Patents by Inventor Nobuhito Tsubaki

Nobuhito Tsubaki 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: 10365809
    Abstract: A display device includes a housing, an operation surface, a position sensor, a press sensor, and a display unit. The position sensor detects a touched position on the operation surface. The press sensor detects a press on the operation surface. The display unit displays an image. When the press sensor detects a pressing amount not smaller than a first threshold, a control unit sets, as a rotation axis of a three-dimensional image, a direction orthogonal to the sliding direction of the touched position detected in the position sensor. The control unit then rotates the three-dimensional image in accordance with the sliding direction of the touched position detected in the position sensor.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: July 30, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Hidekazu Kano, Hiroaki Kitada, Nobuhito Tsubaki
  • Publication number: 20190008687
    Abstract: A fabric that includes a first yarn and a second yarn which generate electric charges having different polarities with the application of external energy thereto. The fabric includes a low-density portion and a high-density portion having a lower porosity than the low-density portion.
    Type: Application
    Filed: September 12, 2018
    Publication date: January 10, 2019
    Inventors: Yutaka Ishiura, Nobuhito Tsubaki, Satoshi Takeshima
  • Patent number: 10147998
    Abstract: An antenna of a communication terminal is disposed on a side on which a bottom surface of a reflective plate, which is included in a display, is present. When the reflective plate is irradiated by an LED light source, the antenna cannot be seen from the side on which a display screen of the display is disposed. Accordingly, an antenna coil of the antenna does not need transparent electrodes and can be made of various materials each having a high conductivity. Therefore, the antenna has high sensitivity, low manufacturing cost, and very efficiently performs near field communication with an external device located on the display screen side of the display.
    Type: Grant
    Filed: February 16, 2018
    Date of Patent: December 4, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Noboru Kato, Masahiro Ozawa, Nobuhito Tsubaki
  • Patent number: 10037486
    Abstract: An RF system is provided that includes an RFID card and a reader-writer device. The RFID card includes a substrate, an RFIC element, an antenna coil, and a deformation sensor. The reader-writer device and the RFID card transmit and receive predetermined information between an antenna coil of the RFID card and an antenna coil of the reader-writer device through a magnetic field. The RFIC element transmits the first signal via the antenna coil when the deformation sensor does not detect bending deformation of the substrate, and the RFIC element transmits the second signal via the antenna coil when the deformation sensor detects the bending deformation of the substrate.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: July 31, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Hideki Kawamura, Nobuhito Tsubaki
  • Patent number: 10033089
    Abstract: An antenna device includes a casing including a metal casing portion and a feed coil. The metal casing portion includes a main surface, a side surface connected to the main surfaces, and a notch portion located in the side surface. The feed coil is disposed inside the casing to be coupled with the metal casing portion by a magnetic field, and includes a winding central portion forming a coil opening portion. The feed coil is disposed near the notch portion, with the coil opening portion directed to a region including the notch portion.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: July 24, 2018
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Shinichi Nakano, Masahiro Ozawa, Nobuhito Tsubaki
  • Patent number: 10020582
    Abstract: To ensure a sufficient communication distance and to concurrently suppress a conductor loss, a coil antenna includes a magnetic core including a first peripheral surface including at least a first principal surface, a first coil conductor located on the first principal surface and wound around a predetermined winding axis, a first base material layer stacked on the first principal surface, including at least a first surface parallel or substantially parallel to the first principal surface, and made of a material having a lower magnetic permeability than the magnetic core, and a second coil conductor located on at least the first surface. Opposite ends of the second coil conductor are coupled to the first coil conductor on the first principal surface, and a direction in which a current flows through the first coil conductor on the first principal surface is substantially the same as a direction in which a current flows through the second coil conductor on the first surface.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: July 10, 2018
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Nobuhito Tsubaki, Takashi Noma, Noboru Kato
  • Publication number: 20180175482
    Abstract: An antenna of a communication terminal is disposed on a side on which a bottom surface of a reflective plate, which is included in a display, is present. When the reflective plate is irradiated by an LED light source, the antenna cannot be seen from the side on which a display screen of the display is disposed. Accordingly, an antenna coil of the antenna does not need transparent electrodes and can be made of various materials each having a high conductivity. Therefore, the antenna has high sensitivity, low manufacturing cost, and very efficiently performs near field communication with an external device located on the display screen side of the display.
