Patents by Inventor Norio Sakai

Norio Sakai 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).

  • Patent number: 11430601
    Abstract: A coil electrode 4 provided in a coil component 1a includes a plurality of inner metal pins 5a arranged on an inner peripheral side of a coil core 3, a plurality of outer metal pins 5b arranged on an outer peripheral side of the coil core 3 to form a plurality of pairs with the inner metal pins 5a, a plurality of lower wiring patterns 7 that connect lower ends of the inner metal pins 5a and the outer metal pins 5b in the pairs, and a plurality of upper wiring patterns 6 that connect upper ends of the outer metal pins 5b to upper ends of inner metal pins 5a adjacent to the inner metal pins 5a that form the pairs with the outer metal pins 5b.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: August 30, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yoshihito Otsubo, Norio Sakai
  • Patent number: 11239022
    Abstract: An inductor component includes an inductor electrode having two metal pins that form input and output terminals and a connecting conductor that connects one end of each of the metal pins to each other, the inductor electrode arranged such that other ends of the metal pins oppose each other, and a resin layer containing the inductor electrode such that other ends of the metal pins are exposed. The resin layer is formed having a single-layer structure. Variation in the characteristics of the inductor electrode can be reduced as compared to a case where the parts corresponding to the metal pins of the inductor electrode are formed as via conductors or through-hole conductors. Because the resin layer has a single-layer structure, stress acting on joint portions between the metal pins and the connecting conductor can be reduced, which makes it possible to improve the reliability of the inductor component.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: February 1, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yoshihito Otsubo, Shinichiro Banba, Mitsuyoshi Nishide, Norio Sakai
  • Patent number: 11164695
    Abstract: A first resin layer (resin insulating layer) is formed by forming first and third covering portions in close contact with peripheral surfaces of respective end portions of first and second metal pins on the side closer to first end surfaces thereof, and by forming a body portion in a state of covering the respective surfaces of the first and third covering portions. Therefore, even when the first resin layer is thermally contracted, boundary regions of the one principal surface of the first resin layer around the respective end portions of the first and second metal pins on the side closer to the first end surfaces are filled with the first and third covering portions. Hence gaps can be prevented from being generated in those boundary regions, and a columnar conductor (first metal pin) can be avoided from deviating in position.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: November 2, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yoshihito Otsubo, Shinichiro Banba, Mitsuyoshi Nishide, Norio Sakai, Haruhiko Mori
  • Patent number: 11139101
    Abstract: A coil component includes an insulating layer in which a magnetic core is embedded, coil electrodes wound around the magnetic core, external connection pad electrodes that are provided on the upper surface of the insulating layer and are connected to the coil electrodes. Each of the coil electrodes includes a plurality of inner metal pins standing in the insulating layer, a plurality of outer metal pins standing in the insulating layer, a plurality of upper wiring patterns formed on the upper surface of the insulating layer, and a plurality of lower wiring pattern formed on the undersurface of the insulating layer. Each of the pad electrodes is directly connected to the upper end surface of the inner metal pin or the outer metal pin, and has, in plan view, an area larger than that of the single upper wiring pattern or the single lower wiring pattern.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: October 5, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yoshihito Otsubo, Norio Sakai
  • Patent number: 11075029
    Abstract: Substrate-side wiring electrode patterns 16, which form a part of a coil electrode 12, are provided on a wiring substrate 20, and as a result reductions in the size and profile of a resin insulating layer 31, in which a coil core 11 is buried, can be achieved. Therefore, reductions in the size and the profile of a coil module 1 can be achieved compared with a coil module of the related art which is formed by mounting a coil component on a wiring substrate. In addition, since the substrate-side wiring electrode patterns 16, which form a part of the coil electrode 12, are provided on the wiring substrate 20, the heat generated by a coil 10 can be efficiently released from the substrate-side wiring electrode patterns 16 to the wiring substrate 20. Therefore, the heat dissipation property of the coil module 1 can be improved at low cost.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: July 27, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Shinichiro Banba, Yoshihito Otsubo, Norio Sakai, Mitsuyoshi Nishide
