Patents by Inventor Takashi Kawashima

Takashi Kawashima 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: 9879108
    Abstract: The composition includes (A) a pigment; and (B) a polymer having (b-1) a bulky amine moiety, (b-2) an acid group, and (b-3) a constituent unit derived from a macromonomer having a weight average molecular weight of 1000 to 50000, in which the bulky amine moiety (b-1) has a nitrogen atom, carbon atoms X1 bonded with the nitrogen atom, and carbon atoms Y1 bonded with the carbon atoms X1, and a total carbon number of the carbon atoms X1 and the carbon atoms Y1 is 7 or more.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: January 30, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Hiroaki Idei, Toshihito Kuge, Takashi Kawashima
  • Patent number: 9826129
    Abstract: Provided are a near-infrared-ray-absorbing composition having strong near-infrared shielding properties when a cured film is produced, a near-infrared-ray cut filter, a manufacturing method therefor, a camera module, and a manufacturing method therefor. The near-infrared-ray-absorbing composition includes a copper complex obtained by reacting a compound (A) having at least two coordination sites with a copper component.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: November 21, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Takeshi Inasaki, Takashi Kawashima, Seiichi Hitomi, Kouitsu Sasaki
  • Patent number: 9812744
    Abstract: The battery pack includes battery cells, bus bars provided for electrical connection among the battery cells, a fluid device that passes a heat transfer medium for exchanging heat with the bus bars or the battery cells, and a control device that obtains data on the bus bars or the battery cells and controls the fluid device based on the obtained data.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: November 7, 2017
    Assignee: DENSO CORPORATION
    Inventors: Hiroyoshi Yamamoto, Yoshimitsu Inoue, Takashi Kawashima
  • Publication number: 20170299008
    Abstract: The present invention relates to a vibration damping device including an outer attachment member (10) connected to one of a vibration generating part and a vibration receiving part, an inner attachment member (20) connected to the other, and an elastic body (30) configured to connect the outer attachment member (10) and the inner attachment member (20), wherein the outer attachment member (10) is formed in a cylindrical shape, the inner attachment member (20) includes a plate-shaped rigid member (21) disposed in the outer attachment member (10) and an interior member (28) located in the outer attachment member (10), fixed to the rigid member (21), and formed of a synthetic resin material, and, at protruding portions (22, 23) of the rigid member (21) which protrude outward from the outer attachment member (10) in an axial direction along a central axis (O) of the outer attachment member (10), mounting holes (22a, 23a) which are open in a diameter direction orthogonal to the axial direction and have a fastening
    Type: Application
    Filed: September 2, 2015
    Publication date: October 19, 2017
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Shunji SATOU, Takashi KAWASHIMA
  • Publication number: 20170284409
    Abstract: The control section controls the electric motor to be driven such that the number of revolutions becomes equal to the target number of revolutions. If the control section sets the target number of revolutions to a number of revolutions of the electric motor requested by another control section, the control section changes the number of revolutions of the electric motor at an increase rate lower than or equal to the upper limit value of the increase rate or at a decrease rate lower than or equal to the upper limit value of the decrease rate. If the control section sets the target number of revolutions to a number-of-revolutions limit value, which is determined based on the voltage of a vehicle battery, the control section is able to decrease the number of revolutions of the electric motor at a decrease rate exceeding the upper limit value.
    Type: Application
    Filed: March 24, 2017
    Publication date: October 5, 2017
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takashi KAWASHIMA, Yoshiki NAGATA, Kazuki NAJIMA
  • Publication number: 20170279393
    Abstract: An inverter controller is used to control an inverter circuit that drives an electric motor including a rotor and a stator. The inverter controller includes a voltage detector configured to detect input voltage, a current detector configured to detect motor current, an instruction value calculation unit configured to calculate an instruction value based on an external instruction value and a detection result of the current detector, a correction unit configured to calculate a corrected instruction value by correcting the instruction value in accordance with the input voltage, a PWM control unit configured to control the motor current based on the corrected instruction value and the input voltage, and a position estimation unit configured to estimate a rotation position of the rotor based on the instruction value and the detection result of the current detector.
