Patents by Inventor Morio TAKEUCHI

Morio TAKEUCHI 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: 11152898
    Abstract: A radio-frequency circuit includes a first switch which includes a common terminal, a first selection terminal, and a second selection terminal, and switches between connecting the common terminal and the first selection terminal and connecting the common terminal and the second selection terminal; a first low-noise amplifier including an input terminal connected to the first selection terminal, and a second low-noise amplifier including an input terminal connected to the second selection terminal. The frequency band in which the first low-noise amplifier amplifies a radio-frequency signal by at least a predetermined gain includes the frequency band in which the second low-noise amplifier amplifies a radio-frequency signal by at least a predetermined gain.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: October 19, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Morio Takeuchi, Syunsuke Kido
  • Publication number: 20210314010
    Abstract: A radio-frequency module includes a switch performing switching of the connection between a common terminal and a selection terminal, a reception filter having a reception band in a band A as a passband, a transmission filter that has a transmission band in a band B as a passband and has an output terminal connected to the selection terminal, a filter that has the transmission band in a band B as an attenuation band and has an input terminal connected to the selection terminal, a reception path which connects the selection terminal and an input terminal of the reception filter and on which the filter is disposed, a bypass path which connects the selection terminal and the input terminal of the reception filter and on which no filter is disposed, and a transmission path which connects the selection terminal and a transmission terminal and on which the transmission filter is disposed.
    Type: Application
    Filed: June 18, 2021
    Publication date: October 7, 2021
    Inventors: Motoji TSUDA, Yukiya YAMAGUCHI, Sho MATSUMOTO, Hiroyuki KANI, Atsushi HORITA, Morio TAKEUCHI, Yusuke NANIWA, Jin YOKOYAMA
  • Publication number: 20210258028
    Abstract: A radio frequency circuit includes an amplifier capable of amplifying a first radio frequency signal and a second radio frequency signal that has a frequency different from a frequency of the first radio frequency signal. Here, the amplifier uses a first power-supply voltage to amplify one of the first radio frequency signal and the second radio frequency signal and uses a second power-supply voltage to amplify both the first radio frequency signal and the second radio frequency signal together. A value of the second power-supply voltage is greater than a value of the first power-supply voltage.
    Type: Application
    Filed: February 10, 2021
    Publication date: August 19, 2021
    Inventors: Satoshi TANAKA, Hirotsugu MORI, Hidenori OBIYA, Morio TAKEUCHI
  • Publication number: 20210203366
    Abstract: A radio frequency module includes a module board including a first principal surface and a second principal surface on opposite sides thereof; a transmission power amplifier; a control circuit configured to control the transmission power amplifier; a first transmission filter and a second transmission filter; and a first switch configured to switch connection of an output terminal of the transmission power amplifier between the first transmission filter and the second transmission filter. The control circuit is disposed on the first principal surface, and the first switch is disposed on the second principal surface.
    Type: Application
    Filed: March 11, 2021
    Publication date: July 1, 2021
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Takayuki SHINOZAKI, Yukiya YAMAGUCHI, Morio TAKEUCHI, Yoichi SAWADA
  • Publication number: 20210194518
    Abstract: In a radio frequency module, the first inductor is disposed on the first principal surface of the mounting board and located on the first reception path through which a first reception signal of a first frequency passes, on an input side of the first low noise amplifier. The second inductor is disposed on the first principal surface of the mounting board and located on the second reception path through which a second reception signal of a second frequency lower than the first frequency passes, on an input side of the second low noise amplifier. The radio frequency component is disposed between the first inductor and the second inductor. A distance between the first inductor and the shielding layer is greater than a distance between the second inductor and the shielding layer. The first inductor overlaps the first low noise amplifier in a thickness direction of the mounting board.
    Type: Application
    Filed: December 21, 2020
    Publication date: June 24, 2021
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Takanori ITO, Morio TAKEUCHI, Yukiya YAMAGUCHI
  • Publication number: 20210175911
    Abstract: A radio frequency module includes: a module board including a first principal surface and a second principal surface on opposite sides of the module board; a power amplifier configured to amplify a radio frequency transmission signal that has been input through a transmission input terminal; a low noise amplifier configured to amplify a radio frequency reception signal; a switch disposed on the second principal surface and connected between the transmission input terminal and the power amplifier; and an inductor of a matching circuit connected to an input terminal of the low noise amplifier. In the radio frequency module, at least one of the low noise amplifier or the inductor is disposed on the first principal surface.
