Patents by Inventor Tomoki Fujikawa

Tomoki Fujikawa 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: 11796953
    Abstract: An image forming apparatus comprises an accommodating unit that accommodates recording materials and has a regulating plate that regulates a trailing edge of the recording material in a feeding direction, detects a recording material fed from the accommodating unit, and measures time from a predetermined timing until a recording material is detected. An information processing apparatus receives time data obtained by a measuring unit from the image forming apparatus, classifies a plurality of time data received from a reception unit into a first group and a second group in accordance with a length of time, and determines using time data included in the first group and the time data included in the second group whether a position of the regulating plate is misaligned in relation to a reference position that corresponds to a size of the recording material accommodated on the accommodating unit.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: October 24, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Daisuke Momiyama, Takashi Yano, Hidehiro Ushiozu, Masato Suzuki, Tomoki Fujikawa
  • Patent number: 11774890
    Abstract: An image forming apparatus, including: an image forming portion that forms an image on a recording material based on image data; a fixing portion that includes a heater having a plurality of heat generating members arranged in a direction perpendicular to a conveying direction of a recording material, and that fixes the image to the recording material using heat of the heater; a storage portion that stores history information on the recording material when image forming operation is performed in which the image forming portion forms the image and the fixing portion fixes the image, a control portion that sets power to be supplied to the heat generating members based on the history information before a type of the recording material on which the image is formed or content of the image data of the image to be formed on the recording material is determined.
    Type: Grant
    Filed: June 22, 2022
    Date of Patent: October 3, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masato Sako, Hirohiko Aiba, Tomoki Fujikawa
  • Publication number: 20230273553
    Abstract: In an image forming system including an apparatus main-body and a control portion which controls a fixing operation, to the apparatus main-body, a first fixing unit including a first heater and a second fixing unit including a second heater, which is different from the first heater, can be selectively attached, and each of the first and second fixing units has an information processing portion which transmits data including identification information and temperature information related to a temperature detected by a temperature detection element to the control portion, and the control portion discriminates which of the first fixing unit and the second fixing unit, the fixing unit attached to the apparatus main-body is on the basis of the identification information from the information processing portion and controls the fixing operation by the fixing unit on the basis of the temperature information.
    Type: Application
    Filed: February 21, 2023
    Publication date: August 31, 2023
    Inventors: TOMOKI FUJIKAWA, TADASHI FUKUMURO, YUJI FUJIWARA
  • Publication number: 20220326643
    Abstract: An image forming apparatus, including: an image forming portion that forms an image on a recording material based on image data; a fixing portion that includes a heater having a plurality of heat generating members arranged in a direction perpendicular to a conveying direction of a recording material, and that fixes the image to the recording material using heat of the heater; a storage portion that stores history information on the recording material when image forming operation is performed in which the image forming portion forms the image and the fixing portion fixes the image, a control portion that sets power to be supplied to the heat generating members based on the history information before a type of the recording material on which the image is formed or content of the image data of the image to be formed on the recording material is determined.
    Type: Application
    Filed: June 22, 2022
    Publication date: October 13, 2022
    Inventors: Masato Sako, Hirohiko Aiba, Tomoki Fujikawa
  • Patent number: 11397394
    Abstract: An image forming apparatus, including: an image forming portion that forms an image on a recording material based on image data; a fixing portion that includes a heater having a plurality of heat generating members arranged in a direction perpendicular to a conveying direction of a recording material, and that fixes the image to the recording material using heat of the heater; a storage portion that stores history information on the recording material when image forming operation is performed in which the image forming portion forms the image and the fixing portion fixes the image, a control portion that sets power to be supplied to the heat generating members based on the history information before a type of the recording material on which the image is formed or content of the image data of the image to be formed on the recording material is determined.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: July 26, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masato Sako, Hirohiko Aiba, Tomoki Fujikawa
  • Publication number: 20220075309
    Abstract: An image forming apparatus comprises an accommodating unit that accommodates recording materials and has a regulating plate that regulates a trailing edge of the recording material in a feeding direction, detects a recording material fed from the accommodating unit, and measures time from a predetermined timing until a recording material is detected. An information processing apparatus receives time data obtained by a measuring unit from the image forming apparatus, classifies a plurality of time data received from a reception unit into a first group and a second group in accordance with a length of time, and determines using time data included in the first group and the time data included in the second group whether a position of the regulating plate is misaligned in relation to a reference position that corresponds to a size of the recording material accommodated on the accommodating unit.
