Patents by Inventor Takeo Matsumoto
Takeo Matsumoto 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: 9333862Abstract: A control device for an AC electric vehicle that is applied to a configuration in which an SIV is connected to an intermediate DC circuit unit between a CONV that converts an AC voltage input through a main transformer to a DC voltage and an INV that converts the DC voltage to an AC voltage, in which a carrier frequency fc of the CONV is changed on the basis of initial temperature (initial value of Tcnv) of a converter main circuit element when a vehicle is stopped and input current Isiv of the SIV such that a temperature variation of a converter main circuit element when the vehicle is stopped is reduced.Type: GrantFiled: June 28, 2012Date of Patent: May 10, 2016Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Takeo Matsumoto, Kotaro Matsuda
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Publication number: 20160086308Abstract: A first interpolation processor of an image processing apparatus performs a first interpolation process, using values of a plurality of input pixels of an input image aligned in an arranged direction that is one of a horizontal direction and a vertical direction. Thus, the first interpolation processor derives a value of each of a plurality of noted points on an inclined interpolation line inclined relative to the horizontal direction and extending through a location of a processed pixel of an output image. Moreover, second interpolation processor derives a value of the processed pixel by performing a second interpolation process, using the derived values of the plurality of noted points on the inclined interpolation line.Type: ApplicationFiled: September 10, 2015Publication date: March 24, 2016Inventors: Takeo MATSUMOTO, Teruhiko KAMIBAYASHI, Kohji OHNISHI, Tomoyuki FUJIMOTO, Daisuke YAMAMOTO
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Publication number: 20150175007Abstract: A control device for an AC electric vehicle that is applied to a configuration in which an SIV is connected to an intermediate DC circuit unit between a CONV that converts an AC voltage input through a main transformer to a DC voltage and an INV that converts the DC voltage to an AC voltage, in which a carrier frequency fc of the CONV is changed on the basis of initial temperature (initial value of Tcnv) of a converter main circuit element when a vehicle is stopped and input current Isiv of the SIV such that a temperature variation of a converter main circuit element when the vehicle is stopped is reduced.Type: ApplicationFiled: June 28, 2012Publication date: June 25, 2015Applicant: Mitsubishi Electric CorporationInventors: Takeo Matsumoto, Kotaro Matsuda
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Patent number: 8952997Abstract: An image processor receives information of a type of an input image, and performs a correction to the input image in accordance with an illuminance in an area near a display that displays the input image and the received information of the type of the input image.Type: GrantFiled: February 9, 2012Date of Patent: February 10, 2015Assignee: Fujitsu Ten LimitedInventors: Kohji Ohnishi, Teruhiko Kamibayashi, Takeo Matsumoto, Shizuka Tamura, Tomoyuki Fujimoto
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Publication number: 20150001021Abstract: An electric motor vehicle main circuit system includes an AC-DC switching circuit switching a supply destination of electric power according to a type of supplied power from an overhead wire, a transformer, a tap changer switching tap positions of the transformer, a CNV converting an output of the tap changer into a direct-current voltage, an AC contactor opening and closing a power supply path between the tap changer and the CNV, an FC accumulating an output of the CNV or the overhead wire, a CH stepping up an output of the FC, an FC accumulating an output of the CH, an INV converting an output of the FC into a desired alternating-current voltage, a DC contactor opening and closing a power supply path between the AC-DC switching circuit and the CH, and a control section controlling the tap changer, the AC contactor, the DC contactor, the CNV, and the CH.Type: ApplicationFiled: January 30, 2012Publication date: January 1, 2015Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Takeo Matsumoto, Yoshio Nagatsuka
