Patents by Inventor Hiroto Akiyama

Hiroto Akiyama 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: 11934128
    Abstract: A fixing belt includes a base member containing a metal, a sliding layer containing a filler and formed on a base member inner side, and a separation layer formed on a base member outer side. Assume that (i) a sliding layer cross section is obtained by cutting the sliding layer along a sliding layer thickness direction and is divided into sections each having a length that is the same as a sliding layer thickness in a direction perpendicular to the thickness direction, and (ii) a ratio of a filler area to a sliding layer area in each cross section sections is an area ratio. A period coefficient is calculated using the formula (Ave %?Min %)/Ave %, where an average of area ratios of filler areas in all the sections is Ave % and a minimum of the area ratios is Min %, and the calculated period coefficient is 0.6 or more.
    Type: Grant
    Filed: July 20, 2022
    Date of Patent: March 19, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroto Sugimoto, Naoki Akiyama, Yasuhiro Miyahara, Noriaki Kobayashi, Hiroki Muramatsu, Akeshi Asaka
  • Publication number: 20240077772
    Abstract: A display device includes: a first substrate, a second substrate, a light-blocking portion, a pixel, and a wiring line. The second substrate has a main face opposite a main face of the first substrate. The light-blocking portion is disposed on the main face of the first substrate, including an opening, and blocking light. The pixel is disposed on the main faces of the first substrate and the second substrate and delimited by at least a part of the opening. The wiring line is disposed on the main face of the second substrate and at least partially overlapping the opening. The wiring line has a projection protruding toward a first substrate side. The projection has a surface including a curved surface and comprises a plurality of projections disposed at intervals in locations overlapping at least the opening.
    Type: Application
    Filed: April 27, 2023
    Publication date: March 7, 2024
    Inventors: Hiroaki WADA, Junichi MORI, Takumi TOMITA, Kenichi NISHIMURA, Hiroto AKIYAMA
  • Publication number: 20240076150
    Abstract: Provided is a sheet feeding apparatus provided with a storage chamber for storing sheets, a sheet feeding unit including a delivery roller for contacting the sheet stored in the storage chamber to deliver the sheet from the storage chamber, a support member for supporting the storage chamber to allow the chamber to be installed and pulled out in/from an apparatus main body, and a press force switch mechanism including an operation member to switch a press force used for the delivery roller to contact the sheet, the sheet feeding unit is configured to be capable of being installed and pulled out in/from the main body apparatus integrally with the storage chamber, and the press force switch mechanism is provided in the sheet feeding unit.
    Type: Application
    Filed: April 24, 2023
    Publication date: March 7, 2024
    Applicant: CANON FINETECH NISCA INC.
    Inventor: Hiroto AKIYAMA
  • Publication number: 20230395613
    Abstract: A wiring substrate includes a first terminal, a second terminal disposed side by side at intervals from the first terminal in a first direction, a third terminal disposed side by side at intervals from the first terminal in the first direction on a side opposite to the second terminal, a first wiring positioned between the first terminal and the second terminal, a second wiring connected to the first terminal and the third terminal, and an insulating portion disposed on an upper layer side of the first terminal, the second terminal, the third terminal, the first wiring, and the second wiring, in which the third terminal is disposed at a position where an interval between the third terminal and the first terminal is longer than any of an interval between the first wiring and the first terminal, and an interval between the first wiring and the second terminal.
    Type: Application
    Filed: June 1, 2023
    Publication date: December 7, 2023
    Inventors: Ryohki ITOH, Hiroto AKIYAMA
  • Publication number: 20230367159
    Abstract: A liquid crystal display panel includes an active matrix substrate, a color filter substrate, and a liquid crystal layer. The color filter substrate includes a black matrix that include a plurality of first portions that each overlap a plurality of source bus lines of the active matrix substrate in plan view and a plurality of second portions that intersect the plurality of first portions and each overlap a plurality of gate bus lines of the active matrix substrate in plan view, and a plurality of spacers. Of the plurality of first portions, a first portion that is adjacent to at least part of the plurality of spacers has a base portion. A width of the base portion in a direction perpendicular to a direction in which the first portion extends is larger than a width of other portions.
