Patents by Inventor Mitsuyoshi Kanai
Mitsuyoshi Kanai 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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Publication number: 20230090154Abstract: A present invention is a power supply device, comprising a battery unit, a heater configured to generate heat on the basis of power of the battery unit, and a driving unit configured to drive the heater with a driving force according to a temperature of the battery unit.Type: ApplicationFiled: November 17, 2022Publication date: March 23, 2023Applicant: HONDA MOTOR CO., LTD.Inventors: Shunichiro Sueyoshi, Akihiro Kimura, Kotaro Kawase, Yoshiharu Nawata, Mitsuyoshi Kanai
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Patent number: 8174140Abstract: A multipurpose engine has a wiring structure between the generator and electrical components. A connector box is provided in a gap defined directly between the generator and the fuel tank. A plurality of electrical wirings is interconnected inside the connector box.Type: GrantFiled: June 16, 2006Date of Patent: May 8, 2012Assignee: Honda Motor Co., Ltd.Inventors: Mitsuyoshi Kanai, Souhei Honda, Akihisa Shinoda
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Patent number: 7746214Abstract: A rotary variable resistor includes a variable resistor body mounted to a console panel, a rotor shaft protruding outward from the variable resistor body, and a control knob coupled to an outer end of the rotor shaft. A single plate-shaped stopper is projectingly provided, along a rotational direction of the rotor shaft, on a front face of the variable resistor body from which the rotor shaft protrudes. First and second restricting portions are provided on the control knob side-by-side along the rotational direction of the rotor shaft to alternately abut against the stopper in defining an actual rotational angle of the rotor shaft.Type: GrantFiled: January 10, 2006Date of Patent: June 29, 2010Assignee: Honda Motor Co., Ltd.Inventors: Hideyuki Sakamoto, Mitsuyoshi Kanai
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Patent number: 7706960Abstract: In a capacitor-discharge ignition system for an internal combustion engine having a power generation coil, a capacitor connected to the power generation coil, an ignition coil having a primary winding connected to the capacitor through a thyristor and a secondary winding connected to a spark plug, and a microprocessor which turns on the thyristor at a predetermined crank angular position to produce ignition in the spark plug, an engine stop switch is installed to input an engine-stop command signal to the microprocessor when being turned off by the operator. With this, it becomes possible to surely stop the engine at any time if desired.Type: GrantFiled: April 8, 2008Date of Patent: April 27, 2010Assignee: Honda Motor Co., Ltd.Inventors: Kazutomo Nishida, Mitsuyoshi Kanai, Kentaro Taniguchi, Akihito Kasai
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Publication number: 20090302610Abstract: A multipurpose engine having an improved wiring structure between the generator (46) and electrical components is disclosed. A connector box (104) is provided to the dead space formed between the engine main body (27) and the fuel tank (37). A plurality of electrical wirings (151 to 156) is interconnected inside the connector box.Type: ApplicationFiled: June 16, 2006Publication date: December 10, 2009Inventors: Mitsuyoshi Kanai, Souhei Honda, Akihisa Shinoda
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Publication number: 20080257322Abstract: In a capacitor-discharge ignition system for an internal combustion engine having a power generation coil, a capacitor connected to the power generation coil, an ignition coil having a primary winding connected to the capacitor through a thyristor and a secondary winding connected to a spark plug, and a microprocessor which turns on the thyristor at a predetermined crank angular position to produce ignition in the spark plug, an engine stop switch is installed to input an engine-stop command signal to the microprocessor when being turned off by the operator. With this, it becomes possible to surely stop the engine at any time if desired.Type: ApplicationFiled: April 8, 2008Publication date: October 23, 2008Applicant: Honda Motor Co., Ltd.Inventors: Kazutomo Nishida, Mitsuyoshi Kanai, Kentaro Taniguchi, Akihito Kasai
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Patent number: 7395794Abstract: In an engine which starts using a recoil starter, ignition chance during inertia rotation is not missed. If the engine 42 is rotated by the recoil starter 41, output of a power generator which is directly connected to the engine 42 is increased, and a CPU 27 is reset at timing t0. At timing t1, if pulse P1 is input from a revolution number sensor 29 to the CPU 27, the CPU 27 outputs first ignition instructions when predetermined time T1 is elapsed (t2). At timing t3, second pulse P2 is input. At that time point, since the CPU 27 is normally operated, ignition timing is obtained from an ignition timing map 30 in accordance with the revolution number calculated by a time interval between the pulses P1 and P2, and the ignition instructions are output at timing t4 in accordance with the ignition timing. Thereafter, the ignition timing is determined using the ignition timing map 30.Type: GrantFiled: November 12, 2004Date of Patent: July 8, 2008Assignee: Honda Motor Co., Ltd.Inventors: Riyuuhei Tamamoto, Makoto Yamamura, Mitsuyoshi Kanai
