Patents by Inventor Shoji Hashimoto
Shoji Hashimoto 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: 8232777Abstract: In an inverter generator having an engine generator unit generating alternating current, a converter converting the alternating current to direct current, an inverter that converts the direct current to alternating current, an inverter driver that drives switching elements with a PWM signal generated using a reference sine wave of a desired output voltage waveform and a carrier and makes the alternating current to the alternating current of a predetermined frequency, the alternating current supplied to an electrical load is detected, gains Gn (n: 2, 3, 4, 5, 6, . . . m) of n-th harmonics of the reference sine wave and amplitudes An are calculated from the detected current, and the reference sine wave is corrected by a sum obtained by the calculated gains and amplitudes. With this, the reference sine wave is accurately corrected to reliably remove harmonic distortion components from the output voltage waveform.Type: GrantFiled: July 16, 2009Date of Patent: July 31, 2012Assignee: Honda Motor Co., Ltd.Inventors: Shoji Hashimoto, Kazufumi Muronoi
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Publication number: 20120160617Abstract: A baggage lock device to halt rotation of caster wheels as the handle is retracted, and allow the wheels to move as the handle is pulled out. The device has a receptacle with a handle extendable to be pulled put. A wheel halting mechanism has a traction cord inhibiting wheel rotation by a force pressed against the wheel as operation of an operation mechanism is transmitted via a pulling force transmission mechanism having a pulled wire, a brake pad, a linking member, and means for restoring the position of the operated elements.”.Type: ApplicationFiled: December 26, 2011Publication date: June 28, 2012Applicant: T & S CO., LTD.Inventors: RUI CHENG QI, SHOJI HASHIMOTO
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Patent number: 8171806Abstract: A temperature compensated force detection element is provided with a substrate, an insulation layer disposed above the substrate, and a p-type semiconductor layer disposed above the insulation layer, and a positive electrode and a negative electrode disposed apart from each other above the p-type semiconductor layer. A gauge portion being electrically connected to the positive electrode and having a higher impurity concentration than the p-type semiconductor layer, and an n-type region electrically connected to the negative electrode are formed in the p-type semiconductor layer.Type: GrantFiled: November 10, 2009Date of Patent: May 8, 2012Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Kentaro Mizuno, Shoji Hashimoto, Hiromichi Yasuda, Hidenori Moriya
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Patent number: 8102066Abstract: In an inverter generator, having a generator unit driven by an internal combustion engine whose throttle valve is moved by an actuator and generates alternating current, and an inverter that converts converted direct current to alternating current with switching elements to supply to an electrical load, voltage and current supplied to the electrical load is detected, a power factor is calculated from the detected voltage and the current, a power of the load is estimated from the detected current and the calculated power factor. Then a desired speed of the engine is determined based on the estimated power of the load, and the actuator is controlled such that an engine speed becomes equal to the desired engine speed, thereby improving the response of engine speed control.Type: GrantFiled: July 14, 2009Date of Patent: January 24, 2012Assignee: Honda Motor Co., Ltd.Inventors: Shoji Hashimoto, Kazufumi Muronoi
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Patent number: 7965063Abstract: In an inverter generator having an engine generator unit, a converter that converts generated alternating current to direct current, an inverter that converts the direct current to alternating current with switching elements to supply to an electrical load, an inverter driver that drives the switching elements with a PWM signal and makes the alternating current of a predetermined frequency, the alternating current supplied to the electrical and voltages of the direct and alternating currents are detected, the detected voltage of the alternating current is corrected as a predetermined value based on a coefficient (DCgainA) set based on the detected voltage of the direct current, when the detected alternating current is greater than a threshold value, and the PWM signal is corrected by the predetermined, thereby limiting overcurrent.Type: GrantFiled: July 20, 2009Date of Patent: June 21, 2011Assignee: Honda Motor Co., Ltd.Inventors: Shoji Hashimoto, Kazufumi Muronoi