    Type: Application
    Filed: April 28, 2023
    Publication date: November 16, 2023
    Inventors: Takahiro KOSHIBA, Hiroto AKIYAMA
  • Patent number: 11807476
    Abstract: There is provided a sheet feeding apparatus for feeding a sheet. The sheet feeding apparatus includes: a feeding roller that feeds a sheet; and a moving mechanism that moves the feeding roller to a feeding position where the feeding roller contacts the sheet, to a first retracting position where the feeding roller is separated from the sheet, and to a second retracting position lying between the feeding position and the first retracting position.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: November 7, 2023
    Assignee: CANON FINETECH NISCA INC.
    Inventor: Hiroto Akiyama
  • Publication number: 20230305342
    Abstract: A display device includes: a plurality of first color filters not intersecting a non-linear portion with at least a part of an outer shape of a display region being non-linear, a plurality of second color filters at least part of which intersects the non-linear portion, a first region with the plurality of first color filters disposed, a second region with the plurality of second color filters disposed, a first light blocking portion partitioning the plurality of first color filters, a second light blocking portion partitioning the plurality of second color filters, and a spacer. An overlapping area of the second light blocking portion with respect to the plurality of second color filters is larger than that of the first light blocking portion with respect to the plurality of first color filters. A distribution density of the spacer in the second region is lower than that in the first region.
    Type: Application
    Filed: February 25, 2023
    Publication date: September 28, 2023
    Inventors: Masahiro DATE, Kazuhide AKITA, Eiji SHINOHARA, Shota NOZAKI, Tadashi OKAMOTO, Kazuyoshi HAMANAKA, Hiroto AKIYAMA
  • Patent number: 11535469
    Abstract: A sheet feeding apparatus includes: a storage part that stores a sheet, and a feeding part that has a feeding roller for feeding the sheet. The storage part and the feeding part are configured to be integrally inserted/withdrawn into/from an apparatus enclosure. The feeding roller is moved from a feeding position to a retracting position before the storage part and the feeding part are withdrawn from the enclosure.
    Type: Grant
    Filed: December 24, 2020
    Date of Patent: December 27, 2022
    Assignee: CANON FINETECH NISCA INC.
    Inventors: Masatoshi Ozawa, Hiroto Akiyama, Seiji Nishizawa, Kei Horiuchi
  • Patent number: 11460726
    Abstract: A liquid crystal display device includes: a display area; a non-display area; a plurality of gate lines; a plurality of source lines; a plurality of thin film transistors; a gate driver; a source driver; a control unit configured to supply a control signal to the source driver; and an auxiliary line extending in the non-display area from an end of one of the plurality of source lines to another end thereof, wherein each of the plurality of thin film transistors is turned on and off when one of the plurality of gate signals supplied to one of the plurality of gate lines connected to that thin film transistor changes to an ON voltage level and an OFF voltage level respectively, and the control signal rises at a different timing from a fall in one of the plurality of gate signals.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: October 4, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hiroto Akiyama, Yasunao Iwata
  • Publication number: 20210405412
    Abstract: A liquid crystal display device includes: a display area; a non-display area; a plurality of gate lines; a plurality of source lines; a plurality of thin film transistors; a gate driver; a source driver; a control unit configured to supply a control signal to the source driver; and an auxiliary line extending in the non-display area from an end of one of the plurality of source lines to another end thereof, wherein each of the plurality of thin film transistors is turned on and off when one of the plurality of gate signals supplied to one of the plurality of gate lines connected to that thin film transistor changes to an ON voltage level and an OFF voltage level respectively, and the control signal rises at a different timing from a fall in one of the plurality of gate signals.
