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).

  • Near infrared ray absorbent composition, near infrared ray cut filter, solid image pickup element, and camera module
    Patent number: 10215898
    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: Grant
    Filed: April 26, 2017
    Date of Patent: February 26, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Kouitsu Sasaki, Takashi Kawashima, Seiichi Hitomi, Yasuharu Shiraishi
  • Electrically-driven compressor for vehicle
    Patent number: 10202022
    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: Grant
    Filed: October 5, 2016
    Date of Patent: February 12, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takashi Kawashima, Yoshiki Nagata
  • Motor-driven compressor
    Patent number: 10190587
    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: Grant
    Filed: August 25, 2016
    Date of Patent: January 29, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Shinichi Kawamura, Takashi Kawashima
  • Near infrared radiation-absorbing composition, near infrared radiation cut-off filter and production method therefor, and camera module and production method therefor
    Patent number: 10184052
    Abstract: An object of the present invention is to provide a near infrared radiation-absorbing composition having favorable shielding properties in a near infrared range when used to produce cured films, a near infrared radiation cut-off filter and a production method therefor, and a camera module and a production method therefor. The near infrared radiation-absorbing composition including a copper complex formed by reacting a compound (A) having two or more coordinating atoms that form bonds using unshared electron pairs with a copper component.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: January 22, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Seiichi Hitomi, Takashi Kawashima, Kouitsu Sasaki
  • Curable composition and color filter
    Patent number: 10175573
    Abstract: Provided is a colored curable composition having a good chemical resistance, and capable of forming a good colored layer pattern, the colored curable composition including an epoxy group-containing compound, and a phthalocyanine dye having a functional group capable of forming a covalent bond by a reaction with the epoxy group under heating.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: January 8, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Suguru Samejima, Takashi Kawashima, Yousuke Murakami
  • NEAR INFRARED ABSORBING COMPOSITION, NEAR INFRARED CUT FILTER, METHOD OF MANUFACTURING NEAR INFRARED CUT FILTER, SOLID IMAGE PICKUP ELEMENT, CAMERA MODULE, AND IMAGE DISPLAY DEVICE
    Publication number: 20180292586
    Abstract: Provided are a near infrared absorbing composition with which a cured film having excellent solvent resistance and thermal shock resistance can be manufactured, a near infrared cut filter, a method of manufacturing a near infrared cut filter, a solid image pickup element, a camera module, and an image display device. The near infrared absorbing composition includes: a resin A that satisfies the following condition a1; an infrared absorber B; and a solvent D. At least the resin A has a crosslinking group, or the near infrared absorbing composition further includes a compound C having a crosslinking group that is different from the resin A. condition a1: in a case where the resin A does not have a crosslinking group, a glass transition temperature of the resin A measured by differential scanning calorimetry is 0° C. to 100° C.
    Type: Application
    Filed: June 14, 2018
    Publication date: October 11, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Seiichi HITOMI, Takashi KAWASHIMA, Keisuke ARIMURA, Takahiro OKAWARA
  • MOTOR-DRIVEN COMPRESSOR FOR A VEHICLE
    Publication number: 20180287543
    Abstract: A motor-driven compressor for a vehicle includes a housing, a compression unit, a motor, and an inverter device. The inverter device includes an inverter circuit, a capacitor, a current sensor, a determination means configured to control switching elements in response to the current sensor not detecting a flow of current when the motor stops operating and configured to determine whether or not the current sensor detects a flow of current when controlling the switching elements, and a discharge starting means configured to start discharging the capacitor when the determination means determines that the flow of current has not been detected.
