Patents by Inventor Hiroshi Hagiwara

Hiroshi Hagiwara 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).

  • Publication number: 20240135894
    Abstract: A panel drive circuit having an input interface to which an image signal is input, a gamma correction circuit that corrects an image processing signal generated by an image processing circuit performing image processing on the image signal input to the input interface, such that a gamma correction signal thus generated has predetermined gamma characteristics, an unevenness correction circuit that corrects the gamma correction signal generated through the correction by the gamma correction circuit, based on correction data for reducing unevenness of a display panel, and an D/A convertor that has a variable output voltage range, and performs D/A conversion on an unevenness correction signal generated through the correction by the unevenness correction circuit and outputs the signal thus generated to the display panel, and the unevenness correction circuit changes the correction method according to the output voltage range of the D/A convertor.
    Type: Application
    Filed: March 10, 2021
    Publication date: April 25, 2024
    Applicant: IIX INC.
    Inventors: Makoto HATAKENAKA, Takashi SAKAMOTO, Mitsuo HAGIWARA, Norimasa SENDA, Yoshihide MINEGISHI, Hiroshi MURASE
  • Patent number: 11954312
    Abstract: An input device includes a touch panel having an operation surface and configured to receive a touch input and a hover input by an operation body; a display device configured to display a plurality of selection items; a memory; and a processor coupled to the memory. The processor is configured to highlight a selection item, a selection of the selection item being made by the hover input from the plurality of selection items, confirm the selection of the selection item by the hover input in a case where a duration during which the selection item is selected by the hover input reaches a first predetermined threshold, and confirm a selection of the selection item by the touch input in a case where the touch input is detected on the selection item before the duration reaches the first predetermined threshold.
    Type: Grant
    Filed: May 27, 2022
    Date of Patent: April 9, 2024
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Toshiki Nakamura, Hiroshi Shigetaka, Hirofumi Kuga, Masahiro Takata, Yasuji Hagiwara
  • Publication number: 20240071337
    Abstract: An unevenness correction data generation device suppressing the appearance of color unevenness when turning on R, G and B together includes a pattern generation unit causing red, green and blue images, in which display panel subpixels are turned on at the same gray level, to be displayed, a monochrome camera, a control unit generating first red, green and blue luminance correction data based on shooting data of the monochrome camera, a pattern generation unit causing the display panel to display a white image by causing red, green and blue images corrected with the respective luminance correction data to be displayed simultaneously, a color camera shooting the white image in color, and a control unit generating color correction data for correcting color unevenness based on shooting data of the color camera and generates unevenness correction data based on the red, green and blue luminance correction data and the color correction data.
    Type: Application
    Filed: February 4, 2021
    Publication date: February 29, 2024
    Applicant: IIX INC.
    Inventors: Makoto HATAKENAKA, Takashi SAKAMOTO, Hiroshi MURASE, Mitsuo HAGIWARA, Hideaki SUZUKI, Kazunori YOSHIZAWA
  • Publication number: 20230393515
    Abstract: An image forming system includes an image forming unit, a plurality of drive units configured to drive the image forming unit, a sound detection unit configured to detect operation sounds of the plurality of drive units, and a control unit configured to implement a drive mode for operating at least one of the plurality of drive units and not operating other drive units, without forming an image on a recording material by the image forming unit, wherein the control unit implements the drive mode when the value of a counter reaches a threshold value, the counter being incremented with each image formation on a recording material by the image forming unit, and wherein the identification operation identifies a component causing the predetermined sound based on the operation sounds detected by the sound detection unit during a period in which the drive mode is being implemented.