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Patent number: 8738208Abstract: In a configuration in which an auxiliary power supply is connected to an intermediate link circuit of a main conversion unit, intermediate link voltage as input voltage of the auxiliary power supply is set at higher voltage depending on the main conversion unit as a main unit, and loss generated in a main circuit element of the auxiliary power supply increases; therefore, a problem has occurred that a cooling unit has to be increased in size. The main conversion unit recognizes a low-speed and stop state by monitoring a vehicle speed, and varies the intermediate link voltage corresponding to the vehicle speed; thereby, the loss generated in the main circuit element of the auxiliary power supply is reduced at the low-speed and stop state where cooling ability is decreased; as a result, small sizing and light weighting of the cooling unit is achieved.Type: GrantFiled: December 8, 2009Date of Patent: May 27, 2014Assignee: Mitsubishi Electric CorporationInventor: Takeo Matsumoto
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Patent number: 8704482Abstract: A power conversion device includes a converter-inverter controller for controlling a converter and an inverter. The power conversion device further includes a DC capacitor connected between the converter and the inverter and a DC capacitor voltage detector for detecting a DC capacitor voltage Efc between the connection ends of the DC capacitor. The converter-inverter controller provides variable control on the DC capacitor voltage Efc to the converter on the basis of the motor frequency of an AC motor, the DC capacitor voltage Efc, and a pulse mode. Within a predetermined range of motor frequencies, the converter-inverter controller fixes the PWM modulation factor of the inverter to a value m0 and provides operation control to the inverter, where the value m0 being to reduce a harmonic of a predetermined order included in the output voltage from the inverter.Type: GrantFiled: April 23, 2009Date of Patent: April 22, 2014Assignee: Mitsubishi Electric CorporationInventors: Takafumi Maruyama, Takeo Matsumoto
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Patent number: 8695541Abstract: During engine warm-up, a flow regulating unit in a cooling system operates in a fuel efficiency priority mode. In this mode, a head-side cooling water flow rate (Qhd) is regulated to be equal to or smaller than a first upper limit; a block-side cooling water flow rate (Qbk) is regulated to be equal to or smaller than a second upper limit; and cooling water flowing out of a block-side passage and a head-side passage flows mainly into a bypass passage. When a heating request to heat blown air is made during engine warm-up, the regulating unit operates in a heating priority mode. In this mode, Qhd is regulated to be equal to or smaller than a third upper limit; Qbk is regulated to be equal to or smaller than a fourth upper limit; and at least cooling water flowing out of the head-side passage flows into a heat exchanger.Type: GrantFiled: February 23, 2012Date of Patent: April 15, 2014Assignee: Denso CorporationInventors: Michio Nishikawa, Takeo Matsumoto, Mitsuo Hara, Mitsunobu Uchida
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Patent number: 8565951Abstract: In a controller for an AC electric vehicle that includes a converter control unit controlling an operation of a PWM converter that converts an AC voltage inputted from an AC overhead line through a transformer into an DC voltage, arithmetic processing performed in the converter control unit is divided into at least first to sixth arithmetic processing blocks, the first to sixth arithmetic processing blocks are configured by an FPGA, and the first to third arithmetic processing blocks, and the fourth and fifth arithmetic processing blocks are configured to enable simultaneous parallel processing, respectively.Type: GrantFiled: July 31, 2008Date of Patent: October 22, 2013Assignee: Mitsubishi Electric CorporationInventor: Takeo Matsumoto
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Patent number: 8504230Abstract: A control apparatus for an AC electric motor vehicle including a converter that converts an AC voltage input from an AC overhead wire via a transformer into a DC voltage, an inverter that converts the DC voltage into an AC voltage, and a motor that is driven and controlled by the inverter includes: torque-command calculating units that calculate a torque command value of the motor and output the torque command value to the inverter; and a static inverter that supplies electric power to a load mounted on the AC electric motor vehicle.Type: GrantFiled: March 25, 2009Date of Patent: August 6, 2013Assignee: Mitsubishi Electric CorporationInventor: Takeo Matsumoto
