Patents by Inventor Shohei Ikeda

Shohei Ikeda 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: 20240356394
    Abstract: A rotor includes a rotor core, a shaft which is disposed inside the rotor core and extends in an axial direction, and a plurality of permanent magnets which are provided in the rotor core, in which the rotor core is provided with a lightening hole, and a number of the lightening hole is different from a number of pole pairs of the plurality of permanent magnets.
    Type: Application
    Filed: October 29, 2021
    Publication date: October 24, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kenta MOTOYOSHI, Hiroko IKEDA, Yuki NISHIMURA, Takashi Takashi, Masafumi OKAZAKI, Shohei FUJIKURA
  • Publication number: 20240291307
    Abstract: A charging device includes: a plurality of legs including respective upper and lower arms having respective switching elements, the upper and lower arms being connected to a battery and a negative pole of a DC charger, respectively; a motor having three phases with a neutral point connected to a positive pole of the DC charger; a driver that drives the switching elements with respective PWM signals; and a controller that monitors a current from the legs to the battery, and instructs the driver to apply duty ratios of the PWM signals so that a fluctuation width of the monitored current is reduced. Further, the controller monitors the measurement result of the sensor at a period other than 1/N of a period of a carrier of the PWM signals, where N is a number of the plurality of legs used for charging the battery.
    Type: Application
    Filed: February 23, 2024
    Publication date: August 29, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kosuke IKEDA, Shohei OI
  • Publication number: 20230110788
    Abstract: The learning device learns a tracking model used for a radar device. A first acquisition unit acquires, from a radar device, a target detection information indicating a position of a target detected based on a received wave, and a track of the target calculated based on the target detection information. A second acquisition unit acquires a target position information indicating a position of the target. A learning data generation unit generates learning data using the target detection information, the track, and the target position information. A learning processing unit learns a tracking model for performing tracking processing of the target based on the target detection information, using the learning data.
    Type: Application
    Filed: February 14, 2020
    Publication date: April 13, 2023
    Applicant: NEC Corporation
    Inventors: Takashi SHIBATA, Motoki Masaka, Yuichi Abe, Kentarou Kudou, Masanori Kato, Shohei Ikeda
  • Publication number: 20230061202
    Abstract: The learning device learns the target detection model used in the radar device. The learning device includes an acquisition unit, a learning data generation unit, and a learning processing unit. The acquisition unit acquires a reception signal generated based on the received wave and a tracking signal generated based on the reception signal from the radar device. The learning data generation unit generates learning data using the reception signal and the tracking signal. The learning processing unit learns a target detection model that detects a target from the reception signal, using the learning data.
    Type: Application
    Filed: January 21, 2020
    Publication date: March 2, 2023
    Applicant: NEC Corporation
    Inventors: Motoki MASAKA, Takashi Shibata, Yuichi Abe, Kentarou Kudou, Masanori Kato, Shohei Ikeda
  • Publication number: 20230056489
    Abstract: The learning device includes an acquisition unit, a learning data generation unit, and a learning processing unit. The acquisition unit acquires operation data generated during an operation of a radar device and the operation history data indicating operations performed by an operator on the radar device from the radar device. The learning data generation unit generates the learning data using the operation data and the operation history data. The learning processing unit learns an operation determination model that determines an operation to be performed on the radar device based on the operation data, using the learning data.
