Patents by Inventor Yoshihiro Kawamura

Yoshihiro Kawamura 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: 11183448
    Abstract: A wiring circuit board includes a first insulating layer, a terminal, a second insulating layer disposed at one side in a thickness direction of the terminal, and a wire continuous to the terminal in a direction crossing the thickness direction. The first insulating layer has an opening portion passing through the first insulating layer in the thickness direction and having the opening cross-sectional area increasing as being closer to one side in the thickness direction. The terminal has a peripheral end portion and a solid portion. The peripheral end portion contacts with an inner side surface of the first insulating layer. The inner side surface forms the opening portion. The solid portion integrally disposed with the peripheral end portion at the inner side of the peripheral end portion. The peripheral end portion and the solid portion fill the entire opening portion.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: November 23, 2021
    Assignee: NITTO DENKO CORPORATION
    Inventors: Hayato Takakura, Shuichi Wakaki, Shusaku Shibata, Yoshihiro Kawamura, Masaki Ito
  • Publication number: 20210309448
    Abstract: A bag material has a tubular shape and can be folded back at an intermediate position in a longitudinal direction. Crushed stones can be stored in a folded part of the back material. An opening on one side of the bag material can be moved to a position close to an opening on the other side of the bag material. A one-side closing rope that closes the opening on the one side of the bag material is provided near this opening. An other-side closing rope that closes the opening on the other side of the bag material is provided near this opening. The other of the one-side closing rope and the other-side closing ropes can be released with the opening closed by one closing rope.
    Type: Application
    Filed: July 31, 2018
    Publication date: October 7, 2021
    Inventors: Koji KAJIWARA, Hironori KAWAMURA, Yoshihiro OGAWA, Shigeru MATSUO
  • Publication number: 20210303964
    Abstract: An apparatus control device includes: at least one processor; and at least one first memory that stores a program executed by the processor, in which the processor acquires input data based on at least one of acceleration and angular velocity generated by application of an external force to an apparatus, classifies a plurality of the acquired input data into a plurality of clusters by an unsupervised clustering method, acquires relationship data representing relationship between the acquired input data and the plurality of classified clusters, and controls movement of the apparatus based on the acquired relationship data.
    Type: Application
    Filed: February 11, 2021
    Publication date: September 30, 2021
    Applicant: CASIO COMPUTER CO., LTD.
    Inventors: Hirokazu HASEGAWA, Yoshihiro KAWAMURA, Hiroki ATSUMI, Miyuki URANO, Toshiaki KANAMURA
  • Publication number: 20210298175
    Abstract: A method for producing a wired circuit board, the method including the steps of: a first step of providing an insulating layer having an opening penetrating in the thickness direction at one side surface in the thickness direction of the metal plate, a second step of providing a first barrier layer at one side surface in the thickness direction of the metal plate exposed from the opening by plating, a third step of providing a second barrier layer continuously at one side in the thickness direction of the first barrier layer and an inner surface of the insulating layer facing the opening, a fourth step of providing a conductor layer so as to contact the second barrier layer, and a fifth step of removing the metal plate by etching.
