Patents by Inventor Tetsuo Taniguchi

Tetsuo Taniguchi 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: 20220131516
    Abstract: A diplexer includes a low-band band pass filter between a common input/output terminal and a low-band input/output terminal and a high-band band pass filter between the common input/output terminal and a high-band input/output terminal, wherein the low-band band pass filter includes LC resonators including a first-stage LC resonator to a final-stage LC resonator in order from the common input/output terminal toward the low-band input/output terminal, the high-band band pass filter includes LC resonators including a first-stage LC resonator to a final-stage LC resonator in order from the common input/output terminal toward the high-band input/output terminal, a matching capacitor is between the common input/output terminal and the low-band band pass filter, and the capacitance of a capacitor of the first-stage LC resonator of the low-band band pass filter is smaller than the capacitance of a capacitor of the final-stage LC resonator.
    Type: Application
    Filed: January 7, 2022
    Publication date: April 28, 2022
    Inventors: Yuutarou YAMAZAKI, Hiroto MOTOYAMA, Tetsuo TANIGUCHI, Yuji KAMINISHI
  • Patent number: 11201599
    Abstract: A band pass filter includes a first filter circuit, a second filter circuit, a first intermediate circuit, a second intermediate circuit, and a ninth capacitor. The first intermediate circuit includes a seventh inductor connected between a fifth capacitor and a sixth capacitor. The second intermediate circuit includes an eighth inductor connected between a seventh capacitor and an eighth capacitor. The ninth capacitor is connected between the first intermediate circuit and the second intermediate circuit.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: December 14, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Tetsuo Taniguchi
  • Patent number: 11108369
    Abstract: A band pass filter is provided with a first filter circuit which includes a first resonant circuit including a first inductor and a second resonant circuit including a second inductor, a second filter circuit which includes a third resonant circuit including a third inductor and a fourth resonant circuit including a fourth inductor, and a fifth resonant circuit including a fifth inductor. The fifth inductor is electromagnetically coupled to each of the first inductor, the second inductor, the third inductor, and the fourth inductor.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: August 31, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Tetsuo Taniguchi
  • Patent number: 11088669
    Abstract: In a band pass filter, a signal input into a first terminal is transmitted to a first LC resonator and a second LC resonator in this order and is then output from a second terminal. The band pass filter includes a third inductor and a third capacitor. A first end of the third inductor is electrically connected to the ground. The third capacitor is electrically connected between a second end of the third inductor and a node between the first LC resonator and the second LC resonator.
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: August 10, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Tetsuo Taniguchi
  • Publication number: 20210126609
    Abstract: A band pass filter includes a first filter circuit, a second filter circuit, a first intermediate circuit, a second intermediate circuit, and a ninth capacitor. The first intermediate circuit includes a seventh inductor connected between a fifth capacitor and a sixth capacitor. The second intermediate circuit includes an eighth inductor connected between a seventh capacitor and an eighth capacitor. The ninth capacitor is connected between the first intermediate circuit and the second intermediate circuit.
    Type: Application
    Filed: January 8, 2021
    Publication date: April 29, 2021
    Inventor: Tetsuo TANIGUCHI
  • Patent number: 10944376
    Abstract: An LC resonator includes a laminate body including dielectric layers that are laminated in a lamination direction. The LC resonator includes a first capacitor, a second capacitor, and an inductor connected between the first capacitor and the second capacitor. A first end of the inductor is isolated in a direct current from a ground node by the first capacitor. A second end of the inductor is isolated in a direct current from the ground node by the second capacitor.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: March 9, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Tetsuo Taniguchi
  • Publication number: 20210044269
    Abstract: A band pass filter is provided with a first filter circuit which includes a first resonant circuit including a first inductor and a second resonant circuit including a second inductor, a second filter circuit which includes a third resonant circuit including a third inductor and a fourth resonant circuit including a fourth inductor, and a fifth resonant circuit including a fifth inductor. The fifth inductor is electromagnetically coupled to each of the first inductor, the second inductor, the third inductor, and the fourth inductor.