    Type: Application
    Filed: May 31, 2023
    Publication date: December 7, 2023
    Inventors: SEIJI HARA, YOHEI SUZUKI, HIROSHI HAGIWARA
  • Patent number: 11827486
    Abstract: An image forming apparatus includes a conveyance unit, a detection unit, and a determination unit. The conveyance unit conveys a sheet. The detection unit detects a sound that emanates when the conveyance unit operates. The determination unit performs state determination. In a case where a volume of a sound detected by the detection unit is not higher than or equal to a predetermined sound volume, the determination unit determines that the conveyance unit is not normally operating. In a case where the detected sound volume is higher than or equal to the predetermined sound volume, the determination unit determines that the conveyance unit is normally operating.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: November 28, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kosuke Ogino, Hajime Sugaya, Hiroshi Hagiwara
  • Patent number: 11792342
    Abstract: An image forming apparatus includes a transfer member, a fixing unit, a double-side feeding path through which the sheet, performed with image formation on a first surface thereof and passed through the fixing unit; is fed to transfer the toner image onto a second surface thereof, a first feeding unit to feed the sheet in the double-side feeding path and a second feeding unit to feed the sheet fed by the first feeding unit toward the transfer member. A controller selects a first double-side feeding control in which the sheet is fed by the second feeding unit or a second double-side feeding control in which the sheet is fed by the first feeding unit and the second feeding unit in a case in which the double-side printing is performed in the second mode.
    Type: Grant
    Filed: September 16, 2022
    Date of Patent: October 17, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Hagiwara, Kosuke Ogino
  • Publication number: 20230300258
    Abstract: A sound diagnosis system includes: a setting unit configured to set a threshold for each of a plurality of time sections, based on a sound wave level in each of the plurality of time sections of a plurality of first sound data classified in a first group; and a determination unit configured to determine whether or not an abnormal sound is generated by calculating a comparison value for each of the plurality of time sections based on a sound wave level in each of the plurality of time sections of one or more second sound data classified in the first group, and comparing the comparison value for each of the plurality of time sections with the threshold value of the corresponding time section of the first group, the threshold value being set by the setting unit.
    Type: Application
    Filed: March 10, 2023
    Publication date: September 21, 2023
    Inventors: YOHEI SUZUKI, SEIJI HARA, HIROSHI HAGIWARA
  • Publication number: 20230092601
    Abstract: An image forming apparatus includes a transfer member, a fixing unit, a double-side feeding path through which the sheet, performed with image formation on a first surface thereof and passed through the fixing unit; is fed to transfer the toner image onto a second surface thereof, a first feeding unit to feed the sheet in the double-side feeding path and a second feeding unit to feed the sheet fed by the first feeding unit toward the transfer member. A controller selects a first double-side feeding control in which the sheet is fed by the second feeding unit or a second double-side feeding control in which the sheet is fed by the first feeding unit and the second feeding unit in a case in which the double-side printing is performed in the second mode.
    Type: Application
    Filed: September 16, 2022
    Publication date: March 23, 2023
    Inventors: Hiroshi Hagiwara, Kosuke Ogino
  • Patent number: 11556804
    Abstract: A control apparatus includes a prediction unit configured to repeatedly predict a first target value based on prediction information; a transmission/reception unit configured to repeatedly transmit the prediction information to a server and receive a second target value having higher prediction accuracy than the first target value predicted by the server; a management unit configured to update a first error of prediction in the prediction unit based on the second target value and the first target value; and a setting unit configured to set a control target value based on the first target value and the first error. A first time interval in which the prediction unit repeatedly predicts the first target value is shorter than a second time interval in which the transmission/reception unit repeatedly transmits the prediction information to the server.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: January 17, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yuki Nagato, Hiroshi Hagiwara
  • Patent number: 11514283
    Abstract: There is provided an image forming system that includes an image forming apparatus including, a first variable mechanism that varies from a first state to a second state or from the second state to the first state when physically operated by a user, a first detection unit configured to detect the variation of a state of the first variable mechanism, and a sound collection unit. The image forming system further includes a generation unit configured to generate, when the variation is detected by the first detection unit, first statistical information regarding at least one sound wave obtained by the sound collection unit in a period based on a timing when the variation is detected.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: November 29, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yohei Suzuki, Seiji Hara, Masafumi Monde, Hiroshi Hagiwara, Yoshitaka Zaitsu, Hiromitsu Kumada
  • Publication number: 20220276600
    Abstract: An image forming apparatus includes an image forming unit having a plurality of members, a control unit, and a sound collecting unit. The control unit controls operations of the plurality of members in a first operation mode in which the image forming unit forms an image on a recording material. The sound collecting unit collects a sound that arises in the image forming apparatus during the first operation mode execution to generate a sound signal. When it is determined, based on the generated sound signal, that an abnormal sound has arisen, the control unit determines a source of the abnormal sound by transitioning to a second operation mode after the first operation mode has ended and causing, in the second operation mode, one or more members, from the plurality of members, that are possible sources of the abnormal sound to operate separately from the remaining plurality of members.