    Type: Application
    Filed: February 14, 2020
    Publication date: February 23, 2023
    Applicant: NEC Corporation
    Inventors: Takashi SHIBATA, Motoki Masaka, Yuichi Abe, Kentarou Kudou, Masanori Kato, Shohei Ikeda
  • Patent number: 11422248
    Abstract: The present invention relates to a signal processing device for accurately detecting a moving object without being influenced by the speed of the moving object. This signal processing device is provided with: at least two cross-correlation calculation units for calculating cross-correlation functions for the waveform of a reflection signal obtained through the reflection, by an object, of a transmission signal having a varying frequency and different correlation waveforms generated from the waveform of the transmission signal; a combination unit for combining the at least two cross-correlation functions from the at least two cross-correlation calculation units so as not to be separated in the frequency shift direction; and a detection unit for detecting the object on the basis of the cross-correlation function resulting from the combination.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: August 23, 2022
    Assignee: NEC CORPORATION
    Inventors: Osamu Hoshuyama, Kentarou Kudou, Shohei Ikeda
  • Publication number: 20220186350
    Abstract: The seamless steel pipe according to the present disclosure includes a base material and a decarburized layer formed on the surface of the base material. The chemical composition of the base material consists of, in mass %, C: 0.20 to 0.50%, Si: 0.05 to 0.50%, Mn: 0.01 to 1.00%, P: 0.0300% or less, S: 0.0100% or less, Al: 0.005 to 0.100%, Cr: 0.30 to 1.20%, Mo: 0.30 to 1.50%, Ti: 0.002 to 0.050%, V: 0.01 to 0.30%, Nb: 0.002 to 0.100%, B: 0.0001 to 0.0050%, N: 0.0100% or less, O: 0.0050% or less, and with the balance being Fe and impurities. The base material has a yield strength of 655 MPa or more, and a yield ratio of 85.0% or more. The decarburized layer has a depth of 150 ?m or less.
    Type: Application
    Filed: March 16, 2020
    Publication date: June 16, 2022
    Inventors: Seiya OKADA, Hiroki KAMITANI, Nobuaki KOMATSUBARA, Yusaku TOMIO, Shohei IKEDA, Naoya SHIRASAWA
  • Patent number: 11231495
    Abstract: In order to achieve object detection that does not detect an object moving at a speed within a prescribed speed range, the present invention comprises at least two cross-correlation calculation units which each calculate a cross correlation function between a waveform of a reflection signal obtained when a transmission signal having changing frequencies is reflected by a target object, and a different correlation waveform generated from the waveform of the transmission signal, and a synthesis unit that synthesizes at least two cross-correlation functions from at least the two cross-correlation calculation units so as to make detection of a target object moving at a speed within the prescribed speed range less likely, and that outputs the synthesis results to a post-processing unit.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: January 25, 2022
    Assignee: NEC CORPORATION
    Inventors: Osamu Hoshuyama, Kentarou Kudou, Shohei Ikeda
  • Patent number: 11002826
    Abstract: A distributed-cooperative-information-processing device according to the present invention is allocated in a distributed manner within a predetermined field. The device measures an environment by using a sensor device; generates estimate determination information being information indicating a probability of a hypothetical set of states in the environment, based on a measurement result of the environment; receives the estimate determination information generated by another distributed-cooperative-information-processing device within the field; manages information of the another distributed-cooperative-information-processing device; and integrates the estimate determination information generated by own device and the estimate determination information received from the another distributed-cooperative-information-processing device.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: May 11, 2021
    Assignee: NEC CORPORATION
    Inventors: Nobuharu Kami, Kentarou Kudou, Shohei Ikeda
  • Publication number: 20200081111
    Abstract: The present invention relates to a signal processing device for accurately detecting a moving object without being influenced by the speed of the moving object. This signal processing device is provided with: at least two cross-correlation calculation units for calculating cross-correlation functions for the waveform of a reflection signal obtained through the reflection, by an object, of a transmission signal having a varying frequency and different correlation waveforms generated from the waveform of the transmission signal; a combination unit for combining the at least two cross-correlation functions from the at least two cross-correlation calculation units so as not to be separated in the frequency shift direction; and a detection unit for detecting the object on the basis of the cross-correlation function resulting from the combination.
    Type: Application
    Filed: October 4, 2017
    Publication date: March 12, 2020
    Applicant: NEC Corporation
    Inventors: Osamu HOSHUYAMA, Kentarou KUDOU, Shohei IKEDA
  • Publication number: 20200081109
    Abstract: In order to achieve object detection that does not detect an object moving at a speed within a prescribed speed range, the present invention comprises at least two cross-correlation calculation units which each calculate a cross correlation function between a waveform of a reflection signal obtained when a transmission signal having changing frequencies is reflected by a target object, and a different correlation waveform generated from the waveform of the transmission signal, and a synthesis unit that synthesizes at least two cross-correlation functions from at least the two cross-correlation calculation units so as to make detection of a target object moving at a speed within the prescribed speed range less likely, and that outputs the synthesis results to a post-processing unit.