  • Patent number: 10912188
    Abstract: A high-frequency component includes a resin layer and a high-frequency circuit provided in and on the resin layer and includes an inductor and an electronic component. The electronic component is arranged on an upper surface of the resin layer. The inductor includes first and second metal pins provided such that upper end surfaces thereof are exposed from the upper surface of the resin layer and lower end surfaces thereof are exposed from a lower surface of the resin layer. The electronic component has a first outer electrode provided at a position superposed with the upper end surface of the first metal pin in plan view and is connected to the first metal pin, and a second outer electrode provided at a position superposed with the upper end surface of the second metal pin in plan view and is connected to the second metal pin.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: February 2, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yoshihito Otsubo, Norio Sakai, Tetsuya Kanagawa
  • Patent number: 10886059
    Abstract: A coil component 1a includes an insulation layer 2 in which a magnetic body core 3 is embedded; a coil electrode 4 wound around the magnetic body core 3; and an input metal pin 5a and an output metal pin 5b for external connection whose lower end surfaces are respectively provided being exposed from the insulation layer 2 in a state of the input and output metal pins 5a and 5b being provided upright in a thickness direction of the insulation layer 2. The coil electrode 4 includes a plurality of coil metal pins 4a and 4b that are arranged around the magnetic body core 3 in a state of being provided upright in the thickness direction of the insulation layer 2, and the input metal pin 5a and the output metal pin 5b are formed to be larger in diameter than the coil metal pins 4a and 4b.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: January 5, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yoshihito Otsubo, Junji Kurobe, Norio Sakai
  • Patent number: 10734150
    Abstract: An inductor device (1) includes a magnetic body (2) and a conductor buried in the magnetic body (2), and the conductor includes first conductors (3) as metal pins. The magnetic body (2) is formed into a flat plate shape with a first main surface and a second main surface each having a predetermined shape, which oppose each other, and side surfaces connecting the first main surface and the second main surface. The conductor includes the first conductors (3) one end portions of which are exposed to the second main surface of the magnetic body (2) and a second conductor (4) which is connected to the other end portions of the first conductors (3).
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: August 4, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yoshihito Otsubo, Norio Sakai, Mitsuyoshi Nishide, Shinichiro Banba, Tatsuyuki Yamada, Tetsuya Kanagawa, Atsuko Omori
  • Patent number: 10734156
    Abstract: An inductor component including an inductor electrode includes an insulating layer and an outer electrode for external connection formed on the upper surface of the insulating layer. The inductor electrode includes a metal pin for input/output that has an upper end surface connected to the outer electrode and that is embedded in the insulating layer. The outer electrode includes a base electrode formed on the upper surface of the insulating layer and composed of a conductive paste, and a surface electrode formed on the base electrode by plating. The surface electrode is formed such that the area of a cross section thereof perpendicular to the thickness direction on an outer layer side away from the base electrode is larger than the area of a cross section thereof perpendicular to the thickness direction on an inner layer side close to the base electrode.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: August 4, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yoshihito Otsubo, Shinichiro Banba, Mitsuyoshi Nishide, Norio Sakai
  • Patent number: 10726988
    Abstract: A technique capable of reducing the resistance of an inductor electrode is provided. A second conductor 6 is constituted by an undercoating layer 11 formed of a conductive paste, and a plating layer 12 formed to cover the undercoating layer 11. Therefore, the second conductor 6 constituting part of the inductor electrode 7 can be formed at a lower cost. Respective first end surfaces 8a and 9a of first and second metal pins 8 and 9 are connected to each other by the plating layer 12 of the second conductor 6 without interposition of the undercoating layer 11 thereof between them. Hence the resistance of the inductor electrode 7 can be reduced at a lower cost.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: July 28, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yoshihito Otsubo, Shinichiro Banba, Norio Sakai
