Patents by Inventor Yutaka Yamamoto

Yutaka Yamamoto 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).

  • Publication number: 20180112859
    Abstract: A lighting device that stores a rotation angle of a head unit, on which a user's intention is properly reflected. The lighting device includes a main unit, a head unit that includes a light emission section and is rotatable with respect to the main unit, a bounce angle storage circuit that stores a rotation angle of the head unit with respect to the main unit, a bounce angle detection circuit that detects whether or not the head unit is rotated with respect to the main unit, and a rotation angle of the head unit, and a storage button. When rotation of the head unit is detected, rotation angles detected by the bounce angle detection circuit last time are stored in the bounce angle storage circuit in response to a predetermined operation for releasing the storage button from a depressed state.
    Type: Application
    Filed: October 19, 2017
    Publication date: April 26, 2018
    Inventor: Yutaka Yamamoto
  • Patent number: 9936139
    Abstract: An image pickup control apparatus according to an exemplary embodiment of the present invention includes an instruction unit configured to instruct an image pickup unit to shoot an image in accordance with an operation of a photographer, a first display processing unit configured to display the image shot by the image pickup unit in accordance with an instruction by the instruction unit, an obtaining unit configured to obtain position information input by the photographer with respect to the image displayed by the first display processing unit, a second display processing unit configured to display options based on the position information obtained by the obtaining unit, and an assistance unit configured to perform an assistance for next shooting based on an option selected by the photographer from among the options displayed by the second display processing unit.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: April 3, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryuichi Kobayashi, Toshiaki Ueguri, Emi Kondo, Hiroshi Matsushima, Hiroshi Nakamura, Yutaka Yamamoto
  • Publication number: 20170289423
    Abstract: A technique for strobe shooting using automatic irradiation direction control. A strobe device includes a light emission section that emits light, and a drive unit that changes an irradiation direction of light emitted from the light emission section. Exposure conditions set to the camera are notified to the strobe device, and light emission conditions are set according to the exposure conditions. The irradiation direction of light emitted from the light emission section is determined based on the exposure conditions and the light emission conditions.
    Type: Application
    Filed: March 31, 2017
    Publication date: October 5, 2017
    Inventor: Yutaka Yamamoto
  • Patent number: 9780562
    Abstract: A power system stabilization method includes: receiving a power command value from a power control center that monitors a power system; transmitting the power command value to a power supply device; causing the power supply device to supply power to the power system according to the power command value; generating a prediction command value according to past power command values received from the power control center, the prediction command value being a prediction value of a power command value to be transmitted from the power control center next after the power command value; transmitting the prediction command value to a power supply device; causing the power supply device to supply power to the power system according to the power prediction command value; receiving the next power command value from the power control center; transmitting the next power command value to the power supply device.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: October 3, 2017
    Assignee: PANASONIC CORPORATION
    Inventors: Kenichi Watanabe, Seiya Miyazaki, Takahiro Kudoh, Yutaka Yamamoto, Masaaki Nagahara, Gou Nishida
  • Patent number: 9716818
    Abstract: A setting unit sets a smaller limitation angle for rotation of a second case rotated by a driving unit relative to a first case when information output from a sensor disposed in a back surface of a first case indicates that an object does not exist in a certain range when compared with a case where the information output from the sensor indicates that an object exists in the certain range.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: July 25, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keiichiro Saito, Yutaka Yamamoto, Toshiki Miyakawa
  • Patent number: 9571746
    Abstract: An image pickup apparatus capable of obtaining a high AF accuracy while reducing unnecessary power consumption and a release delay when photographing while detecting a focusing state using auxiliary light. The image pickup apparatus is capable of mounting a light emission device with which a first light emitting section of which an irradiation direction can be changed with respect to a body of the light emission device and a second light emitting section of which an irradiation direction is fixed to the body are provided. An obtaining unit obtains information about the irradiation direction of the first light emitting section. A control unit controls one of the first light emitting section and the second light emitting section on the basis of the information about the irradiation direction obtained as a light emitting section for irradiating with auxiliary light at the time when the focus detection unit performs focus detection.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: February 14, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Yutaka Yamamoto
  • Publication number: 20160378280
    Abstract: An information processing apparatus includes a touch panel, a display control unit configured to perform control so that a moving object and a different object from the moving object are displayed on a display screen of the touch panel, wherein a display position of the moving object can be moved, and a control unit configured to set a response region for receiving a touch operation with respect to the moving object, wherein, in a case where the moving object overlaps the different object, the control unit reduces the response region of the moving object.