    Type: Application
    Filed: July 17, 2020
    Publication date: February 11, 2021
    Inventor: Tetsuo TANIGUCHI
  • Patent number: 10911014
    Abstract: An electronic component includes a first terminal, a second terminal, a first capacitor electrode, a second capacitor electrode, and a third capacitor electrode. The third capacitor electrode is connected to the first terminal. The first capacitor electrode defines a first capacitor along with the third capacitor electrode. The second capacitor electrode defines a second capacitor along with the third capacitor electrode. The second capacitor electrode is connected to the second terminal. A plurality of dielectric layers include a connection layer where a first portion of the first terminal and a second portion of the second terminal are disposed. An inductance of a path from the second capacitor electrode to the second portion is lower than an inductance of a path from the third capacitor electrode to the first portion.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: February 2, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Tetsuo Taniguchi, Kiyohiro Kashiuchi
  • Publication number: 20200266793
    Abstract: In a band pass filter, a signal input into a first terminal is transmitted to a first LC resonator and a second LC resonator in this order and is then output from a second terminal. The band pass filter includes a third inductor and a third capacitor. A first end of the third inductor is electrically connected to the ground. The third capacitor is electrically connected between a second end of the third inductor and a node between the first LC resonator and the second LC resonator.
    Type: Application
    Filed: May 5, 2020
    Publication date: August 20, 2020
    Inventor: Tetsuo TANIGUCHI
  • Patent number: 10727806
    Abstract: A balun includes a first LC resonator, a second LC resonator, a third LC resonator, and a fourth LC resonator. The second LC resonator is magnetically coupled with the first LC resonator. The fourth LC resonator is magnetically coupled with the third LC resonator and electrically connected between a third terminal and a fourth terminal in parallel with the second LC resonator. Each of the first LC resonator and the second LC resonator has a resonant frequency that is a first resonant frequency. Each of the third LC resonator and the fourth LC resonator has a resonant frequency that is a second resonant frequency higher than the first resonant frequency.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: July 28, 2020
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Tetsuo Taniguchi
  • Patent number: 10601390
    Abstract: A small-sized balance filter includes an unbalanced terminal and two pairs of balanced terminals and has a low signal insertion loss. An unbalanced terminal, a first balanced terminal including first and second terminals, and a second balanced terminal Rx including first and second terminals are provided. An unbalanced-side inductor is provided between the unbalanced terminal and the ground, first balanced-side inductors are provided between the first and second terminals of the first balanced terminal, second balanced-side inductors are provided between the first and second terminals of the second balanced terminal, and the unbalanced-side inductor is electromagnetic-field-coupled to each of the first and second balanced-side inductors.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: March 24, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Tetsuo Taniguchi
  • Publication number: 20200044622
    Abstract: An electronic component includes a first terminal, a second terminal, a first capacitor electrode, a second capacitor electrode, and a third capacitor electrode. The third capacitor electrode is connected to the first terminal. The first capacitor electrode defines a first capacitor along with the third capacitor electrode. The second capacitor electrode defines a second capacitor along with the third capacitor electrode. The second capacitor electrode is connected to the second terminal. A plurality of dielectric layers include a connection layer where a first portion of the first terminal and a second portion of the second terminal are disposed. An inductance of a path from the second capacitor electrode to the second portion is lower than an inductance of a path from the third capacitor electrode to the first portion.
    Type: Application
    Filed: October 9, 2019
    Publication date: February 6, 2020
    Inventors: Tetsuo TANIGUCHI, Kiyohiro KASHIUCHI
  • Publication number: 20190386629
    Abstract: A balun includes a first LC resonator, a second LC resonator, a third LC resonator, and a fourth LC resonator. The second LC resonator is magnetically coupled with the first LC resonator. The fourth LC resonator is magnetically coupled with the third LC resonator and electrically connected between a third terminal and a fourth terminal in parallel with the second LC resonator. Each of the first LC resonator and the second LC resonator has a resonant frequency that is a first resonant frequency. Each of the third LC resonator and the fourth LC resonator has a resonant frequency that is a second resonant frequency higher than the first resonant frequency.
    Type: Application
    Filed: August 27, 2019
    Publication date: December 19, 2019
    Inventor: Tetsuo TANIGUCHI
  • Publication number: 20190305745
    Abstract: An LC resonator includes a laminate body including dielectric layers that are laminated in a lamination direction. The LC resonator includes a first capacitor, a second capacitor, and an inductor connected between the first capacitor and the second capacitor. A first end of the inductor is isolated in a direct current from a ground node by the first capacitor. A second end of the inductor is isolated in a direct current from the ground node by the second capacitor.