    Type: Application
    Filed: March 24, 2017
    Publication date: September 28, 2017
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takashi KAWASHIMA, Yoshiki NAGATA, Masahiko HIRANO
  • Patent number: 9773759
    Abstract: An electric power converter includes a semiconductor module, an electronic component, a plurality of cooling tubes, a case, a main pressure member for pressing a stacked semiconductor section in a stacking direction, and a sub-pressure member for pressing a stacked component section in the stacking direction. The stacked semiconductor section and the stacked component section are stacked in line. A pressing force of the main pressure member is greater than a pressure pressing force of the sub-pressure member. The main pressure member is disposed at an end portion of the stacked component section far from the stacked semiconductor section. A supporting portion that supports the stacked semiconductor section from the stacked component section side is disposed in the case so as to prevent the pressing force of the main pressure member from acting on the stacked component section.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: September 26, 2017
    Assignee: DENSO CORPORATION
    Inventors: Naoki Hirasawa, Ryota Tanabe, Hiromi Ichijo, Takashi Kawashima
  • Publication number: 20170227690
    Abstract: Provided are a near infrared ray absorbent composition which can form a cured film having excellent near infrared ray shielding properties, a near infrared ray cut filter, a manufacturing method of a near infrared ray cut filter, a solid image pickup element, and a camera module. The near infrared ray absorbent composition includes a copper complex that is other than a copper phthalocyanine complex and has a maximum absorption wavelength in a wavelength range of 700 to 1,200 nm and in which a molar light absorption coefficient at the maximum absorption wavelength is greater than or equal to 100 (L/mol·cm).
    Type: Application
    Filed: April 26, 2017
    Publication date: August 10, 2017
    Applicant: FUJIFILM Corporation
    Inventors: Kouitsu SASAKI, Takashi KAWASHIMA, Seiichi HITOMI, Yasuharu SHIRAISHI
  • Patent number: 9698712
    Abstract: An inverter apparatus includes an inverter circuit, a capacitor, and a control unit. In the first control mode, the control unit shifts a phase of at least one of PWM signals of three phases such that a time period during which polarities of output voltages of three phases are the same is shorter in the first control mode than the time period in the second control mode; and controls the inverter circuit so as to supply a direct current to the three-phase AC motor as a d-axis current by outputting the PWM signals of three phases, each having a phase after the phase shift processing. In the second control mode, the control unit controls the inverter circuit so as to supply an alternating current to the three-phase AC motor by outputting the PWM signals of three phases, each having a phase before the phase shift processing.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: July 4, 2017
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yoshiki Nagata, Takashi Kawashima
  • Patent number: 9698186
    Abstract: A near-infrared-absorbing composition includes a copper compound and a compound having a partial structure represented by Formula (1) described below and the content of the copper compound is in a range of 3×10?3 mol to 1 mol in relation to 1 g of the compound having the partial structure represented by Formula (1) described below, in Formula (1), R1 represents a hydrogen atom or an organic group.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: July 4, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Takashi Kawashima, Hidenori Takahashi, Toshihide Ezoe
  • Publication number: 20170141082
    Abstract: An electric power converter includes a semiconductor module, an electronic component, a plurality of cooling tubes, a case, a main pressure member for pressing a stacked semiconductor section in a stacking direction, and a sub-pressure member for pressing a stacked component section in the stacking direction. The stacked semiconductor section and the stacked component section are stacked in line. A pressing force of the main pressure member is greater than a pressure pressing force of the sub-pressure member. The main pressure member is disposed at an end portion of the stacked component section far from the stacked semiconductor section. A supporting portion that supports the stacked semiconductor section from the stacked component section side is disposed in the case so as to prevent the pressing force of the main pressure member from acting on the stacked component section.
    Type: Application
    Filed: November 16, 2016
    Publication date: May 18, 2017
    Applicant: DENSO CORPORATION
    Inventors: Naoki HIRASAWA, Ryota TANABE, Hiromi ICHIJO, Takashi KAWASHIMA
  • Publication number: 20170102483
    Abstract: Provided are a near infrared ray absorbent composition which can form a cured film having excellent heat resistance while maintaining high near infrared ray shielding properties, and a near infrared ray cut filter, a manufacturing method of a near infrared ray cut filter, a solid image pickup element, and a camera module using the near infrared ray absorbent composition. The near infrared ray absorbent composition contains a compound having a partial structure represented by M-X, and a near infrared ray absorbent compound, and a content of the compound having a partial structure represented by M-X is greater than or equal to 15 mass % with respect to a total solid content of the near infrared ray absorbent composition.
