Patents by Inventor Minoru IWANAGA
Minoru IWANAGA 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).
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Publication number: 20240421845Abstract: A radio frequency module includes a substrate having a mounting surface, components for transmission and a component for transmission and reception that are disposed on the mounting surface, acoustic wave filters disposed between each of the components for transmission and the component for transmission and reception, and shield electrodes each formed on a corresponding one of side surfaces of the acoustic wave filters.Type: ApplicationFiled: June 12, 2024Publication date: December 19, 2024Inventors: Shogo YANASE, Nanami YUMURA, Masaki TADA, Yuusuke KISHI, Ryoya SHIOMI, Takanori UEJIMA, Naru MORITO, Masaki KIMURA, Hiroyuki NAGAMORI, Mizuki KINOSHITA, Minoru IWANAGA, Takuma KUROYANAGI
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Publication number: 20240283469Abstract: A high frequency circuit includes a filter that has a passband including a reception band of a first band that can be used in a first region and a second region, a filter that has a passband including a reception band of a second band that can be used in the first region, a filter 330 that has a passband including the reception band of the first band, a filter that has a passband including a reception band of a third band that can be used in the second region, and a switch including a terminal connected to an antenna connection terminal, a terminal connected to an antenna connection terminal, a terminal connected to a plurality of filters including the filters and, and a terminal connected to a plurality of filters including the filters.Type: ApplicationFiled: November 13, 2023Publication date: August 22, 2024Inventor: Minoru IWANAGA
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Publication number: 20240113848Abstract: In a high frequency module, a plurality of filters is connected to an antenna terminal with a switch interposed. The plurality of filters includes a first filter that has a pass band including a frequency band of a first communication band and a second filter that has a pass band including a frequency band of a second communication band that is capable of simultaneous communication with the first communication band. A first electronic component having the first filter and a second antenna end resonator of the second filter is disposed on a first principal surface of the mounting substrate. A second electronic component having at least one second acoustic wave resonator other than a second antenna end resonator of the second filter is disposed on the first principal surface of the mounting substrate.Type: ApplicationFiled: December 13, 2023Publication date: April 4, 2024Inventors: Takanori ITO, Terumichi KITA, Shinichiro TAKAYANAGI, Yuudai TANOUE, Minoru IWANAGA
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Publication number: 20230291427Abstract: A high-frequency module includes a mounting substrate, a first filter, a second filter, and a third filter. The mounting substrate has a first main surface and a second main surface opposite to each other. Simultaneous communication is enabled for the first filter and the second filter, and the third filter is not used in the simultaneous communication using the first filter and the second filter. The first filter, the second filter, and the third filter are mounted on the first main surface of the mounting substrate. A first substrate of the first filter, a second substrate of the second filter, and a third substrate of the third filter are common to each other. The third filter is disposed between the first filter and the second filter in plan view from a thickness direction of the mounting substrate.Type: ApplicationFiled: May 17, 2023Publication date: September 14, 2023Inventors: Yuudai TANOUE, Minoru IWANAGA, Takashi WATANABE
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Patent number: 10931261Abstract: A filter includes a resonant circuit defining at least a portion of a signal path connected between a first terminal and a second terminal, an elastic wave resonator including one end that is grounded, a first inductor including one end connected to one end of the resonant circuit and another end connected to another end of the elastic wave resonator, and a second inductor including one end connected to another end of the resonant circuit and another end connected to the other end of the elastic wave resonator. The resonant circuit is an LC series resonant circuit in which a third inductor and first and second capacitors are connected in series with each other.Type: GrantFiled: May 16, 2019Date of Patent: February 23, 2021Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Masanori Kato, Minoru Iwanaga, Hiroshi Matsubara
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Publication number: 20200007106Abstract: A filter includes a resonant circuit defining at least a portion of a signal path connected between a first terminal and a second terminal, an elastic wave resonator including one end that is grounded, a first inductor including one end connected to one end of the resonant circuit and another end connected to another end of the elastic wave resonator, and a second inductor including one end connected to another end of the resonant circuit and another end connected to the other end of the elastic wave resonator. The resonant circuit is an LC series resonant circuit in which a third inductor and first and second capacitors are connected in series with each other.Type: ApplicationFiled: May 16, 2019Publication date: January 2, 2020Inventors: Masanori KATO, Minoru IWANAGA, Hiroshi MATSUBARA
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Patent number: 10243538Abstract: A high-frequency filter coupled between an input-output terminal and another input-output terminal includes series arm resonators, parallel arm resonators, and an inductor defining an LC resonant circuit. Frequencies at a first attenuation pole defined by resonant frequencies or anti-resonant frequencies of the series arm resonators and the parallel arm resonators and a frequency at a second attenuation pole defined by a resonant frequency of the LC resonant circuit are included in one stop band of the high-frequency filter, and the frequencies at the first attenuation pole are located closer than the frequency at the second attenuation pole to a pass band of the high-frequency filter.Type: GrantFiled: July 11, 2018Date of Patent: March 26, 2019Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Masanori Kato, Syunsuke Kido, Minoru Iwanaga, Hiroshi Matsubara
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Publication number: 20190028085Abstract: A high-frequency filter coupled between an input-output terminal and another input-output terminal includes series arm resonators, parallel arm resonators, and an inductor defining an LC resonant circuit. Frequencies at a first attenuation pole defined by resonant frequencies or anti-resonant frequencies of the series arm resonators and the parallel arm resonators and a frequency at a second attenuation pole defined by a resonant frequency of the LC resonant circuit are included in one stop band of the high-frequency filter, and the frequencies at the first attenuation pole are located closer than the frequency at the second attenuation pole to a pass band of the high-frequency filter.Type: ApplicationFiled: July 11, 2018Publication date: January 24, 2019Inventors: Masanori KATO, Syunsuke KIDO, Minoru IWANAGA, Hiroshi MATSUBARA