    Type: Application
    Filed: May 31, 2019
    Publication date: October 3, 2019
    Inventor: Tetsuo TANIGUCHI
  • Patent number: 10110191
    Abstract: A laminate defining a high-frequency laminated component includes a ground electrode on a bottom surface of a lowermost insulating layer. A second insulating layer includes an inner-layer ground electrode arranged over substantially the entire surface thereof. A portion from a third insulating layer to a fifth insulating layer is provided with a capacitor electrode defining a series capacitor of a ground impedance adjustment circuit and capacitor electrodes defining a first parallel capacitor and a second parallel capacitor. A sixth insulating layer has an inner-layer ground electrode provided over substantially the entire surface thereof. The inner-layer ground electrodes are arranged in electrical continuity with the ground electrode by via holes.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: October 23, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Tetsuo Taniguchi
  • Publication number: 20180234073
    Abstract: A small-sized balance filter includes an unbalanced terminal and two pairs of balanced terminals and has a low signal insertion loss. An unbalanced terminal, a first balanced terminal including first and second terminals, and a second balanced terminal Rx including first and second terminals are provided. An unbalanced-side inductor is provided between the unbalanced terminal and the ground, first balanced-side inductors are provided between the first and second terminals of the first balanced terminal, second balanced-side inductors are provided between the first and second terminals of the second balanced terminal, and the unbalanced-side inductor is electromagnetic-field-coupled to each of the first and second balanced-side inductors.
    Type: Application
    Filed: April 12, 2018
    Publication date: August 16, 2018
    Inventor: Tetsuo TANIGUCHI
  • Patent number: 9948264
    Abstract: An electronic component includes a spiral or substantially spiral first inductor extending along a stacking direction while turning around a ring-shaped or substantially ring-shaped path. The first inductor includes first inductor conductors and a first interlayer connecting conductor connected to each other. The first interlayer connecting conductor passes through some insulating layers. A second interlayer connecting conductor passes through some insulating layers, and is connected in series and is located within the ring-shaped path. A first capacitor conductor is disposed closer to one side of the stacking direction than the first inductor is. The first capacitor conductor is at least partially superposed on the ring-shaped path to define a first capacitor between the first capacitor conductor and the first inductor, and is superposed on a portion of a region surrounded by the ring-shaped path to be connected to the second interlayer connecting conductor.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: April 17, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Tetsuo Taniguchi
  • Patent number: 9843085
    Abstract: A directional coupler includes a multilayer body including a plurality of stacked dielectric layers, a main line including a first main line portion and a second main line portion which are connected in series to each other in this order and that is provided in the multilayer body, and a sub-line including a first sub-line portion and a second sub-line portion which are connected in series to each other in this order, the first sub-line portion being electromagnetically coupled to the first main line portion, the second sub-line portion being electromagnetically coupled to the second main line portion, and the sub-line being provided on one side in a stacking direction with respect to the main line in the multilayer body.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: December 12, 2017
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Keisuke Katabuchi, Tetsuo Taniguchi, Yasushi Yunoki
  • Patent number: 9722567
    Abstract: A variable-frequency resonance circuit includes first and second input/output terminals and a resonance circuit portion. The resonance circuit portion includes a first inductor and first and second LC series circuits. The resonance circuit portion is connected between a ground and a transmission line that connects the first and second input/output terminals. The first LC series circuit includes a second inductor and a variable capacitor connected in series with each other. The second LC series circuit includes a third inductor and a fixed capacitor connected in series with each other. The first and second LC series circuits are connected in parallel between the first inductor and a ground. The first and second inductors are configured such that positive-coupling mutual inductance is produced therebetween.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: August 1, 2017
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yasushi Yunoki, Tetsuo Taniguchi, Keisuke Katabuchi
  • Patent number: 9685688
    Abstract: A directional coupler includes a main line, a sub line, and a first parasitic element. The main line includes a first main line portion. The sub line includes a first sub line portion electromagnetically coupled with the first main line portion. The first parasitic element receives a first magnetic flux which is generated by the first main line portion when a current flows through the first main line portion and generates a second magnetic flux passing through the first sub line portion due to electromagnetic induction.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: June 20, 2017
    Assignee: MURATA MANUFACTURING CO., LTD
    Inventors: Keisuke Katabuchi, Tetsuo Taniguchi, Yasushi Yunoki