Patents by Inventor Hiromi Murayama
Hiromi Murayama 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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Patent number: 11915084Abstract: An antenna device is provided as a near-field communication antenna device that is configured by arranging a plurality of loop antennas. Each loop antenna includes a plurality of parallel circuits each having a capacitor and a resistance element; and a plurality of looped conductors in a shape of a loop that is divided. The divided looped conductors are connected to each other via the parallel circuits, and the plurality of looped conductors and the plurality of parallel circuits form a loop.Type: GrantFiled: April 21, 2022Date of Patent: February 27, 2024Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Hiromi Murayama, Noboru Kato, Noriyuki Ueki, Yoichi Saito, Makoto Yasutake
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Patent number: 11714988Abstract: A wireless IC tag-attached metal medical instrument includes a metal medical instrument including a metal portion. The metal medical instrument is configured such that electric, magnetic, or electromagnetic field coupling is established between a resonant circuit and the metal portion when a wireless IC tag is fixed to the metal portion that includes the resonant circuit having an inductor with a spiral or helix shape that turns around a central axis more than one turn. In this configuration, the metal portion either emits a transmission signal with a frequency equal to a resonant frequency of an electromagnetic wave supplied from the resonant circuit or receives a reception signal having a frequency equal to the resonant frequency, and supplies the reception signal to the resonant circuit.Type: GrantFiled: December 14, 2021Date of Patent: August 1, 2023Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Kengo Matsumoto, Hiromi Murayama, Makoto Yasutake, Tsuyoshi Suesada
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Patent number: 11701200Abstract: A medical instrument is provided in which a wireless IC tag is fixed to a first or second body, such that at least part of the wireless IC tag is positioned more frontward than a front end of a first ring and a front end of a second ring and more backward than a support. A winding axis of an inductor is orthogonal to the up-down direction and intersects the front-back direction so that electric, magnetic, or electromagnetic field coupling is established between a resonant circuit and a metal medical instrument. Moreover, the metal medical instrument either emits a transmission signal, which has a frequency equal to a predetermined resonant frequency and supplied from the resonant circuit, as an electromagnetic wave, or it receives a reception signal having a frequency equal to the predetermined resonant frequency as an electromagnetic wave, and supplies the reception signal to the resonant circuit.Type: GrantFiled: December 14, 2021Date of Patent: July 18, 2023Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Hiromi Murayama, Kengo Matsumoto, Tsuyoshi Suesada, Makoto Yasutake
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Publication number: 20220269872Abstract: An RFID auxiliary antenna device is provided on an article that is adjacent to an RFID tag to be communicated or accommodates the RFID tag. The RFID auxiliary antenna device includes a conductive pattern that circles the article. A capacitance component generated between conductive patterns and an inductance component of the conductive pattern configure a resonant circuit. A resonant frequency of the resonant circuit is equal to or substantially equal to a communication frequency of the RFID tag, and the RFID auxiliary antenna device is magnetically coupled to each of the RFID tag and a reader/writer.Type: ApplicationFiled: May 12, 2022Publication date: August 25, 2022Inventors: Hiromi MURAYAMA, Noboru KATO, Yoichi SAITO, Noriyuki UEKI, Makoto YASUTAKE
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Publication number: 20220245421Abstract: An antenna device is provided as a near-field communication antenna device that is configured by arranging a plurality of loop antennas. Each loop antenna includes a plurality of parallel circuits each having a capacitor and a resistance element; and a plurality of looped conductors in a shape of a loop that is divided. The divided looped conductors are connected to each other via the parallel circuits, and the plurality of looped conductors and the plurality of parallel circuits form a loop.Type: ApplicationFiled: April 21, 2022Publication date: August 4, 2022Inventors: Hiromi MURAYAMA, Noboru KATO, Noriyuki UEKI, Yoichi SAITO, Makoto YASUTAKE
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Publication number: 20220104918Abstract: A wireless IC tag-attached metal medical instrument is provide that includes a metal medical instrument with a metal portion having a recess. The metal medical instrument is configured such that electric field coupling, magnetic field coupling, or electromagnetic field coupling is established between a resonant circuit and the metal portion of the metal medical instrument. The metal portion is configured to emit a transmission signal or receive a reception signal when a wireless IC tag is fixed to the metal portion such that at least a part of the wireless IC tag is positioned closer to a bottom of the recess than an opening of the recess.Type: ApplicationFiled: December 14, 2021Publication date: April 7, 2022Inventors: Kengo Matsumoto, Hiromi Murayama, Makoto Yasutake, Tsuyoshi Suesada
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Publication number: 20220108144Abstract: A wireless IC tag-attached metal medical instrument includes a metal medical instrument including a metal portion. The metal medical instrument is configured such that electric, magnetic, or electromagnetic field coupling is established between a resonant circuit and the metal portion when a wireless IC tag is fixed to the metal portion that includes the resonant circuit having an inductor with a spiral or helix shape that turns around a central axis more than one turn. In this configuration, the metal portion either emits a transmission signal with a frequency equal to a resonant frequency of an electromagnetic wave supplied from the resonant circuit or receives a reception signal having a frequency equal to the resonant frequency, and supplies the reception signal to the resonant circuit.Type: ApplicationFiled: December 14, 2021Publication date: April 7, 2022Inventors: Kengo Matsumoto, Hiromi Murayama, Makoto Yasutake, Tsuyoshi Suesada
