Patents by Inventor Takashi Imai

Takashi Imai 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: 20240291390
    Abstract: With a control apparatus for a three-terminal static DC transformer for drive-controlling the three-terminal static DC transformer, a computing unit is provided with first, second, and third self-excited single-phase inverters so that each of voltages at their AC sides is caused to become a rectangular wave of three levels which are a positive voltage, a null voltage, and a negative voltage, wherein the rectangular wave is caused to undergo time changes so that the rectangular wave of the positive voltage is repeated in a half-cycle by being folded at the null voltage; and the computing unit drives each of the first, second, and third self-excited single-phase inverters so that a product of a length of a section in which the AC-side voltage of each of the first, second, and third self-excited single-phase inverters is not zero, and a voltage between the first, second, and third DC terminals becomes equal.
    Type: Application
    Filed: June 15, 2022
    Publication date: August 29, 2024
    Inventors: Yuichi KADO, Takashi IMAI, Takao GOTO
  • Patent number: 12057766
    Abstract: A control unit is provided with a step-down unit which causes a system voltage of each phase of a system to step down, a voltage pulse signal generation unit which generates a voltage pulse signal of each phase that was stepped down by the step-down unit, a current pulse signal generation unit which generates a current pulse signal of each phase of the system, a zero crossing point detection unit which outputs time information of a zero crossing point of the system voltage and the system current of each phase based on the voltage pulse signal and the current pulse signal of each phase of the system, and an arithmetic unit which calculates, respectively, a value of active power and a value of reactive power of AC power output by the power conditioner to the system based on the time information of the zero crossing point of the system voltage and the system current of each phase of the system provided from the zero crossing point detection unit, and thereby controls the power conditioner.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: August 6, 2024
    Assignee: IKS Co., Ltd.
    Inventors: Takamasa Yamazaki, Kouichi Hiraoka, Kazuhito Sasaki, Makoto Miyata, Takashi Imai, Hideaki Abumi, Takao Goto
  • Publication number: 20240170012
    Abstract: The magnetic tape includes a non-magnetic support; and a magnetic layer containing a ferromagnetic powder, in which, in a small-angle X-ray scattering spectrum obtained by small-angle X-ray scattering measurement of the non-magnetic support, in a region where a q-value is 0.01 to 0.10 ??1, a ratio Imax/Imin of a scattering intensity Imax at a q-value qmax of a maximal value of a scattering intensity change rate to a scattering intensity Imin at a q-value qmin of a minimal value of the scattering intensity change rate is 2.7 or more, and qmin<qmax is satisfied, and a glass transition temperature Tg of the non-magnetic support is 140° C. or higher.
    Type: Application
    Filed: April 27, 2023
    Publication date: May 23, 2024
    Applicant: FUJIFILM Corporation
    Inventors: Takashi IMAI, Yuki FUKUOKA, Takashi MATSUI, Daisuke SAWAI
  • Patent number: 11869545
    Abstract: A magnetic tape management device includes a processor. The processor acquires a temperature and humidity of an environment in which a magnetic tape is stored, derives a specific enthalpy using the temperature and the humidity, and performs management processing on the magnetic tape in accordance with the specific enthalpy.
    Type: Grant
    Filed: February 8, 2023
    Date of Patent: January 9, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Takashi Imai, Kazutoshi Katayama
  • Patent number: 11783215
    Abstract: An information processing apparatus includes: a processor configured to: when a request for recommendation information and situation information are input, identify one or more actions associated with a situation indicated by the situation information based on action history information in which a past action is associated with a situation where the past action is executed, the situation information indicating a situation of a user; for each target action among the one or more identified actions, calculate a first probability and a second probability, the first probability being a probability that each target action is included as a choice for the user, the second probability being a probability that the user selects each target action when the each target action is included as the choice; and output an action with a relatively low first probability and a relatively high second probability, as the recommendation information, among the one or more actions.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: October 10, 2023
    Assignee: FUJITSU LIMITED
    Inventor: Takashi Imai
  • Publication number: 20230290384
    Abstract: A magnetic tape management device includes a processor. The processor acquires a temperature and humidity of an environment in which a magnetic tape is stored, derives a specific enthalpy using the temperature and the humidity, and performs management processing on the magnetic tape in accordance with the specific enthalpy.
