公开(公告)号：US12183706B2

公开(公告)日：2024-12-31

申请号：US17656499

申请日：2022-03-25

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Noboru Kato

IPC: H01L23/00

Abstract: An IC module is provided that includes an IC having a terminal electrode, and a substrate having a first surface and a second surface opposite to each other and having a land formed on the first surface. Moreover, the land is connected to the terminal electrode of the IC. On the first surface of the substrate, an insulator layer that covers an area outside of a formation area of the land is formed. A difference between a thickness of the insulator layer and a thickness of the IC is smaller than a difference between the thickness of the insulator layer and a thickness of the substrate, and the thickness of the substrate is smaller than the thickness of the insulator layer.

公开(公告)号：US11929544B2

公开(公告)日：2024-03-12

申请号：US17395595

申请日：2021-08-06

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Noboru Kato ,  Yoshihiro Aoyama ,  Mikiko Saito

IPC: H01Q1/22 ,  G06K19/077 ,  H01Q5/364 ,  H01Q7/00

CPC classification number: H01Q1/2283 ,  G06K19/07773 ,  H01Q5/364 ,  H01Q7/00

Abstract: A wireless communication device is provided for transmitting and receiving a high-frequency signal having a first frequency for communication is disclosed. The device includes a loop pattern having a first electrode and a second electrode as both ends, an antenna pattern, a third electrode capacitively coupled to the first electrode, and a fourth electrode capacitively coupled to the second electrode. The device includes an RFIC having a capacitive impedance at a second frequency higher than the first frequency, and a first current path and a second current path connected in parallel with each other between the third electrode and the fourth electrode. The RFIC is included in the first current path and the second current path has an inductive impedance at a second frequency.

公开(公告)号：US11699056B2

公开(公告)日：2023-07-11

申请号：US17096327

申请日：2020-11-12

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Noriyuki Ueki ,  Noboru Kato

IPC: G06K19/07 ,  G06K19/077

CPC classification number: G06K19/071 ,  G06K19/0726 ,  G06K19/07786

Abstract: An RFID inlay includes an RFID module and an antenna. The RFID module includes an RFIC and an antenna sharing circuit provided between the RFIC and the antenna. The RFIC includes a power receiving terminal to which power induced upon receipt of an electromagnetic wave for power reception is input and a transmitting terminal from which a transmission signal for RFID is output. Moreover, the antenna receives the electromagnetic wave for power reception and generates an electromagnetic wave for RFID.

公开(公告)号：USD973039S1

公开(公告)日：2022-12-20

申请号：US29726468

申请日：2020-03-03

Applicant: Murata Manufacturing Co., Ltd.

Designer： Noboru Kato ,  Mikiko Saito

公开(公告)号：US11387032B2

公开(公告)日：2022-07-12

申请号：US16003139

申请日：2018-06-08

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Noboru Kato

IPC: H01F27/29 ,  H01F27/24 ,  H01F17/04 ,  H01F41/04 ,  H01F27/28 ,  H01F41/02 ,  H01F41/10 ,  H02M3/04 ,  H02M3/155

Abstract: A coil component manufacturing method includes embedding coils in a flat plate-shaped element body defined by a molded body including magnetic particles such that the coils are in a matrix and winding axes of the coils extend in a thickness direction of the element body, one end portion of each of the coils is exposed to one main surface of the element body, and the other end portion of each of the coils is exposed to the other main surface of the element body, forming electrode films defining input/output terminals on both main surfaces of the element body so as to make contact with one of the end portions of each of the coils, and performing segmentation into individual coil components by cutting the element body at location between the coils adjacent to each other in the thickness direction.

