Patents by Inventor Sayaka Morita

Sayaka Morita 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: 10691058
    Abstract: An image forming apparatus includes a latent image carrier whose rotational speed changes depending on a printing speed of an image onto a sheet, an applicator that applies a lubricant to a surface of the latent image carrier, and a hardware processor that causes a surface of the applicator to move such that a difference between a first moving speed and a second moving speed is within a certain range, the first moving speed being a speed at which the surface of the latent image carrier moves, the second moving speed being a speed at which the surface of the applicator moves.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: June 23, 2020
    Assignee: KONICA MINOLTA INC.
    Inventors: Kunitomo Sasaki, Masayasu Haga, Sayaka Morita, Tsugihito Yoshiyama
  • Patent number: 10656548
    Abstract: An image forming apparatus includes: a photoreceptor; a charging member that charges the photoreceptor; a charging power supply that outputs an AC bias as a charging bias to be applied to the charging member during image formation, and outputs a DC bias as the charging bias during a non-image forming operation, the AC bias being obtained by superimposing an alternating current voltage and a direct current voltage, the image formation forming a latent image, the DC bias being a direct current voltage, the non-image forming operation rotating and driving the photoreceptor; a processor that performs predetermined processing on the photoreceptor; and a controller that controls the charging power supply and the processor such that a value of a potential difference of the photoreceptor before and after being charged by the DC bias is a value equal to or less than a setting value during the non-image forming operation.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: May 19, 2020
    Assignee: Konica Minolta, Inc.
    Inventors: Tsugihito Yoshiyama, Masayasu Haga, Sayaka Morita, Kunitomo Sasaki
  • Publication number: 20200133189
    Abstract: An image forming apparatus includes a latent image carrier whose rotational speed changes depending on a printing speed of an image onto a sheet, an applicator that applies a lubricant to a surface of the latent image carrier, and a hardware processor that causes a surface of the applicator to move such that a difference between a first moving speed and a second moving speed is within a certain range, the first moving speed being a speed at which the surface of the latent image carrier moves, the second moving speed being a speed at which the surface of the applicator moves.
    Type: Application
    Filed: October 11, 2019
    Publication date: April 30, 2020
    Applicant: KONICA MINOLTA, INC.
    Inventors: Kunitomo SASAKI, Masayasu HAGA, Sayaka MORITA, Tsugihito YOSHIYAMA
  • Publication number: 20200103780
    Abstract: An image forming apparatus includes: a photoreceptor; a charging member that charges the photoreceptor; a charging power supply that outputs an AC bias as a charging bias to be applied to the charging member during image formation, and outputs a DC bias as the charging bias during a non-image forming operation, the AC bias being obtained by superimposing an alternating current voltage and a direct current voltage, the image formation forming a latent image, the DC bias being a direct current voltage, the non-image forming operation rotating and driving the photoreceptor; a processor that performs predetermined processing on the photoreceptor; and a controller that controls the charging power supply and the processor such that a value of a potential difference of the photoreceptor before and after being charged by the DC bias is a value equal to or less than a setting value during the non-image forming operation.
    Type: Application
    Filed: August 23, 2019
    Publication date: April 2, 2020
    Applicant: KONICA MINOLTA, INC.
    Inventors: Tsugihito Yoshiyama, Masayasu Haga, Sayaka Morita, Kunitomo Sasaki
  • Patent number: 10440831
    Abstract: A conductive pattern formation method includes: a step of patterning a base member with an ink in which conductive particulates are distributed to form a pattern; a step of making a conductive developer act on the pattern; and a pressurization step of pressurizing the pattern.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: October 8, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Dai Suwama, Sayaka Morita, Keita Saito, Midori Shimomura
  • Patent number: 10162291
    Abstract: An image formation apparatus includes: a fixing belt wound on a plurality of support rollers including a first pressure applying roller; a second pressure applying roller applying a pressure to the first pressure applying roller and thus forming a nip portion N; a tension modifying mechanism adjusting a tension; a contact area adjustment mechanism adjusting a downstream contact area, which is a contact area of the fixing belt in contact with the first pressure applying roller that is located downstream of the nip portion N; a sheet information obtainer; and a controller controlling an operation of the tension modifying mechanism and an operation of the contact area adjustment mechanism. When sheet information indicates embossed paper, the controller adjusts the operation of the tension modifying mechanism and the operation of the contact area adjustment mechanism to reduce a tension exerted to the fixing belt and also reduce the downstream contact area.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: December 25, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Keita Saito, Sayaka Morita, Noboru Oomoto
  • Patent number: 10149393
