Patents by Inventor Kozo Sato
Kozo Sato 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: 20240105380Abstract: A coil component having improved magnetic characteristics. The coil component includes a body having a substantially hexahedral shape and including a winding portion formed by winding a conductive wire based on a winding axis and a magnetic body portion; and paired metal terminals having joint portions to which first and second ends of the conductive wire are electrically connected. Each of the paired metal terminals extends outside an outer surface of the body parallel to the winding axis. Of four quadrants separated from one another by imaginary coordinate axes that are orthogonal to one another with the center of the body as the origin in plan view in the winding axis direction, more than half the area of one of the joint portions is disposed in a quadrant not adjacent to the quadrant in which more than half the area of the other joint portion is disposed.Type: ApplicationFiled: August 4, 2023Publication date: March 28, 2024Applicant: Murata Manufacturing Co., Ltd.Inventors: Kozo SATO, Yuichi OHBA
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Patent number: 11908611Abstract: A formed body incorporating a coil by using: a coil formed by winding a conductive wire, and a formed body incorporating the coil, the formed body being formed with a sealing material containing a resin and a magnetic material. The coil is formed by winding the conductive wire so that lead-out ends are positioned at an outer periphery of a wound portion. The formed body is formed so that surfaces of the coil are partially exposed on four side surfaces of the formed body which are parallel to a winding axis of the coil, and the area of a portion of the formed body outside the outer periphery of the wound portion is almost equal to or smaller than the area of a portion of the formed body inside an inner periphery of the wound portion of the coil.Type: GrantFiled: October 19, 2020Date of Patent: February 20, 2024Assignee: Murata Manufacturing Co., Ltd.Inventors: Yoshitoshi Shoda, Kozo Sato, Makoto Murakami, Kunio Sasamori, Naoto Takahashi
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Publication number: 20230317350Abstract: A coil component that is a multilayer coil component includes an element assembly containing a magnetic material, a coil embedded in the element assembly, an outer electrode electrically coupled to the coil and disposed on a bottom surface of the element assembly, and an insulating layer disposed on the bottom surface of the element assembly. The insulating layer has a cavity, and the outer electrode is disposed in the cavity.Type: ApplicationFiled: March 15, 2023Publication date: October 5, 2023Applicant: Murata Manufacturing Co., Ltd.Inventors: Kozo SATO, Minoru GIBU
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Publication number: 20230207183Abstract: An inductor includes a body that includes a coil and that contains a magnetic portion in which the coil is embedded, and a pair of outer electrodes that is disposed on a mounting surface of the body. The coil includes a winding portion formed by winding a conductive wire that has a coating layer and that has a pair of wide surfaces, and a pair of extended portions that extends from the winding portion. The pair of extended portions includes a twisted portion that is connected to the winding portion. The twisted portion is twisted about a virtual center line of an end portion of the winding portion, and a twisted part bends toward the mounting surface about an axis substantially perpendicular to the wide surfaces at the end portion. End portions of the pair of extended portions near the mounting surface are connected to the pair of outer electrodes.Type: ApplicationFiled: February 17, 2023Publication date: June 29, 2023Applicant: Murata Manufacturing Co., Ltd.Inventors: Kozo SATO, Hiroshi OKUIZUMI, Yoshiharu SATOU
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Patent number: 11626240Abstract: An inductor includes a body that includes a coil and that contains a magnetic portion in which the coil is embedded, and a pair of outer electrodes that is disposed on a mounting surface of the body. The coil includes a winding portion formed by winding a conductive wire that has a coating layer and that has a pair of wide surfaces, and a pair of extended portions that extends from the winding portion. The pair of extended portions includes a twisted portion that is connected to the winding portion. The twisted portion is twisted about a virtual center line of an end portion of the winding portion, and a twisted part bends toward the mounting surface about an axis substantially perpendicular to the wide surfaces at the end portion. End portions of the pair of extended portions near the mounting surface are connected to the pair of outer electrodes.Type: GrantFiled: March 25, 2020Date of Patent: April 11, 2023Assignee: Murata Manufacturing Co., Ltd.Inventors: Kozo Sato, Hiroshi Okuizumi, Yoshiharu Satou