    Type: Application
    Filed: March 26, 2018
    Publication date: October 4, 2018
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takashi KAWASHIMA, Yoshiki NAGATA, Satoshi OKADA, Fumihiro KAGAWA, Kazuki NAJIMA, Hiroshi FUKASAKU
  • Motor-driven compressor
    Patent number: 10087935
    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: Grant
    Filed: August 25, 2016
    Date of Patent: October 2, 2018
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Akimitsu Ichihara, Shinichi Kawamura, Takashi Kawashima
  • NEAR-INFRARED CUT FILTER, METHOD FOR PRODUCING NEAR-INFRARED CUT FILTER, AND SOLID-STATE IMAGING ELEMENT
    Publication number: 20180188428
    Abstract: A near-infrared cut filter has a first infrared absorbing layer including an infrared absorber A, a second infrared absorbing layer including an infrared absorber C, and a resin layer disposed between the first infrared absorbing layer and the second infrared absorbing layer.
    Type: Application
    Filed: February 20, 2018
    Publication date: July 5, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Keisuke ARIMURA, Kazuto SHIMADA, Takahiro OKAWARA, Takashi KAWASHIMA, Hidenori TAKAHASHI
  • Identification information supervising method, portal information providing apparatus, and IC card
    Patent number: 10013696
    Abstract: An identification information centralizing method capable of receiving services provided by a plurality of corporations by using a single item of identification information. Centralized ID information (162) for identifying a customer is assigned by a centralizing corporation. Individual ID information (168) which is uniquely assigned to identify the customer by a plurality of corporations which provide services to a pre-registered customer is registered in a database (160) in such a manner as to be associated with the centralized ID information (162), so that provision of services by a plurality of corporations is made possible by using the single item of centralized ID information (162).
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: July 3, 2018
    Assignee: SONY CORPORATION
    Inventors: Takashi Kawashima, Kotaro Hagiwara, Hirofumi Hayaashi, Shinya Goishi
  • NEAR INFRARED ABSORBING COMPOSITION, FILM, NEAR INFRARED CUT FILTER, AND SOLID IMAGE PICKUP ELEMENT
    Publication number: 20180175090
    Abstract: A near infrared absorbing composition includes: a copper compound; a radical trapping agent; and a resin which generates a radical at 180° C. or higher.
    Type: Application
    Filed: February 20, 2018
    Publication date: June 21, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Takahiro OKAWARA, Takashi KAWASHIMA, Kazuto SHIMADA, Keisuke ARIMURA, Kouitsu SASAKI
  • Motor driven compressor
    Patent number: 9995302
    Abstract: A motor-driven compressor includes an electric motor, a drive circuit, a modulation method controller, a temperature measuring section, a high-temperature (HT) stop controller, and a high-temperature (HT) stop temperature setting section. The high-temperature (HT) stop controller stops the electric motor when the temperature measured by the temperature measuring section is higher than or equal to a predetermined high-temperature (HT) stop temperature. When the modulation method is the three-phase modulation, the HT stop temperature setting section sets the HT stop temperature to a three-phase high-temperature (HT) stop temperature. When the modulation method is the two-phase modulation, the HT stop temperature setting section sets the HT stop temperature to a two-phase high-temperature (HT) stop temperature, which is higher than the three-phase HT stop temperature.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: June 12, 2018
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Junya Yano, Tsuyoshi Yamaguchi, Takashi Kawashima, Yoshiki Nagata
  • Near infrared ray absorbent composition, near infrared ray cut filter, manufacturing method of near infrared ray cut filter, solid image pickup element, camera module
    Patent number: 9958576
    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: Grant
    Filed: December 23, 2016
    Date of Patent: May 1, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Takashi Kawashima, Keisuke Arimura
  • IN-VEHICLE INVERTER DRIVING DEVICE AND IN-VEHICLE FLUID MACHINE
    Publication number: 20180102723
    Abstract: An in-vehicle inverter driving device is used to perform PWM control of an inverter circuit that drives an electric motor. The electric motor includes a rotor having a permanent magnet and a stator about which three-phase coils are wound. The in-vehicle inverter driving device includes a bootstrap circuit, which uses a capacitor to turn ON upper arm switching elements of the inverter circuit. The in-vehicle inverter driving circuit includes a PWM control section that controls the inverter circuit by a lower-arm-fixing two-phase modulation method. The PWM control section performs shift correction and dead-time correction in the lower-arm-fixing two-phase modulation method.