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Publication number: 20220096202Abstract: A medical instrument is provided in which a wireless IC tag is fixed to a first or second body, such that at least part of the wireless IC tag is positioned more frontward than a front end of a first ring and a front end of a second ring and more backward than a support. A winding axis of an inductor is orthogonal to the up-down direction and intersects the front-back direction so that electric, magnetic, or electromagnetic field coupling is established between a resonant circuit and a metal medical instrument. Moreover, the metal medical instrument either emits a transmission signal, which has a frequency equal to a predetermined resonant frequency and supplied from the resonant circuit, as an electromagnetic wave, or it receives a reception signal having a frequency equal to the predetermined resonant frequency as an electromagnetic wave, and supplies the reception signal to the resonant circuit.Type: ApplicationFiled: December 14, 2021Publication date: March 31, 2022Inventors: Hiromi Murayama, Kengo Matsumoto, Tsuyoshi Suesada, Makoto Yasutake
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Patent number: 10305531Abstract: A HF-band wireless communication device includes a wireless IC configured to process a radio signal, a first substrate including a first inductor pattern coupled to the wireless IC, and a second substrate which includes a coil-shaped second inductor pattern coupled in series to the first inductor pattern. An L value of the first inductor pattern is greater than an L value of the second inductor pattern, and the L value of the first inductor pattern is dominant in a resonant frequency of a resonance circuit including the first and second inductor patterns. A winding diameter of the second inductor pattern is greater than a winding diameter of the first inductor pattern, and the second inductor pattern defines a main radiating element.Type: GrantFiled: April 12, 2017Date of Patent: May 28, 2019Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Hiromi Murayama, Yuya Dokai
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Patent number: 10170835Abstract: A wireless communication device includes a lower metal housing as a planar conductor including an opening and a planar coil antenna arranged so as to oppose the opening and including a coil pattern and a coil opening. A linear strip pattern which includes a plurality of linear strip portions parallel or substantially parallel with one another and a portion of which is connected to the lower metal housing around the opening is provided in the opening to achieve sufficient communication characteristics and prevent an increase in an opening area of the opening.Type: GrantFiled: July 30, 2015Date of Patent: January 1, 2019Assignee: MURATA MANUFACTURING CO., LTD.Inventor: Hiromi Murayama
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Patent number: 10013650Abstract: A wireless communication module and a wireless communication device that are less likely to become detached even when attached to a flexible base substrate and have a reduced height includes a flexible multilayer substrate including a plurality of stacked flexible base materials and a cavity provided therein, a wireless IC chip arranged in the cavity, and a sealant filled in the cavity so as to cover the wireless IC chip. The sealant is a material that is harder than the flexible base materials. The flexible multilayer substrate includes a loop-shaped electrode defined by coil patterns. The loop-shaped electrode is electrically connected to the wireless IC chip.Type: GrantFiled: August 30, 2012Date of Patent: July 3, 2018Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Hiromi Murayama, Noboru Kato
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Patent number: 9947991Abstract: A radio communication device includes a body structural material such as a metal casing, a planar coil antenna which is disposed inside the body structural material so as to face the body structural material and includes a coil pattern and a coil opening, and a first slit pattern which is provided in the body structural material, intersects the coil pattern at at least two locations on the coil pattern in a plan view, and is not connected to an edge portion of the body structural material. Thus, mechanical strength is ensured, and predetermined communication performance is ensured.Type: GrantFiled: October 26, 2015Date of Patent: April 17, 2018Assignee: Murata Manufacturing Co., Ltd.Inventors: Hiromi Murayama, Shinichi Nakano
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Publication number: 20170220920Abstract: A HF-band wireless communication device includes a wireless IC configured to process a radio signal, a first substrate including a first inductor pattern coupled to the wireless IC, and a second substrate which includes a coil-shaped second inductor pattern coupled in series to the first inductor pattern. An L value of the first inductor pattern is greater than an L value of the second inductor pattern, and the L value of the first inductor pattern is dominant in a resonant frequency of a resonance circuit including the first and second inductor patterns. A winding diameter of the second inductor pattern is greater than a winding diameter of the first inductor pattern, and the second inductor pattern defines a main radiating element.Type: ApplicationFiled: April 12, 2017Publication date: August 3, 2017Inventors: Hiromi MURAYAMA, Yuya DOKAI
