Patents by Inventor Takahiko Kobayashi

Takahiko Kobayashi 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: 11940741
    Abstract: An image forming apparatus includes: an image carrier that extends in a first direction; a light emitter that includes a substrate that extends in the first direction, and multiple light-emitting devices that are disposed on the substrate and emit light to the image carrier; a positioning portion that is disposed between the substrate and the image carrier, and that fixes a position of the light emitter with respect to the image carrier in at least one direction perpendicular to a light emission direction; and an adjuster that is located to overlap the positioning portion when viewed in the first direction, and that adjusts a position of the light emitter in the light emission direction.
    Type: Grant
    Filed: December 23, 2021
    Date of Patent: March 26, 2024
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Kenta Tonosu, Yosuke Kasuya, Takahiko Kobayashi
  • Patent number: 11937007
    Abstract: An imaging device having a motion detecting function and an image processing function is provided. The imaging device can detect a difference between a reference frame image and a comparative frame image, and can switch from a motion detecting mode to a normal image capturing mode when a significant difference is detected. A low-frame-rate operation in the motion detecting mode can reduce power consumption. Moreover, the imaging device has an image recognition function in combination with the motion detecting function, so that switching from the motion detecting mode to the normal image capturing mode can be performed when a particular image is recognized.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: March 19, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiroki Inoue, Seiichi Yoneda, Yusuke Negoro, Takahiko Ishizu, Hidetomo Kobayashi
  • Patent number: 11921438
    Abstract: A light-emitting device includes: a first light-emitting unit that extends in one direction and that has a first emission surface that emits light located along the one direction; a second light-emitting unit that is located in the one direction with respect to the first light-emitting unit, that extends in the one direction, and that has a second emission surface that emits light located along the one direction; a cleaning unit that is capable of moving in the one direction and an opposite direction that is opposite to the one direction to clean the first emission surface; a transmission part that extends from the cleaning unit in the one direction and that transmits a moving force for moving the cleaning unit to the cleaning unit; and an extending part that extends from the transmission part in the one direction to elongate the transmission part.
    Type: Grant
    Filed: September 7, 2022
    Date of Patent: March 5, 2024
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Takahiko Kobayashi, Yosuke Kasuya
  • Patent number: 11863101
    Abstract: A driving apparatus includes: an inverter unit generating a three-phase alternating-current voltage from a direct-current voltage in accordance with a drive signal based on a voltage command and outputting the three-phase alternating-current voltage to a permanent-magnet motor, the permanent-magnet motor including a permanent magnet; a current detection unit detecting a motor current flowing through the permanent-magnet motor; and a control unit generating the voltage command to control an operation of the inverter unit and estimating a temperature of the permanent magnet to perform a protection operation on the inverter unit on the basis of the motor current and an overcurrent protection threshold.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: January 2, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventor: Takahiko Kobayashi
  • Patent number: 11822280
    Abstract: A light-emitting device including: a light-emitting unit extending in one direction; an emission surface that is provided at the light-emitting unit along the one direction, and emits light in a light-emitting direction, the light-emitting direction and the one direction crossing each other; a base that is located in a direction opposite to the light-emitting direction of the light-emitting unit, and on which the light-emitting unit is removably provided; and a cleaning mechanism that includes a cleaning unit cleaning the emission surface by moving along the one direction, the cleaning mechanism allowing the light-emitting unit to be removed from the base while at least a portion of the cleaning mechanism remains on an object other than the light-emitting unit.
    Type: Grant
    Filed: August 26, 2022
    Date of Patent: November 21, 2023
    Assignee: FUJIFILM Business Innovation Corp.
    Inventor: Takahiko Kobayashi
  • Patent number: 11796935
    Abstract: An exposure device includes: at least one light emitter that includes a substrate and a light-emitting device disposed on the substrate; and a position adjuster that includes a contact member having an outer periphery in contact with the substrate, a support member that rotatably supports the contact member, and at least one mover that is in contact with the support member to move the support member in a light emission direction of the light emitter.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: October 24, 2023
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Kenta Tonosu, Yosuke Kasuya, Takahiko Kobayashi
  • Publication number: 20230092110
    Abstract: A power converter for converting a voltage of direct-current power output from a direct-current power supply, the power converter including: a printed circuit board; a reactor being configured with a conductor pattern of the printed circuit board; a semiconductor element that is connected to another end of the reactor and performs switching for storing electrical energy in the reactor so as to boost the voltage of the direct-current power from a first voltage to a second voltage; a capacitor that smooths the direct-current power boosted to the second voltage; a diode that is connected to the another end of the reactor and supplies the direct-current power boosted to the second voltage to the capacitor; and a cooler, wherein the reactor, the semiconductor element, and the diode are included in a module in a single package, and the module is cooled by the cooler.
