Patents by Inventor Kenji Miyanaga

Kenji Miyanaga 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).

  • Patent number: 11192136
    Abstract: To provide a powder resin coating method and powder resin coating device which can maintain a powder surface as flat irrespective of changes in the average particle size of powder resin. A powder resin coating device (1) includes a powder fluidizing bed (2) storing powder resin, a vibration mechanism (5) connected to the powder fluidizing bed (2), and a control device (8) controlling the frequency of the vibration mechanism (5). The control device (8) includes an average particle size estimation unit (82) that estimates the average particle size of powder resin stored within the powder fluidizing bed (2); an optimum frequency determination unit (83) that determines an optimum frequency for causing the powder surface to flatten based on the average particle size estimated by the average particle size estimation unit (82); and a frequency control unit (84) causing the vibration mechanism (5) to vibrate at the determined optimum frequency.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: December 7, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Hiroshi Kunieda, Kenji Miyanaga, Junji Nakajima, Hiroomi Shimizu, Hirokazu Akiyoshi
  • Publication number: 20210299698
    Abstract: Provided is a powder coating device. The powder coating device performs powder coating by inserting peeled parts at a lower end of a stator into a powder flow tank filled with a powder resin and includes: a surface height measurement part measuring a surface height of the powder resin; a peel height measurement part measuring a height of upper ends of the peeled parts; a swing part swinging the powder resin; an air supply part supplying air toward the powder flow tank via a porous body provided below an open bottom surface of the powder flow tank, and flowing the powder resin; and an adjustment part adjusting at least one of an air flow rate, a swing amount of the powder flow tank, an entry posture and an entry amount of the stator according to measurement results of the surface height measurement part and the peel height measurement part.
    Type: Application
    Filed: March 29, 2021
    Publication date: September 30, 2021
    Applicant: Honda Motor Co., Ltd.
    Inventors: Hiroomi SHIMIZU, Kenji MIYANAGA
  • Publication number: 20200300741
    Abstract: A flow inspection method includes: a flow step of making powder resin flow in a housing portion of a flow tank; a viscosity measurement step of measuring a viscosity of the powder resin flowing in the housing portion; and a judgment step of judging whether or not an estimate of a bulk density of the powder resin flowing in the housing portion is less than or equal to a bulk density permissible value, the estimate being obtainable from a correlation, calculated in advance, between the bulk density and a viscosity of the powder resin flowing in the housing portion, and a measured value of the viscosity obtained in the viscosity measurement step.
    Type: Application
    Filed: March 20, 2020
    Publication date: September 24, 2020
    Inventors: Kenji Miyanaga, Hiroshi Kunieda, Yosuke Suzuki, Naofumi Sugai, Takao Endo
  • Publication number: 20190301917
    Abstract: First to eighth laser measurement sections (30a) to (30h) of a laser measurement unit (30) measures a height of a surface of powder resins (15) in a coil insertion range CA for every angular degree in a circumferential direction of a stator core (2). A control unit (18) computes the number of points where the height of the surface is lower than a predetermined height among measurement results at multiple points measured by the first to eighth laser measurement sections (30a) to (30h), where the number of points is defined as an index value indicative of a dispersion of the measurement results. When it has been determined that the index value exceeds a first predetermined value, a notification is issued by outputting from a speaker (32) a sound indicative of the fact that the index value that has been computed exceeds the first predetermined value.
    Type: Application
    Filed: March 22, 2019
    Publication date: October 3, 2019
    Inventors: Hiroomi Shimizu, Hiroaki Matsumoto, Kenji Miyanaga, Junji Nakajima, Hiroshi Kunieda
  • Publication number: 20190134662
    Abstract: To provide a powder resin coating method and powder resin coating device which can maintain a powder surface as flat irrespective of changes in the average particle size of powder resin. A powder resin coating device (1) includes a powder fluidizing bed (2) storing powder resin, a vibration mechanism (5) connected to the powder fluidizing bed (2), and a control device (8) controlling the frequency of the vibration mechanism (5). The control device (8) includes an average particle size estimation unit (82) that estimates the average particle size of powder resin stored within the powder fluidizing bed (2); an optimum frequency determination unit (83) that determines an optimum frequency for causing the powder surface to flatten based on the average particle size estimated by the average particle size estimation unit (82); and a frequency control unit (84) causing the vibration mechanism (5) to vibrate at the determined optimum frequency.