    Type: Application
    Filed: March 23, 2018
    Publication date: March 12, 2020
    Applicant: NEC Corporation
    Inventors: Osamu HOSHUYAMA, Kentarou KUDOU, Shohei IKEDA
  • Publication number: 20190187274
    Abstract: A distributed-cooperative-information-processing device according to the present invention is allocated in a distributed manner within a predetermined field. The device measures an environment by using a sensor device; generates estimate determination information being information indicating a probability of a hypothetical set of states in the environment, based on a measurement result of the environment; receives the estimate determination information generated by another distributed-cooperative-information-processing device within the field; manages information of the another distributed-cooperative-information-processing device; and integrates the estimate determination information generated by own device and the estimate determination information received from the another distributed-cooperative-information-processing device.
    Type: Application
    Filed: May 15, 2017
    Publication date: June 20, 2019
    Applicant: NEC Corporation
    Inventors: Nobuharu KAMI, Kentarou KUDOU, Shohei IKEDA
  • Patent number: 9124470
    Abstract: A reception signal demodulation device which converts a modulated reception signal into a digital signal and performs signal reconstruction includes a demodulator which demodulates the received signal, a matched filter which improves a signal-to-noise power ratio of the signal from the demodulator, a threshold value discriminator which determines a compression rate based on the signal from the matched filter, and a reconstruction circuit which compresses the signal from the matched filter, converts it into the digital signal, and performs signal reconstruction from the signal converted into the digital signal based on the compression rate.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: September 1, 2015
    Assignee: NEC CORPORATION
    Inventors: Hiroyuki Ishii, Shohei Ikeda
  • Publication number: 20140348219
    Abstract: A reception signal demodulation device which converts a modulated reception signal into a digital signal and performs signal reconstruction includes a demodulator which demodulates the received signal, a matched filter which improves a signal-to-noise power ratio of the signal from the demodulator, a threshold value discriminator which determines a compression rate based on the signal from the matched filter, and a reconstruction circuit which compresses the signal from the matched filter, converts it into the digital signal, and performs signal reconstruction from the signal converted into the digital signal based on the compression rate.
    Type: Application
    Filed: February 13, 2013
    Publication date: November 27, 2014
    Applicant: NEC Corporation
    Inventors: Hiroyuki Ishii, Shohei Ikeda
  • Patent number: 7732532
    Abstract: A multistage propylene-based polymer including the following components (A) and (B): (A) 5 to 20 wt % of a propylene homopolymer component or a copolymer component of propylene and an ?-olefin with 2 to 8 carbon atoms having an intrinsic viscosity [?] of more than 10 dL/g in tetralin at 135° C.; and (B) 80 to 95 wt % of a propylene homopolymer component or a copolymer component of propylene and an ?-olefin with 2 to 8 carbon atoms having an intrinsic viscosity [?] of 0.5 to 3.0 dL/g in tetralin at 135° C.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: June 8, 2010
    Assignee: Prime Polymer Co., Ltd.
    Inventors: Ryoichi Tsunori, Yasuhiko Otsuki, Tsutomu Onodera, Shohei Ikeda, Masayuki Shinohara
  • Publication number: 20070208138
    Abstract: A multistage propylene-based polymer including the following components (A) and (B): (A) 5 to 20 wt % of a propylene homopolymer component or a copolymer component of propylene and an ?-olefin with 2 to 8 carbon atoms having an intrinsic viscosity [?] of more than 10 dL/g in tetralin at 135° C.; and (B) 80 to 95 wt % of a propylene homopolymer component or a copolymer component of propylene and an ?-olefin with 2 to 8 carbon atoms having an intrinsic viscosity [?] of 0.5 to 3.0 dL/g in tetralin at 135° C.
    Type: Application
    Filed: March 15, 2005
    Publication date: September 6, 2007
    Applicant: Prime Polymer Co., Ltd.
    Inventors: Ryoichi Tsunori, Yasuhiko Otsuki, Tsutomu Onodera, Shohei Ikeda, Masayuki Shinohara