper hole and a first lower hole. Each of the second adjusting portions includes a second upper hole and a second lower hole. Each suspension assembly includes a damper and an arm portion. When the golf cart is set to a high ground clearance, the first adjusting portions are installed between the frame and the dampers, and the second adjusting portions are installed between the frame and the arm portions.Type: GrantFiled: January 22, 2013Date of Patent: August 12, 2014Assignee: Yamaha Motor Power Products Kabushiki KaishaInventors: Ryuta Inoue, Ken Itou, Yuya Sato
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Publication number: 20140203544Abstract: A golf cart includes a frame, an adjuster, and a pair of suspension assemblies that reduce changes in camber angles in a pair of wheels caused by an adjustment of a ground clearance. The adjuster includes a pair of first adjusting portions and a pair of second adjusting portions. Each of the first adjusting portions includes a first upper hole and a first lower hole. Each of the second adjusting portions includes a second upper hole and a second lower hole. Each suspension assembly includes a damper and an arm portion. When the golf cart is set to a high ground clearance, the first adjusting portions are installed between the frame and the dampers, and the second adjusting portions are installed between the frame and the arm portions.Type: ApplicationFiled: January 22, 2013Publication date: July 24, 2014Applicant: Yamaha Motor Power Products Kabushiki KaishaInventors: Ryuta INOUE, Ken ITOU, Yuya SATO
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Patent number: 8022650Abstract: An apparatus to control an electric motor to drive an electric-powered vehicle includes an accelerator position detector, a current controller to provide current to the electric motor through an inverter, a semiconductor device of the current controller configured to operate the inverter in response to a detected accelerator position, and a torque compensator to supply the electric motor with a modified current of the semiconductor device, wherein the torque compensator is configured to provide the modified current to the electric motor at a predetermined interval of time in response to a temperature increase in the semiconductor device when the detected accelerator position exceeds a predetermined threshold.Type: GrantFiled: August 4, 2008Date of Patent: September 20, 2011Assignee: Nissan Motor Co., Ltd.Inventors: Ken Itou, Hideaki Nakayama
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Patent number: 7887319Abstract: An apparatus for cooling preformed articles, which is capable of very effectively cooling the preformed articles and is, further, capable of sufficiently suppressing or preventing the preformed articles from being locally damaged as a result of coming in contact with each other as they are conveyed neighboring one another in a state of not yet fully cooled. A spray is blown onto the preformed articles 34 conveyed passing through a predetermined conveyer passage 42, a cooling liquid is blown next thereto, and a gas stream is further blown thereto.Type: GrantFiled: September 7, 2006Date of Patent: February 15, 2011Assignee: Toyo Seikan Kaisha, Ltd.Inventors: Kunihiro Takatomi, Shoichiro Takano, Masayuki Sasaki, Ken Itou
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Publication number: 20090229795Abstract: An apparatus for cooling preformed articles, which is capable of very effectively cooling the preformed articles and is, further, capable of sufficiently suppressing or preventing the preformed articles from being locally damaged as a result of coming in contact with each other as they are conveyed neighboring one another in a state of not yet fully cooled. A spray is blown onto the preformed articles 34 conveyed passing through a predetermined conveyer passage 42, a cooling liquid is blown next thereto, and a gas stream is further blown thereto.Type: ApplicationFiled: September 7, 2006Publication date: September 17, 2009Applicant: TOYO SEIKAN KAISHA, LTD.Inventors: Kunihiro Takatomi, Shoichiro Takano, Masayuki Sasaki, Ken Itou
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Publication number: 20090042688Abstract: An apparatus to control an electric motor to drive an electric-powered vehicle includes an accelerator position detector, a current controller to provide current to the electric motor through an inverter, a semiconductor device of the current controller configured to operate the inverter in response to a detected accelerator position, and a torque compensator to supply the electric motor with a modified current of the semiconductor device, wherein the torque compensator is configured to provide the modified current to the electric motor at a predetermined interval of time in response to a temperature increase in the semiconductor device when the detected accelerator position exceeds a predetermined threshold.Type: ApplicationFiled: August 4, 2008Publication date: February 12, 2009Applicant: NISSAN MOTOR CO., LTD.Inventors: Ken Itou, Hideaki Nakayama
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Publication number: 20070102207Abstract: A hybrid vehicle drive control system is configured to perform engine startup when switching from an electric drive mode to a hybrid drive mode, without creating a sense of output torque loss. In particular, a controller selectively controls a first clutch disposed between the engine and the motor/generator and a second clutch disposed between the motor/generator and a drive wheel to switch between an electric drive mode in which the first clutch is released and the second clutch is engaged, and a hybrid drive mode in which both the first and second clutches are engaged. The controller sets the second torque transfer capacity to a value that is more than zero and less than the target motor/generator torque of the motor/generator when switching from the electric drive mode to the hybrid drive mode and when starting the engine.Type: ApplicationFiled: November 6, 2006Publication date: May 10, 2007Applicant: Nissan Motor Co., Ltd.Inventors: Tsuyoshi Yamanaka, Kazuyuki Kouno, Munetoshi Ueno, Tadashi Okuda, Shinichiro Joe, Taiichi Onoyama, Terumasa Hidaka, Haruhisa Tsuchikawa, Ken Itou, Kazutaka Adachi