    Type: Application
    Filed: February 8, 2023
    Publication date: September 14, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Takashi IMAI, Kazutoshi KATAYAMA
  • Patent number: 11726653
    Abstract: A method for displaying aerial images includes detecting a capacitive response of a non-contact gesture made by a user proximate to a touch sensing enabled display screen, and in response to detecting the non-contact gesture, displaying one or more images in a three-dimensional (3D) space proximate to the display screen.
    Type: Grant
    Filed: December 23, 2021
    Date of Patent: August 15, 2023
    Assignee: Synaptics Incorporated
    Inventors: Tetsuo Tanemura, Xueyong Yang, Atsushi Shikata, Takashi Imai, Atsushi Maruyama
  • Publication number: 20230179083
    Abstract: A control unit is provided with a step-down unit which causes a system voltage of each phase of a system to step down, a voltage pulse signal generation unit which generates a voltage pulse signal of each phase that was stepped down by the step-down unit, a current pulse signal generation unit which generates a current pulse signal of each phase of the system, a zero crossing point detection unit which outputs time information of a zero crossing point of the system voltage and the system current of each phase based on the voltage pulse signal and the current pulse signal of each phase of the system, and an arithmetic unit which calculates, respectively, a value of active power and a value of reactive power of AC power output by the power conditioner to the system based on the time information of the zero crossing point of the system voltage and the system current of each phase of the system provided from the zero crossing point detection unit, and thereby controls the power conditioner.
    Type: Application
    Filed: March 17, 2020
    Publication date: June 8, 2023
    Inventors: Takamasa YAMAZAKI, Kouichi HIRAOKA, Kazuhito SASAKI, Makoto MIYATA, Takashi IMAI, Hideaki ABUMI, Takao GOTO
  • Patent number: 11670334
    Abstract: The magnetic recording medium includes: a non-magnetic support; and a magnetic layer including a ferromagnetic powder and a binding agent on the non-magnetic support, in which the magnetic layer further includes a compound including a polyalkyleneimine chain and a vinyl polymer chain. The composition for a magnetic recording medium includes: ferromagnetic powder; and a compound including a polyalkyleneimine chain and a vinyl polymer chain.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: June 6, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Wataru Kikuchi, Masatoshi Yumoto, Takashi Imai
  • Publication number: 20230051998
    Abstract: The magnetic tape includes a non-magnetic support, and a magnetic layer including a ferromagnetic powder. The non-magnetic support is a polyamide support, and a deformation rate ratio of a deformation rate in a width direction to a deformation rate in a longitudinal direction of the magnetic tape, (the deformation rate in the width direction/the deformation rate in the longitudinal direction), is 0.45 or less, the deformation rates each being measured after a load is applied in the longitudinal direction of the magnetic tape for 96 hours.
    Type: Application
    Filed: July 26, 2022
    Publication date: February 16, 2023
    Applicant: FUJIFILM Corporation
    Inventor: Takashi IMAI
  • Publication number: 20230038353
    Abstract: The magnetic tape includes a non-magnetic support, and a magnetic layer including a ferromagnetic powder. The non-magnetic support is a polyethylene naphthalate support, and a deformation rate ratio of a deformation rate in a width direction to a deformation rate in a longitudinal direction of the magnetic tape, (the deformation rate in the width direction/the deformation rate in the longitudinal direction), is 0.42 or less, the deformation rates each being measured after a load is applied in the longitudinal direction of the magnetic tape for 96 hours.
    Type: Application
    Filed: July 27, 2022
    Publication date: February 9, 2023
    Applicant: FUJIFILM Corporation
    Inventor: Takashi IMAI
  • Patent number: 11427692
    Abstract: A polyimide precursor solution contains resin particles and a polyimide precursor. The resin particles in the polyimide precursor solution have a volume particle size distribution with one or more peaks. The volume frequency of a peak having the highest volume frequency of the one or more peaks accounts for 90% to 100% of the total volume frequency of all peaks of the volume particle size distribution.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: August 30, 2022
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Katsumi Nukada, Tomoya Sasaki, Takashi Imai
  • Publication number: 20220113811
    Abstract: A method for displaying aerial images includes detecting a capacitive response of a non-contact gesture made by a user proximate to a touch sensing enabled display screen, and in response to detecting the non-contact gesture, displaying one or more images in a three-dimensional (3D) space proximate to the display screen.