    Type: Application
    Filed: April 25, 2020
    Publication date: March 23, 2023
    Inventors: Satoru ICHIKI, Koichi ARISAWA, Kazunori HATAKEYAMA, Takahiko KOBAYASHI
  • Publication number: 20230067966
    Abstract: An image forming apparatus includes: a rotatable image carrier on an outer circumferential surface of which an image is to be formed and that is movable in a rotation axis direction between an image forming position and a maintenance position; a light-emitting unit including a base member extending in the rotation axis direction of the image carrier, and plural light-emitting devices provided on the base member and configured to apply light to the outer circumferential surface of the image carrier, the light-emitting unit being configured to move together with the image carrier in the rotation axis direction; and a supporting unit configured to move together with the image carrier in the rotation axis direction and to support the light-emitting unit when the image carrier and the light-emitting unit are at the maintenance position and the light-emitting unit is disabled from being positioned with respect to the image carrier.
    Type: Application
    Filed: February 1, 2022
    Publication date: March 2, 2023
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Kenta Tonosu, Yosuke Kasuya, Takahiko Kobayashi
  • Publication number: 20230069539
    Abstract: An image forming apparatus includes: an image carrier that extends in a first direction; a light emitter that includes a substrate that extends in the first direction, and multiple light-emitting devices that are disposed on the substrate and emit light to the image carrier; a positioning portion that is disposed between the substrate and the image carrier, and that fixes a position of the light emitter with respect to the image carrier in at least one direction perpendicular to a light emission direction; and an adjuster that is located to overlap the positioning portion when viewed in the first direction, and that adjusts a position of the light emitter in the light emission direction.
    Type: Application
    Filed: December 23, 2021
    Publication date: March 2, 2023
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Kenta TONOSU, Yosuke KASUYA, Takahiko KOBAYASHI
  • Publication number: 20230068477
    Abstract: An image forming apparatus includes a first image forming unit including a rotatable first image carrier and a first light-emitting unit, the first light-emitting unit including a first base member and plural first light-emitting devices, the first base member extending in an axial direction of the first image carrier, the plural first light-emitting devices being provided on the first base member and being configured to apply light to an outer circumferential surface of the first image carrier; and a second image forming unit including a rotatable second image carrier and a second light-emitting unit, the second light-emitting unit including a second base member and plural second light-emitting devices, the second base member extending in an axial direction of the second image carrier, the plural second light-emitting devices being provided on the second base member and being configured to apply light to an outer circumferential surface of the second image carrier.
    Type: Application
    Filed: January 31, 2022
    Publication date: March 2, 2023
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Kenta TONOSU, Yosuke KASUYA, Takahiko KOBAYASHI
  • Publication number: 20230062126
    Abstract: An exposure device includes: at least one light emitter that includes a substrate and a light-emitting device disposed on the substrate; and a position adjuster that includes a contact member having an outer periphery in contact with the substrate, a support member that rotatably supports the contact member, and at least one mover that is in contact with the support member to move the support member in a light emission direction of the light emitter.
    Type: Application
    Filed: December 16, 2021
    Publication date: March 2, 2023
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Kenta TONOSU, Yosuke KASUYA, Takahiko KOBAYASHI
  • Publication number: 20230038757
    Abstract: A power converting apparatus that converts alternating-current power from an alternating-current power supply into direct-current power and outputs the direct-current power to a direct-current load includes at least two switching circuits connected in parallel with the direct-current load; a coupling reactor that includes at least three connection terminals with two of the at least three connection terminals connected to an alternating-current terminal of one switching circuit different from two switching circuits among the at least two switching circuits; and a control unit that performs, at least once in a half period of the alternating-current power supply, a simple switching control that short-circuits the coupling reactor to the alternating-current power supply through the two switching circuits.
    Type: Application
    Filed: January 21, 2020
    Publication date: February 9, 2023
    Inventors: Koichi ARISAWA, Takaaki TAKAHARA, Hajime TOYODA, Satoshi MURAKAMI, Keisuke UEMURA, Takahiko KOBAYASHI
  • Publication number: 20230041654
    Abstract: A light-emitting device includes: a first light- emitting unit that extends in one direction and has a first emission surface located along the one direction, the first emission surface emitting light; a second light-emitting unit that is located in the one direction with respect to the first light-emitting unit, that extends in the one direction, and that has a second emission surface located along the one direction, the second emission surface emitting light; a first cleaning unit that is capable of moving in the one direction and an opposite direction that is opposite to the one direction to clean the first emission surface; a second cleaning unit that is capable of moving in the one direction and the opposite direction to clean the second emission surface; and a transmission unit that extends from the first cleaning unit and the second cleaning unit in the one direction and that transmits a moving force for moving the first cleaning unit and the second cleaning unit to the first cleaning unit and the seco
    Type: Application
    Filed: August 24, 2022
    Publication date: February 9, 2023
    Applicant: FUJIFILM Business Innovation Corp.