    Type: Application
    Filed: February 16, 2018
    Publication date: June 21, 2018
    Inventors: Noboru KATO, Masahiro OZAWA, Nobuhito TSUBAKI
  • Patent number: 9997834
    Abstract: An antenna device includes a base including a planar conductor disposed thereon, and a coil antenna. The coil antenna includes a coil conductor wound around a magnetic core. The coil antenna is arranged such that a coil opening of the coil conductor is closed to an edge of the planar conductor. A current passing through the coil conductor induces a current in the planar conductor. Thus, a first magnetic flux occurs in the coil antenna, and a second magnetic flux occurs in the planar conductor. Therefore, a third magnetic flux occurs in an area of the planar conductor. Accordingly, the antenna device achieves a small footprint, a small-sized communication terminal apparatus and a desired communication distance.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: June 12, 2018
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Teppei Miura, Nobuo Ikemoto, Jun Sasaki, Noboru Kato, Nobuhito Tsubaki
  • Publication number: 20180151954
    Abstract: An antenna device includes a base including a planar conductor disposed thereon, and a coil antenna. The coil antenna includes a coil conductor wound around a magnetic core. The coil antenna is arranged such that a coil opening of the coil conductor is closed to an edge of the planar conductor. A current passing through the coil conductor induces a current in the planar conductor. Thus, a first magnetic flux occurs in the coil antenna, and a second magnetic flux occurs in the planar conductor. Therefore, a third magnetic flux occurs in an area of the planar conductor. Accordingly, the antenna device achieves a small footprint, a small-sized communication terminal apparatus and a desired communication distance.
    Type: Application
    Filed: January 24, 2018
    Publication date: May 31, 2018
    Inventors: Teppei MIURA, Nobuo IKEMOTO, Jun SASAKI, Noboru KATO, Nobuhito TSUBAKI
  • Publication number: 20180136756
    Abstract: A display device includes a display portion, a light source, a reflecting member, and a piezoelectric element. The display portion displays an image. The light source outputs light to the display portion. The reflecting member is provided on one side of a principal surface of the display portion and reflects the light of the light source. The piezoelectric element is provided on one side of the principal surface of the reflecting member.
    Type: Application
    Filed: January 11, 2018
    Publication date: May 17, 2018
    Inventors: HIDEKAZU KANO, Nobuhito Tsubaki
  • Publication number: 20180123223
    Abstract: An antenna device includes a casing including a metal casing portion and a feed coil. The metal casing portion includes a main surface, a side surface connected to the main surfaces, and a notch portion located in the side surface. The feed coil is disposed inside the casing to be coupled with the metal casing portion by a magnetic field, and includes a winding central portion forming a coil opening portion. The feed coil is disposed near the notch portion, with the coil opening portion directed to a region including the notch portion.
    Type: Application
    Filed: December 15, 2017
    Publication date: May 3, 2018
    Inventors: Shinichi NAKANO, Masahiro OZAWA, Nobuhito TSUBAKI
  • Patent number: 9935358
    Abstract: An antenna of a communication terminal is disposed on a side on which a bottom surface of a reflective plate, which is included in a display, is present. When the reflective plate is irradiated by an LED light source, the antenna cannot be seen from the side on which a display screen of the display is disposed. Accordingly, an antenna coil of the antenna does not need transparent electrodes and can be made of various materials each having a high conductivity. Therefore, the antenna has high sensitivity, low manufacturing cost, and very efficiently performs near field communication with an external device located on the display screen side of the display.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: April 3, 2018
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Noboru Kato, Masahiro Ozawa, Nobuhito Tsubaki
  • Patent number: 9917366
    Abstract: An antenna device includes a base including a planar conductor disposed thereon, and a coil antenna. The coil antenna includes a coil conductor wound around a magnetic core. The coil antenna is arranged such that a coil opening of the coil conductor is closed to an edge of the planar conductor. A current passing through the coil conductor induces a current in the planar conductor. Thus, a first magnetic flux occurs in the coil antenna, and a second magnetic flux occurs in the planar conductor. Therefore, a third magnetic flux occurs in an area of the planar conductor. Accordingly, the antenna device achieves a small footprint, a small-sized communication terminal apparatus and a desired communication distance.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: March 13, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Teppei Miura, Nobuo Ikemoto, Jun Sasaki, Noboru Kato, Nobuhito Tsubaki
  • Patent number: 9905926
    Abstract: An antenna device includes a feeding coil antenna and a booster coil antenna electromagnetically coupled to the feeding coil antenna. The feeding coil antenna includes a plurality of coil portions including at least one magnetic body and each including a coil conductor wound around the at least one magnetic body. The plurality of coil portions are connected to one another in an in-phase mode, and are arranged near one another such that winding axes of the coil conductors are oriented approximately in the same direction and at least portions of respective openings of the coil conductors face one another.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: February 27, 2018