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Patent number: 7320306Abstract: In an engine of a working machine having no governor mechanism, the engine revolution speed is controlled such that the revolution speed can stably be maintained irrespective of the variation in load without adjusting the throttle opening to exploit the full potential of the engine. Since an engine 1 does not have the governor mechanism, an operator adjusts the throttle opening and controls the engine revolution speed. A map in which ignition timing (amount of angle of lead) is set by means of functions of the engine revolution speed is stored in an ignition timing map 30. The map 30 is set such that the engine revolution speed is equal to or higher than a value to be controlled (e.g. 7000 rpm), and the ignition timing is lagged as compared with a case in which the engine revolution speed is lower than the value to be controlled.Type: GrantFiled: November 19, 2004Date of Patent: January 22, 2008Assignee: Honda Motor Co., Ltd.Inventors: Riyuuhei Tamamoto, Tadayuki Yoneyama, Makoto Yamamura, Mitsuyoshi Kanai
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Publication number: 20070125341Abstract: In an engine of a working machine having no governor mechanism, the engine revolution speed is controlled such that the revolution speed can stably be maintained irrespective of the variation in load without adjusting the throttle opening to exploit the full potential of the engine. Since an engine 1 does not have the governor mechanism, an operator adjusts the throttle opening and controls the engine revolution speed. A map in which ignition timing (amount of angle of lead) is set by means of functions of the engine revolution speed is stored in an ignition timing map 30. The map 30 is set such that the engine revolution speed is equal to or higher than a value to be controlled (e.g. 7000 rpm), and the ignition timing is lagged as compared with a case in which the engine revolution speed is lower than the value to be controlled.Type: ApplicationFiled: November 19, 2004Publication date: June 7, 2007Applicant: HONDA MOTOR CO., LTD.Inventors: Riyuuhei Tamamoto, Tadayuki Yoneyama, Makoto Yamamura, Mitsuyoshi Kanai
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Publication number: 20070079783Abstract: In an engine which starts using a recoil starter, ignition chance during inertia rotation is not missed. If the engine 42 is rotated by the recoil starter 41, output of a power generator which is directly connected to the engine 42 is increased, and a CPU 27 is reset at timing t0. At timing t1, if pulse P1 is input from a revolution number sensor 29 to the CPU 27, the CPU 27 outputs first ignition instructions when predetermined time T1 is elapsed (t2). At timing t3, second pulse P2 is input. At that time point, since the CPU 27 is normally operated, ignition timing is obtained from an ignition timing map 30 in accordance with the revolution number calculated by a time interval between the pulses P1 and P2, and the ignition instructions are output at timing t4 in accordance with the ignition timing. Thereafter, the ignition timing is determined using the ignition timing map 30.Type: ApplicationFiled: November 12, 2004Publication date: April 12, 2007Applicant: HONDA MOTOR CO., LTD.Inventors: Riyuuhei Tamamoto, Makoto Yamamura, Mitsuyoshi Kanai
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Publication number: 20060176144Abstract: A rotary variable resistor includes a variable resistor body mounted to a console panel, a rotor shaft protruding outward from the variable resistor body, and a control knob coupled to an outer end of the rotor shaft. A single plate-shaped stopper is projectingly provided, along a rotational direction of the rotor shaft, on a front face of the variable resistor body from which the rotor shaft protrudes. First and second restricting portions are provided on the control knob side-by-side along the rotational direction of the rotor shaft to alternately abut against the stopper in defining an actual rotational angle of the rotor shaft.Type: ApplicationFiled: January 10, 2006Publication date: August 10, 2006Inventors: Hideyuki Sakamoto, Mitsuyoshi Kanai
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Patent number: 6877475Abstract: In a fuel cut-off device for an engine in which one of a plurality of generating coils of a generator is connected to a normally-opened type solenoid valve adapted to block a fuel passage in a carburetor upon energization of the solenoid valve through an engine control switch adapted to be operated to a turned-off position and a turned-on position so that the solenoid valve can be energized from the one generating coil in the turned-off position of the switch, an output from the one generating coil is supplied to an electric load in the turned-on position of the engine control switch, together with outputs from the other generating coils. Thus, during operation of the engine, also the output from the one generating coil conventionally prepared for cutting off fuel is effectively supplied to the electric load, together with the outputs from the other generating coils, whereby the generating performance of the generator can be enhanced.Type: GrantFiled: July 21, 2003Date of Patent: April 12, 2005Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Kazutomo Nishida, Mitsuyoshi Kanai, Yasushi Fujita
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Publication number: 20040094116Abstract: In a fuel cut-off device for an engine in which one of a plurality of generating coils of a generator is connected to a normally-opened type solenoid valve adapted to block a fuel passage in a carburetor upon energization of the solenoid valve through an engine control switch adapted to be operated to a turned-off position and a turned-on position so that the solenoid valve can be energized from the one generating coil in the turned-off position of the switch, an output from the one generating coil is supplied to an electric load in the turned-on position of the engine control switch, together with outputs from the other generating coils. Thus, during operation of the engine, also the output from the one generating coil conventionally prepared for cutting off fuel is effectively supplied to the electric load, together with the outputs from the other generating coils, whereby the generating performance of the generator can be enhanced.Type: ApplicationFiled: July 21, 2003Publication date: May 20, 2004Applicant: Honda Giken Kogyo Kabushiki KaishaInventors: Kazutomo Nishida, Mitsuyoshi Kanai, Yasushi Fujita