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Publication number: 20100206092Abstract: A temperature compensated force detection element is provided with a substrate, an insulation layer disposed above the substrate, and a p-type semiconductor layer disposed above the insulation layer, and a positive electrode and a negative electrode disposed apart from each other above the p-type semiconductor layer. A gauge portion being electrically connected to the positive electrode and having a higher impurity concentration than the p-type semiconductor layer, and an n-type region electrically connected to the negative electrode are formed in the p-type semiconductor layer.Type: ApplicationFiled: November 10, 2009Publication date: August 19, 2010Applicants: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kentaro Mizuno, Shoji Hashimoto, Hiromichi Yasuda, Hidenori Moriya
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Publication number: 20100211285Abstract: Operation management apparatus includes a control section for controlling operation of an internal combustion engine, a storage section for storing data of an integrated operating time of the engine monitored by the control section, and a display section capable of displaying not only operating states of the engine but also an integrated operating time of the internal combustion engine. The control section controls the display section to make a blinking display with a predetermined number of blinks, corresponding to the integrated operating time, at predetermined timing.Type: ApplicationFiled: February 11, 2010Publication date: August 19, 2010Applicant: HONDA MOTOR CO., LTD.Inventors: Shoji Hashimoto, Ryuichi Kimata
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Publication number: 20100080891Abstract: The present invention provides a holding mechanism which holds a processing object and a mask including a mask pattern located on the processing object, and a mask frame which supports the mask pattern in a periphery thereof, the mechanism including a base configured to hold, on a holding surface thereof, the processing object and the mask frame, a permanent magnet, arranged along the holding surface of the base, configured to fix the processing object and the mask on the base by magnetically attracting the mask, and a pressing unit which is located on a peripheral portion of the mask pattern, includes a to-be-attracted portion magnetically attracted by the permanent magnet, and is configured to press the peripheral portion of the mask pattern toward the base as the permanent magnet magnetically attracts the to-be-attracted portion.Type: ApplicationFiled: September 28, 2009Publication date: April 1, 2010Applicant: CANON ANELVA CORPORATIONInventors: Masanao YOSHIMURA, Shoji Hashimoto, Masato Inoue, Shin Matsui
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Publication number: 20100020571Abstract: In an inverter generator having an engine generator unit, a converter that converts generated alternating current to direct current, an inverter that converts the direct current to alternating current with switching elements to supply to an electrical load, an inverter driver that drives the switching elements with a PWM signal and makes the alternating current of a predetermined frequency, the alternating current supplied to the electrical and voltages of the direct and alternating currents are detected, the detected voltage of the alternating current is corrected as a predetermined value based on a coefficient (DCgainA) set based on the detected voltage of the direct current, when the detected alternating current is greater than a threshold value, and the PWM signal is corrected by the predetermined, thereby limiting overcurrent.Type: ApplicationFiled: July 20, 2009Publication date: January 28, 2010Applicant: HONDA MOTOR CO., LTDInventors: Shoji HASHIMOTO, Kazufumi Muronoi
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Publication number: 20100020572Abstract: In an inverter generator having an engine generator having a generator unit, a converter that converts generated alternating current to direct current, an inverter that converts the direct current to alternating current with switching elements to supply to an electrical load, an inverter driver that drives the switching elements with a PWM signal using a reference sine wave of a desired output voltage waveform and a carrier at every control cycle (step) determined by a carrier frequency and makes the alternating current of a predetermined frequency, the inverter driver varies the carrier frequency in accordance with inclination of the reference sine wave, more specifically decreases the carrier frequency as decreasing inclination of the reference sine wave.Type: ApplicationFiled: July 20, 2009Publication date: January 28, 2010Applicant: HONDA MOTORS CO., LTD.Inventors: Shoji HASHIMOTO, Kazufumi Muronoi