    Type: Application
    Filed: December 23, 2021
    Publication date: April 14, 2022
    Inventors: Tetsuo Tanemura, Xueyong Yang, Atsushi Shikata, Takashi Imai, Atsushi Maruyama
  • Patent number: 11256413
    Abstract: A method for displaying aerial images includes detecting a capacitive response of a non-contact gesture made by a user proximate to a touch sensing enabled display screen, and in response to detecting the non-contact gesture, displaying one or more images in a three-dimensional (3D) space proximate to the display screen.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: February 22, 2022
    Assignee: Synaptics Incorporated
    Inventors: Tetsuo Tanemura, Xueyong Yang, Atsushi Shikata, Takashi Imai, Atsushi Maruyama
  • Patent number: 11249502
    Abstract: Provided are a power control device and control method employed therein. The power control device is provided with: a storage battery connected between the solar cell and the power conditioner; a converter, which is disposed between the storage battery and the solar cell, and which charges the storage battery with output power of the solar cell; and a control unit which controls the converter such that the converter charges the storage battery with differential power between the output power of the solar cell and the output power of the power conditioner in the cases where it is determined that the output of the solar cell will be larger than the outputtable power of the power conditioner.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: February 15, 2022
    Assignees: IKS CO., LTD., JGC CORPORATION
    Inventors: Shinji Takahashi, Go Iritani, Takashi Imai
  • Patent number: 11201550
    Abstract: A control device includes a detector which detects a voltage of each of the DC terminals in a state where a DC voltage is applied to one of the DC terminals and said one of the DC terminals is maintained at a fixed voltage; a minimum voltage terminal selection circuit which selects a low-voltage DC terminal with a lowest voltage among the DC terminals to which the DC voltage has not been applied, based on a detection result of the detector; and an arithmetic circuit which generates, in a connected bridge circuit to which the DC voltage has been applied, an AC voltage of a size that is equal to a difference between the voltage of said one of the DC terminals to which the DC voltage has been applied and the voltage of the low-voltage DC terminal selected by the minimum voltage terminal selection circuit.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: December 14, 2021
    Assignee: IKS CO., LTD.
    Inventors: Yuichi Kado, Takashi Imai
  • Publication number: 20210366513
    Abstract: The magnetic recording medium includes: a non-magnetic support; and a magnetic layer including a ferromagnetic powder and a binding agent on the non-magnetic support, in which the magnetic layer further includes a compound including a polyalkyleneimine chain and a vinyl polymer chain. The composition for a magnetic recording medium includes: ferromagnetic powder; and a compound including a polyalkyleneimine chain and a vinyl polymer chain.
    Type: Application
    Filed: August 5, 2021
    Publication date: November 25, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Wataru KIKUCHI, Masatoshi YUMOTO, Takashi IMAI
  • Patent number: 11179914
    Abstract: A polyimide laminated film includes a porous polyimide layer that has a porosity of from 30% to 90% and pores having a spherical shape and a non-porous polyimide layer that has a porosity of 5% or less.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: November 23, 2021
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Katsumi Nukada, Tomoya Sasaki, Takashi Imai
  • Patent number: 11170051
    Abstract: An apparatus generates property data with a first context relation set between text display areas contained in a display image of a first webpage, and generates, based on the property data, dialog control data with a second context relation set between pieces of text extracted from structural elements of text display areas contained in a second webpage.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: November 9, 2021
    Assignee: FUJITSU LIMITED
    Inventors: Takumi Baba, Takashi Imai, Kei Taira, Miwa Okabayashi, Tatsuro Matsumoto
  • Patent number: 11138998
    Abstract: The magnetic recording medium includes: a non-magnetic support; and a magnetic layer including a ferromagnetic powder and a binding agent on the non-magnetic support, in which the magnetic layer further includes a compound including a polyalkyleneimine chain and a vinyl polymer chain. The composition for a magnetic recording medium includes: ferromagnetic powder; and a compound including a polyalkyleneimine chain and a vinyl polymer chain.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: October 5, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Wataru Kikuchi, Masatoshi Yumoto, Takashi Imai