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Patent number: 11527351Abstract: A surface-mount inductor includes an element assembly having a core, a coil, and a magnetic material; and a pair of external terminals on a mounting surface of the element assembly. The core has a base portion and a columnar portion on an upper surface of the base portion. The coil is disposed on the base portion, and has a wound portion on the columnar portion, and a pair of extended portions extended from the wound portion. The base portion has at least one ridge portion at which the upper surface and a side surface are in linear contact with each other. The pair of extended portions are each disposed such that a flat surface portion connected to a flat surface portion disposed at an inner side portion of a conductive wire located at an outer peripheral portion of the wound portion is close to the ridge portion.Type: GrantFiled: August 8, 2019Date of Patent: December 13, 2022Assignee: Murata Manufacturing Co., Ltd.Inventors: Kozo Sato, Mikiya Aoki, Hiroyuki Aoki, Kazuhisa Kitamura
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Patent number: 11496100Abstract: A matching network is a matching network of a power amplifier circuit that outputs a signal obtained by a differential amplifier amplifying power of a high-frequency signal. The matching network includes an input-side winding connected between differential outputs of the differential amplifier; an output-side winding that is coupled to the input-side winding via an electromagnetic field and whose one end is connected to a reference potential; a first LC series resonant circuit including a capacitive element and an inductive element connected in series with each other, and being connected in parallel with the input-side winding; and a second LC series resonant circuit including a capacitive element and an inductive element connected in series with each other, and being connected in parallel with the output-side winding.Type: GrantFiled: September 3, 2020Date of Patent: November 8, 2022Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Kiichiro Takenaka, Masahiro Ito, Tsuyoshi Sato, Kozo Sato, Hidetoshi Matsumoto
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Patent number: 11087917Abstract: A surface-mount inductor includes an element assembly having a core, a coil, and a magnetic material; and a pair of external terminals on a mounting surface of the element assembly. The core has a base portion and a columnar portion on an upper surface of the base portion. The coil is disposed on the base portion, and has a wound portion on the columnar portion, and a pair of extended portions extended from the wound portion. In a cross-section parallel to a winding axis, the wound portion has, in at least a part of a region where the upper stage and the lower stage are in contact with or oppose each other, a boundary surface formed by one portion of a conductive wire at one of upper and lower stage sides being in contact with or opposing a plurality of portions of the conductive wire at the other side.Type: GrantFiled: August 6, 2019Date of Patent: August 10, 2021Assignee: Murata Manufacturing Co., Ltd.Inventors: Kozo Sato, Mikiya Aoki, Hiroyuki Aoki, Kazuhisa Kitamura
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Publication number: 20210098184Abstract: An inductor includes a body including a magnetic portion and a coil embedded in the magnetic portion and outer electrodes. The coil includes a wound portion formed by winding a conductive wire having a pair of wide surfaces in upper and lower layers and first and second lead-out portions extending from end portions of the wound portion at outermost peripheries of the upper and lower layers. One wide surface of a distal end portion of the first lead-out portion is exposed at a mounting surface of the body, a first surface adjacent to the mounting surface, and a corner portion therebetween. One wide surface of a distal end portion of the second lead-out portion is exposed at the mounting surface, a second surface adjacent to the mounting surface, and a corner portion therebetween. The outer electrodes cover the exposed wide surfaces of the first and second lead-out portions.Type: ApplicationFiled: September 25, 2020Publication date: April 1, 2021Applicant: Murata Manufacturing Co., Ltd.Inventors: Hiroshi OKUIZUMI, Kozo SATO
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Publication number: 20210035731Abstract: A formed body incorporating a coil by using: a coil formed by winding a conductive wire, and a formed body incorporating the coil, the formed body being formed with a sealing material containing a resin and a magnetic material. The coil is formed by winding the conductive wire so that lead-out ends are positioned at an outer periphery of a wound portion. The formed body is formed so that surfaces of the coil are partially exposed on four side surfaces of the formed body which are parallel to a winding axis of the coil, and the area of a portion of the formed body outside the outer periphery of the wound portion is almost equal to or smaller than the area of a portion of the formed body inside an inner periphery of the wound portion of the coil.Type: ApplicationFiled: October 19, 2020Publication date: February 4, 2021Applicant: Murata Manufacturing Co., Ltd.Inventors: Yoshitoshi SHODA, Kozo SATO, Makoto MURAKAMI, Kunio SASAMORI, Naoto TAKAHASHI