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Patent number: 9774312Abstract: A high pass filter includes a first end connected to a first terminal and is a filter that transmits a signal in a first frequency band. A second terminal is connected to a second end of the high pass filter. A first switch includes a first end connected to the second end of the high pass filter. A third terminal is connected to a second end of the first switch. A low pass filter includes a first end connected to the first terminal and is a filter that transmits a signal in a second frequency band lower than the first frequency band. A fourth terminal is connected to a second end of the low pass filter. A second switch includes a first end connected to the second end of the low pass filter. A fifth terminal is connected to the second end of the second switch.Type: GrantFiled: September 20, 2016Date of Patent: September 26, 2017Assignee: MURATA MANUFACTURING CO., LTD.Inventor: Minoru Iwanaga
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Patent number: 9571145Abstract: A high frequency circuit module includes a variable inductance circuit portion and a reactance circuit portion. The variable inductance circuit portion is connected between an antenna port and ground. The variable reactance circuit is connected between the antenna port and a front-end port. The variable inductance circuit portion includes a first inductor, a second inductor, and a switch. The first inductor is connected between the antenna port and the ground. The second inductor and the switch are connected in series, and this series circuit is connected in parallel to the first inductor.Type: GrantFiled: September 15, 2014Date of Patent: February 14, 2017Assignee: Murata Manufacturing Co., Ltd.Inventors: Shoji Nagumo, Tetsuro Harada, Minoru Iwanaga, Tomohiro Nagai
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Publication number: 20170012599Abstract: A high pass filter includes a first end connected to a first terminal and is a filter that transmits a signal in a first frequency band. A second terminal is connected to a second end of the high pass filter. A first switch includes a first end connected to the second end of the high pass filter. A third terminal is connected to a second end of the first switch. A low pass filter includes a first end connected to the first terminal and is a filter that transmits a signal in a second frequency band lower than the first frequency band. A fourth terminal is connected to a second end of the low pass filter. A second switch includes a first end connected to the second end of the low pass filter. A fifth terminal is connected to the second end of the second switch.Type: ApplicationFiled: September 20, 2016Publication date: January 12, 2017Inventor: Minoru IWANAGA
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Patent number: 9391657Abstract: An antenna matching device includes an antenna terminal connected to an antenna and an RF terminal connected to an RF circuit. The antenna terminal and the RF terminal are connected to each other through a first transmission path only via an inductor. The antenna terminal and the RF terminal are connected to each other through a second transmission path only via an SPST switch. By switching between the open state and the closed state of the switch in accordance with the frequency of an RF signal, the first transmission channel or the second transmission channel is selected.Type: GrantFiled: December 4, 2014Date of Patent: July 12, 2016Assignee: Murata Manufacturing Co., Ltd.Inventor: Minoru Iwanaga
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Patent number: 9236657Abstract: A low-frequency radiating element and a high-frequency radiating element are configured so as to respectively operate in a relatively low frequency band and a relatively high frequency band that are non-contiguous with each other. A matching circuit is inserted between a transmission/reception circuit and a branching point. A high-frequency variable reactance circuit is inserted between the branching point and the high-frequency radiating element. A low-frequency variable reactance circuit is inserted between the branching point and the low-frequency radiating element. The high-frequency variable reactance circuit and the low-frequency variable reactance circuit are configured such that their reactances can be adjusted independently of each other.Type: GrantFiled: January 8, 2014Date of Patent: January 12, 2016Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Shoji Nagumo, Minoru Iwanaga, Masahi Nakazato, Tomohiro Nagai
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Publication number: 20150118984Abstract: A high frequency circuit module includes a variable inductance circuit portion and a reactance circuit portion. The variable inductance circuit portion is connected between an antenna port and ground. The variable reactance circuit is connected between the antenna port and a front-end port. The variable inductance circuit portion includes a first inductor, a second inductor, and a switch. The first inductor is connected between the antenna port and the ground. The second inductor and the switch are connected in series, and this series circuit is connected in parallel to the first inductor.Type: ApplicationFiled: September 15, 2014Publication date: April 30, 2015Inventors: Shoji NAGUMO, Tetsuro HARADA, Minoru IWANAGA, Tomohiro NAGAI
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Publication number: 20150087254Abstract: An antenna matching device includes an antenna terminal connected to an antenna and an RF terminal connected to an RF circuit. The antenna terminal and the RF terminal are connected to each other through a first transmission path only via an inductor. The antenna terminal and the RF terminal are connected to each other through a second transmission path only via an SPST switch. By switching between the open state and the closed state of the switch in accordance with the frequency of an RF signal, the first transmission channel or the second transmission channel is selected.Type: ApplicationFiled: December 4, 2014Publication date: March 26, 2015Inventor: Minoru IWANAGA
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Publication number: 20140198009Abstract: A low-frequency radiating element and a high-frequency radiating element are configured so as to respectively operate in a relatively low frequency band and a relatively high frequency band that are non-contiguous with each other. A matching circuit is inserted between a transmission/reception circuit and a branching point. A high-frequency variable reactance circuit is inserted between the branching point and the high-frequency radiating element. A low-frequency variable reactance circuit is inserted between the branching point and the low-frequency radiating element. The high-frequency variable reactance circuit and the low-frequency variable reactance circuit are configured such that their reactances can be adjusted independently of each other.Type: ApplicationFiled: January 8, 2014Publication date: July 17, 2014Applicant: MURATA MANUFACTURING CO., LTD.Inventors: Shoji NAGUMO, Minoru IWANAGA, Masahi NAKAZATO, Tomohiro NAGAI