Patents by Inventor Keisuke Ishikawa

Keisuke Ishikawa 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: 20240140470
    Abstract: A control device includes: an external environment recognition unit configured to acquire recognition data of an external environment; an automatic driving control unit configured to perform automatic driving control; a storage unit configured to store target position information; and a target position detection unit configured to detect a target position. When the target position is detected, the automatic driving control unit executes first determination processing of determining whether a self-position of the moving body with respect to the target position is estimated, executes, when the self-position is estimated, second determination processing of determining whether a target not included in the target position information is present around the target position, issues, when the target is present, a notification inquiring of a user of the moving body necessity of executing the automatic driving control, and executes, when the target is not present, the automatic driving control.
    Type: Application
    Filed: October 25, 2023
    Publication date: May 2, 2024
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Keisuke OKA, Shun Iwasaki, Shota Ishikawa
  • Patent number: 11960618
    Abstract: A computer implemented method searches data. A number of processor units generates a candidate search result using an index for a data source in response to a search query by a user, wherein the candidate search result comprises files accessible by the user based on access control information in the index. The number of processor units generates a completed search result with a set of the files from the candidate search result having a confidentiality level less than or equal to a threshold confidentiality level. The number of processor units determines whether the user has access to a file in the candidate search result in which the file has the confidentiality level greater than the threshold confidentiality level for the data source. The number of processor units adds the file to the completed search result in response to the file being accessible by the user in the data source.
    Type: Grant
    Filed: September 1, 2021
    Date of Patent: April 16, 2024
    Assignee: International Business Machines Corporation
    Inventors: Tohru Hasegawa, Shunsuke Ishikawa, Yasumasa Kajinaga, Keisuke Nitta, Daiki Tsuzuku
  • Publication number: 20240044827
    Abstract: A detection device for detecting a status of a lithium-ion secondary battery includes a control module that acquires real part of AC impedance at a frequency at which the real part of the AC impedance is increased 10 times or more than the real part of the AC impedance at 1 kHz due to a skin effect, and detects deposition of lithium and/or the presence of foreign metal inside the lithium-ion secondary battery by using the acquired real part of the AC impedance.
    Type: Application
    Filed: December 28, 2021
    Publication date: February 8, 2024
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Masanori ISHIGAKI, Keisuke ISHIKAWA
  • Patent number: 11462912
    Abstract: A non-contact power transmission device is configured with which a primary circuit that supplies power and a secondary circuit that supplies the power supplied from the primary circuit to a load are coupled via a transformer, the non-contact power transmission device capable of connecting a storage battery and an application using the primary circuit and the secondary circuit.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: October 4, 2022
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Masanori Ishigaki, Shuntaro Inoue, Keisuke Ishikawa, Kenichi Takagi
  • Patent number: 11451140
    Abstract: A power supply device includes a battery circuit module group in which a plurality of battery circuit modules are connected in series via their output terminals. The power supply device further includes a control circuit configured to: output, at intervals of a certain time, a gate signal for turning on and off a first switching element and a second switching element of each battery circuit module to the battery circuit modules in the battery circuit module group; and select one of the battery circuit modules that receives an input of the gate signal to output a predetermined voltage from the power supply device.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: September 20, 2022
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Shigeaki Goto, Keisuke Ishikawa, Shuji Tomura, Naoki Yanagizawa
  • Publication number: 20210249951
    Abstract: A power supply device includes battery circuit modules 10a, 10b, 10c, . . . each having a battery B, a first switching element S1 connected in parallel to the battery B, and a second switching element S2 connected in series to the battery B between the battery B and the first switching element S1, the second switching element S2 being turned off when the first switching element S1 is turned on, a battery circuit module group 100 in which the battery circuit modules 10a, 10b, 10c, . . . are connected in series, and a control circuit 11 for outputting, at intervals of a certain time, a gate signal for turning on and off the first switching element S1 and the second switching element S2 to the battery circuit modules 10a, 10b, 10c, . . . .