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Publication number: 20100019508Abstract: In an inverter generator, having a generator unit driven by an internal combustion engine whose throttle valve is moved by an actuator and generates alternating current, and an inverter that converts converted direct current to alternating current with switching elements to supply to an electrical load, voltage and current supplied to the electrical load is detected, a power factor is calculated from the detected voltage and the current, a power of the load is estimated from the detected current and the calculated power factor. Then a desired speed of the engine is determined based on the estimated power of the load, and the actuator is controlled such that an engine speed becomes equal to the desired engine speed, thereby improving the response of engine speed control.Type: ApplicationFiled: July 14, 2009Publication date: January 28, 2010Applicant: HONDA MOTOR CO., LTD.Inventors: Shoji HASHIMOTO, Kazufumi Muronoi
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Publication number: 20100019507Abstract: In an inverter generator having a generator unit driven by an internal combustion engine, an inverter that inverts converted direct current to alternating current with switching elements to supply to an electrical load, an inverter driver that comprises an microcomputer and drives the switching elements with a PWM signal to make the alternating current of a predetermined frequency, an ignition unit that ignites the engine, and an ignition controller that controls operation of the ignition unit, the engine speed is detected and it is determined whether the engine is under over revolution condition based on the detected engine speed. The inverter driver sends a command to the ignition controller to terminate the ignition to stop the engine, when the engine is under the over revolution condition, thereby enabling to prevent the engine from experiencing over revolution repeatedly.Type: ApplicationFiled: July 20, 2009Publication date: January 28, 2010Applicant: HONDA MOTOR CO., LTD.Inventors: Shoji HASHIMOTO, Kazufumi Muronoi
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Publication number: 20100019740Abstract: In an inverter generator having an engine generator unit generating alternating current, a converter converting the alternating current to direct current, an inverter that converts the direct current to alternating current, an inverter driver that drives switching elements with a PWM signal generated using a reference sine wave of a desired output voltage waveform and a carrier and makes the alternating current to the alternating current of a predetermined frequency, the alternating current supplied to an electrical load is detected, gains Gn (n: 2, 3, 4, 5, 6, . . . m) of n-th harmonics of the reference sine wave and amplitudes An are calculated from the detected current, and the reference sine wave is corrected by a sum obtained by the calculated gains and amplitudes. With this, the reference sine wave is accurately corrected to reliably remove harmonic distortion components from the output voltage waveform.Type: ApplicationFiled: July 16, 2009Publication date: January 28, 2010Applicant: HONDA MOTOR CO., LTD.Inventors: Shoji HASHIMOTO, Kazufumi Muronoi
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Patent number: 7646190Abstract: A stress measurement device includes a current supply portion; a series circuit which is connected to the current supply portion and has a piezoresistive element that forms a single gauge resistance and a compensating diode that is connected in series to the piezoresistive element; and a voltage measuring portion that measures voltage between both ends of the series circuit. The single gauge resistance has a piezoresistive effect in which a resistance value changes according to applied stress, and a positive temperature characteristic in which the resistance value increases depending on an increase in temperature. The compensating diode is provided in a forward direction with respect to the current supply portion and has a negative temperature characteristic in which a voltage between an anode and a cathode of the compensating diode decreases depending on the increase in temperature.Type: GrantFiled: March 23, 2007Date of Patent: January 12, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kentaro Mizuno, Shoji Hashimoto, Hidenori Moriya, Hiromichi Yasuda
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Publication number: 20070240518Abstract: A stress measurement device includes a current supply portion; a series circuit which is connected to the current supply portion and has a piezoresistive element that forms a single gauge resistance and a compensating diode that is connected in series to the piezoresistive element; and a voltage measuring portion that measures voltage between both ends of the series circuit. The single gauge resistance has a piezoresistive effect in which a resistance value changes according to applied stress, and a positive temperature characteristic in which the resistance value increases depending on an increase in temperature. The compensating diode is provided in a forward direction with respect to the current supply portion and has a negative temperature characteristic in which a voltage between an anode and a cathode of the compensating diode decreases depending on the increase in temperature.Type: ApplicationFiled: March 23, 2007Publication date: October 18, 2007Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kentaro Mizuno, Shoji Hashimoto, Hidenori Moriya, Hiromichi Yasuda
