Patents by Inventor Kei Ito

Kei Ito 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: 12445153
    Abstract: The present invention allows a gain control to be appropriately effected even when a frame including no preamble signal block is used for wireless communications. The following processes are effected in a transmission power control unit 106 of a transmission unit. Specifically, an automatic transmission gain control unit 201 multiplies a transmission signal by a gain value that is the difference between the power of a signal loop-backed from a power amplifier 109 and the power of the transmission signal. A fixed transmission gain multiplying unit 202 multiplies the transmission signal by a predetermined gain value or by the gain value used in the automatic transmission gain control unit 201 during the preceding frame.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: October 14, 2025
    Assignee: KOKUSAI DENKI Electric Inc.
    Inventors: Kei Ito, Tatsuhiro Nakada
  • Patent number: 12246335
    Abstract: A paint mist collection device includes: a housing configured such that an air flow containing paint mist discharged form a painting chamber flows into the housing; a collection filter disposed in the housing to collect the paint mist and configured to be taken out of the housing to be replaced; and a spacer member. The spacer member is held in a clearance between an in-flow opening portion of the collection filter and the inner surface of the housing.
    Type: Grant
    Filed: July 8, 2022
    Date of Patent: March 11, 2025
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Motoya Kobayashi, Kei Ito, Daiyu Kato, Suzuka Onoda
  • Publication number: 20230322842
    Abstract: The purpose of the present invention is to provide a stable composition comprising a nucleic acid oligomer having a phosphorothioate bond, and a process for preparing the same composition, and a process for preparing the nucleic acid oligomer efficiently from the composition. The present invention provides a composition comprising a nucleic acid oligomer having a phosphorothioate bond represented by formula (1) (wherein the symbols are defined in the specification), an alkylammonium salt, a water-soluble organic solvent, water, and an additive including at least one compound described in the specification. The present invention provides also a modified nucleic acid oligomer.
    Type: Application
    Filed: October 20, 2022
    Publication date: October 12, 2023
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Yuya MORIYAMA, Kei ITO
  • Publication number: 20230238989
    Abstract: The present invention allows a gain control to be appropriately effected even when a frame including no preamble signal block is used for wireless communications. The following processes are effected in a transmission power control unit 106 of a transmission unit. Specifically, an automatic transmission gain control unit 201 multiplies a transmission signal by a gain value that is the difference between the power of a signal loop-backed from a power amplifier 109 and the power of the transmission signal. A fixed transmission gain multiplying unit 202 multiplies the transmission signal by a predetermined gain value or by the gain value used in the automatic transmission gain control unit 201 during the preceding frame.
    Type: Application
    Filed: September 10, 2020
    Publication date: July 27, 2023
    Inventors: Kei ITO, Tatsuhiro NAKADA
  • Publication number: 20230038492
    Abstract: A paint mist collection device includes: a housing configured such that an air flow containing paint mist discharged form a painting chamber flows into the housing; a collection filter disposed in the housing to collect the paint mist and configured to be taken out of the housing to be replaced; and a spacer member. The spacer member is held in a clearance between an in-flow opening portion of the collection filter and the inner surface of the housing.
    Type: Application
    Filed: July 8, 2022
    Publication date: February 9, 2023
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Motoya KOBAYASHI, Kei ITO, Daiyu KATO, Suzuka ONODA
  • Patent number: 11271784
    Abstract: A wireless communication device includes frequency hopping means for changing a radio frequency based on a temporarily defined pattern, and a frequency offset compensation unit. The frequency offset compensation unit includes a frequency offset calculator that calculates a frequency offset amount from a received signal, a hopping frequency value converter that uses the frequency offset amount, a radio frequency from which the frequency offset amount is calculated, and a transition destination radio frequency transitioned by the frequency hopping means to calculate an estimated frequency offset value for the transition destination radio frequency, and a rotator that uses the estimated frequency offset value for the transition destination radio frequency to perform phase rotation on the received signal.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: March 8, 2022
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventor: Kei Ito
  • Publication number: 20200336345
    Abstract: A wireless communication device includes frequency hopping means for changing a radio frequency based on a temporarily defined pattern, and a frequency offset compensation unit. The frequency offset compensation unit includes a frequency offset calculator that calculates a frequency offset amount from a received signal, a hopping frequency value converter that uses the frequency offset amount, a radio frequency from which the frequency offset amount is calculated, and a transition destination radio frequency transitioned by the frequency hopping means to calculate an estimated frequency offset value for the transition destination radio frequency, and a rotator that uses the estimated frequency offset value for the transition destination radio frequency to perform phase rotation on the received signal.