    Type: Application
    Filed: December 3, 2020
    Publication date: June 10, 2021
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Morio TAKEUCHI, Motoji TSUDA
  • Patent number: 10979087
    Abstract: A radio frequency module includes a module board including a first principal surface and a second principal surface on opposite sides thereof; a transmission power amplifier; a control circuit configured to control the transmission power amplifier; a first transmission filter and a second transmission filter; and a first switch configured to switch connection of an output terminal of the transmission power amplifier between the first transmission filter and the second transmission filter. The control circuit is disposed on the first principal surface, and the first switch is disposed on the second principal surface.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: April 13, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Takayuki Shinozaki, Yukiya Yamaguchi, Morio Takeuchi, Yoichi Sawada
  • Publication number: 20210091801
    Abstract: A radio frequency module includes a module board including a first principal surface and a second principal surface on opposite sides thereof, a transmission power amplifier, a control circuit that controls the transmission power amplifier, and a first inductor connected to an output terminal of the transmission power amplifier. The control circuit is disposed on the first principal surface, and the first inductor is disposed on the second principal surface.
    Type: Application
    Filed: September 10, 2020
    Publication date: March 25, 2021
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Takayuki SHINOZAKI, Yukiya YAMAGUCHI, Morio TAKEUCHI, Yoichi SAWADA
  • Publication number: 20210091807
    Abstract: A radio frequency module includes a module board including a first principal surface and a second principal surface on opposite sides of the module board, a transmission power amplifier connected to a transmission path, a first circuit component connected to a reception path, and a control circuit that controls the transmission power amplifier. The control circuit is disposed on the first principal surface, and the first circuit component is disposed on the second principal surface.
    Type: Application
    Filed: September 16, 2020
    Publication date: March 25, 2021
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Takayuki SHINOZAKI, Yukiya YAMAGUCHI, Morio TAKEUCHI, Yoichi SAWADA
  • Publication number: 20210091803
    Abstract: A radio frequency module includes: a switch that includes: a common terminal connected to a first common transmission path; a first selection terminal connected to a first transmission path; and a second selection terminal connected to a second transmission path, and switches between connecting the common terminal to the first selection terminal and to the second selection terminal; a transmission power amplifier disposed on the module board and on first common transmission path; and first circuit components disposed on a reception path. The first transmission path is a path through which a transmission signal of a first communication band is transferred, the second transmission path is a path through which a transmission signal of a second communication band is transferred, the switch is disposed on a first principal surface, and at least one of the first circuit components is disposed on a second principal surface.
    Type: Application
    Filed: September 16, 2020
    Publication date: March 25, 2021
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Morio TAKEUCHI, Yukiya YAMAGUCHI, Yoichi SAWADA
  • Publication number: 20210091796
    Abstract: A radio frequency module includes a module board including a first principal surface and a second principal surface on opposite sides thereof; a transmission power amplifier; a control circuit configured to control the transmission power amplifier; a first transmission filter and a second transmission filter; and a first switch configured to switch connection of an output terminal of the transmission power amplifier between the first transmission filter and the second transmission filter. The control circuit is disposed on the first principal surface, and the first switch is disposed on the second principal surface.
    Type: Application
    Filed: September 16, 2020
    Publication date: March 25, 2021
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Takayuki SHINOZAKI, Yukiya YAMAGUCHI, Morio TAKEUCHI, Yoichi SAWADA
  • Publication number: 20210006272
    Abstract: A radio-frequency front-end circuit includes first and second radio-frequency switches and filters. The first radio-frequency switch includes a first antenna-side terminal and a plurality of first filter-side terminals selectively coupled to the first antenna-side terminal. The second radio-frequency switch includes a second antenna-side terminal and a plurality of second filter-side terminals selectively coupled to the second antenna-side terminal. Some of the filters are multiplexer filters and each includes a common terminal. The common terminals of the filters are coupled individually to some of the first filter-side terminals of the first radio-frequency switch. The second antenna-side terminal of the second radio-frequency switch is coupled to the remaining one of the first filter-side terminals of the first radio-frequency switch.
    Type: Application
    Filed: September 23, 2020
    Publication date: January 7, 2021
    Inventor: Morio TAKEUCHI
  • Publication number: 20200382081
    Abstract: A radio-frequency circuit includes a first switch which includes a common terminal, a first selection terminal, and a second selection terminal, and switches between connecting the common terminal and the first selection terminal and connecting the common terminal and the second selection terminal; a first low-noise amplifier including an input terminal connected to the first selection terminal, and a second low-noise amplifier including an input terminal connected to the second selection terminal. The frequency band in which the first low-noise amplifier amplifies a radio-frequency signal by at least a predetermined gain includes the frequency band in which the second low-noise amplifier amplifies a radio-frequency signal by at least a predetermined gain.
