Patents by Inventor Takanori Uejima

Takanori Uejima 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: 9240383
    Abstract: A high frequency switch module includes a multilayer substrate and a switch IC. The switch IC is mounted on a top plane of the multilayer substrate. A drive power signal input port and control signal input ports are connected to direct current external input ports through direct current voltage conductors, respectively. In-layer conductors of the direct current voltage conductors are arranged so that the in-layer conductors overlap each other at least partially in a state in which the multilayer substrate is viewed along a stacking direction.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: January 19, 2016
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hisanori Murase, Takanori Uejima, Muneyoshi Yamamoto
  • Publication number: 20150341076
    Abstract: A high-frequency module is connected to a switch port and a switch IC including an antenna connection port and a plurality of switch ports. The high-frequency module includes a signal path that outputs transmitting signals having a predetermined frequency band to the switch IC, a module port connected to the signal path and to which a duplexer and a transmitter circuit are connected, and a harmonic branch circuit that is provided on the signal path and allows a harmonic of the transmitting signal to escape to ground.
    Type: Application
    Filed: August 6, 2015
    Publication date: November 26, 2015
    Inventor: Takanori UEJIMA
  • Publication number: 20150318890
    Abstract: A high-frequency switch module includes a switch IC, a phase adjustment circuit, and a filter circuit. The phase adjustment circuit, which includes an inductor and capacitors, includes a ?-type circuit in which the inductor is connected in series between an individual terminal and the filter circuit. The filter circuit is an LC parallel resonant circuit including a filter inductor and a filter capacitor. A distortion second harmonic signal from the individual terminal of the switch IC is reflected by the filter circuit through the phase adjustment circuit and returns to the switch IC through the phase adjustment circuit. This distortion second harmonic signal, whose phase is adjusted by the phase adjustment circuit, is cancelled out by a distortion second harmonic signal output to a common terminal of the switch IC.
    Type: Application
    Filed: July 10, 2015
    Publication date: November 5, 2015
    Inventor: Takanori UEJIMA
  • Patent number: 9166285
    Abstract: A high-frequency module includes a switch IC and a matching circuit. The high-frequency module includes a multilayer body. The switch IC and an inductor of the matching circuit are mounted on a top surface of the multilayer body. A top-surface land electrode on which a common terminal of the switch IC is mounted is connected to one end of a wiring conductor through a via-conductor. The other end of the wiring conductor is connected to a top-surface land electrode on which a terminal electrode at one end of the inductor is mounted, through a via-conductor. An end portion of the inductor on the side connected to the common terminal of the switch IC is disposed near the common terminal. Thus, the length of the wiring conductor is shortened and a parasitic capacitance is decreased.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: October 20, 2015
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Takanori Uejima
  • Publication number: 20150295595
    Abstract: Impedance mismatching by a matching circuit provided on a signal line which connects a first common terminal and a second common terminal is eliminated so as to significantly reduce insertion loss of a switch module. Therefore, it is possible to provide a switch module which has a simple configuration without the need for connection of a matching circuit to antenna terminals to which antennas are respectively connected, and is able to selectively connect any one of the antennas and any one of communication systems.
    Type: Application
    Filed: June 24, 2015
    Publication date: October 15, 2015
    Inventor: Takanori UEJIMA
  • Patent number: 9160397
    Abstract: A compact high-frequency module that increases isolation between a transmission-side circuit and a reception-side circuit of a duplexer includes a switch element and duplexers. The duplexers include transmission-side SAW filters and reception-side SAW filters. The transmission-side SAW filters are mounted near one edge of a multilayer body. The reception-side SAW filters are mounted near another edge opposite to the one edge of the multilayer body. The switch element is mounted at the center of the multilayer body.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: October 13, 2015
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Takanori Uejima
  • Publication number: 20150280774
    Abstract: A switching module includes a common terminal, individual terminals connected to respective corresponding signal paths, and a switch portion that selectively switches and connects the common terminal to one of the individual terminals. The switch portion includes first switches and at least one second switch, each first switch being connected to the common terminal at one end portion within the switch, the at least one second switch being connected to the common terminal at one end portion via a connection wiring electrode provided on a wiring board. This does not allow directional connection between the one end portion of the second switch and the common terminal within the switch. Thus, mutual interference between a communication signal transmitted through the first switch and a communication signal transmitted through the second switch is prevented.