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Publication number: 20200403582Abstract: A matching network is a matching network of a power amplifier circuit that outputs a signal obtained by a differential amplifier amplifying power of a high-frequency signal. The matching network includes an input-side winding connected between differential outputs of the differential amplifier; an output-side winding that is coupled to the input-side winding via an electromagnetic field and whose one end is connected to a reference potential; a first LC series resonant circuit including a capacitive element and an inductive element connected in series with each other, and being connected in parallel with the input-side winding; and a second LC series resonant circuit including a capacitive element and an inductive element connected in series with each other, and being connected in parallel with the output-side winding.Type: ApplicationFiled: September 3, 2020Publication date: December 24, 2020Inventors: Kiichiro TAKENAKA, Masahiro ITO, Tsuyoshi SATO, Kozo SATO, Hidetoshi MATSUMOTO
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Patent number: 10847309Abstract: A formed body incorporating a coil by using: a coil formed by winding a conductive wire, and a formed body incorporating the coil, the formed body being formed with a sealing material containing a resin and a magnetic material. The coil is formed by winding the conductive wire so that lead-out ends are positioned at an outer periphery of a wound portion. The formed body is formed so that surfaces of the coil are partially exposed on four side surfaces of the formed body which are parallel to a winding axis of the coil, and the area of a portion of the formed body outside the outer periphery of the wound portion is almost equal to or smaller than the area of a portion of the formed body inside an inner periphery of the wound portion of the coil.Type: GrantFiled: January 17, 2017Date of Patent: November 24, 2020Assignee: Murata Manufacturing Co., Ltd.Inventors: Yoshitoshi Shoda, Kozo Sato, Makoto Murakami, Kunio Sasamori, Naoto Takahashi
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Patent number: 10797657Abstract: A matching network is a matching network of a power amplifier circuit that outputs a signal obtained by a differential amplifier amplifying power of a high-frequency signal. The matching network includes an input-side winding connected between differential outputs of the differential amplifier; an output-side winding that is coupled to the input-side winding via an electromagnetic field and whose one end is connected to a reference potential; a first LC series resonant circuit including a capacitive element and an inductive element connected in series with each other, and being connected in parallel with the input-side winding; and a second LC series resonant circuit including a capacitive element and an inductive element connected in series with each other, and being connected in parallel with the output-side winding.Type: GrantFiled: December 12, 2018Date of Patent: October 6, 2020Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Kiichiro Takenaka, Masahiro Ito, Tsuyoshi Sato, Kozo Sato, Hidetoshi Matsumoto
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Publication number: 20200312528Abstract: An inductor includes a body that includes a coil and that contains a magnetic portion in which the coil is embedded, and a pair of outer electrodes that is disposed on a mounting surface of the body. The coil includes a winding portion formed by winding a conductive wire that has a coating layer and that has a pair of wide surfaces, and a pair of extended portions that extends from the winding portion. The pair of extended portions includes a twisted portion that is connected to the winding portion. The twisted portion is twisted about a virtual center line of an end portion of the winding portion, and a twisted part bends toward the mounting surface about an axis substantially perpendicular to the wide surfaces at the end portion. End portions of the pair of extended portions near the mounting surface are connected to the pair of outer electrodes.Type: ApplicationFiled: March 25, 2020Publication date: October 1, 2020Applicant: Murata Manufacturing Co., Ltd.Inventors: Kozo SATO, Hiroshi OKUIZUMI, Yoshiharu SATOU
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Patent number: 10763025Abstract: A surface-mount inductor includes an element assembly having a core, a coil, and a magnetic material; and a pair of external terminals disposed on a mounting surface of the element assembly. The core has a base portion and a columnar portion on an upper surface of the base portion. The coil is disposed on the base portion, and has a wound portion on the columnar portion, and a pair of extended portions extended from the wound portion toward a side surface of the base portion. The magnetic material includes the coil and covers at least a part of the core. The external terminals are disposed on the mounting surface of the element assembly and connected to the extended portions. The surface-mount inductor has, on a surface at a mounting surface side of the wound portion, a curved portion that is curved toward a side opposite to the mounting surface.Type: GrantFiled: August 6, 2019Date of Patent: September 1, 2020Assignee: Murata Manufacturing Co., Ltd.Inventors: Kozo Sato, Mikiya Aoki, Hiroyuki Aoki, Kazuhisa Kitamura
