Patents by Inventor Norizumi MOTOOKA

Norizumi MOTOOKA 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: 20240118434
    Abstract: A positioning apparatus (100) detects pseudo ranges and carrier phase integrated values from ranging signals (L1C/A) for which augmentation information ([LC/A]) is provided, detects pseudo ranges and carrier phase integrated values from ranging signals (B1C) for which augmentation information is not provided, acquires correction data ([LC/A]) for the ranging signals generated from the augmentation information, corrects the pseudo ranges and the carrier phase integrated values of the ranging signals (L1C/A) with the correction data ([LC/A]), generates a first observation equation using the corrected pseudo ranges and carrier phase integrated values of the ranging signals (L1C/A), generates a second observation equation using a time difference value between the pseudo ranges and a time difference value between the carrier phase integrated values of the ranging signals (B1C), and performs positioning by executing a filter operation using the first observation equation and the second observation equation.
    Type: Application
    Filed: October 4, 2021
    Publication date: April 11, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventors: Norizumi MOTOOKA, Takamasa KAWAGUCHI, Masayasu FUJITA, Yuki SATO
  • Patent number: 11789162
    Abstract: A first bias conversion unit converts, based on a first frequency and a second frequency, a signal bias related to carrier phase for correcting a carrier phase contained in a first ranging signal having the first frequency, to a signal bias related to carrier phase for correcting a carrier phase contained in a second ranging signal having the second frequency. A first correction unit corrects the carrier phase using the converted signal bias. A second bias conversion unit converts the signal bias related to pseudorange to the signal bias related to pseudorange by making reference to a conversion table indicating values for use in conversion of the signal bias related to pseudorange to the signal bias related to pseudorange. A second correction unit corrects a pseudorange using the converted signal bias.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: October 17, 2023
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Norizumi Motooka, Yuki Sato, Takamasa Kawaguchi, Yuichi Hagito, Masayasu Fujita
  • Publication number: 20220381924
    Abstract: A first bias conversion unit converts, based on a first frequency and a second frequency, a signal bias related to carrier phase for correcting a carrier phase contained in a first ranging signal having the first frequency, to a signal bias related to carrier phase for correcting a carrier phase contained in a second ranging signal having the second frequency. A first correction unit corrects the carrier phase using the converted signal bias. A second bias conversion unit converts the signal bias related to pseudorange to the signal bias related to pseudorange by making reference to a conversion table indicating values for use in conversion of the signal bias related to pseudorange to the signal bias related to pseudorange. A second correction unit corrects a pseudorange using the converted signal bias.
    Type: Application
    Filed: October 16, 2020
    Publication date: December 1, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Norizumi MOTOOKA, Yuki SATO, Takamasa KAWAGUCHI, Yuichi HAGITO, Masayasu FUJITA
  • Patent number: 10870502
    Abstract: A vapor jet system to continuously jet vapors while suppressing cavitation. One vapor jet system includes a liquid storage part for separately storing two or more kinds of mutually insoluble liquids; a jet orifice; and a jet control part. Jetting the vapors is from a state where pressure in the space storing the vapors in the liquid storage part is higher than the saturated vapor pressure in any of the two or more kinds of liquids. Alternatively, a vapor jet system can include a fluid storage part storing one kind of liquid and at least one kind of inactive gas having a composition different from the liquid; a similar jet orifice; and a similar jet control part. Jetting the vapors and inactive gas(es) is (are) from a state where pressure in a vapor storing space in the fluid storage part is higher than the saturated vapor pressure in the liquid.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: December 22, 2020
    Assignee: Japan Aerospace Exploration Agency
    Inventors: Junichiro Kawaguchi, Osamu Mori, Takayuki Yamamoto, Norizumi Motooka, Toshihiro Chujo
  • Publication number: 20170073089
    Abstract: A vapor jet system to continuously jet vapors while suppressing cavitation. One vapor jet system includes a liquid storage part for separately storing two or more kinds of mutually insoluble liquids; a jet orifice; and a jet control part. Jetting the vapors is from a state where pressure in the space storing the vapors in the liquid storage part is higher than the saturated vapor pressure in any of the two or more kinds of liquids. Alternatively, a vapor jet system can include a fluid storage part storing one kind of liquid and at least one kind of inactive gas having a composition different from the liquid; a similar jet orifice; and a similar jet control part. Jetting the vapors and inactive gas(es) is (are) from a state where pressure in a vapor storing space in the fluid storage part is higher than the saturated vapor pressure in the liquid.
    Type: Application
    Filed: May 11, 2015
    Publication date: March 16, 2017
    Applicant: Japan Aerospace Exploration Agency
    Inventors: Junichiro KAWAGUCHI, Osamu MORI, Takayuki YAMAMOTO, Norizumi MOTOOKA, Toshihiro CHUJO
  • Publication number: 20170036784
    Abstract: A vapor jet system includes a container for storing a sublimable solid, the container having a vapor discharge port for discharging vapor generated by sublimation of the sublimable solid; a member having an opening for jetting out the vapor to the outside of the vapor jet system; a vapor flow path between the vapor discharge port and the opening; and a filter for preventing passage of the sublimable solid and allowing the vapor to pass through, the filter being provided to the vapor flow path.
    Type: Application
    Filed: April 16, 2015
    Publication date: February 9, 2017
    Applicant: Japan Aerospace Exploration Agency
    Inventors: Junichiro KAWAGUCHI, Osamu MORI, Takayuki YAMAMOTO, Toshihiro CHUJO, Norizumi MOTOOKA