    Type: Application
    Filed: October 4, 2017
    Publication date: April 12, 2018
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takashi KAWASHIMA, Tomohiro TAKAMI, Kazuki NAJIMA, Yoshiki NAGATA
  • NEAR INFRARED ABSORBING COMPOSITION, NEAR INFRARED CUT FILTER, METHOD OF MANUFACTURING NEAR INFRARED CUT FILTER, DEVICE, METHOD OF MANUFACTURING COPPER-CONTAINING POLYMER, AND COPPER-CONTAINING POLYMER
    Publication number: 20180094086
    Abstract: The near infrared absorbing composition includes: a copper-containing polymer having a copper complex site at a polymer side chain; and a solvent, in which the copper complex site includes a site multidentate-coordinated to a copper atom and at least one selected from the group consisting of a site monodentate-coordinated to a copper atom and a counter ion to a copper complex skeleton, and a polymer main chain and a copper atom at the copper complex site are bonded to each other through the site monodentate-coordinated to a copper atom or the counter ion.
    Type: Application
    Filed: November 22, 2017
    Publication date: April 5, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Kouitsu SASAKI, Takashi KAWASHIMA, Seiichi HITOMI
  • BLAST FAN
    Publication number: 20180087440
    Abstract: A blast fan includes: a tubular frame having a first opening and a second opening to pass airflow through between the first opening and the second opening. The first opening has a first reverse tapered portion expanding from inside to outside of the frame, and the first reverse tapered portion has a surface having first convex portions projecting to the inside of the frame.
    Type: Application
    Filed: September 26, 2017
    Publication date: March 29, 2018
    Inventors: Yoshihisa YAMAZAKI, Satoshi FUJIMAKI, Takashi KAWASHIMA, Souma ARAKI
  • Motor-driven compressor
    Patent number: 9926931
    Abstract: A motor-driven compressor is provided with a motor including a rotor, a housing including an inlet through which low-pressure refrigerant serving as a low-pressure fluid is drawn in, a compression unit that compresses the low-pressure refrigerant and discharges compressed high-pressure fluid, an inverter that drives the motor, and a controller that controls the inverter. If the rotor is activating in a reverse direction that is opposite to a forward direction when activating the motor, the controller obtains a position of a d-axis of the rotor and controls the inverter so that current flows to the obtained d-axis and so that frequency of current flowing to the motor decreases as time elapses.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: March 27, 2018
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Shinichi Kawamura, Akimitsu Ichihara, Takashi Kawashima
  • POWER CONVERSION APPARATUS PROVIDED WITH SEMICONDUCTOR MODULE AND ELECTRONIC COMPONENT PRESSURIZED BY PRESSURIZING MEMBER
    Publication number: 20180070480
    Abstract: A power conversion apparatus includes: a semiconductor module, an electronic component, a plurality of cooling pipes and a casing that accommodates the semiconductor module, the electronic component and the cooling pipes. An abutting surface is provided at a part of the casing, in which the electronic component comes into contact with the abutting surface. A pressurizing member pressurizes the semiconductor module in a first direction extending from the semiconductor module to the electronic component. The electronic component includes a part body and a wing portion and the wing portion protrudes from the part body at least either one side of both sides thereof with respect to a second direction perpendicular to the first direction, and comes into contact with the abutting surface from a semiconductor module side with respect to the first direction.
    Type: Application
    Filed: September 5, 2017
    Publication date: March 8, 2018
    Applicants: DENSO CORPORATION, TOKIN CORPORATION
    Inventors: Naoki HIRASAWA, Ryota TANABE, Takashi KAWASHIMA, Takashi YANBE, Masahiro KONDOU
  • Composition, cured film, color filter, laminate, and pigment dispersant
    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
  • Socket for electronic device testing apparatus
    Patent number: D819581
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: June 5, 2018
    Assignee: ADVANTEST CORPORATION
    Inventors: Takeshi Okushi, Mitsunori Aizawa, Masanori Nagashima, Takashi Kawashima