  • Patent number: 10672554
    Abstract: An inductor component 1a includes a resin layer 3 and an inductor electrode 6. The inductor electrode 6 includes metal pins 7a to 7d that extend in the resin layer 3 with upper end surfaces thereof exposed from the upper surface 3a of the resin layer 3, and upper wiring plates 8a and 8b that are disposed on the upper surface 3a of the resin layer 3 and that connect upper end surfaces of the short metal pins 7a and 7c and upper end surfaces of the long metal pins 7b and 7d to each other. In this case, the inductor electrode 6 is formed of the metal pins 7a to 7d and wiring plates 8a to 8c that each have a specific electrical resistance lower than that of a conductive paste and plating, and the resistance of the entire inductor electrode 6 can be decreased.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: June 2, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Norio Sakai, Yoshihito Otsubo, Hideaki Hashi, Takayuki Tange, Munetake Miyashita, Takeshi Wake, Yasuhiro Higashide
  • Patent number: 10638014
    Abstract: An information output system includes a main memory, a first processing circuit, a second processing circuit, an output device, and notifying circuitry. The main memory is configured to store information. The first processing circuit is configured to read the information from the main memory. The second processing circuit is configured to transfer the information read. The output device is configured to output the information transferred. The notifying circuitry is configured to notify the second processing circuit of an activation timing of the first processing circuit. The second processing circuit is configured to start to transfer the information after being notified of the activation timing of the first processing circuit or request the first processing circuit to cancel reading of the information, according to a time by which the activation timing notified is delayed from an activation timing of the second processing circuit.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: April 28, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Tasuku Nagai, Norio Sakai
  • Patent number: 10559535
    Abstract: The present disclosure improves the adhesive strength of a shield film in a high-frequency module that includes a shield film that shields components from unwanted electromagnetic waves from the outside. A high-frequency module is provided with: a sealing body that includes a multilayer wiring substrate, components that are mounted on an upper surface of the multilayer wiring substrate, and a sealing resin layer that is stacked on the upper surface of the multilayer wiring substrate and covers the components; and a shield film that covers a surface of the sealing resin layer. A side surface of the sealing body has curved surface portions formed so as to have a curved surface shape, and the curved surface portions are roughened with a plurality of grooves.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: February 11, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yoshihito Otsubo, Yoshihisa Masuda, Hideo Nakagoshi, Yuta Morimoto, Norio Sakai, Yoriyuki Matsumoto, Hiroaki Tsuchida
  • Patent number: 10553341
    Abstract: An improvement in coil characteristics is achieved by performing accurate positioning of a magnetic core. A coil component 2 includes a wiring substrate 3, a magnetic core 4 that has a ring-like shape and that is disposed on a bottom surface of the wiring board 3, and a coil electrode 5 that is wound around the magnetic core 4, and the coil electrode 5 includes a plurality of inner metallic pins 11a and outer metallic pins 11b that are vertically arranged around the magnetic core 4. First end portions of the plurality of inner and outer metallic pins 11a and 11b are each connected, with solder, to an end surface of a corresponding one of a plurality of via conductors 9a, the end surface being exposed at the bottom surface of the wiring board 3.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: February 4, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yoshihito Otsubo, Norio Sakai
  • Patent number: 10553347
    Abstract: A module includes: an insulating layer; an annular coil core in the insulating layer; a coil electrode having outer metal pins arranged along an outer circumferential surface of the coil core, inner metal pins arranged along an inner circumferential surface of the coil core to form pairs with corresponding outer metal pins 7, bonding wires, each connecting one end surface of each outer metal pin and inner metal pin that form a pair, and wiring electrode patterns, each connecting another end surface of each outer metal pin to another end surface of an inner metal pin adjacent in a predetermined direction to the inner metal pin that forms a pair with the outer metal pin; and a buffer layer, formed from a non-conductive material having a lower elastic modulus than the insulating layer, that covers the surface of the coil core.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: February 4, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Shinichiro Banba, Norio Sakai, Mitsuyoshi Nishide