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Publication number: 20200152374Abstract: A surface-mount inductor includes an element assembly having a core, a coil, and a magnetic material; and a pair of external terminals on a mounting surface of the element assembly. The core has a base portion and a columnar portion on an upper surface of the base portion. The coil is disposed on the base portion, and has a wound portion on the columnar portion, and a pair of extended portions extended from the wound portion. The base portion has at least one ridge portion at which the upper surface and a side surface are in linear contact with each other. The pair of extended portions are each disposed such that a flat surface portion connected to a flat surface portion disposed at an inner side portion of a conductive wire located at an outer peripheral portion of the wound portion is close to the ridge portion.Type: ApplicationFiled: August 8, 2019Publication date: May 14, 2020Applicant: Murata Manufacturing Co., Ltd.Inventors: Kozo SATO, Mikiya AOKI, Hiroyuki AOKI, Kazuhisa KITAMURA
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Publication number: 20200152367Abstract: A surface-mount inductor includes an element assembly having a core, a coil, and a magnetic material; and a pair of external terminals disposed on a mounting surface of the element assembly. The core has a base portion and a columnar portion on an upper surface of the base portion. The coil is disposed on the base portion, and has a wound portion on the columnar portion, and a pair of extended portions extended from the wound portion toward a side surface of the base portion. The magnetic material includes the coil and covers at least a part of the core. The external terminals are disposed on the mounting surface of the element assembly and connected to the extended portions. The surface-mount inductor has, on a surface at a mounting surface side of the wound portion, a curved portion that is curved toward a side opposite to the mounting surface.Type: ApplicationFiled: August 6, 2019Publication date: May 14, 2020Applicant: Murata Manufacturing Co., Ltd.Inventors: Kozo SATO, Mikiya AOKI, Hiroyuki AOKI, Kazuhisa KITAMURA
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Publication number: 20200152373Abstract: A surface-mount inductor includes an element assembly having a core, a coil, and a magnetic material; and a pair of external terminals on a mounting surface of the element assembly. The core has a base portion and a columnar portion on an upper surface of the base portion. The coil is disposed on the base portion, and has a wound portion on the columnar portion, and a pair of extended portions extended from the wound portion. In a cross-section parallel to a winding axis, the wound portion has, in at least a part of a region where the upper stage and the lower stage are in contact with or oppose each other, a boundary surface formed by one portion of a conductive wire at one of upper and lower stage sides being in contact with or opposing a plurality of portions of the conductive wire at the other side.Type: ApplicationFiled: August 6, 2019Publication date: May 14, 2020Applicant: Murata Manufacturing Co., Ltd.Inventors: Kozo SATO, Mikiya AOKI, Hiroyuki AOKI, Kazuhisa KITAMURA
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Patent number: 10426031Abstract: A method for producing a flexible printed circuit board according to an embodiment of the present invention includes a through-hole formation step of preparing a base material including a base film having insulating properties and flexibility and a pair of metal films stacked on both surface sides of the base film, and forming a through-hole in the metal film on a front surface side of the base material and the base film; a filling step of stacking, by electroplating on a front surface of the base material, stacking a conductive material on a surface of the metal film on the front surface side to form a conductive material layer and to fill the through-hole with the conductive material; and a removal step of removing, by etching the front surface of the base material, a surface layer of the conductive material layer stacked on the surface of the metal film on the front surface side and a surface layer of the conductive material filling the through-hole.Type: GrantFiled: October 16, 2015Date of Patent: September 24, 2019Assignee: SUMITOMO ELECTRIC PRINTED CIRCUITS, INC.Inventors: Tadahiro Kaibuki, Kozo Sato
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Publication number: 20190199298Abstract: A matching network is a matching network of a power amplifier circuit that outputs a signal obtained by a differential amplifier amplifying power of a high-frequency signal. The matching network includes an input-side winding connected between differential outputs of the differential amplifier; an output-side winding that is coupled to the input-side winding via an electromagnetic field and whose one end is connected to a reference potential; a first LC series resonant circuit including a capacitive element and an inductive element connected in series with each other, and being connected in parallel with the input-side winding; and a second LC series resonant circuit including a capacitive element and an inductive element connected in series with each other, and being connected in parallel with the output-side winding.Type: ApplicationFiled: December 12, 2018Publication date: June 27, 2019Inventors: Kiichiro TAKENAKA, Masahiro ITO, Tsuyoshi SATO, Kozo SATO, Hidetoshi MATSUMOTO