    Type: Application
    Filed: November 12, 2021
    Publication date: March 10, 2022
    Inventors: Daisuke Momiyama, Takashi Yano, Hidehiro Ushiozu, Masato Suzuki, Tomoki Fujikawa
  • Patent number: 11237512
    Abstract: An image forming apparatus comprises an accommodating unit that accommodates recording materials and has a regulating plate that regulates a trailing edge of the recording material in a feeding direction, detects a recording material fed from the accommodating unit, and measures time from a predetermined timing until a recording material is detected. An information processing apparatus receives time data obtained by a measuring unit from the image forming apparatus, classifies a plurality of time data received from a reception unit into a first group and a second group in accordance with a length of time, and determines using time data included in the first group and the time data included in the second group whether a position of the regulating plate is misaligned in relation to a reference position that corresponds to a size of the recording material accommodated on the accommodating unit.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: February 1, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Daisuke Momiyama, Takashi Yano, Hidehiro Ushiozu, Masato Suzuki, Tomoki Fujikawa
  • Publication number: 20210200129
    Abstract: An image forming apparatus, including: an image forming portion that forms an image on a recording material based on image data; a fixing portion that includes a heater having a plurality of heat generating members arranged in a direction perpendicular to a conveying direction of a recording material, and that fixes the image to the recording material using heat of the heater; a storage portion that stores history information on the recording material when image forming operation is performed in which the image forming portion forms the image and the fixing portion fixes the image, a control portion that sets power to be supplied to the heat generating members based on the history information before a type of the recording material on which the image is formed or content of the image data of the image to be formed on the recording material is determined.
    Type: Application
    Filed: March 17, 2021
    Publication date: July 1, 2021
    Inventors: Masato Sako, Hirohiko Aiba, Tomoki Fujikawa
  • Publication number: 20210181668
    Abstract: An image forming apparatus comprises an accommodating unit that accommodates recording materials and has a regulating plate that regulates a trailing edge of the recording material in a feeding direction, detects a recording material fed from the accommodating unit, and measures time from a predetermined timing until a recording material is detected. An information processing apparatus receives time data obtained by a measuring unit from the image forming apparatus, classifies a plurality of time data received from a reception unit into a first group and a second group in accordance with a length of time, and determines using time data included in the first group and the time data included in the second group whether a position of the regulating plate is misaligned in relation to a reference position that corresponds to a size of the recording material accommodated on the accommodating unit.
    Type: Application
    Filed: December 7, 2020
    Publication date: June 17, 2021
    Inventors: Daisuke Momiyama, Takashi Yano, Hidehiro Ushiozu, Masato Suzuki, Tomoki Fujikawa
  • Patent number: 10983465
    Abstract: An image forming apparatus, including: an image forming portion that forms an image on a recording material based on image data; a fixing portion that includes a heater having a plurality of heat generating members arranged in a direction perpendicular to a conveying direction of a recording material, and that fixes the image to the recording material using heat of the heater; a storage portion that stores history information on the recording material when image forming operation is performed in which the image forming portion forms the image and the fixing portion fixes the image, a control portion that sets power to be supplied to the heat generating members based on the history information before a type of the recording material on which the image is formed or content of the image data of the image to be formed on the recording material is determined.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: April 20, 2021
    Assignee: Canon Kabushikl Kaisha
    Inventors: Masato Sako, Hirohiko Aiba, Tomoki Fujikawa
  • Publication number: 20210034000
    Abstract: An image forming apparatus, including: an image forming portion that forms an image on a recording material based on image data; a fixing portion that includes a heater having a plurality of heat generating members arranged in a direction perpendicular to a conveying direction of a recording material, and that fixes the image to the recording material using heat of the heater; a storage portion that stores history information on the recording material when image forming operation is performed in which the image forming portion forms the image and the fixing portion fixes the image, a control portion that sets power to be supplied to the heat generating members based on the history information before a type of the recording material on which the image is formed or content of the image data of the image to be formed on the recording material is determined.