    Type: Application
    Filed: June 3, 2021
    Publication date: September 23, 2021
    Applicant: NITTO DENKO CORPORATION
    Inventors: Shusaku SHIBATA, Hayato TAKAKURA, Masaki ITO, Yoshihiro KAWAMURA, Shuichi WAKAKI
  • Patent number: 11125730
    Abstract: A flow passage unit has a column for used in a liquid chromatograph and a support body that supports the column. The column has: a porous stationary phase; a porous pressure adjusting part disposed at least at the flow-in end of the stationary phase, a liquid entering the flow-in end, the pressure adjusting part being harder than the stationary phase; and a covering part that covers the stationary phase and pressure adjusting part. The support body has a first plate and a second plate that are mutually joined, the support body forming a column holding part and a liquid flow passage, the column holding part holding the column between the first plate and the second plate, the liquid flow passage communicating with the column holding part. Pressure applied from the first plate and second plate to the pressure adjusting part is higher than pressure applied to the stationary phase.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: September 21, 2021
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Yoshimune Suzuki, Setsuo Ishibashi, Yoshihiro Taguchi, Satoshi Kawamura, Junko Ito, Hiroyoshi Minaguchi
  • Patent number: 11122676
    Abstract: A flexible wiring circuit board includes a first insulating layer, a wire disposed at one side in a thickness direction of the first insulating layer, a second insulating layer disposed at one side in the thickness direction of the wire, a shield layer disposed at one side in the thickness direction of the second insulating layer, and a third insulating layer disposed at one side in the thickness direction of the shield layer. The shield layer includes an electrically conductive layer and two barrier layers sandwiching the electrically conductive layer therebetween in the thickness direction. The electrically conductive layer is selected from a metal belonging to a group 11, and the fourth period and the fifth period in the periodic table, and the barrier layer is selected from a metal belonging to groups 4 to 10, and the fourth to the sixth periods in the periodic table.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: September 14, 2021
    Assignee: NITTO DENKO CORPORATION
    Inventors: Hayato Takakura, Yoshihiro Kawamura, Shuichi Wakaki, Shusaku Shibata
  • Publication number: 20210243900
    Abstract: An elongated wired circuit board including a plurality of wires arranged in parallel, wherein the plurality of wires each includes a first linear portion extending in a first linear direction, a second linear portion extending in a second linear direction, and a connection portion, the connection portion includes a first side, a second side, a third side, and a fourth side, length y1 and length S satisfy 0<y1<S, length y1 extending from the first corner portion reaching the first widthwise other end edge of the first linear portion, and length S extending from the first widthwise other end edge of the first linear portion of one wire, and the predetermined angle ? satisfies 0<?<1 deg.
    Type: Application
    Filed: April 22, 2021
    Publication date: August 5, 2021
    Applicant: NITTO DENKO CORPORATION
    Inventors: Shusaku SHIBATA, Takahiro TAKANO, Hayato TAKAKURA, Yoshihiro KAWAMURA, Shuichi WAKAKI
  • Patent number: 11081437
    Abstract: An imaging element mounting board for mounting an imaging element has a wire region including a first insulating layer, a metal wire disposed at one side in a thickness direction of the first insulating layer, and a second insulating layer disposed at one side in the thickness direction of the metal wire. An equivalent elastic modulus of the wire region is 5 GPa or more and 55 GPa or less.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: August 3, 2021
    Assignee: NITTO DENKO CORPORATION
    Inventors: Shusaku Shibata, Yoshihiro Kawamura, Hayato Takakura, Takahiro Takano, Shuichi Wakaki
  • Patent number: 11073571
    Abstract: A ground fault detection apparatus includes a capacitor, switches for switching between a V0 charge path including the battery and the capacitor, a Vcn charge path including the battery, the capacitor and negative-side insulation resistance as insulation resistance between negative side of the battery and ground, a Vcp charge path including the battery, the capacitor and positive-side insulation resistance as insulation resistance between positive side of the battery and ground, and a charge voltage measurement path including the capacitor and a measurement resistor, an offset voltage divider circuit that divides and offsets voltage produced at the measurement resistor, a control device that controls the switches and calculates the insulation resistance using output voltage of the offset voltage divider circuit as a measured value, based on V0 measured at the V0 charge path, Vcn measured at the Vcn charge path and Vcp measured at the Vcp charge path.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: July 27, 2021
    Assignee: YAZAKI CORPORATION
    Inventors: Hiroaki Takamatsu, Yoshihiro Kawamura, Hisashi Takahashi
  • Patent number: 11058002
    Abstract: A method for producing a wired circuit board, the method including the steps of: a first step of providing an insulating layer having an opening penetrating in the thickness direction at one side surface in the thickness direction of the metal plate, a second step of providing a first barrier layer at one side surface in the thickness direction of the metal plate exposed from the opening by plating, a third step of providing a second barrier layer continuously at one side in the thickness direction of the first barrier layer and an inner surface of the insulating layer facing the opening, a fourth step of providing a conductor layer so as to contact the second barrier layer, and a fifth step of removing the metal plate by etching.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: July 6, 2021
    Assignee: NITTO DENKO CORPORATION
    Inventors: Shusaku Shibata, Hayato Takakura, Masaki Ito, Yoshihiro Kawamura, Shuichi Wakaki
  • Patent number: 11047923
    Abstract: A ground fault detection device that is connected to an ungrounded battery, estimates an insulation resistance of the system provided with the battery, and detects a ground fault, includes a capacitor that operates as a flying capacitor, two C-contact switches that switch a V0 charging path including the battery and the capacitor, a Vcn charging path including the battery, a negative-side insulation resistance that is an insulation resistance between a negative side of the battery and ground, and the capacitor, a Vcp charging path including the battery, a positive-side insulation resistance insulation resistance that is an insulation resistance between a positive-side insulation resistance of the battery and ground, and the capacitor, and a measurement path that serves both a charge voltage measurement and a discharge of the first capacitor, and an optical MOS-FET capable of blocking charge inflow to and charge outflow from the capacitor.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: June 29, 2021
    Assignee: YAZAKI CORPORATION
    Inventor: Yoshihiro Kawamura
  • Publication number: 20210195070
    Abstract: An imaging element-mounting board includes a board area having a board disposed and a plurality of reinforcement portions disposed around the board area. The plurality of reinforcement portions are independent from each other.