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Patent number: 7143591Abstract: A refrigerator of the present invention includes a refrigerating cycle including a compressor, a condenser, an expander and an evaporator and filled with a flammable refrigerant, a load detector detecting a change in load of the compressor, and a control device detecting a damage which is a cause for leak of the refrigerant from the refrigerating cycle, based on a detection output of the load detector.Type: GrantFiled: October 30, 2002Date of Patent: December 5, 2006Assignees: Kabushiki Kaisha Toshiba, Toshiba Consumer Marketing Corporation, Toshiba Ha Products Co., LtdInventors: Hikaru Nonaka, Shinji Hirai, Yoshihiko Uenoyama, Tsutomu Sakuma, Susumu Saruta, Shoji Hashimoto
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Publication number: 20060202559Abstract: A system interconnection control section 7 interconnects and parallels off an output from a generator 1 with a system 9, and supplies an output from the generator 1 to a load 10. A selection switch 24 that selects operation modes of the generator 1 is provided. The operation modes are an interconnected operation mode to shut down operation of the generator 1 and an isolated operation mode to operate the generator 1 after disconnecting the output from the generator 1 from the system, when a power of the system 9 has been stopped. During a power failure, the selection switch 24 is switched to select a start and a shutdown of an isolated operation.Type: ApplicationFiled: March 6, 2006Publication date: September 14, 2006Applicant: HONDA MOTOR CO., LTD.Inventors: Shoji Hashimoto, Motohiro Shimizu
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Patent number: 7021154Abstract: A force sensing element is provided with a gauge portion and a plurality of electrodes. The gauge portion is formed of an n-type semiconductor substrate whose (100)-face serves as a main face, a p-type semiconductor substrate whose (110)-face serves as a main face, or a p-type semiconductor substrate whose (111)-face serves as a main face, and is pressed in a thickness direction of the semiconductor substrate upon receiving a force. The electrodes are electrically connected to the gauge portion such that a current path extending in a direction corresponding to the thickness direction of the semiconductor substrate is formed in the gauge portion. The force sensing element thus constructed makes it possible to detect a force with high precision.Type: GrantFiled: September 11, 2003Date of Patent: April 4, 2006Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Shoji Hashimoto, Kouji Tsukada, Kentaro Mizuno, Jiro Sakata, Yoshiteru Omura, Yumi Masuoka
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Publication number: 20050086952Abstract: A refrigerator-freezer is described, in which refrigerant leakage from the refrigeration cycle can be safely detected. The refrigerator-freezer comprises: a refrigeration cycle formed by a compressor, a capillary, an evaporator and an accumulator connected in series, and filled with a flammable refrigerant; a cooling fan configured to blow the cold air cooled by the evaporator in the refrigerator-freezer; and a refrigerant leakage detection system configured to detect leakage of the flammable refrigerant, wherein the refrigerant leakage detection system is provided with a temperature sensor configured to measure the temperature of a refrigerant conduit of the evaporator and judges that the flammable refrigerant is leaking in the low pressure side of the refrigeration cycle when the temperature is detected by the temperature sensor with the compressor being halted is no lower than a predetermined temperature.Type: ApplicationFiled: September 19, 2002Publication date: April 28, 2005Inventors: Hikaru Nonaka, Tsutomu Sakuma, Munehiro Horie, Yoshihiko Uenoyama, Shoji Hashimoto, Shinji Hirai, Susumu Saruta, Ryousuke Yamamoto, Katsushi Sumihiro
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Patent number: 6865953Abstract: A pressure sensor has a housing having a first block and a second block provided therein. A force to be measured applies upon a upper face of the first block. An upper face of the second block makes contact with a base face of the first block. Piezoresistive elements are formed within the base face of the first block. The resistance values of these piezoresistive elements change as contacting pressure between the first block and the second block changes. A first electrode is formed on an upper face of the first block. A second electrode is formed on a base face of the second block. Electrical characteristics between the first electrode and the second electrode change following change in the contacting pressure between the first block and the second block.Type: GrantFiled: March 14, 2003Date of Patent: March 15, 2005Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Kouji Tsukada, Jiro Sakata, Kentaro Mizuno, Yoshiteru Omura, Yumi Masuoka, Shoji Hashimoto