    Type: Application
    Filed: May 29, 2020
    Publication date: December 3, 2020
    Inventors: Morio TAKEUCHI, Syunsuke KIDO
  • Publication number: 20200382160
    Abstract: A radio frequency circuit includes a first acoustic wave filter that is connected to a common terminal and includes a first acoustic wave resonator, a first LC filter that is connected to the common terminal via the first acoustic wave filter and includes at least one of an inductor or a capacitor, a second acoustic wave filter that is connected to the common terminal and includes a second acoustic wave resonator, and a second LC filter that is connected to the common terminal via the second acoustic wave filter and includes at least one of an inductor or a capacitor.
    Type: Application
    Filed: May 29, 2020
    Publication date: December 3, 2020
    Inventors: Morio TAKEUCHI, Syunsuke KIDO
  • Publication number: 20200382146
    Abstract: A multiplexer includes first, second, and third filters with first, second, and third frequency bands different from each other, a first connection point connected to a common terminal, a second connection point connected to one end of the first filter and one end of the second filter, a first switch that switches connection and disconnection between the first and second connection points, a reactance element whose one end is connected to a signal path connecting the second connection point and the first switch, a second switch that switches connection and disconnection between the other end of the reactance element and the first connection point, and a third switch that switches connection and disconnection between one end of the third filter and the first connection point. The first and second frequency bands are adjacent to each other among the first, second, and third frequency bands.
    Type: Application
    Filed: August 18, 2020
    Publication date: December 3, 2020
    Inventors: Yusuke NANIWA, Morio TAKEUCHI, Masakazu TANI
  • Publication number: 20200366322
    Abstract: A front-end circuit includes a primary circuit and a diversity circuit, the primary circuit includes transmission paths 51 and 52 for transmitting a signal in a band A and in a band B, respectively. Transmission and reception of a signal in the band B are performed by a TDD system in the transmission path 52. The diversity circuit includes a switch, and reception paths 53 and 54 that receive a signal in the band A and in the band B, respectively. When reception signals in the band A and in the band B are simultaneously transmitted, and when a reception signal in the band A and a transmission signal in the band B are simultaneously transmitted, the switch causes the diversity antenna and each of the reception path 53 and the reception path 54 to be in a conductive state.
    Type: Application
    Filed: May 12, 2020
    Publication date: November 19, 2020
    Inventors: Atsushi TAKADA, Morio TAKEUCHI
  • Patent number: 10756768
    Abstract: A radio-frequency front-end circuit includes first and second filters, and first and second band elimination filters. The first filter is connected between an antenna common terminal and a first input-output terminal, and has a first frequency band as a pass band. The second filter is connected between the antenna common terminal and a second input-output terminal, and has a second frequency band as a pass band. The first band elimination filter is connected between the antenna common terminal and a third input-output terminal, and has the first frequency band as a stop band. The second band elimination filter is connected in series with the first band elimination filter between the antenna common terminal and the third input-output terminal, and has the second frequency band as a stop band.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: August 25, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Daisuke Miyazaki, Morio Takeuchi
  • Patent number: 10720899
    Abstract: A radio-frequency module utilizing carrier aggregation includes a switch circuit that includes one input terminal and three or more output terminals and that simultaneously connects the input terminal and each of two or more output terminals selected from the output terminals, signal paths that propagate signals of corresponding frequency bands, band pass filters in the signal paths, and variable matching circuits in the signal paths. The circuit states of the variable matching circuits are changed in accordance with a combination of two or more signal paths simultaneously connected to the input terminal.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: July 21, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Morio Takeuchi
  • Patent number: 10547288
    Abstract: A radio frequency front-end circuit includes a multiplexer including filters with different pass bands and including a first acoustic wave filter and a first terminal of each of the filters being connected in common, a second acoustic wave filter including a pass band within the pass band of the first acoustic wave filter, and a switch including a common terminal connected to a second terminal of the first acoustic wave filter and selective terminals including a selective terminal connected to the second acoustic wave filter. Each of an acoustic wave resonator of the first acoustic wave filter located closest to the switch and an acoustic wave resonator of the second acoustic wave filter located closest to the switch, is a serial arm resonator.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: January 28, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Morio Takeuchi
  • Publication number: 20190386634
    Abstract: A composite filter device includes bandpass filters whose respective one ends are electrically connected in common. A first bandpass filter of the bandpass filters includes a first filter, a switch, a second filter, and an impedance element that is electrically connected to the switch and having an impedance value larger than the input impedance value of the second filter. The switch is configured to be switched between a first state in which the first filter and the second filter are electrically connected and a second state in which the first filter and the impedance element are electrically connected.
    Type: Application
    Filed: August 27, 2019
    Publication date: December 19, 2019
    Inventors: Junpei YASUDA, Morio TAKEUCHI