    Type: Application
    Filed: October 2, 2018
    Publication date: June 24, 2021
    Applicant: NITTO DENKO CORPORATION
    Inventors: Shusaku SHIBATA, Hayato TAKAKURA, Yoshihiro KAWAMURA, Masaki ITO, Shuichi WAKAKI
  • Patent number: 11032913
    Abstract: An elongated wired circuit board including a plurality of wires arranged in parallel, wherein the plurality of wires each includes a first linear portion extending in a first linear direction, a second linear portion extending in a second linear direction, and a connection portion, the connection portion includes a first side, a second side, a third side, and a fourth side, length y1 and length S satisfy 0<y1<S, length y1 extending from the first corner portion reaching the first widthwise other end edge of the first linear portion, and length S extending from the first widthwise other end edge of the first linear portion of one wire, and the predetermined angle ? satisfies 0<?<1 deg.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: June 8, 2021
    Assignee: NITTO DENKO CORPORATION
    Inventors: Shusaku Shibata, Takahiro Takano, Hayato Takakura, Yoshihiro Kawamura, Shuichi Wakaki
  • Publication number: 20210148992
    Abstract: A ground fault detection device compatible with Y capacitors of various capacities without increasing the capacitance of a detection capacitor is provided. The ground fault detection device includes a first detection capacitor that operates as a flying capacitor, a second detection capacitor that operates as a flying capacitor, a control unit measures the charging voltage of the first detection capacitor and the second detection capacitor, a switching unit that switches between a state using a first measurement system in which the first detection capacitor is charged with the high voltage battery and the charging voltage of the first detection capacitor is measured by the control unit, and a state using a second measurement system in which the second detection capacitor is charged with the high voltage battery and the charging voltage of the second detection capacitor is measured by the control unit.
    Type: Application
    Filed: October 14, 2020
    Publication date: May 20, 2021
    Applicant: Yazaki Corporation
    Inventor: Yoshihiro KAWAMURA
  • Publication number: 20210148993
    Abstract: A ground fault detection device includes: a capacitor operating as a flying capacitor; a first switching unit for switching between a state in which a positive electrode side of a battery and a first electrode plate of the capacitor are connected in series via a resistance, and a state in which the first electrode plate of the capacitor is connected to the ground via a measurement resistance; a second switching unit for switching between a state in which a negative electrode side of a high-voltage battery and a second electrode plate of a detection capacitor are connected in series via a resistance, and a state in which the second electrode plate of the detection capacitor is connected to the ground via the resistance; a control unit for controlling the first switching unit and the second switching unit; and an offset voltage divider circuit that divides and offsets the voltage generated in the measurement resistance.
    Type: Application
    Filed: November 3, 2020
    Publication date: May 20, 2021
    Applicant: Yazaki Corporation
    Inventors: Hiroaki TAKAMATSU, Yoshihiro KAWAMURA, Ryosuke ARIGAYA
  • Publication number: 20210084750
    Abstract: A wiring circuit board sequentially includes a conductive layer, an insulating layer, and a shield layer toward one side in a thickness direction. The insulating layer covers the conductive layer and has an insulating opening portion exposing a part of a one-side surface in the thickness direction of the conductive layer, and the shield layer has a recessed portion disposed at the inside of the insulating opening portion and recessed toward the other side in the thickness direction so as to be in contact with the conductive layer. The shield layer sequentially includes an adhesive layer and a main body layer toward one side in the thickness direction. A ratio (Tb/Ta) of a thickness Tb of the main body layer to a thickness Ta of the adhesive layer is 4 or more.