    Type: Application
    Filed: June 12, 2015
    Publication date: October 1, 2015
    Inventor: Takanori UEJIMA
  • Patent number: 9112473
    Abstract: A branching circuit includes a transmission filter and a reception filter. The transmission filter is connected between a transmission signal input terminal and an antenna connection terminal. The reception filter is connected between the antenna connection terminal and a reception signal output terminal in series together with a first phase shift circuit and a second phase shift circuit. A first amplitude adjustment circuit and a second amplitude adjustment circuit are connected in series between the antenna connection terminal and the reception signal output terminal. A junction point between the first amplitude adjustment circuit and the second amplitude adjustment circuit is connected to a junction point between the first phase shift circuit and the second phase shift circuit. The first and second phase shift circuits adjust the phase of a transmission signal that leaks to the reception side and that is to be canceled out.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: August 18, 2015
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Takanori Uejima, Morio Takeuchi
  • Patent number: 9083313
    Abstract: In a substrate that improves isolation characteristics of a high-frequency-side signal path and a low-frequency-side signal path, a duplexer, and a substrate module, a package substrate includes two SAW filters mounted thereon and defines a portion of the duplexer. A substrate body includes main surfaces that oppose each other. Land electrodes are provided on one of the main surfaces and are used to connect either of the two SAW filters. Land electrodes are provided on one of the main surfaces and are used to connect a mounting substrate on which the duplexer is mounted and are respectively superposed with the land electrodes when viewed in plan from a z-axis direction. The land electrodes and the land electrodes, which are superposed with each other when viewed in plan from the z-axis direction, are electrically connected to each other.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: July 14, 2015
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Tadaji Takemura, Syuji Yamato, Takanori Uejima, Morio Takeuchi
  • Patent number: 9083394
    Abstract: A high-frequency switch module includes a switch element, high-frequency circuits, and a GND circuit. The switch element includes an antenna port, switch ports, and an FET switch. The FET switch switches connection between the switch ports and the antenna port. The high-frequency circuits connect any of the switch ports to a signal processing circuit. In the GND circuit, the switch port, which is not connected to the high-frequency circuits, is directly connected to a GND electrode.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: July 14, 2015
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Takanori Uejima, Shinya Watanabe
  • Patent number: 9084348
    Abstract: A high frequency module includes RF terminal lands at a first layer that is a surface layer of a multilayer substrate on which RF terminal electrodes of a switch IC are mounted that are arranged in a line. Each of the RF terminal lands is electrically connected to one end of a lead electrode at a second layer via a via hole. Some of the lead electrodes extend from corresponding ones of the RF terminal lands in an outward direction away from a side of the switch IC. The remaining ones of the lead electrodes extend from corresponding ones of the RF terminal lands in an inward direction that is opposite to the outward direction.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: July 14, 2015
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hisanori Murase, Takanori Uejima
  • Patent number: 9077439
    Abstract: A small high-frequency module has a structure such that a high-power signal is prevented from leaking to a switch device. On the top surface of a multilayer body, a switch device and a duplexer are mounted so as to be spaced apart from each other by a predetermined distance. An inductor and resistors connected to a circuit different from a transmission system circuit are mounted between the switch device and the duplexer. The inductor and the resistors are mounted such that external connection terminals connected to the switch device are on the switch device side and external connection terminals connected to external connection power system port electrodes of the high-frequency module are on the duplexer side.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: July 7, 2015
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Takanori Uejima
  • Patent number: 9071227
    Abstract: A high-frequency module has a structure including balanced terminals, with high design flexibility and good transmission characteristics. Wiring patterns to be connected to balanced terminals of SAW filters of SAW duplexers are located on a second layer to a sixth layer of a layered body. The characteristic impedances of first wiring patterns defining a pair of parallel or substantially parallel lines match, the characteristic impedances of second wiring patterns defining a pair of parallel or substantially parallel lines match, the characteristic impedances of third wiring patterns defining a pair of parallel or substantially parallel lines match, and the characteristic impedances of fourth wiring patterns defining a pair of parallel or substantially parallel lines match.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: June 30, 2015
    Assignee: Murata Manufacturing Co. Ltd.