    Type: Application
    Filed: May 17, 2022
    Publication date: September 1, 2022
    Inventors: Seiji Hara, Yohei Suzuki, Masafumi Monde, Hiroshi Hagiwara, Yoshitaka Zaitsu, Hiromitsu Kumada
  • Patent number: 11427399
    Abstract: An aircraft water tank is provided. With an aircraft water tank being suspended by a fuselage via bushes, a load applied to each of the bushes is transferred from the bush and an attachment hole to a metal plate. The load transferred to metal plate is transferred to a total of four prepreg projection portions at a section of a thick wall portion of the metal plate and transferred to a total of eight prepreg projection portions at a section of a thin wall portion.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: August 30, 2022
    Assignee: The Yokohama Rubber Co., LTD.
    Inventors: Yuji Taguchi, Hiroshi Hagiwara
  • Publication number: 20220197204
    Abstract: An image forming apparatus includes a stack portion having recording materials, an image forming unit, a basis weight detection unit, an operating sound detection unit, and a mode selection unit. The basis weight detection unit detects a recording material basis weight based on an ultrasonic wave. The operating sound detection unit detect an abnormality of a generated operating sound. The mode selection unit selects, for each recording material fed to the image forming unit, between transmitting to the basis weight detection unit a first instruction for detecting the recording material basis weight and transmitting to the operating sound detection unit a second instruction for detecting the operating sound abnormality. In determining an interval at which each second instruction is transmitted, the mode selection unit determines the interval so that the interval and a cycle, in which properties of recording materials on the stack portion are repeated, do not continuously coincide.
    Type: Application
    Filed: December 10, 2021
    Publication date: June 23, 2022
    Inventors: Hiroshi Hagiwara, Naoto Tsuchihashi, Yohei Suzuki, Seiji Hara, Yoshitaka Zaitsu, Masafumi Monde, Hiromitsu Kumada
  • Patent number: 11360420
    Abstract: An image forming apparatus includes an image forming unit having a plurality of members, a control unit, and a sound collecting unit. The control unit controls operations of the plurality of members in a first operation mode in which the image forming unit forms an image on a recording material. The sound collecting unit collects a sound that arises in the image forming apparatus during the first operation mode execution to generate a sound signal. When it is determined, based on the generated sound signal, that an abnormal sound has arisen, the control unit determines a source of the abnormal sound by transitioning to a second operation mode after the first operation mode has ended and causing, in the second operation mode, one or more members, from the plurality of members, that are possible sources of the abnormal sound to operate separately from the remaining plurality of members.