    Type: Application
    Filed: September 5, 2018
    Publication date: March 18, 2021
    Applicant: NITTO DENKO CORPORATION
    Inventors: Yoshihiro KAWAMURA, Shusaku SHIBATA, Hayato TAKAKURA, Masaki ITO
  • Publication number: 20210072324
    Abstract: In a ground fault detection apparatus, a first charge voltage of a detection capacitor measured with a positive electrode side of a high-voltage battery connected in series with a positive electrode side end of the detection capacitor and a negative electrode side end of the detection capacitor grounded, is compared with a second charge voltage of the detection capacitor measured with the positive electrode side end of the detection capacitor grounded and the negative electrode side of the high-voltage battery connected in series with the negative electrode side end of the detection capacitor. When the first charge voltage is smaller and degree of smallness is greater than a predetermined reference, it is determined that positive electrode side insulation resistance is decreased. When the second charge voltage is smaller and degree of smallness is greater than a predetermined reference, it is determined that negative electrode side insulation resistance is decreased.
    Type: Application
    Filed: August 13, 2020
    Publication date: March 11, 2021
    Applicant: Yazaki Corporation
    Inventor: Yoshihiro KAWAMURA
  • Patent number: 10890627
    Abstract: A ground fault detection apparatus is configured to be connected to an ungrounded battery for supplying power to a load via a step-up circuit and to detect ground fault by calculating an insulation resistance of a system provided with the battery, and includes a capacitor that operates as a flying capacitor, a set of switches that switch between a first voltage measurement path including the battery and the capacitor, a second voltage measurement path including the battery, the capacitor and a negative-electrode-side insulation resistor as an insulation resistor between a negative-electrode side of the battery and a ground, a third voltage measurement path including the battery, the capacitor and a positive-electrode-side insulation resistor as an insulation resistor between a positive-electrode side of the battery and the ground, and a capacitor charge voltage measurement path, and a pair of Form C contact relays that can reverse connection direction of the capacitor.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: January 12, 2021
    Assignee: YAZAKI CORPORATION
    Inventor: Yoshihiro Kawamura
  • Patent number: 10877104
    Abstract: A ground fault detection apparatus includes a control unit, a detection capacitor, a positive-electrode-side first resistor connected to positive-electrode side of a high-voltage battery, a negative-electrode-side first resistor connected to negative-electrode side of the high-voltage battery, a positive-electrode-side second resistor where one end is grounded and voltage of another end is measured by the control unit, a negative-electrode-side second resistor having one end grounded, a positive-electrode-side C contact switch that switches connection destination of one end of the detection capacitor between a path including the positive-electrode-side first resistor and a path including the positive-electrode-side second resistor based on instruction from the control unit, a negative-electrode-side C contact switch that switches connection destination of another end of the detection capacitor between a path including the negative-electrode-side first resistor and a path including the negative-electrode-side
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: December 29, 2020
    Assignee: YAZAKI CORPORATION
    Inventor: Yoshihiro Kawamura
  • Publication number: 20200386827
    Abstract: A ground fault detection apparatus includes a capacitor, switches for switching between a V0 charge path including the battery and the capacitor, a Vcn charge path including the battery, the capacitor and negative-side insulation resistance as insulation resistance between negative side of the battery and ground, a Vcp charge path including the battery, the capacitor and positive-side insulation resistance as insulation resistance between positive side of the battery and ground, and a charge voltage measurement path including the capacitor and a measurement resistor, an offset voltage divider circuit that divides and offsets voltage produced at the measurement resistor, a control device that controls the switches and calculates the insulation resistance using output voltage of the offset voltage divider circuit as a measured value, based on V0 measured at the V0 charge path, Vcn measured at the Vcn charge path and Vcp measured at the Vcp charge path.
    Type: Application
    Filed: May 1, 2020
    Publication date: December 10, 2020
    Applicant: Yazaki Corporation
    Inventors: Hiroaki TAKAMATSU, Yoshihiro KAWAMURA, Hisashi TAKAHASHI