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Publication number: 20070007694Abstract: When compression molding is performed continuously, lumps of molten synthetic resin (drops), which are supplied by extrusion, are continuously, accurately, and rapidly inserted into plurality of compression molding dies which are rotatingly movable. A method and device for continuously supplying drops into female moldings which are rotatingly movable for manufacturing moldings, wherein synthetic resin in molten condition extruded from an extrusion opening is cut by a cutter attached to a holding mechanism to form the molten resin into drops in a determined quantity, the drops are held and conveyed by the holding mechanism, and the drops are forcibly inserted and supplied into the concaves of the female moldings.Type: ApplicationFiled: July 13, 2004Publication date: January 11, 2007Applicant: TOYO SEIKAN KAISHA, LTD.Inventors: Satoru Nemoto, Yoshihiko Kimura, Ken Itou, Shoichiro Takano, Hiroyuki Hashimoto, Masayuki Sasaki
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Patent number: 6636274Abstract: When an anomaly occurred in an optical system or light sources of a rear projection TV in which laser beams are employed as a light source, the anomaly is detected by sensors, the detected anomaly is transmitted to a microcomputer, and according to a signal from the microcomputer a laser light source control portion controls the laser beams from the laser light sources so as to stop or decrease generation of the laser beams. Thereby, danger is prevented in advance from being afflicted on a viewer.Type: GrantFiled: August 10, 1999Date of Patent: October 21, 2003Assignee: Kabushiki Kaisha ToshibaInventors: Naoki Mazda, Ken Itou
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Patent number: 6345138Abstract: To obtain an inexpensive, high-power optical fiber output semiconductor device, an edge emitting type semiconductor element, a tapered optical waveguide having a structure for accommodating expansion and contraction due to a change in temperature, and an optical fiber are prepared separately. One edge of the tapered optical waveguide is butt-joined to an output face of the edge emitting type semiconductor element. The other edge of the tapered optical waveguide is connected to the optical fiber.Type: GrantFiled: December 9, 1999Date of Patent: February 5, 2002Assignee: Kabushiki Kaisha ToshibaInventors: Kiyoyuki Kawai, Ritsuo Yoshida, Masanobu Kimura, Ken Itou, Kazuyoshi Fuse
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Patent number: 6320885Abstract: In an up-conversion laser using Tm, blue light having a wavelength of 450 nm and blue light having a wavelength of 480 nm are outputted simultaneously. A high output is enabled with a high efficiency, and a green up-conversion laser is also realized by a similar means. A hybrid fiber laser apparatus includes a light source which outputs light near a wavelength A, and comprises a means for reflecting light near the wavelength A, which is provided at another end of the optical fiber, thereby to form an optical resonator for the wavelength A. In this hybrid fiber laser apparatus, an up-conversion fiber is provided in the optical resonator for the wavelength A, and optical resonator structures for a wavelength B constructed by reflection means and for a wavelength B are respectively provided at two positions at both ends of the up-conversion fiber.Type: GrantFiled: September 3, 1999Date of Patent: November 20, 2001Assignee: Kabushiki Kaisha ToshibaInventors: Kiyoyuki Kawai, Ritsuo Yoshida, Ken Itou, Hideaki Okano
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Patent number: 6274998Abstract: A controller for electric vehicles comprising a vector control inverter for controlling motors, which drive wheels of the electric vehicles, by dividing the primary current of the motors into an exciting current component and a torque current component, and controlling respective of the current components based on a respectively designated command, characterized in further comprising a dectector for detecting a wheel velocity (including a rotor frequency of the motor proportional to the wheel velocity), a detector for detecting slipping and skidding of the wheel based on a differential value (a changing rate with time) of the detected wheel velocity, a dectector for detecting re-adhesion of the wheel based on the differential value and a twice differential value of the detected wheel velocity, and an adjuster for adjusting the designated command for the torque current component in response to the detectors.Type: GrantFiled: March 17, 2000Date of Patent: August 14, 2001Assignee: Hiatchi, Ltd.Inventors: Takashi Kaneko, Takeshi Ando, Akira Horie, Ken Itou
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Patent number: 5959572Abstract: A preceding-vehicle follow-up control apparatus is arranged to calculate a target vehicle speed for following-up a preceding vehicle at a target vehicle-to-vehicle distance. The target vehicle speed is calculated from an equation having a form of a linear combination of a form which includes a linear connection between a product of a first gain and a difference between the vehicle-to-vehicle distance and the target vehicle-to-vehicle distance and a product of a second gain and the relative speed. The control apparatus controls a driving apparatus and a transmission apparatus of a vehicle so as to adjust a vehicle speed at the target vehicle speed. This enables the vehicle-to-vehicle distance to be converged into a target value without excessively increasing or decreasing the relative speed during this follow-up control.Type: GrantFiled: March 27, 1998Date of Patent: September 28, 1999Assignee: Nissan Motor Co., Ltd.Inventors: Akira Higashimata, Ken Itou
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Patent number: 5951438Abstract: A vehicle having an antilock brake system to control a brake so as to suppress locking of wheels when a slip ratio of the wheels exceeds a predetermined value is also provided with a continuously variable transmission (CVT). When antilock brake control is being performed, a drive shaft torque controller computes a command torque of an engine and command drive ratio of the CVT so that a drive shaft torque is a predetermined torque. An engine controller controls the engine according to the command torque and a CVT controller controls the transmission according to the command drive ratio.Type: GrantFiled: August 12, 1998Date of Patent: September 14, 1999Assignee: Nissan Motor Co., Ltd.Inventors: Kazutaka Adachi, Ken Itou