  • Patent number: 10506717
    Abstract: An inductor component 1a includes a resin layer 3 and an inductor electrode 6. The inductor electrode 6 includes metal pins 7a to 7d that extend in the resin layer 3 with end faces 70a to 70d of the metal pins 7a to 7d exposed from an upper surface 3a of the resin layer 3, and upper wiring plates 8a and 8b that are disposed on the upper surface 3a of the resin layer 3 and that connect the end faces 70a and 70c of the short metal pins 7a and 7c and the end faces 70b and 70d of the long metal pins 7b and 7d to each other. In this case, the inductor electrode 6 is formed of the metal pins 7a to 7d and the wiring plates 8a to 8c that each have a specific electrical resistance lower than that of a conductive paste and plating.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: December 10, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yoshihito Otsubo, Shinichiro Banba, Mitsuyoshi Nishide, Norio Sakai
  • Patent number: 10476133
    Abstract: An electrical element includes a flexible antenna and a rigid member higher in rigidity than the flexible antenna. At least one of the flexible antenna and the rigid member is made of thermoplastic resin. A conductor pattern defining at least a portion of a section that performs the main function of the electrical element is provided at the flexible antenna. No conductor pattern that performs the main function of the electrical element is provided at the rigid member. Opposing surfaces of the flexible antenna and the rigid member are directly joined to each other.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: November 12, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Bunta Okamoto, Isamu Morita, Satoshi Ishino, Jun Sasaki, Yoshihito Otsubo, Keisuke Araki, Norio Sakai
  • Publication number: 20190306368
    Abstract: An information output system includes a main memory, a first processing circuit, a second processing circuit, an output device, and notifying circuitry. The main memory is configured to store information. The first processing circuit is configured to read the information from the main memory. The second processing circuit is configured to transfer the information read. The output device is configured to output the information transferred. The notifying circuitry is configured to notify the second processing circuit of an activation timing of the first processing circuit. The second processing circuit is configured to start to transfer the information after being notified of the activation timing of the first processing circuit or request the first processing circuit to cancel reading of the information, according to a time by which the activation timing notified is delayed from an activation timing of the second processing circuit.
    Type: Application
    Filed: March 5, 2019
    Publication date: October 3, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Tasuku NAGAI, Norio SAKAI
  • Patent number: 10418168
    Abstract: A small-sized inductor with desired characteristics is provided. An inductor 1a includes a resin layer 3 and an inductor electrode 6, which includes an inner winding portion 6a and an outer winding portion 6b. The inner winding portion 6a and the outer winding portion 6b forming the inductor electrode 6 include the metal pins 7a to 7d and the wiring boards 8a to 8d. Here, the inner winding portion 6a and the outer winding portion 6b include the metal pins 7a to 7d and the wiring boards 8a to 8d, which have lower specific resistance than conductive paste or plating. This structure thus can reduce the resistance of the entirety of the inductor electrode 6, and improve the characteristics of the inductor 1a. The inductor 1a can reduce its size by including the inductor electrode 6 wound to have a multiplex winding structure.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: September 17, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yoshihito Otsubo, Mitsuyoshi Nishide, Norio Sakai
  • Patent number: 10410782
    Abstract: A coil component is provided with only first and second columnar conductors that are a part of a coil electrode. This can simplify the manufacturing process and reduce the cost of the coil component. A wiring substrate is provided with substrate-side wiring electrode traces that form the remaining part of the coil electrode. In the process of forming the wiring substrate using a substrate forming technique commonly used, the substrate-side wiring electrode traces can be easily formed together with other wiring electrodes. Therefore, when the coil electrode is configured to be formed by placing the coil component on the wiring substrate, a coil module including the coil component can be inexpensively manufactured.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: September 10, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yoshihito Otsubo, Norio Sakai, Mitsuyoshi Nishide, Shinichiro Banba