    Type: Application
    Filed: February 19, 2018
    Publication date: October 22, 2020
    Inventor: Kei ITO
  • Patent number: 10587330
    Abstract: A reception device including reception antennas is provided. In the reception device, a demodulation unit is configured to calculate, for each of a plurality of antenna combinations of the reception antennas, log likelihood ratios of coded bits of error correction code obtained from reception signals of the reception antennas. A mutual information amount calculation unit is configured to calculate an average mutual information amount based on the log likelihood ratios corresponding to each of the antenna combinations. An antenna combination selection unit is configured to output determination information for specifying one of the antenna combinations for which the average mutual information amount is the maximum. A signal selection unit is configured to select the log likelihood ratios corresponding to the specified antenna combination based on the determination information, and a decoding unit is configured to decodes the selected log likelihood ratios.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: March 10, 2020
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Daiki Hoshi, Tatsuhiro Nakada, Kei Ito, Hiroki Kato
  • Patent number: 10565636
    Abstract: According to one embodiment, an electronic apparatus includes a memory and a processor. The processor is coupled to the memory, and is configured to: receive first information including information indicative of a usage state of a device; detect a sign of mechanical failure of the device by analyzing the first information; acquire second information associated with a replacement product for the device of which the sign of mechanical failure is detected, the second information including information of at least one of an identical product and an alternative product to the device; and output the second information as information associated with the device of which the sign of mechanical failure is detected.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: February 18, 2020
    Assignee: Toshiba Client Solutions CO., LTD.
    Inventors: Kei Ito, Kouetsu Wada
  • Publication number: 20200036432
    Abstract: A reception device including reception antennas is provided. In the reception device, a demodulation unit is configured to calculate, for each of a plurality of antenna combinations of the reception antennas, log likelihood ratios of coded bits of error correction code obtained from reception signals of the reception antennas. A mutual information amount calculation unit is configured to calculate an average mutual information amount based on the log likelihood ratios corresponding to each of the antenna combinations. An antenna combination selection unit is configured to output determination information for specifying one of the antenna combinations for which the average mutual information amount is the maximum. A signal selection unit is configured to select the log likelihood ratios corresponding to the specified antenna combination based on the determination information, and a decoding unit is configured to decodes the selected log likelihood ratios.
    Type: Application
    Filed: February 21, 2018
    Publication date: January 30, 2020
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: DAIKI HOSHI, TATSUHIRO NAKADA, KEI ITO, HIROKI KATO
  • Patent number: D1065842
    Type: Grant
    Filed: March 17, 2023
    Date of Patent: March 11, 2025
    Assignee: MTG Co., Ltd.
    Inventor: Kei Ito
  • Patent number: D1077486
    Type: Grant
    Filed: June 16, 2023
    Date of Patent: June 3, 2025
    Assignee: MTG CO., LTD.
    Inventor: Kei Ito
  • Patent number: D1077488
    Type: Grant
    Filed: June 12, 2023
    Date of Patent: June 3, 2025
    Assignee: MTG CO., LTD.
    Inventor: Kei Ito
  • Patent number: D1087373
    Type: Grant
    Filed: December 21, 2023
    Date of Patent: August 5, 2025
    Assignee: MTG CO., LTD.
    Inventors: Kei Ito, Takayuki Nakagawa
  • Patent number: D1102022
    Type: Grant
    Filed: September 25, 2024
    Date of Patent: November 11, 2025
    Assignee: MTG CO., LTD.
    Inventor: Kei Ito
  • Patent number: D1102663
    Type: Grant
    Filed: September 25, 2024
    Date of Patent: November 18, 2025
    Assignee: MTG CO., LTD.
    Inventor: Kei Ito
  • Patent number: D1117269
    Type: Grant
    Filed: October 2, 2024
    Date of Patent: March 10, 2026
    Assignee: ASAHI INTECC CO., LTD.
    Inventors: Kei Ito, Shumpei Yoshitake, Yukari Shibayama, Yuki Yoshioka, Tetsuya Tsukamoto
  • Patent number: D1122626
    Type: Grant
    Filed: November 27, 2023
    Date of Patent: April 21, 2026
    Assignee: MTG CO., LTD.
    Inventor: Kei Ito
  • Patent number: D1122627
    Type: Grant
    Filed: September 25, 2024
    Date of Patent: April 21, 2026
    Assignee: MTG CO., LTD.
    Inventor: Kei Ito
  • Patent number: D1135408
    Type: Grant
    Filed: July 25, 2023
    Date of Patent: July 21, 2026
    Assignee: MTG CO., LTD.
    Inventor: Kei Ito