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公开(公告)号：US20230280813A1
公开(公告)日：2023-09-07
申请号：US18315435
申请日：2023-05-10
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Tatsuya HOSOTANI , Kiyokazu YAMADA
IPC: G06F1/3231
CPC classification number: G06F1/3231
Abstract: An electronic card includes an electric storage device, a charging circuit, a wireless communication circuit, a processor, an electronic function circuit, a power management circuit, and a wakeup circuit configured to start the power management circuit upon receiving an external trigger. The power management circuit supplies, after being started by the wakeup circuit, power of the electric storage device to the processor and the electronic function circuit. The processor stores, before the start of wireless communication, an operation state or an output result of the electronic function circuit which is obtained by an operation with power of the electric storage device, and causes, after operation processing of the electronic function circuit, the wireless communication circuit to start the wireless communication.
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公开(公告)号：US20220231348A1
公开(公告)日：2022-07-21
申请号：US17716370
申请日：2022-04-08
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Tatsuya HOSOTANI , Kiyokazu YAMADA
IPC: H01M10/46 , H02J7/00 , H02J50/10 , H02J50/70 , H02H7/18 , H02H7/16 , H01G11/14 , H01M50/202 , H01M50/213 , H01M10/42
Abstract: A secondary battery, a wireless charging circuit connected to the secondary battery, an outer casing member that has an outer shape equivalent to an outer shape of a universal battery and accommodates the secondary battery and the wireless changing circuit, and a positive terminal and a negative terminal that are electrically connected to the secondary battery and are provided at positions corresponding to positions of a positive terminal and a negative terminal, respectively, of the universal battery, are provided. The wireless charging circuit includes a power reception protecting circuit that stops power reception at a rectifier circuit in a case where a received voltage exceeds a predetermined voltage range.
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公开(公告)号：US20250023392A1
公开(公告)日：2025-01-16
申请号：US18896317
申请日：2024-09-25
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Tatsuya HOSOTANI , Kiyokazu YAMADA
Abstract: A wireless power receiver device includes a receiver coil, an electronic circuit, a load circuit, a magnetic sheet, and a housing. The magnetic sheet is disposed with respect to the receiver coil. The housing, in which the receiver coil, the electronic circuit, the load circuit, and the magnetic sheet are disposed, has a three-dimensional complex structure body. The receiver coil has a shape having multiple curvatures and bending three-dimensionally along the outer surface or the inner surface of the three-dimensionally structured housing. The magnetic sheet is disposed in the inner space of the receiver coil three-dimensionally at such a position that the magnetic sheet surrounds the electronic circuit and the load circuit, so as to form the magnetic path of the main magnetic flux, which is linked with the receiver coil, with respect to a magnetic field from the outside of the three-dimensionally structured housing.
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Patent Agency Ranking
公开(公告)号：US20220231347A1
公开(公告)日：2022-07-21
申请号：US17716315
申请日：2022-04-08
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kiyokazu YAMADA , Tatsuya HOSOTANI , Tomohiro KATO , Mitsuyoshi NISHIDE
IPC: H01M10/46 , H01M10/42 , H01M10/0525 , H01M50/14 , H01M50/124 , H02J50/10 , H02J7/00
Abstract: A wireless rechargeable solid-state battery module includes a solid-state battery; an internal structure including an internal circuit electrically connected with the battery; positive and negative electrode terminals, each of which is electrically connected with the solid-state battery, is exposed on an outer surface, and is where the positive or negative electrode terminal can be mounted on an electronic circuit board; barrier layers that entirely or partially contain a conductor and isolate the battery and the internal structure from an outside air environment; and a power receiving terminal electrically connected with an external circuit, which includes a power receiving coil coupled with an external electromagnetic or magnetic field, is electrically connected with the internal circuit, and is in an outside of the barrier layers. The power receiving coil converts the external electromagnetic or magnetic field into electrical energy and supplies current to the internal circuit via the power receiving terminal.
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公开(公告)号：US20220231539A1
公开(公告)日：2022-07-21
申请号：US17716294
申请日：2022-04-08
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kiyokazu YAMADA , Tatsuya HOSOTANI , Tomohiro KATO , Mitsuyoshi NISHIDE
Abstract: A wireless rechargeable solid-state battery module includes a solid-state battery; internal structures that are provided with an internal circuit electrically connected with the solid-state battery; a barrier layer that isolates the solid-state battery from an outside air environment; and a positive electrode terminal and a negative electrode terminal each of which is electrically connected with the solid-state battery, is exposed on an outer surface, and is arranged so that the positive electrode terminal or the negative electrode terminal can be mounted on a mounting board. The internal circuit includes a wireless charging circuit that receives power from an outside via an electromagnetic field or a magnetic field produced by power transmission from the outside and controls charging to the solid-state battery.
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公开(公告)号：US20220094203A1
公开(公告)日：2022-03-24
申请号：US17539958
申请日：2021-12-01
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kiyokazu YAMADA , Osamu MIKI , Tatsuya HOSOTANI
Abstract: A power receiver includes an outer case shaped to house a secondary battery, a power reception coil member disposed in the outer case, and a circuit board disposed in the outer case. On the circuit board, a power reception circuit electrically connected to a coil conductor of the power reception coil member and a charging circuit configured to charge and discharge the secondary battery are provided. The outer case includes a first outer case member near the power reception coil member and a second outer case member forming the outer case in combination with the first outer case member. The first outer case member has, for example, a flat surface, is disposed nearer to an external power transmission coil than the second outer case member, and has a structure with which the coil conductor of the power reception coil member and the power transmission coil can face each other.
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公开(公告)号：US20210152021A1
公开(公告)日：2021-05-20
申请号：US17162610
申请日：2021-01-29
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Norikazu SAKAMOTO , Tatsuya HOSOTANI , Kiyokazu YAMADA
Abstract: An in-vivo implantable medical device includes a housing, an electronic circuit component, a power reception coil, and a magnetic material. The housing is formed of a biocompatible material and forms an internal space. The electronic circuit component is disposed in the internal space. The power reception coil is disposed in the internal space, interacts with an external electromagnetic field to form an electromagnetic resonance field to receive power. At least part of a region of the housing in which the electromagnetic resonance field is formed is formed of a biocompatible nonmetal material.
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公开(公告)号：US20210145362A1
公开(公告)日：2021-05-20
申请号：US17160064
申请日：2021-01-27
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Tatsuya HOSOTANI , Kiyokazu YAMADA
Abstract: An in-vivo implantable electronic device includes a housing, a power reception coil, and an electronic circuit. The housing is formed of a biocompatible material and forms an internal space sealed. The power reception coil is disposed in the internal space of the housing and receives power by interacting with an electromagnetic field formed by an external electric field or magnetic field, or transmits an electromagnetic wave to the outside. The electronic circuit is disposed in the internal space, is connected to the power reception coil, and performs at least processing of an electric signal. The housing includes a first member in a box shape formed of a biocompatible metal material and having an opening, a second member formed of a biocompatible nonmetal material and having a shape that closes the opening, a packing in an annular shape disposed between the first member and the second member.
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