    Type: Application
    Filed: June 22, 2016
    Publication date: December 29, 2016
    Inventors: Yutaka Yamamoto, Takuro Miyajima
  • Publication number: 20160373655
    Abstract: An image pickup control apparatus according to an exemplary embodiment of the present invention includes an instruction unit configured to instruct an image pickup unit to shoot an image in accordance with an operation of a photographer, a first display processing unit configured to display the image shot by the image pickup unit in accordance with an instruction by the instruction unit, an obtaining unit configured to obtain position information input by the photographer with respect to the image displayed by the first display processing unit, a second display processing unit configured to display options based on the position information obtained by the obtaining unit, and an assistance unit configured to perform an assistance for next shooting based on an option selected by the photographer from among the options displayed by the second display processing unit.
    Type: Application
    Filed: June 14, 2016
    Publication date: December 22, 2016
    Inventors: Ryuichi Kobayashi, Toshiaki Ueguri, Emi Kondo, Hiroshi Matsushima, Hiroshi Nakamura, Yutaka Yamamoto
  • Publication number: 20160330356
    Abstract: A setting unit sets a smaller limitation angle for rotation of a second case rotated by a driving unit relative to a first case when information output from a sensor disposed in a back surface of a first case indicates that an object does not exist in a certain range when compared with a case where the information output from the sensor indicates that an object exists in the certain range.
    Type: Application
    Filed: April 29, 2016
    Publication date: November 10, 2016
    Inventors: Keiichiro Saito, Yutaka Yamamoto, Toshiki Miyakawa
  • Patent number: 9445458
    Abstract: An induction heating device includes: a resonant circuit provided with a coil heating a workpiece inductively and a capacitor, the coil and the capacitor being coupled in parallel with each other; a switching element coupled in series with the resonant circuit; a power supply which applies to the resonant circuit, a direct-current input voltage whose instantaneous value can be changed with the lapse of time; and a power controller which controls power to the workpiece by turning the switching element ON at a certain time and changing an ON period of the switching element, and the power controller is characterized by turning the switching element ON with a delay of an integral multiple of a resonant period of the resonant circuit if a value of power to the workpiece is equal to or lower than a first threshold which is predetermined.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: September 13, 2016
    Assignee: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventors: Seiichi Kirikubo, Atsushi Yamaguchi, Yutaka Yamamoto, Takahiro Tsujimoto, Hiroyuki Watanabe, Hidenori Mine, Masato Ishii
  • Patent number: 9407162
    Abstract: A method including: setting a weighting function based on an amount of change in impedance of a control target; and determining, for a power controller, a transfer function composed of a transfer function of an internal model obtainable by performing Laplace transform on the voltage reference value and a transfer function of a partial controller, the transfer function of the partial controller being for outputting the control output after receiving, as an input, an output of the transfer function of the internal model, wherein the determining includes determining the transfer function of the partial controller using an H?control theory so as to reduce (i) a first amount of control obtainable by multiplying the control output and the weighting function and (ii) a second amount of control that is an output of the transfer function of the internal model.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: August 2, 2016
    Assignee: PANASONIC CORPORATION
    Inventors: Takahiro Kudoh, Tatsuto Kinjo, Seiya Miyazaki, Yutaka Yamamoto, Masaaki Nagahara, Naoki Hayashi
  • Patent number: 9354566
    Abstract: An image forming apparatus having: a power source applying alternating current voltage to the magnetizing coil; a demagnetizing coil switchable between a conductive state and a cutoff state, and when in the conductive state, cancelling out a portion of a magnetic flux produced by the magnetizing coil; a contact switch and a semiconductor switch electrically connected in parallel, and, in combination, bringing the demagnetizing coil into the conductive state or the cutoff state; and a control unit opening or closing the switches separately. The control unit: opens or closes the semiconductor switch in synchronization with a zero-crossing of the alternating current voltage at least when the contact switch is open; opens or closes the contact switch only when the semiconductor switch is closed; and opens the semiconductor switch when the demagnetizing coil brought into the conductive state by the contact switch needs to be maintained in the conductive state.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: May 31, 2016
    Assignee: KONICA MINOLTA, INC.
