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).
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Publication number: 20240356394Abstract: 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: ApplicationFiled: October 29, 2021Publication date: October 24, 2024Applicant: Mitsubishi Electric CorporationInventors: Kenta MOTOYOSHI, Hiroko IKEDA, Yuki NISHIMURA, Takashi Takashi, Masafumi OKAZAKI, Shohei FUJIKURA
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Publication number: 20240291307Abstract: 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: ApplicationFiled: February 23, 2024Publication date: August 29, 2024Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kosuke IKEDA, Shohei OI
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Publication number: 20230110788Abstract: 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: ApplicationFiled: February 14, 2020Publication date: April 13, 2023Applicant: NEC CorporationInventors: Takashi SHIBATA, Motoki Masaka, Yuichi Abe, Kentarou Kudou, Masanori Kato, Shohei Ikeda
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Publication number: 20230061202Abstract: 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: ApplicationFiled: January 21, 2020Publication date: March 2, 2023Applicant: NEC CorporationInventors: Motoki MASAKA, Takashi Shibata, Yuichi Abe, Kentarou Kudou, Masanori Kato, Shohei Ikeda
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Publication number: 20230056489Abstract: 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: ApplicationFiled: February 14, 2020Publication date: February 23, 2023Applicant: NEC CorporationInventors: Takashi SHIBATA, Motoki Masaka, Yuichi Abe, Kentarou Kudou, Masanori Kato, Shohei Ikeda
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Patent number: 11422248Abstract: 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: GrantFiled: October 4, 2017Date of Patent: August 23, 2022Assignee: NEC CORPORATIONInventors: Osamu Hoshuyama, Kentarou Kudou, Shohei Ikeda
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Publication number: 20220186350Abstract: 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: ApplicationFiled: March 16, 2020Publication date: June 16, 2022Inventors: Seiya OKADA, Hiroki KAMITANI, Nobuaki KOMATSUBARA, Yusaku TOMIO, Shohei IKEDA, Naoya SHIRASAWA
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Patent number: 11231495Abstract: 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: GrantFiled: March 23, 2018Date of Patent: January 25, 2022Assignee: NEC CORPORATIONInventors: Osamu Hoshuyama, Kentarou Kudou, Shohei Ikeda
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Patent number: 11002826Abstract: 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: GrantFiled: May 15, 2017Date of Patent: May 11, 2021Assignee: NEC CORPORATIONInventors: Nobuharu Kami, Kentarou Kudou, Shohei Ikeda
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Publication number: 20200081111Abstract: 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: ApplicationFiled: October 4, 2017Publication date: March 12, 2020Applicant: NEC CorporationInventors: Osamu HOSHUYAMA, Kentarou KUDOU, Shohei IKEDA
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Publication number: 20200081109Abstract: 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: ApplicationFiled: March 23, 2018Publication date: March 12, 2020Applicant: NEC CorporationInventors: Osamu HOSHUYAMA, Kentarou KUDOU, Shohei IKEDA
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Publication number: 20190187274Abstract: 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: ApplicationFiled: May 15, 2017Publication date: June 20, 2019Applicant: NEC CorporationInventors: Nobuharu KAMI, Kentarou KUDOU, Shohei IKEDA
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Patent number: 9124470Abstract: 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: GrantFiled: February 13, 2013Date of Patent: September 1, 2015Assignee: NEC CORPORATIONInventors: Hiroyuki Ishii, Shohei Ikeda
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Publication number: 20140348219Abstract: 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: ApplicationFiled: February 13, 2013Publication date: November 27, 2014Applicant: NEC CorporationInventors: Hiroyuki Ishii, Shohei Ikeda
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Patent number: 7732532Abstract: 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: GrantFiled: March 15, 2005Date of Patent: June 8, 2010Assignee: Prime Polymer Co., Ltd.Inventors: Ryoichi Tsunori, Yasuhiko Otsuki, Tsutomu Onodera, Shohei Ikeda, Masayuki Shinohara
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Publication number: 20070208138Abstract: 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: ApplicationFiled: March 15, 2005Publication date: September 6, 2007Applicant: Prime Polymer Co., Ltd.Inventors: Ryoichi Tsunori, Yasuhiko Otsuki, Tsutomu Onodera, Shohei Ikeda, Masayuki Shinohara