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Nobuhito Tsubaki, Noboru Kato
  • Patent number: 9876275
    Abstract: An antenna device includes a casing including a metal casing portion and a feed coil. The metal casing portion includes a main surface, a side surface connected to the main surfaces, and a notch portion located in the side surface. The feed coil is disposed inside the casing to be coupled with the metal casing portion by a magnetic field, and includes a winding central portion forming a coil opening portion. The feed coil is disposed near the notch portion, with the coil opening portion directed to a region including the notch portion.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: January 23, 2018
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Shinichi Nakano, Masahiro Ozawa, Nobuhito Tsubaki
  • Publication number: 20180011628
    Abstract: A display device includes a housing, an operation surface, a position sensor, a press sensor, and a display unit. The position sensor detects a touched position on the operation surface. The press sensor detects a press on the operation surface. The display unit displays an image. When the press sensor detects a pressing amount not smaller than a first threshold, a control unit sets, as a rotation axis of a three-dimensional image, a direction orthogonal to the sliding direction of the touched position detected in the position sensor. The control unit then rotates the three-dimensional image in accordance with the sliding direction of the touched position detected in the position sensor.
    Type: Application
    Filed: September 6, 2017
    Publication date: January 11, 2018
    Inventors: Hidekazu Kano, Hiroaki Kitada, Nobuhito Tsubaki
  • Publication number: 20170357886
    Abstract: An RF system is provided that includes an RFID card and a reader-writer device. The RFID card includes a substrate, an RFIC element, an antenna coil, and a deformation sensor. The reader-writer device and the RFID card transmit and receive predetermined information between an antenna coil of the RFID card and an antenna coil of the reader-writer device through a magnetic field. The RFIC element transmits the first signal via the antenna coil when the deformation sensor does not detect bending deformation of the substrate, and the RFIC element transmits the second signal via the antenna coil when the deformation sensor detects the bending deformation of the substrate.
    Type: Application
    Filed: August 1, 2017
    Publication date: December 14, 2017
    Inventors: HIDEKI KAWAMURA, Nobuhito Tsubaki
  • Patent number: 9780839
    Abstract: An active electrode and a passive electrode are electrically field-coupled with an active electrode and a passive electrode provided in a power transmission device, respectively. Power in a high frequency voltage excited on the active electrode and the passive electrode is supplied to a mobile unit via a step-down transformer, a rectification smoothing circuit, and a DC-DC converter. A CPU turns off switches when wireless communication is carried out. The passive electrode functions as a booster antenna that is magnetically field-coupled with an antenna coil. A high frequency signal outputted from an RF circuit is transmitted via the antenna coil and the passive electrode, and a high frequency signal transmitted from the power transmission circuit is inputted, via the passive electrode and the antenna coil, to the RF circuit.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: October 3, 2017
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Shinji Goma, Nobuhito Tsubaki, Noboru Kato, Tsuyoshi Suesada
  • Publication number: 20170262066
    Abstract: An operation input device having an exterior portion that includes a band portion extending in a belt shape and having flexibility and a housing; and a control unit (23) that is housed in the exterior portion and performs input processing based on a detection signal indicating detection of a predetermined operation. The operation input device is provided with a deformation detection unit that outputs a detection signal associated with a deformation of the band portion or a deformation of the housing to the control unit.
    Type: Application
    Filed: May 30, 2017
    Publication date: September 14, 2017
    Inventors: Hideki Kawamura, Nobuhito Tsubaki, Fumiya Isono, Takafumi Inoue, Takashi Kihara, Jun Endo, Masato Saito
  • Publication number: 20170153706
    Abstract: A piezoelectric element that includes a plurality of laminated piezoelectric films and adhesive layers. The piezoelectric films stretch and contract in a predetermined direction parallel to principal surfaces thereof when a voltage is applied thereto. The adhesive layers are formed partially between the piezoelectric films when seen from a plan view, are aligned at intervals in the predetermined direction of the stretching and contracting of the piezoelectric films and bond the piezoelectric films to each other. The adhesive layers are formed at both ends of the piezoelectric films in the predetermined direction.
    Type: Application
    Filed: February 14, 2017
    Publication date: June 1, 2017
    Inventors: KENTARO USUI, Junichi Hashimoto, Kentaro Mikawa, Nobuhito Tsubaki