公开(公告)号：US11357668B2

公开(公告)日：2022-06-14

申请号：US15983657

申请日：2018-05-18

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Ryohei Omori ,  Noboru Kato ,  Kunihiro Komaki

IPC: A61F13/42 ,  G06K19/07 ,  G06K19/077 ,  A61F13/496 ,  A61F5/451

Abstract: A sanitary article is equipped with a moisture-detecting RFID tag that includes a moisture-absorptive material; a moisture-detecting RFID tag adjacent to the moisture-absorptive material; and a relay antenna that is connected to the moisture-detecting RFID tag and that extends the communication range by relaying an output of the moisture-detecting RFID tag. Moreover, the moisture-detecting RFID tag includes an RFIC element, and an antenna element that is connected to the RFIC element. The moisture-detecting RFID tag outputs a variation of a communication distance or a signal intensity, originated from a variation of a moisture amount included in the moisture-absorptive material.

公开(公告)号：US11239017B2

公开(公告)日：2022-02-01

申请号：US15933526

申请日：2018-03-23

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Noriyuki Ueki ,  Noboru Kato

IPC: H01F5/00 ,  H01F17/00 ,  H01F19/04 ,  H01F27/29 ,  H01F41/04 ,  H03H7/09 ,  H03H7/42 ,  H03H1/00

Abstract: A common mode choke coil includes a differential transmission line including first and second signal lines, a main circuit including a first coil provided in the first signal line, and a second coil provided in the second signal line and connected to the first coil by magnetic field coupling, and a parallel resonance circuit including a third coil connected to both the first and second coils by magnetic field coupling, and a first capacitor electrically connected in parallel to the third coil. In the common mode choke coil, a first resonant frequency of the main circuit is equal or substantially equal to a second resonant frequency of the parallel resonance circuit.

公开(公告)号：US20210194139A1

公开(公告)日：2021-06-24

申请号：US17177508

申请日：2021-02-17

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Noboru Kato

IPC: H01Q9/42 ,  H01Q1/22 ,  H01Q7/00 ,  H01Q1/36 ,  H01Q1/48 ,  H01Q9/06 ,  H01Q5/321 ,  G06K19/077 ,  H01Q23/00

Abstract: A wireless communication device for transmitting/receiving a high-frequency signal having a predetermined communication frequency. The wireless communication device includes an antenna pattern having an inductance component, an RFIC element connected electrically to the antenna pattern and a capacitive coupling portion capacitively coupling specific confronting regions facing each other of the antenna pattern at multiple points on the antenna pattern, to make up an LC parallel resonant circuit.

公开(公告)号：US11017284B2

公开(公告)日：2021-05-25

申请号：US17021300

申请日：2020-09-15

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kazuki Eshima ,  Noboru Kato

IPC: G06K19/077 ,  G06K19/02 ,  H01Q9/26 ,  H01Q1/22 ,  H01Q1/40 ,  H01Q1/36 ,  H01Q7/00

Abstract: A highly reliable RFID tag is provided that is lighter and smaller and has a desired communication distance, and that can be applied to deformable articles. The RFID tag includes a first end of a first power feeding coil that is connected to a first input and output terminal of an RFIC element, a second end of the first power feeding coil that is connected to one end of a second power feeding coil, and the other end of the second power feeding coil is connected to a second input and output terminal of the RFIC element. Moreover, the RFID tag has a spring-shaped antenna that has a first region with magnetic field coupling of the first power feeding coil, and a second region with magnetic field coupling of the second power feeding coil. The first region and the second region are continuous via a region having an inductance component.

公开(公告)号：US10956691B2

公开(公告)日：2021-03-23

申请号：US16599551

申请日：2019-10-11

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Noboru Kato

IPC: G06K7/08 ,  G06K7/10 ,  G06K19/07

Abstract: An RFID tag reading method, RFID tag reading system, RFID tag reading device, and an article, are provided for preventing fraud on the RFID tag. An exemplary method for reading an RFID tag with a loop antenna housed within a case of an article, includes inserting a tip of a linear antenna into the case through a hole formed in the case by using a reader device with the linear antenna having the tip as an open end, magnetically coupling the linear antenna inserted into the case and the loop antenna of the RFID tag, and reading tag information stored in the RFID tag by the reader device.