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Patent number: 8343060Abstract: In a process of varying pressure of a pressure container (24) accommodating a forearm (22) of a subject (20) in a pressure range including negative pressure, a diameter (cross-sectional shape value) (D) of an artery 44 in the forearm (22) accommodated in the pressure container (24) is measured non-invasively by a vascular diameter calculating unit (76). In addition, a display controller (display controlling means) (80) operates to display on a displaying device (16) a variation of an internal pressure (Pc) in the pressure container (24) and a variation of the diameter (D) of the artery (44) varying depending thereon. Based on the diameter (D) of the artery (44) obtained in the high pressure region, the variation of the internal pressure Pc in the pressure container 24 and the variation of the diameter (D) of the artery 44 varying depending thereon i.e. mechanical properties of the artery (44) are displayed on the displaying device (16).Type: GrantFiled: February 27, 2008Date of Patent: January 1, 2013Assignee: Unex CorporationInventors: Takeo Matsumoto, Kazuaki Nagayama, Kenji Takezawa, Hiroshi Masuda
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Publication number: 20120296507Abstract: In a configuration in which an auxiliary power supply is connected to an intermediate link circuit of a main conversion unit, intermediate link voltage as input voltage of the auxiliary power supply is set at higher voltage depending on the main conversion unit as a main unit, and loss generated in a main circuit element of the auxiliary power supply increases; therefore, a problem has occurred that a cooling unit has to be increased in size. The main conversion unit recognizes a low-speed and stop state by monitoring a vehicle speed, and varies the intermediate link voltage corresponding to the vehicle speed; thereby, the loss generated in the main circuit element of the auxiliary power supply is reduced at the low-speed and stop state where cooling ability is decreased; as a result, small sizing and light weighting of the cooling unit is achieved.Type: ApplicationFiled: December 8, 2009Publication date: November 22, 2012Applicant: Mitsubishi Electric CorporaitonInventor: Takeo Matsumoto
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Publication number: 20120223924Abstract: An image processing apparatus corrects an input image based on a correction amount determined based on an illuminance, and adjusts a specifying value for specifying brightness of a backlight of a display based on the correction amount.Type: ApplicationFiled: February 23, 2012Publication date: September 6, 2012Applicant: FUJITSU TEN LIMITEDInventors: Takeo MATSUMOTO, Kohji OHNISHI, Teruhiko KAMIBAYASHI, Shizuka TAMURA, Tomoyuki FUJIMOTO
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Publication number: 20120212518Abstract: An image processor receives information of a type of an input image, and performs a correction to the input image in accordance with an illuminance in an area near a display that displays the input image and the received information of the type of the input image.Type: ApplicationFiled: February 9, 2012Publication date: August 23, 2012Applicant: FUJITSU TEN LIMITEDInventors: Kohji OHNISHI, Teruhiko KAMIBAYASHI, Takeo MATSUMOTO, Shizuka TAMURA, Tomoyuki FUJIMOTO
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Publication number: 20120210954Abstract: During engine warm-up, a flow regulating unit in a cooling system operates in a fuel efficiency priority mode. In this mode, a head-side cooling water flow rate (Qhd) is regulated to be equal to or smaller than a first upper limit; a block-side cooling water flow rate (Qbk) is regulated to be equal to or smaller than a second upper limit; and cooling water flowing out of a block-side passage and a head-side passage flows mainly into a bypass passage. When a heating request to heat blown air is made during engine warm-up, the regulating unit operates in a heating priority mode. In this mode, Qhd is regulated to be equal to or smaller than a third upper limit; Qbk is regulated to be equal to or smaller than a fourth upper limit; and at least cooling water flowing out of the head-side passage flows into a heat exchanger.Type: ApplicationFiled: February 23, 2012Publication date: August 23, 2012Applicant: Denso CorporationInventors: Michio NISHIKAWA, Takeo Matsumoto, Mitsuo Hara, Mitsunobu Uchida