    Type: Application
    Filed: April 19, 2021
    Publication date: August 12, 2021
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Shigeaki GOTO, Keisuke ISHIKAWA, Shuji TOMURA, Naoki YANAGIZAWA
  • Patent number: 11011982
    Abstract: A power supply device includes battery circuit modules each having a battery, a first switching element S1 connected in parallel to the battery, and a second switching element S2 connected in series to the battery between the battery and the first switching element S1, the second switching element S2 being turned off when the first switching element S1 is turned on, a battery circuit module group in which the battery circuit modules are connected in series, and a control circuit for outputting, at intervals of a certain time, a gate signal for turning on and off the first switching element S1 and the second switching element S2 to the battery circuit modules.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: May 18, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Shigeaki Goto, Keisuke Ishikawa, Shuji Tomura, Naoki Yanagizawa
  • Patent number: 10972006
    Abstract: A power supply device includes battery circuit modules each having a battery, a first switching element S1 connected in parallel to the battery, and a second switching element S2 connected in series to the battery between the battery and the first switching element S1, the second switching element S2 being turned off when the first switching element S1 is turned on, a battery circuit module group in which the battery circuit modules are connected in series, and a control circuit for outputting, at intervals of a certain time, a gate signal for turning on and off the first switching element S1 and the second switching element S2 to the battery circuit modules.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: April 6, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Shigeaki Goto, Keisuke Ishikawa, Shuji Tomura, Naoki Yanagizawa
  • Patent number: 10782716
    Abstract: The present disclosure intends to simplify the wiring structure of a switching circuit included in a power conversion apparatus. A feedback signal acquisitor acquires a power supply feedback signal corresponding to electric power transmitted from a power supply switching unit to a load switching unit, via coupling conductive elements, from the power supply switching unit. Alternatively, the feedback signal acquisitor acquires a load feedback signal corresponding to the electric power, via coupling conductive elements, from the load switching unit. A command signal generator generates a power supply switching command signal and a load switching command signal. A command signal transmitter transmits the power supply switching command signal to the power supply switching unit via the coupling conductive elements, and transmits the load switching command signal to the load switching unit via the coupling conductive elements.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: September 22, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Keisuke Ishikawa, Shuntaro Inoue, Masanori Ishigaki
  • Publication number: 20200212678
    Abstract: A non-contact power transmission device is configured with which a primary circuit that supplies power and a secondary circuit that supplies the power supplied from the primary circuit to a load are coupled via a transformer, the non-contact power transmission device capable of connecting a storage battery and an application using the primary circuit and the secondary circuit.
    Type: Application
    Filed: December 19, 2018
    Publication date: July 2, 2020
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Masanori ISHIGAKI, Shuntaro INOUE, Keisuke ISHIKAWA, Kenichi TAKAGI
  • Publication number: 20190310671
    Abstract: The present disclosure intends to simplify the wiring structure of a switching circuit included in a power conversion apparatus. A feedback signal acquisitor acquires a power supply feedback signal corresponding to electric power transmitted from a power supply switching unit to a load switching unit, via coupling conductive elements, from the power supply switching unit. Alternatively, the feedback signal acquisitor acquires a load feedback signal corresponding to the electric power, via coupling conductive elements, from the load switching unit. A command signal generator generates a power supply switching command signal and a load switching command signal. A command signal transmitter transmits the power supply switching command signal to the power supply switching unit via the coupling conductive elements, and transmits the load switching command signal to the load switching unit via the coupling conductive elements.
    Type: Application
    Filed: April 3, 2019
    Publication date: October 10, 2019
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Keisuke ISHIKAWA, Shuntaro INOUE, Masanori ISHIGAKI
  • Publication number: 20190267896
    Abstract: A power supply device includes battery circuit modules each having a battery, a first switching element S1 connected in parallel to the battery, and a second switching element S2 connected in series to the battery between the battery and the first switching element S1, the second switching element S2 being turned off when the first switching element S1 is turned on, a battery circuit module group in which the battery circuit modules are connected in series, and a control circuit for outputting, at intervals of a certain time, a gate signal for turning on and off the first switching element S1 and the second switching element S2 to the battery circuit modules.