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Patent number: 9697458Abstract: An antenna module includes an antenna element including coil patterns and via conductors coupling together two adjacent two coil patterns. At least one of the coil patterns has a spiral shape, is wound three or more turns parallel or substantially parallel to an outer edge of a principal surface of a multilayer body, includes a first partial pattern including an outer end portion, a second partial pattern extending parallel or substantially parallel with the first partial pattern and being adjacent to the first partial pattern with a first gap provided therebetween, and a third partial pattern extending parallel or substantially parallel with the second partial pattern and being adjacent to the second partial pattern with a second gap provided therebetween, the second gap being smaller than the first gap.Type: GrantFiled: February 7, 2017Date of Patent: July 4, 2017Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Hiromi Murayama, Yuya Dokai, Tsuyoshi Mukai, Kazuaki Higashibata, Masato Nomura, Noboru Kato
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Publication number: 20170147917Abstract: An antenna module includes an antenna element including coil patterns and via conductors coupling together two adjacent two coil patterns. At least one of the coil patterns has a spiral shape, is wound three or more turns parallel or substantially parallel to an outer edge of a principal surface of a multilayer body, includes a first partial pattern including an outer end portion, a second partial pattern extending parallel or substantially parallel with the first partial pattern and being adjacent to the first partial pattern with a first gap provided therebetween, and a third partial pattern extending parallel or substantially parallel with the second partial pattern and being adjacent to the second partial pattern with a second gap provided therebetween, the second gap being smaller than the first gap.Type: ApplicationFiled: February 7, 2017Publication date: May 25, 2017Inventors: Hiromi MURAYAMA, Yuya DOKAI, Tsuyoshi MUKAI, Kazuaki HIGASHIBATA, Masato NOMURA, Noboru KATO
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Patent number: 9634714Abstract: A HF-band wireless communication device includes a wireless IC configured to process a radio signal, a first substrate including a first inductor pattern coupled to the wireless IC, and a second substrate which includes a coil-shaped second inductor pattern coupled in series to the first inductor pattern. An L value of the first inductor pattern is greater than an L value of the second inductor pattern, and the L value of the first inductor pattern is dominant in a resonant frequency of a resonance circuit including the first and second inductor patterns. A winding diameter of the second inductor pattern is greater than a winding diameter of the first inductor pattern, and the second inductor pattern defines a main radiating element.Type: GrantFiled: December 4, 2014Date of Patent: April 25, 2017Assignee: Murata Manufacturing Co., Ltd.Inventors: Hiromi Murayama, Yuya Dokai
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Patent number: 9607258Abstract: An antenna module includes an antenna element including coil patterns and via conductors coupling together two adjacent two coil patterns. At least one of the coil patterns has a spiral shape, is wound three or more turns parallel or substantially parallel to an outer edge of a principal surface of a multilayer body, includes a first partial pattern including an outer end portion, a second partial pattern extending parallel or substantially parallel with the first partial pattern and being adjacent to the first partial pattern with a first gap provided therebetween, and a third partial pattern extending parallel or substantially parallel with the second partial pattern and being adjacent to the second partial pattern with a second gap provided therebetween, the second gap being smaller than the first gap.Type: GrantFiled: February 24, 2015Date of Patent: March 28, 2017Assignee: Murata Manufacturing Co., Ltd.Inventors: Hiromi Murayama, Yuya Dokai, Tsuyoshi Mukai, Kazuaki Higashibata, Masato Nomura, Noboru Kato
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Patent number: 9560757Abstract: A chip component includes external terminals on a mounting surface thereof at positions that are rotationally symmetric to each other by 180 degrees with respect to a center of the mounting surface. A substrate includes first and second mounting terminals on the mounting surface of the substrate at first diagonal positions of a square indicated by a two dot chain line, and third and fourth mounting terminals on the surface of the substrate at second diagonal positions of the square. The first and fourth mounting terminals are connected by a first terminal connecting portion, and the second and third mounting terminals are connected by a second terminal connecting portion. The chip component is configured to be mounted in any of four directions obtained by rotating the chip component every 90 degrees and achieves the same electrical characteristics.Type: GrantFiled: May 21, 2015Date of Patent: January 31, 2017Assignee: Murata Manufacturing Co., Ltd.Inventors: Hiromi Murayama, Kazuaki Higashibata, Noboru Kato
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Patent number: 9501732Abstract: An antenna module includes a base including two opposing mounting surfaces, an antenna coil provided on or in the base so as to define an opening, the antenna coil having a shape that is symmetrical or substantially symmetrical with respect to a reference plane, and an IC chip and a plurality of electronic components mounted on one of the mounting surfaces and electrically coupled to the antenna coil, the IC chip and the electronic components being arranged inside the opening when viewed in plan from a normal direction of the mounting surface. At least two of the plurality of electronic components are arranged so as to be symmetrical or substantially symmetrical to each other with respect to the reference plane when viewed in plan from the normal direction.Type: GrantFiled: March 22, 2016Date of Patent: November 22, 2016Assignee: Murata Manufacturing Co., Ltd.Inventors: Hiromi Murayama, Yuya Dokai, Tsuyoshi Mukai, Kazuaki Higashibata, Masato Nomura, Noboru Kato
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Patent number: D975071Type: GrantFiled: July 14, 2020Date of Patent: January 10, 2023Assignee: Murata Manufacturing Co., Ltd.Inventors: Hiromi Murayama, Kengo Matsumoto, Hiroshi Nonogaki, Shogo Tokoi