    Type: Application
    Filed: December 23, 2016
    Publication date: April 13, 2017
    Applicant: FUJIFILM Corporation
    Inventors: Takashi KAWASHIMA, Keisuke ARIMURA
  • Patent number: 9618666
    Abstract: An object of the present invention is to provide a near-infrared-absorbing composition capable of forming a cured film having excellent heat resistance while maintaining strong near-infrared shielding properties when a cured film is produced. The near-infrared-absorbing composition of the present invention includes a copper complex obtained by reacting two or more kinds of sulfonic acids represented by General Formula (I) described below or salts thereof with a copper component and a solvent.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: April 11, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Takashi Kawashima, Seiichi Hitomi, Hidenori Takahashi, Yuki Nara, Seongmu Bak
  • Patent number: 9620156
    Abstract: A magnetic head device with high joint strength in an arm and a suspension is provided. The magnetic head device comprises an arm, a suspension overlapping with a leading end part of the arm, a slider located at a leading end part of the suspension, and a joint part that is located between the leading end part of the arm and the suspension and that joins the arm and the suspension, while the joint part includes Sn.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: April 11, 2017
    Assignee: TDK CORPORATION
    Inventors: Katsuhiko Igarashi, Makoto Orikasa, Takashi Kawashima, Hisayuki Abe
  • Publication number: 20170096049
    Abstract: When the magnitude of a motor current Iu is smaller than a threshold value at a timing when a polarity of the motor current Iu is expected to be reversed after the elapse of one control cycle, a control device sets a correction amount of a width of a pulse generated by PWM control at a correction amount +?. When the magnitude of the motor current is greater than the threshold value at the timing, the control device sets the correction amount of the width of the pulse generated by the PWM control at zero or a value ? smaller than the correction amount +?. As a result, an error of a dead time period in inverter control can be reduced.
    Type: Application
    Filed: October 5, 2016
    Publication date: April 6, 2017
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takashi KAWASHIMA, Yoshiki NAGATA
  • Publication number: 20170058899
    Abstract: A motor-driven compressor includes a three-phase motor including a rotor, a housing, a compression unit, a drive circuit, and a controller. The drive circuit includes u-phase upper and lower arm switching elements, v-phase upper and lower arm switching elements, and w-phase upper and lower arm switching elements. The controller performs a deceleration control in response to the rotor being rotating in a direction opposite to the forward direction. The controller controls the drive circuit in a switching control mode that includes a first mode, in which one or more switching elements of the upper and lower arm switching elements of the three phases are activated while the remaining switching elements are deactivated, and a second mode, which differs from the first mode in a combination of the activated and deactivated switching elements.
    Type: Application
    Filed: August 25, 2016
    Publication date: March 2, 2017
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Akimitsu ICHIHARA, Shinichi KAWAMURA, Takashi KAWASHIMA
  • Publication number: 20170058898
    Abstract: A motor-driven compressor includes an electric motor including a rotor, a housing, a compression unit, a drive circuit, and a controller. The controller includes a deceleration controller that performs a deceleration control, which decelerates the rotor, during a first period in response to the rotor being rotating in a direction opposite to the forward direction, and a continuation controller that performs a continuation control, which continues the rotation of the rotor, during a second period that is longer than the first period after the deceleration control is performed. A fluctuation difference of a rotational frequency of the rotor during the continuation control is less than a deceleration rotational frequency difference.
    Type: Application
    Filed: August 25, 2016
    Publication date: March 2, 2017
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Shinichi KAWAMURA, Takashi KAWASHIMA
  • Patent number: 9514772
    Abstract: A magnetic head device which has strong joint strength in an arm and a suspension and high accuracy of a size and a shape is provided. The magnetic head device comprises an arm, a suspension overlapping with a leading end part of the arm, a slider located at a leading end part of the suspension, and a first joint part that is placed between the leading end part of the arm and the suspension and that joins the arm and the suspension, the first joint part including Sn or a resin adhesive.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: December 6, 2016
    Assignee: TDK CORPORATION
    Inventors: Takashi Kawashima, Toru Mizuno, Katsuhiko Igarashi, Makoto Orikasa, Hidetoshi Suzuki
  • Patent number: D788722
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: June 6, 2017
    Assignee: ADVANTEST CORPORATION
    Inventors: Takeshi Okushi, Mitsunori Aizawa, Masanori Nagashima, Takashi Kawashima
  • Patent number: D796978
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: September 12, 2017
    Assignee: ADVANTEST CORPORATION
    Inventors: Takashi Kawashima, Shintaro Takaki