    Inventor: Takahiko KOBAYASHI
  • Publication number: 20230004100
    Abstract: A light-emitting device includes: a first light-emitting unit that extends in one direction and that has a first emission surface that emits light located along the one direction; a second light-emitting unit that is located in the one direction with respect to the first light-emitting unit, that extends in the one direction, and that has a second emission surface that emits light located along the one direction; a cleaning unit that is capable of moving in the one direction and an opposite direction that is opposite to the one direction to clean the first emission surface; a transmission part that extends from the cleaning unit in the one direction and that transmits a moving force for moving the cleaning unit to the cleaning unit; and an extending part that extends from the transmission part in the one direction to elongate the transmission part.
    Type: Application
    Filed: September 7, 2022
    Publication date: January 5, 2023
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Takahiko KOBAYASHI, Yosuke KASUYA
  • Publication number: 20220404757
    Abstract: A light-emitting device including: a light-emitting unit extending in one direction; an emission surface that is provided at the light-emitting unit along the one direction, and emits light in a light-emitting direction, the light-emitting direction and the one direction crossing each other; a base that is located in a direction opposite to the light-emitting direction of the light-emitting unit, and on which the light-emitting unit is removably provided; and a cleaning mechanism that includes a cleaning unit cleaning the emission surface by moving along the one direction, the cleaning mechanism allowing the light-emitting unit to be removed from the base while at least a portion of the cleaning mechanism remains on an object other than the light-emitting unit.
    Type: Application
    Filed: August 26, 2022
    Publication date: December 22, 2022
    Applicant: FUJIFILM Business Innovation Corp.
    Inventor: Takahiko KOBAYASHI
  • Publication number: 20220365460
    Abstract: A light emitting device includes: a base that extends in one direction and that is formed of a metal block; plural light emitters that are disposed on a front surface side of the base so as to be displaced from each other in the one direction and in each of which plural light sources that are arranged in the one direction are supported by a support that extends in the one direction; and a protective member that is provided at an end portion of the base in a direction intersecting the one direction, that is disposed on a lateral side of the plural light emitters so as to extend in the one direction, and that protects the plural light emitters from outside.
    Type: Application
    Filed: July 27, 2022
    Publication date: November 17, 2022
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Yosuke KASUYA, Takahiko KOBAYASHI
  • Patent number: 11347159
    Abstract: A light emitting device includes: a base plate extending in a first direction; a plurality of light emitting units arranged over a front surface of the base plate while being shifted from each other in the first direction, and each including a support body extending in the first direction and a plurality of light sources supported on the support body while being arranged in the first direction; a flow path disposed on a side of the base plate opposite to a side facing the light emitting units to feed air therethrough in the first direction; and a wire electrically connected to at least one of the plurality of the light emitting units, and disposed inside the flow path.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: May 31, 2022
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Yosuke Kasuya, Takahiko Kobayashi, Tsutomu Otsuka
  • Publication number: 20220115974
    Abstract: A driving apparatus includes: an inverter unit generating a three-phase alternating-current voltage from a direct-current voltage in accordance with a drive signal based on a voltage command and outputting the three-phase alternating-current voltage to a permanent-magnet motor, the permanent-magnet motor including a permanent magnet; a current detection unit detecting a motor current flowing through the permanent-magnet motor; and a control unit generating the voltage command to control an operation of the inverter unit and estimating a temperature of the permanent magnet to perform a protection operation on the inverter unit on the basis of the motor current and an overcurrent protection threshold.
    Type: Application
    Filed: March 28, 2019
    Publication date: April 14, 2022
    Inventor: Takahiko KOBAYASHI
  • Publication number: 20210302865
    Abstract: A light emitting device includes: a base plate extending in a first direction; a plurality of light emitting units arranged over a front surface of the base plate while being shifted from each other in the first direction, and each including a support body extending in the first direction and a plurality of light sources supported on the support body while being arranged in the first direction; a flow path disposed on a side of the base plate opposite to a side facing the light emitting units to feed air therethrough in the first direction; and a wire electrically connected to at least one of the plurality of the light emitting units, and disposed inside the flow path.
    Type: Application
    Filed: October 22, 2020
    Publication date: September 30, 2021
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yosuke KASUYA, Takahiko KOBAYASHI, Tsutomu OTSUKA
  • Patent number: 11112130
    Abstract: A refrigeration cycle apparatus includes a refrigerant circuit through which refrigerant circulates, a control box in which equipment for controlling the refrigeration cycle apparatus is accommodated, and a refrigerator for cooling a heat emitting body exposed from an opening of the control box. The heat emitting body is the equipment accommodated in the control box. The refrigerator includes a cooling body in contact with the heat emitting body, and a refrigerant pipe through which the refrigerant circulating through the refrigerant circuit passes to cool the cooling body. The refrigerant pipe is in contact with the cooling body. The pipe contact surface is different from the heating-body contact surface. The cooling body has a recessed portion at which the cooling body and the heat emitting body are not in contact with each other. The recessed portion is formed in the heating-body contact surface and spaced from the control box.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: September 7, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yoshihiro Taniguchi, Shigeo Takata, Shinsaku Kusube, Takahiko Kobayashi, Takanori Koike