    Type: Application
    Filed: June 18, 2021
    Publication date: December 30, 2021
    Inventors: HIROTO AKIYAMA, YASUNAO IWATA
  • Publication number: 20210198060
    Abstract: There is provided a sheet feeding apparatus for feeding a sheet. The sheet feeding apparatus includes: a feeding roller that feeds a sheet; and a moving mechanism that moves the feeding roller to a feeding position where the feeding roller contacts the sheet, to a first retracting position where the feeding roller is separated from the sheet, and to a second retracting position lying between the feeding position and the first retracting position.
    Type: Application
    Filed: December 22, 2020
    Publication date: July 1, 2021
    Applicant: CANON FINETECH NISCA INC.
    Inventor: Hiroto AKIYAMA
  • Publication number: 20210198061
    Abstract: A sheet feeding apparatus includes: a storage part that stores a sheet, and a feeding part that has a feeding roller for feeding the sheet. The storage part and the feeding part are configured to be integrally inserted/withdrawn into/from an apparatus enclosure. The feeding roller is moved from a feeding position to a retracting position before the storage part and the feeding part are withdrawn from the enclosure.
    Type: Application
    Filed: December 24, 2020
    Publication date: July 1, 2021
    Applicant: CANON FINETECH NISCA INC.
    Inventors: Masatoshi OZAWA, Hiroto AKIYAMA, Seiji NISHIZAWA, Kei HORIUCHI
  • Patent number: 11022846
    Abstract: A substrate for a display device includes a substrate, a first insulator disposed on the substrate, a second insulator disposed above the first insulator, an alignment film disposed above the second insulator, a first insulator main section being a section of the first insulator and disposed on an inner side than an outer edge of the substrate such that the first insulator is not disposed on an outer edge portion of the substrate, a film forming area restricting portion being a section of the second insulator and disposed on an outer edge portion of the substrate not to overlap the first insulator main section and restricting a film forming area in which the alignment film is to be formed, and an overlapping portion being a section of the first insulator and extending continuously from the first insulator main section and disposed to overlap the film forming area restricting portion.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: June 1, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hiroto Akiyama, Tomofumi Kubota
  • Publication number: 20200387024
    Abstract: A display panel includes the following: a first substrate on which a light-blocking film and a conductive film are disposed; a second substrate on which a ground is disposed; and a liquid-crystal layer composed of an electro-optical substance disposed between the substrates. The conductive film and the ground are connected together by a conductive connector extending over a side edge of the first substrate located in the non-display area. The light-blocking film includes a main light-blocking film including an intra-display-area light-blocking portion disposed in a display area, and includes an isolated light-blocking film including a portion of the side edge adjacent to where the connector is located. The isolated light-blocking film is in the non-display area and is electrically isolated from the main light-blocking film.
    Type: Application
    Filed: June 4, 2020
    Publication date: December 10, 2020
    Inventor: HIROTO AKIYAMA
  • Patent number: 10828925
    Abstract: To enable a bunch of sheets to be reliably discharged to a stack tray, also in the case where weight of the bunch of sheets formed on a processing tray is large, upon receiving a printing command, a main body control section checks information on an ink discharge amount in printing on a sheet, the number of sheets, sheet type and printing mode (two-side/one-side). By this means, the section recognizes weight of the bunch of sheets formed on the processing tray, and when determining that the weight is heavier than predetermined weight, deceases an upper limit value of the number of sheets of a bunch of sheets formed at a time to report to a user.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: November 10, 2020
    Assignee: CANON FINETECH NISCA INC.