    Inventors: Seiichi Kirikubo, Masahiro Kamiya, Takahiro Tsujimoto, Yutaka Yamamoto, Hidenori Mine, Nobuhiro Matsuo
  • Patent number: 9354563
    Abstract: An electromagnetic induction heating apparatus comprises: a resonance circuit that includes a inductor and a capacitor; a direct-current electric power supply; and a switching element performing ON and OFF switching of electric power supplied to the resonance circuit by the direct-current electric power supply; performs intermittent control of the electric power supply by controlling the ON and OFF switching at regular intervals, and by performing control to stop the electric power supply when not controlling the ON and OFF switching, wherein during the intermittent control, the switching control unit performs gradual control such that, upon beginning the control of the ON and OFF switching, the electric power supply gradually increases to reach a target value, and upon stopping the control of the ON and OFF switching, the electric power supply gradually decreases from the target value until stopping, such that the gradual decrease involves fewer steps than the gradual increase.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: May 31, 2016
    Assignee: KONICA MINOLTA, INC.
    Inventors: Seiichi Kirikubo, Masaaki Goto, Yutaka Yamamoto, Takahiro Tsujimoto, Hiroyuki Watanabe, Hidenori Mine, Masato Ishii
  • Publication number: 20160028234
    Abstract: A power system stabilization method includes: receiving a power command value from a power control center that monitors a power system; transmitting the power command value to a power supply device; causing the power supply device to supply power to the power system according to the power command value; generating a prediction command value according to past power command values received from the power control center, the prediction command value being a prediction value of a power command value to be transmitted from the power control center next after the power command value; transmitting the prediction command value to a power supply device; causing the power supply device to supply power to the power system according to the power prediction command value; receiving the next power command value from the power control center; transmitting the next power command value to the power supply device.
    Type: Application
    Filed: October 8, 2015
    Publication date: January 28, 2016
    Inventors: KENICHI WATANABE, SEIYA MIYAZAKI, TAKAHIRO KUDOH, YUTAKA YAMAMOTO, MASAAKI NAGAHARA, GOU NISHIDA
  • Patent number: 9158300
    Abstract: A method for designing a control apparatus includes: determining first, second and third threshold values; setting a first weighting function for calculating a first controlled variable by being multiplied by a difference between a control target value and an output value of a storage battery, a second weighting function for calculating a second controlled variable by being multiplied by the output value of the storage battery, and a third weighting function for calculating a third controlled variable by being multiplied by an integrated value of the output value of the storage battery; and determining a transfer function of the control apparatus in accordance with an H-infinity control theory such that the first controlled variable, the second controlled variable and the third controlled variable are respectively smaller than the first, second and third threshold values.
    Type: Grant
    Filed: May 28, 2012
    Date of Patent: October 13, 2015
    Assignee: PANASONIC CORPORATION
    Inventors: Seiya Miyazaki, Takahiro Kudoh, Yutaka Yamamoto, Masaaki Nagahara
  • Publication number: 20150244921
    Abstract: An image pickup apparatus capable of obtaining a high AF accuracy while reducing unnecessary power consumption and a release delay when photographing while detecting a focusing state using auxiliary light. The image pickup apparatus is capable of mounting a light emission device with which a first light emitting section of which an irradiation direction can be changed with respect to a body of the light emission device and a second light emitting section of which an irradiation direction is fixed to the body are provided. An obtaining unit obtains information about the irradiation direction of the first light emitting section. A control unit controls one of the first light emitting section and the second light emitting section on the basis of the information about the irradiation direction obtained as a light emitting section for irradiating with auxiliary light at the time when the focus detection unit performs focus detection.
