Patents by Inventor Satoshi Kurachi

Satoshi Kurachi 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: 20250033448
    Abstract: An inclined surface having an acute angle is formed in a vehicle downward direction on a second panel that is a fixed panel made of resin, and a weather strip attachment portion having a substantially L-shaped cross section is formed in the vehicle downward direction from a second panel lower surface of the second panel and in the direction of a first panel that is a movable panel, and a roof weather strip has an attachment base having a substantially U-shaped cross section and a hollow seal portion connected to the attachment base, and the attachment base is attached to the weather strip attachment portion.
    Type: Application
    Filed: July 8, 2024
    Publication date: January 30, 2025
    Inventors: Ayumi KURACHI, Taizo SHIBATA, Satoshi MUGISHIMA, Kazuhiko YOSHIZAWA
  • Patent number: 11664795
    Abstract: A switch circuit of an embodiment includes a radio-frequency switch and a level shifter circuit. The radio-frequency switch, which includes a first switch group and a second switch group each including a plurality of switches, switches transmission/reception of a radio-frequency signal. The level shifter circuit outputs a first signal for controlling ON/OFF of each switch of the first switch group and a second signal for controlling ON/OFF of each switch of the second switch group.
    Type: Grant
    Filed: February 11, 2022
    Date of Patent: May 30, 2023
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
    Inventor: Satoshi Kurachi
  • Publication number: 20230097937
    Abstract: A switch circuit of an embodiment includes a radio-frequency switch and a level shifter circuit. The radio-frequency switch, which includes a first switch group and a second switch group each including a plurality of switches, switches transmission/reception of a radio-frequency signal. The level shifter circuit outputs a first signal for controlling ON/OFF of each switch of the first switch group and a second signal for controlling ON/OFF of each switch of the second switch group.
    Type: Application
    Filed: February 11, 2022
    Publication date: March 30, 2023
    Inventor: Satoshi KURACHI
  • Patent number: 11595029
    Abstract: A switch circuit of an embodiment includes a high frequency switch, a first charge pump circuit, a boost signal generation circuit, and a second charge pump circuit. The high frequency switch switches transmission and reception of a high frequency signal. The first charge pump circuit generates a first voltage and a second voltage biased to the high frequency switch. When an edge of an input signal is detected, the boost signal generation circuit generates a first boost signal for temporarily increasing drive capacity of the first charge pump circuit. When the first boost signal is input, the second charge pump circuit operates to temporarily increase the drive capacity of the first charge pump circuit.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: February 28, 2023
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
    Inventor: Satoshi Kurachi
  • Publication number: 20220094264
    Abstract: A switch circuit of an embodiment includes a high frequency switch, a first charge pump circuit, a boost signal generation circuit, and a second charge pump circuit. The high frequency switch switches transmission and reception of a high frequency signal. The first charge pump circuit generates a first voltage and a second voltage biased to the high frequency switch. When an edge of an input signal is detected, the boost signal generation circuit generates a first boost signal for temporarily increasing drive capacity of the first charge pump circuit. When the first boost signal is input, the second charge pump circuit operates to temporarily increase the drive capacity of the first charge pump circuit.
    Type: Application
    Filed: February 26, 2021
    Publication date: March 24, 2022
    Inventor: Satoshi Kurachi
  • Publication number: 20120049920
    Abstract: According to one embodiment, an IQ signal generation circuit includes an RC poly-phase filter, a resistive load circuit and the transconductance amplifier. The RC poly-phase filter has first to fourth input terminals and first to fourth output terminals. The first and second input terminals receive first signals with a phase difference of 0°. The third and fourth input terminals receive second signals with a phase difference of 180°. The first to fourth output terminals output signals with phase differences of 0°, 90°, 180° and 270°. The resistive load circuit is connected between the first to fourth output terminals and a power supply terminal. The transconductance amplifier is connected between the first to fourth input terminals and a reference voltage terminal. The transconductance amplifier receives input signals, amplifies the input signals and generates the amplified signals to the first to fourth input terminals.
    Type: Application
    Filed: March 18, 2011
    Publication date: March 1, 2012
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Satoshi Kurachi