    Type: Application
    Filed: October 26, 2017
    Publication date: August 29, 2019
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Shigeaki GOTO, Keisuke ISHIKAWA, Shuji TOMURA, Naoki YANAGIZAWA
  • Patent number: 9634157
    Abstract: A method for manufacturing a thin-film solar cell module includes a rear surface electrode layer deposition step for depositing a rear surface electrode layer on a substrate, an alkali metal adding step for adding an alkali metal to the rear surface electrode layer, a light absorbing layer deposition step for depositing a light absorbing layer on the rear surface electrode layer, a division groove forming step for forming a division groove that divides the light absorbing layer and exposing a front surface of the rear surface electrode layer in the division groove, an alloying step for alloying the rear surface electrode layer and the alkali metal on the front surface of the rear surface electrode layer exposed in the division groove, and a transparent conductive film deposition step for depositing a transparent conductive film on the light absorbing layer and in the division groove.
    Type: Grant
    Filed: November 22, 2012
    Date of Patent: April 25, 2017
    Assignee: Solar Frontier K.K.
    Inventors: Hiroki Sugimoto, Keisuke Ishikawa, Masashi Kondou
  • Publication number: 20140332070
    Abstract: A method for manufacturing a thin-film solar cell module includes a rear surface electrode layer deposition step for depositing a rear surface electrode layer on a substrate, an alkali metal adding step for adding an alkali metal to the rear surface electrode layer, a light absorbing layer deposition step for depositing a light absorbing layer on the rear surface electrode layer, a division groove forming step for forming a division groove that divides the light absorbing layer and exposing a front surface of the rear surface electrode layer in the division groove, an alloying step for alloying the rear surface electrode layer and the alkali metal on the front surface of the rear surface electrode layer exposed in the division groove, and a transparent conductive film deposition step for depositing a transparent conductive film on the light absorbing layer and in the division groove.
    Type: Application
    Filed: November 22, 2012
    Publication date: November 13, 2014
    Inventors: Hiroki Sugimoto, Keisuke Ishikawa, Masashi Kondou
  • Patent number: 4784827
    Abstract: A nonmagnetic steel for cryogenic use consisting essentially of, by weight, 23.0 to 30.0% of Ni, 13.0 to 16.0% of Cr, 3.0 to 7.4% of Mn, 1.5 to 3.0% of Ti, 1.0 to 3.0% of Mo, and the remainder being Fe, said steel containing not more than 0.02% of C, not more than 0.005% of P, not more than 0.005% of S, not more than 0.2% of Si and not more than 0.002% of B as trace elemental impurities. In a preferred embodiment, it further comprises not more than 0.5% by weight of Al and/or not more than 0.5% by weight of V. The steel has high strength and toughness in a cryogenic environment and excellent weldability.
    Type: Grant
    Filed: September 29, 1986
    Date of Patent: November 15, 1988
    Assignee: National Research Institute of Metals
    Inventors: Keijiro Hiraga, Keisuke Ishikawa
  • Patent number: 4697044
    Abstract: A casing for electronic devices is provided which includes a frame formed by a metal plate, a cover formed by a metal plate for covering an opening portion of the frame a shield plate for dividing a space in the frame, and a tip portion of the shield plate in contact with an inner surface of the cover. Projections are integrally formed on the cover so as to project toward a bottom plate of the frame, and the tip portion is in contact with the inner surface of the cover at portions where the projections are not formed, the cover being forcedly bent toward the frame by forming the projections on the cover to thereby contact the shield plate with the cover surely.
    Type: Grant
    Filed: August 25, 1986
    Date of Patent: September 29, 1987
    Assignee: Alps Electric Co., Ltd.
    Inventor: Keisuke Ishikawa
  • Patent number: 4649761
    Abstract: A rotary shaft holding mechanism for a rotary variable element comprises a frame for rotatably supporting a rotary shaft of a rotary variable element such as a variable capacitor, a resilient member fixedly mounted to the frame for urging the rotary shaft toward the frame, and a retainer member fixedly mounted to the frame for rotatably supporting an externally adjusting end of the rotary shaft so as to rotatably hold the rotary shaft.
    Type: Grant
    Filed: October 9, 1984
    Date of Patent: March 17, 1987
    Assignee: Alps Electric Co., Ltd.
    Inventor: Keisuke Ishikawa