    Type: Application
    Filed: November 8, 2018
    Publication date: May 9, 2019
    Inventors: Hiroshi Kunieda, Kenji Miyanaga, Junji Nakajima, Hiroomi Shimizu, Hirokazu Akiyoshi
  • Patent number: 10243640
    Abstract: Provided is a phased array transmission device including: a plurality of transmission branches, each being provided with a phase shift unit that applies a phase rotation to a baseband signal, a DC offset correction unit that adds a first correction value to an output signal of the phase shift unit, and a mixer that subjects an output signal of the DC offset correction unit to a frequency conversion to a high frequency band; and a correction control unit that calculates a second correction value with which a carrier leak component included in an output signal of the mixer is minimized, for each of a plurality of candidates for a phase rotation amount that is set for the phase rotation, and determines the first correction value on the basis of the second correction value.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: March 26, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kenji Miyanaga, Yukio Okazaki
  • Patent number: 9903908
    Abstract: A nonlinear distortion detection device that includes a test signal generator that generates a test signal and outputs the test signal to have the power amplifier amplify the test signal, a Fourier transformer that converts an output signal of the power amplifier to a signal in a frequency domain, and a distortion factor calculator that calculates a distortion factor of the power amplifier based on amplitude information and phase information of the signal in the frequency domain.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: February 27, 2018
    Assignee: PANASONIC CORPORATION
    Inventors: Kenji Miyanaga, Noriaki Saito
  • Publication number: 20170288762
    Abstract: Provided is a phased array transmission device including: a plurality of transmission branches, each being provided with a phase shift unit that applies a phase rotation to a baseband signal, a DC offset correction unit that adds a first correction value to an output signal of the phase shift unit, and a mixer that subjects an output signal of the DC offset correction unit to a frequency conversion to a high frequency band; and a correction control unit that calculates a second correction value with which a carrier leak component included in an output signal of the mixer is minimized, for each of a plurality of candidates for a phase rotation amount that is set for the phase rotation, and determines the first correction value on the basis of the second correction value.
    Type: Application
    Filed: March 9, 2017
    Publication date: October 5, 2017
    Inventors: KENJI MIYANAGA, YUKIO OKAZAKI
  • Patent number: 9595925
    Abstract: A distortion-compensating power amplifier compensates for nonlinear distortion in a power amplifier. The distortion-compensating power amplifier includes: a predistorter that performs pre-distortion processing, the pre-distortion processing applying an inverse characteristic of a distortion characteristic that is generated in the power amplifier to an input signal; a filter that performs band limitation on the pre-distorted input signal by using a frequency characteristic that is asymmetric with respect to a center frequency of the input signal, the filter having a filter coefficient that is a complex number; a down-sampler that down-samples the band-limited input signal; and a digital-to-analog converter that converts the down-sampled input signal from a digital signal to an analog signal.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: March 14, 2017
    Assignee: PANASONIC CORPORATION
    Inventors: Kenji Miyanaga, Koji Takinami
  • Patent number: 9525581
    Abstract: In signal processing of the present disclosure, an abnormal correction value as a correction value for correcting a quadrature error that occurs in quadrature modulation is output in malfunction determining processing, and a normal correction value as the correction value is output in calibration processing. The presence or absence of malfunction in the signal processing is determined on the basis of the levels of carrier leak and image leak of the quadrature modulated signal.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: December 20, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Noriaki Saito, Kenji Miyanaga, Shigeki Nakamura
  • Publication number: 20160285669
    Abstract: In signal processing of the present disclosure, an abnormal correction value as a correction value for correcting a quadrature error that occurs in quadrature modulation is output in malfunction determining processing, and a normal correction value as the correction value is output in calibration processing. The presence or absence of malfunction in the signal processing is determined on the basis of the levels of carrier leak and image leak of the quadrature modulated signal.
    Type: Application
    Filed: February 8, 2016
    Publication date: September 29, 2016
    Inventors: NORIAKI SAITO, KENJI MIYANAGA, SHIGEKI NAKAMURA
  • Patent number: 9438301
    Abstract: In the stop state of a VCO and an injection locked frequency divider, an ILFD controller sets the control parameter of an injection locked frequency divider on the basis of the frequencies of a reference signal and the frequency-divided signal measured according to the control parameter of the injection locked frequency divider. While the injection locked frequency divider is operated and in the stop state of the VCO, the ILFD controller sets the control parameter of the injection locked frequency divider on the basis of the frequencies of the reference signal and the frequency-divided signal measured according to the control parameter of the injection locked frequency divider.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: September 6, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoichi Nagaso, Kenji Miyanaga, Takahiro Shima
  • Publication number: 20160118946
    Abstract: A distortion-compensating power amplifier compensates for nonlinear distortion in a power amplifier. The distortion-compensating power amplifier includes: a predistorter that performs pre-distortion processing, the pre-distortion processing applying an inverse characteristic of a distortion characteristic that is generated in the power amplifier to an input signal; a filter that performs band limitation on the pre-distorted input signal by using a frequency characteristic that is asymmetric with respect to a center frequency of the input signal, the filter having a filter coefficient that is a complex number; a down-sampler that down-samples the band-limited input signal; and a digital-to-analog converter that converts the down-sampled input signal from a digital signal to an analog signal.