    Type: Application
    Filed: July 30, 2020
    Publication date: February 4, 2021
    Inventors: Masato Sako, Hirohiko Aiba, Tomoki Fujikawa
  • Patent number: 9405258
    Abstract: An image forming apparatus includes a storage unit, a conveyance unit, an opening, and a movement unit. The storage unit stores, in an apparatus body of the image forming apparatus, a sheet having an image. The conveyance unit conveys the sheet having the image to the storage unit. The opening exposes the stored sheet to an outside of the apparatus body. The movement unit is movable to a first position where the sheet conveyed to the storage unit can be stored in the storage unit and a second position. The stored sheet is moved when the movement unit moves from the first to the second position, and is stopped in an exposed state where a part of the sheet is exposed to outside the apparatus body from the opening. The movement unit moves from the second to the first position when the sheet is in the exposed state.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: August 2, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tomoki Fujikawa
  • Publication number: 20150117924
    Abstract: An image forming apparatus includes a storage unit, a conveyance unit, an opening, and a movement unit. The storage unit stores, in an apparatus body of the image forming apparatus, a sheet having an image. The conveyance unit conveys the sheet having the image to the storage unit. The opening exposes the stored sheet to an outside of the apparatus body. The movement unit is movable to a first position where the sheet conveyed to the storage unit can be stored in the storage unit and a second position. The stored sheet is moved when the movement unit moves from the first to the second position, and is stopped in an exposed state where a part of the sheet is exposed to outside the apparatus body from the opening. The movement unit moves from the second to the first position when the sheet is in the exposed state.
    Type: Application
    Filed: October 27, 2014
    Publication date: April 30, 2015
    Inventor: Tomoki Fujikawa
  • Patent number: 7827829
    Abstract: An elastic fabric useable for covering pillows, seats, mattresses and the like is disclosed. The fabric is formed from elastic yarns having a breaking elongation greater than 60%, a rate of elastic recovery after 15% elongation of more than 90% and a stress at 10% elongation greater than 150 N/5 cm and less than 600 N/5 cm oriented in a direction parallel to the elastic yarn, and a rate of hysteresis loss between 20% and 45%. The fabric may be woven or knitted and provides a stable, comfortable feeling for sitting or reclining and deforms when supporting weight but returns readily to its undeformed shape.
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: November 9, 2010
    Assignee: Kawashimaorimono Co., Ltd.
    Inventor: Tomoki Fujikawa
  • Publication number: 20060207296
    Abstract: An elastic fabric useable for covering pillows, seats, mattresses and the like is disclosed. The fabric is formed from elastic yarns having a breaking elongation greater than 60%, a rate of elastic recovery after 15% elongation of more than 90% and a stress at 10% elongation greater than 150 N/5 cm and less than 600 N/5 cm oriented in a direction parallel to the elastic yarn, and a rate of hysteresis loss between 20% and 45%. The fabric may be woven or knitted and provides a stable, comfortable feeling for sitting or reclining and deforms when supporting weight but returns readily to its undeformed shape.
    Type: Application
    Filed: August 4, 2003
    Publication date: September 21, 2006
    Applicant: KAWASHIMAORIMONO CO., LTD
    Inventor: Tomoki Fujikawa