    Inventors: Mamoru Kubo, Hiroto Akiyama, Ichitaro Kubota, Hiroki Honmochi, Takashi Saito, Kota Hihara
  • Patent number: 10800631
    Abstract: To enable a bunch of sheets to be reliably discharged to a stack tray, also in the case where weight of the bunch of sheets formed on a processing tray is large, a post-processing control section receives information on an ink discharge amount, the number of sheets, sheet type, and printing mode (two-side/one-side) in printing on sheets from a main body control section of an image forming unit A, in forming a bunch of sheets on the processing tray. The control section thereby recognizes weight of a bunch of sheets formed on the processing tray, and when the section determines that the weight is heavier than predetermined weight, decreases a rotation velocity of a drive motor of a sheet bunch transport means, or increases a current amount applied to the drive motor. By this means, torque of the motor is increased, and the bunch of sheets is reliably discharged to the first stack tray.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: October 13, 2020
    Assignee: CANON FINETECH NISCA INC.
    Inventors: Mamoru Kubo, Hiroto Akiyama, Ichitaro Kubota, Hiroki Honmochi, Takashi Saito, Kota Hihara
  • Patent number: 10649294
    Abstract: A display device includes a pixel electrode, a signal line, a pixel electrode, and a blocking portion. The signal line is configured to transmit a signal to the pixel electrode. The pixel electrode connecting line is disposed a predefined distance apart from the signal line and connected to the pixel electrode. The blocking portion is disposed between a connecting portion of the pixel electrode connected to the pixel electrode connecting line and the signal line to block an electric field between the connection portion and the signal line.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: May 12, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hiroto Akiyama, Shingo Kamitani
  • Publication number: 20200117057
    Abstract: A substrate for a display device includes a substrate, a first insulator disposed on the substrate, a second insulator disposed above the first insulator, an alignment film disposed above the second insulator, a first insulator main section being a section of the first insulator and disposed on an inner side than an outer edge of the substrate such that the first insulator is not disposed on an outer edge portion of the substrate, a film forming area restricting portion being a section of the second insulator and disposed on an outer edge portion of the substrate not to overlap the first insulator main section and restricting a film forming area in which the alignment film is to be formed, and an overlapping portion being a section of the first insulator and extending continuously from the first insulator main section and disposed to overlap the film forming area restricting portion.
    Type: Application
    Filed: June 21, 2018
    Publication date: April 16, 2020
    Inventors: HIROTO AKIYAMA, TOMOFUMI KUBOTA
  • Publication number: 20190248168
    Abstract: To enable a bunch of sheets to be reliably discharged to a stack tray, also in the case where weight of the bunch of sheets formed on a processing tray is large, upon receiving a printing command, a main body control section checks information on an ink discharge amount in printing on a sheet, the number of sheets, sheet type and printing mode (two-side/one-side). By this means, the section recognizes weight of the bunch of sheets formed on the processing tray, and when determining that the weight is heavier than predetermined weight, deceases an upper limit value of the number of sheets of a bunch of sheets formed at a time to report to a user.
    Type: Application
    Filed: February 8, 2019
    Publication date: August 15, 2019
    Applicant: CANON FINETECH NISCA INC.
    Inventors: Mamoru KUBO, Hiroto AKIYAMA, Ichitaro KUBOTA, Hiroki HONMOCHI, Takashi SAITO, Kota HIHARA
  • Publication number: 20190248615
    Abstract: To enable a bunch of sheets to be reliably discharged to a stack tray, also in the case where weight of the bunch of sheets formed on a processing tray is large, a post-processing control section receives information on an ink discharge amount, the number of sheets, sheet type, and printing mode (two-side/one-side) in printing on sheets from a main body control section of an image forming unit A, in forming a bunch of sheets on the processing tray. The control section thereby recognizes weight of a bunch of sheets formed on the processing tray, and when the section determines that the weight is heavier than predetermined weight, decreases a rotation velocity of a drive motor of a sheet bunch transport means, or increases a current amount applied to the drive motor. By this means, torque of the motor is increased, and the bunch of sheets is reliably discharged to the first stack tray.
    Type: Application
    Filed: February 8, 2019
    Publication date: August 15, 2019
    Applicant: CANON FINETECH NISCA INC.
    Inventors: Mamoru Kubo, Hiroto Akiyama, Ichitaro Kubota, Hiroki Honmochi, Takashi Saito, Kota Hihara