    Type: Application
    Filed: February 26, 2015
    Publication date: August 27, 2015
    Inventor: Yutaka Yamamoto
  • Patent number: 9052660
    Abstract: An image forming apparatus includes a timing roller for conveying paper in the image forming apparatus, a first motor receiving supply of electric power from a power source for driving the timing roller, a second motor receiving supply of electric power from the power source, a sensor for detecting whether a jam occurs at the conveyance roller, a drive relay for cutting off supply of electric power from the power source to the first and second motors, if occurrence of a jam is detected, and a control circuit for controlling an operating state of the second motor such that regenerative power produced at the first motor due to rotation of the conveyance roller is supplied to the second motor, if occurrence of a jam is detected.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: June 9, 2015
    Assignee: KONICA MINOLTA, INC.
    Inventors: Hidenori Mine, Takahiro Tsujimoto, Masahiro Kamiya, Yutaka Yamamoto, Nobuhiro Matsuo, Seiichi Kirikubo
  • Publication number: 20150131346
    Abstract: A method including: setting a weighting function based on an amount of change in impedance of a control target; and determining, for a power controller, a transfer function composed of a transfer function of an internal model obtainable by performing Laplace transform on the voltage reference value and a transfer function of a partial controller, the transfer function of the partial controller being for outputting the control output after receiving, as an input, an output of the transfer function of the internal model, wherein the determining includes determining the transfer function of the partial controller using an H?control theory so as to reduce (i) a first amount of control obtainable by multiplying the control output and the weighting function and (ii) a second amount of control that is an output of the transfer function of the internal model.
    Type: Application
    Filed: April 1, 2013
    Publication date: May 14, 2015
    Applicant: Panasonic Corporation
    Inventors: Takahiro Kudoh, Tatsuto Kinjo, Seiya Miyazaki, Yutaka Yamamoto, Masaaki Nagahara, Naoki Hayashi
  • Patent number: 8923653
    Abstract: Super-resolution processing is regarded as a kind of intersample interpolation process and performed by using a linear interpolation filter designed according to sampled-data control theory. In an error-system model used in the process of designing the filter, a pre-filter is disposed before a sampler and a post-filter is disposed after the zero-order hold in a signal restoration system. At least either one of the characteristic Q(s) of the pre-filter or the characteristic P(s) of the post-filter is designed to be a low-pass characteristic, whereby the gain of the characteristic K(z) of a digital filter within a middle-to-high frequency range is raised. Raising the gain makes jaggies more prominent. To reduce this effect, in an actual processing system, the image to be processed is passed through a low-pass filter to reduce high-frequency components before the linear interpolation is performed.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: December 30, 2014
    Inventors: Yutaka Yamamoto, Kengo Zenitani
  • Patent number: 8897663
    Abstract: An induction heating device including a coil which inductively heats a workpiece of a fuser with an input voltage obtained from an alternating current voltage by rectification; a switching element coupled in series with the coil; a peak voltage detector which detects a peak value of the input voltage; an effective voltage detector which detects an effective value of the input voltage; a crest factor calculator which calculates an actual crest factor of the input voltage based on the peak value of the input voltage and the effective value of the input voltage; and a power controller which achieves control of power to the fuser by controlling the duty ratio of ON and OFF periods of the switching element.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: November 25, 2014
    Assignee: Konica Minolta, Inc.
    Inventors: Atsushi Yamaguchi, Seiichi Kirikubo, Yutaka Yamamoto, Takahiro Tsujimoto, Hiroyuki Watanabe, Hidenori Mine, Masato Ishii