    Type: Application
    Filed: October 14, 2015
    Publication date: April 28, 2016
    Inventors: KENJI MIYANAGA, KOJI TAKINAMI
  • Patent number: 9264913
    Abstract: A wireless communication device of the present disclosure has: a transmitter having a plurality of transmission circuit branches; a receiver having a plurality of reception circuit branches; a transmission phase switch; a reception phase switch; and a phase/transmission-reception controller, and has a beam-forming function. When phase switching is performed during a plurality of training packets for setting directivity, the phase/transmission-reception controller controls the transmission phase switch and the reception phase switch by setting a same phase for each of m (m being an integer of 2 or more) number of continuous training packets. In addition, the phase/transmission-reception controller performs control such that the transmission of the transmitter and the reception of the receiver are set to an OFF state in at least one or more training packets from the beginning of the m number of continuous training packets.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: February 16, 2016
    Assignee: Panasonic Corporation
    Inventors: Takayuki Tsukizawa, Noriaki Saito, Kenji Miyanaga
  • Publication number: 20160036485
    Abstract: In the stop state of a VCO and an injection locked frequency divider, an ILFD controller sets the control parameter of an injection locked frequency divider on the basis of the frequencies of a reference signal and the frequency-divided signal measured according to the control parameter of the injection locked frequency divider. While the injection locked frequency divider is operated and in the stop state of the VCO, the ILFD controller sets the control parameter of the injection locked frequency divider on the basis of the frequencies of the reference signal and the frequency-divided signal measured according to the control parameter of the injection locked frequency divider.
    Type: Application
    Filed: March 31, 2014
    Publication date: February 4, 2016
    Inventors: Yoichi Nagaso, Kenji Miyanaga, Takahiro Shima
  • Patent number: 9166859
    Abstract: A variable gain amplifier amplifies a baseband signal. A quadrature modulator quadrature-modulates the amplified baseband signal to generate a high-frequency signal. A power amplifier amplifies the generated high-frequency signal. An antenna transmits the amplified high-frequency signal. A detector detects the amplified high-frequency signal. A first nonvolatile memory stores the desired transmission power of the high-frequency signal to be transmitted from the antenna. A controller adjusts the gain of the variable gain amplifier depending on the output of the detector and the transmission power stored in the first nonvolatile memory.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: October 20, 2015
    Assignee: PANASONIC CORPORATION
    Inventors: Noriaki Saito, Kenji Miyanaga, Takayuki Tsukizawa
  • Patent number: 9130737
    Abstract: A signal-generating circuit includes a voltage-controlled oscillator that generates an oscillated signal; a first frequency divider that generates a first divided signal by dividing the oscillated signal; a second frequency divider that generates a second divided signal by dividing the divided signal; a phase comparator that receives as input the second divided signal and a reference signal and outputs two signals corresponding to a phase difference therebetween; a loop filter that extracts a low frequency signal between the two signals to be output to the voltage-controlled oscillator; a third frequency divider that generates a third divided signal by dividing the first divided signal; a first frequency converter that generates a first frequency converted signal by multiplying the oscillated signal by the third divided signal; and a first multiplier that generates a multiplied signal by multiplying the first frequency converted signal by a first multiplication number.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: September 8, 2015
    Assignee: PANASONIC CORPORATION
    Inventors: Koji Takinami, Takayuki Tsukizawa, Kenji Miyanaga, Shunsuke Hirano
  • Publication number: 20150249491
    Abstract: A wireless communication device of the present disclosure has: a transmitter having a plurality of transmission circuit branches; a receiver having a plurality of reception circuit branches; a transmission phase switch; a reception phase switch; and a phase/transmission-reception controller, and has a beam-forming function. When phase switching is performed during a plurality of training packets for setting directivity, the phase/transmission-reception controller controls the transmission phase switch and the reception phase switch by setting a same phase for each of m (m being an integer of 2 or more) number of continuous training packets. In addition, the phase/transmission-reception controller performs control such that the transmission of the transmitter and the reception of the receiver are set to an OFF state in at least one or more training packets from the beginning of the m number of continuous training packets.
    Type: Application
    Filed: February 17, 2015
    Publication date: September 3, 2015
    Inventors: TAKAYUKI TSUKIZAWA, NORIAKI SAITO, KENJI MIYANAGA
  • Publication number: 20150241494
    Abstract: A nonlinear distortion detection device that includes a test signal generator that generates a test signal and outputs the test signal to have the power amplifier amplify the test signal, a Fourier transformer that converts an output signal of the power amplifier to a signal in a frequency domain, and a distortion factor calculator that calculates a distortion factor of the power amplifier based on amplitude information and phase information of the signal in the frequency domain.
    Type: Application
    Filed: February 16, 2015
    Publication date: August 27, 2015
    Inventors: KENJI MIYANAGA, NORIAKI SAITO
  • Patent number: 9118459
    Abstract: A wireless communication device includes a BBIC for performing baseband signal processing, an RFIC for performing radio-frequency signal processing, and a quartz resonator. The RFIC has a storage unit which stores an adjustment value for adjustment of a clock frequency that is based on an oscillation frequency of the quartz resonator, and outputs the adjustment value when its resetting active state is canceled; a frequency adjusting unit for adjusting the clock frequency according to the adjustment value; and an RF signal processing unit which operates based on the clock signal and performs the radio-frequency signal processing.
    Type: Grant
    Filed: December 25, 2013
    Date of Patent: August 25, 2015
    Assignee: PANASONIC CORPORATION
    Inventors: Kenji Miyanaga, Noriaki Saito, Takayuki Tsukizawa