    Inventor: Takanori Uejima
  • Patent number: 9065506
    Abstract: A low pass filter connected between an individual port of a switch device and a high-frequency switch module attenuates the second harmonic and the third harmonic of a transmission signal input to a first transmission signal input terminal. Further, the inductances/capacitances of inductors and capacitors defining the low pass filter are set such that the phase of a harmonic signal generated by a power amplifier is different by 180° from the phase of a harmonic signal produced as a result of the low pass filter shifting the phase of a harmonic signal generated due to distortion in a switch device, in an end portion on the first transmission signal input terminal side.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: June 23, 2015
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Takanori Uejima
  • Patent number: 9001710
    Abstract: In a high-frequency module, first, second and third duplexers are aligned and mounted on a top surface of a multilayer body. The second duplexer, the frequency band of which is spaced apart from those of the first duplexer and the third duplexer, is arranged between the first duplexer and the third duplexer, the frequency bands of which are close to each other. This causes the spacing between the first and third duplexers, the frequencies of signals transmitted and received through which are close to each other, to be increased to suppress or prevent unnecessary electromagnetic field coupling between the first and third duplexers. In addition, also with the second duplexer, the frequency band of which is spaced apart from those of the first and third duplexers and which exists between the first and third duplexers, the unnecessary electromagnetic field coupling is suppressed or prevented between the first and third duplexers.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: April 7, 2015
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Takanori Uejima
  • Publication number: 20150061406
    Abstract: A switch module includes a switch circuit, a chip device which is a coupler, a chip device that defines together with the coupler a common-terminal-side circuit, chip devices defining switching-terminal-side circuits, and a multilayer substrate. The multilayer substrate includes inner-layer ground electrodes. A first inner-layer ground electrode is closer to the chip device than a second inner-layer ground electrode and includes an opening arranged so as not to be superposed with the chip device when viewed in plan in the stacking direction of the multilayer substrate.
    Type: Application
    Filed: November 6, 2014
    Publication date: March 5, 2015
    Inventors: Atsushi ONO, Takanori UEJIMA
  • Publication number: 20140349720
    Abstract: A high frequency module is configured to be compatible with a cellular phone with a plurality of specifications without increasing the number of ports in a switching device. The high frequency module includes a switching device and a module board. The switching device includes a common port and connection switch ports. The module board includes external connection ports and a third filter circuit. An external connection port is connected to one of the connection switch ports of the switching device via a transmission line inside the module board. The third filter circuit is connected to a second external connection port and a third external connection port independently from the device connection ports of the switching device.
    Type: Application
    Filed: August 7, 2014
    Publication date: November 27, 2014
    Inventors: Takanori UEJIMA, Muneyoshi YAMAMOTO
  • Publication number: 20140339689
    Abstract: A high frequency switch module includes a multilayer substrate and a switch IC. The switch IC is mounted on a top plane of the multilayer substrate. A drive power signal input port and control signal input ports are connected to direct current external input ports through direct current voltage conductors, respectively. In-layer conductors of the direct current voltage conductors are arranged so that the in-layer conductors overlap each other at least partially in a state in which the multilayer substrate is viewed along a stacking direction.
    Type: Application
    Filed: August 1, 2014
    Publication date: November 20, 2014
    Inventors: Hisanori MURASE, Takanori UEJIMA, Muneyoshi YAMAMOTO
  • Publication number: 20140300432
    Abstract: A branching circuit includes a transmission filter and a reception filter. The transmission filter is connected between a transmission signal input terminal and an antenna connection terminal. The reception filter is connected between the antenna connection terminal and a reception signal output terminal in series together with a first phase shift circuit and a second phase shift circuit. A first amplitude adjustment circuit and a second amplitude adjustment circuit are connected in series between the antenna connection terminal and the reception signal output terminal. A junction point between the first amplitude adjustment circuit and the second amplitude adjustment circuit is connected to a junction point between the first phase shift circuit and the second phase shift circuit. The first and second phase shift circuits adjust the phase of a transmission signal that leaks to the reception side and that is to be canceled out.
    Type: Application
    Filed: June 20, 2014
    Publication date: October 9, 2014
    Inventors: Takanori UEJIMA, Morio TAKEUCHI
  • Patent number: 8831535
    Abstract: In a high frequency module, an inductor is formed with a common terminal of a switch element as a starting point so as to wind in a substantially spiral shape clockwise when viewed from an upper surface side of a laminated body, and inductors are formed with a first individual external terminal and a second individual external terminal as starting points so as to wind in a substantially spiral shape clockwise when viewed from the upper surface side of the laminated body, the first individual external terminal and the second individual external terminal defining input ends of transmission signals. Other inductors are also formed so as to wind in a substantially spiral shape clockwise when viewed from the upper surface side of the laminated body such that all the directions of magnetic fields generated by the inductors coincide with one another.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: September 9, 2014
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Takanori Uejima