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Publication number: 20120209146Abstract: An aspiration chamber is provided with an aspiration aperture, having a shape in which a width becomes larger from one edge toward another edge, and aspirates soft tissue through the aspiration aperture. A deformation amount measurement portion measures aspiration deformation amounts of the soft tissue within the aspiration aperture along a virtual line from the one edge to another edge. Based on the aspiration deformation amounts that have been measured by the deformation amount measurement portion, a computer uses a finite element model of the soft tissue to derive an approximation equation according to a numerical function for the aspiration deformation amounts and positions on the virtual line and determines a distribution of elasticity from the surface of the soft tissue into its interior by substituting parameters of the approximation equation into estimation equations that are derived by assuming that the deformation along the virtual line reflects elasticity distribution parameters.Type: ApplicationFiled: November 4, 2010Publication date: August 16, 2012Applicant: NATIONAL UNIVERSITY CORPORATION NAGOYA INSTITUTE OF TECHNOLOGYInventors: Takeo Matsumoto, Shinichi Miyano, Kazuaki Nagayama
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Publication number: 20120001586Abstract: A power conversion device includes a converter-inverter controller for controlling a converter and an inverter. The power conversion device further includes a DC capacitor connected between the converter and the inverter and a DC capacitor voltage detector for detecting a DC capacitor voltage Efc between the connection ends of the DC capacitor. The converter-inverter controller provides variable control on the DC capacitor voltage Efc to the converter on the basis of the motor frequency of an AC motor, the DC capacitor voltage Efc, and a pulse mode. Within a predetermined range of motor frequencies, the converter-inverter controller fixes the PWM modulation factor of the inverter to a value m0 and provides operation control to the inverter, where the value m0 being to reduce a harmonic of a predetermined order included in the output voltage from the inverter.Type: ApplicationFiled: April 23, 2009Publication date: January 5, 2012Applicant: Mitsubishi Electric CorporationInventors: Takafumi Maruyama, Takeo Matsumoto
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Publication number: 20110319771Abstract: A pressure vessel is provided with an annular inflation bag and an annular inflation bag for sealing the pressure vessel at intermediate positions of brachium and antebrachium of the live body in longitudinal direction of the arms of the live body, and is configured to permit a change of an internal pressure therein over a pressure range a lower limit of which is a negative value, while a portion of the brachium and antebrachium between first and second positions in the longitudinal direction is accommodated in the pressure vessel, so that the pressure vessel can be comparatively small-sized even where arterial vessel (luminal part) of a comparatively large diameter is accommodated in the pressure vessel, whereby the physical and mental burden on the subject person can be reduced.Type: ApplicationFiled: March 4, 2010Publication date: December 29, 2011Applicants: UNEX CORPORATION, NATIONAL UNIVERSITY CORPORATION NAGOYA INSTITUTE OF TECHNOLOGYInventors: Hiromasa Tsukahara, Yoshihito Katoh, Takeo Matsumoto, Hiroshi Masuda
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Publication number: 20110276214Abstract: A control apparatus for an AC electric motor vehicle including a converter that converts an AC voltage input from an AC overhead wire via a transformer into a DC voltage, an inverter that converts the DC voltage into an AC voltage, and a motor that is driven and controlled by the inverter includes: torque-command calculating units that calculate a torque command value of the motor and output the torque command value to the inverter; and a static inverter that supplies electric power to a load mounted on the AC electric motor vehicle.Type: ApplicationFiled: March 25, 2009Publication date: November 10, 2011Applicant: Mitsubishi Electric CorporationInventor: Takeo Matsumoto
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Publication number: 20110095602Abstract: In a controller for an AC electric vehicle that includes a converter control unit controlling an operation of a PWM converter that converts an AC voltage inputted from an AC overhead line through a transformer into an DC voltage, arithmetic processing performed in the converter control unit is divided into at least first to sixth arithmetic processing blocks, the first to sixth arithmetic processing blocks are configured by an FPGA, and the first to third arithmetic processing blocks, and the fourth and fifth arithmetic processing blocks are configured to enable simultaneous parallel processing, respectively.Type: ApplicationFiled: July 31, 2008Publication date: April 28, 2011Applicant: MITSUBISHI ELECTRIC CORPORATIONInventor: Takeo Matsumoto