    Type: Grant
    Filed: April 2, 2021
    Date of Patent: June 14, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Seiji Hara, Yohei Suzuki, Masafumi Monde, Hiroshi Hagiwara, Yoshitaka Zaitsu, Hiromitsu Kumada
  • Patent number: 11206334
    Abstract: An image forming apparatus includes an image formation unit configured to form an image on a sheet at a formation position; a circulatory conveyance path for conveying the sheet with the image formed at the formation position on a first side thereof to the formation position again; a reading unit configured to read the first side of the sheet conveyed through the circulatory conveyance path and output image information; and a conveyance control unit configured to convey the sheet in one conveyance mode out of a plurality of conveyance modes when the reading unit reads the first side of the sheet. A range, in a conveyance direction, of the sheet that can be read by the reading unit while a conveyance speed of the sheet is constant is different for each of the plurality of conveyance modes.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: December 21, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hiroshi Hagiwara
  • Publication number: 20210311425
    Abstract: An image forming apparatus includes an image forming unit having a plurality of members, a control unit, and a sound collecting unit. The control unit controls operations of the plurality of members in a first operation mode in which the image forming unit forms an image on a recording material. The sound collecting unit collects a sound that arises in the image forming apparatus during the first operation mode execution to generate a sound signal. When it is determined, based on the generated sound signal, that an abnormal sound has arisen, the control unit determines a source of the abnormal sound by transitioning to a second operation mode after the first operation mode has ended and causing, in the second operation mode, one or more members, from the plurality of members, that are possible sources of the abnormal sound to operate separately from the remaining plurality of members.
    Type: Application
    Filed: April 2, 2021
    Publication date: October 7, 2021
    Inventors: Seiji Hara, Yohei Suzuki, Masafumi Monde, Hiroshi Hagiwara, Yoshitaka Zaitsu, Hiromitsu Kumada
  • Patent number: 11131954
    Abstract: An image forming apparatus includes an image forming unit configured to form an image on a sheet; a reading unit configured to read the image formed on the sheet by the image forming unit during a period in which the sheet is being conveyed by a conveying unit; a control unit configured to control a conveyance speed of the sheet by the conveying unit; and a determination unit configured to determine whether or not there is an image defect in the image formed on the sheet by the image forming unit based on image data of a first partial image read by the reading unit, excluding a second partial image passing through the reading unit during a speed variation period in which the control unit varies the conveyance speed of the sheet.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: September 28, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shingo Harada, Hiroshi Hagiwara
  • Publication number: 20210241058
    Abstract: There is provided an image forming system that includes an image forming apparatus including, a first variable mechanism that varies from a first state to a second state or from the second state to the first state when physically operated by a user, a first detection unit configured to detect the variation of a state of the first variable mechanism, and a sound collection unit. The image forming system further includes a generation unit configured to generate, when the variation is detected by the first detection unit, first statistical information regarding at least one sound wave obtained by the sound collection unit in a period based on a timing when the variation is detected.
    Type: Application
    Filed: January 27, 2021
    Publication date: August 5, 2021
    Inventors: Yohei Suzuki, Seiji Hara, Masafumi Monde, Hiroshi Hagiwara, Yoshitaka Zaitsu, Hiromitsu Kumada
  • Publication number: 20210216884
    Abstract: A control apparatus includes a prediction unit configured to repeatedly predict a first target value based on prediction information; a transmission/reception unit configured to repeatedly transmit the prediction information to a server and receive a second target value having higher prediction accuracy than the first target value predicted by the server; a management unit configured to update a first error of prediction in the prediction unit based on the second target value and the first target value; and a setting unit configured to set a control target value based on the first target value and the first error. A first time interval in which the prediction unit repeatedly predicts the first target value is shorter than a second time interval in which the transmission/reception unit repeatedly transmits the prediction information to the server.
    Type: Application
    Filed: January 11, 2021
    Publication date: July 15, 2021
    Inventors: Yuki Nagato, Hiroshi Hagiwara
  • Publication number: 20210179344
    Abstract: An aircraft water tank is provided. With an aircraft water tank being suspended by a fuselage via bushes, a load applied to each of the bushes is transferred from the bush and an attachment hole to a metal plate. The load transferred to metal plate is transferred to a total of four prepreg projection portions at a section of a thick wall portion of the metal plate and transferred to a total of eight prepreg projection portions at a section of a thin wall portion.
    Type: Application
    Filed: June 29, 2018
    Publication date: June 17, 2021
    Inventors: Yuji Taguchi, Hiroshi Hagiwara