    Abstract: There is provided a burning method of burning, on a base member, a precursor in which conductive particles are dispersed in a dispersion medium, and the burning method includes: a first pressurization step of pressurizing the precursor heated to a burning temperature or above; and a second pressurization step of pressurizing, after the first pressurization step, the precursor with a pressurization force higher than a pressurization force in the first pressurization step.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: December 4, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Sayaka Morita, Keita Saito, Dai Suwama, Midori Shimomura
  • Patent number: 9955585
    Abstract: A conductive pattern production device includes: a patterning unit that forms a pattern of a composite ink on a base member; and a burning unit that burns the pattern by high-frequency heating. The composite ink is obtained by mixing a particle material that is a material having a relative permeability of 200 or above or a carbon micro-coil and a conductive ink that has, after the burning, a resistivity of 1 to 2000 ??·cm.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: April 24, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Keita Saito, Midori Shimomura, Dai Suwama, Sayaka Morita
  • Patent number: 9927743
    Abstract: A fixing device is equipped with a lower pressure roller, an upper pressure roller and a fixing belt which fix a toner image onto a sheet, by holding and conveying the sheet by a nip portion, and a control unit which controls rotation of the lower pressure roller. The control unit periodically changes a velocity of rotational drive of the lower pressure roller, at a frequency of which a period is shorter than a time needed for the sheet to pass through the nip portion, when the sheet passes through the nip portion.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: March 27, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Noboru Oomoto, Tadayasu Sekioka, Sayaka Morita, Keita Saito
  • Patent number: 9874517
    Abstract: A processing apparatus includes: a light emission unit configured to emit light to a surface of a particle dispersed liquid applied to a base material, the particle dispersed liquid having particles dispersed in a solvent; a reflected light amount monitoring unit configured to detect an amount of the light reflected, and monitor a temporal variation of the detected value; and a condition adjustment unit configured to adjust a condition for a particle securing process, the particle securing process being performed to remove the solvent and secure the particles onto the base material, wherein, when the temporal variation falls within a predetermined range after the value has reached an extreme value, securing of the particles is determined to have been completed.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: January 23, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Keita Saito, Midori Shimomura, Dai Suwama, Sayaka Morita
  • Patent number: 9857740
    Abstract: An image forming apparatus includes: an image forming unit for forming a toner image and transferring the toner image to a sheet material; a fixing device for fixing the transferred toner image to the sheet material; a measurement device for measuring the gloss of the toner image fixed to the sheet material; a separator for separating the sheet material from the fixing device; and a controller which determines a performance of separating the sheet material from the fixing device based on an output from the measurement device and controls the operation of the separator.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: January 2, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Sayaka Morita, Shigeru Tashiro, Yoshihiro Murakoshi
  • Publication number: 20170261897
    Abstract: An image formation apparatus includes: a fixing belt wound on a plurality of support rollers including a first pressure applying roller; a second pressure applying roller applying a pressure to the first pressure applying roller and thus forming a nip portion N; a tension modifying mechanism adjusting a tension; a contact area adjustment mechanism adjusting a downstream contact area, which is a contact area of the fixing belt in contact with the first pressure applying roller that is located downstream of the nip portion N; a sheet information obtainer; and a controller controlling an operation of the tension modifying mechanism and an operation of the contact area adjustment mechanism. When sheet information indicates embossed paper, the controller adjusts the operation of the tension modifying mechanism and the operation of the contact area adjustment mechanism to reduce a tension exerted to the fixing belt and also reduce the downstream contact area.
    Type: Application
    Filed: March 8, 2017
    Publication date: September 14, 2017
    Inventors: Keita SAITO, Sayaka MORITA, Noboru OOMOTO
  • Publication number: 20170176903
    Abstract: A fixing device is equipped with a lower pressure roller, an upper pressure roller and a fixing belt which fix a toner image onto a sheet, by holding and conveying the sheet by a nip portion, and a control unit which controls rotation of the lower pressure roller. The control unit periodically changes a velocity of rotational drive of the lower pressure roller, at a frequency of which a period is shorter than a time needed for the sheet to pass through the nip portion, when the sheet passes through the nip portion.
    Type: Application
    Filed: December 16, 2016
    Publication date: June 22, 2017
    Applicant: Konica Minolta, Inc.
    Inventors: Noboru OOMOTO, Tadayasu SEKIOKA, Sayaka MORITA, Keita SAITO
  • Publication number: 20170045846
    Abstract: An image forming apparatus includes: an image forming unit for forming a toner image and transferring the toner image to a sheet material; a fixing device for fixing the transferred toner image to the sheet material; a measurement device for measuring the gloss of the toner image fixed to the sheet material; a separator for separating the sheet material from the fixing device; and a controller which determines a performance of separating the sheet material from the fixing device based on an output from the measurement device and controls the operation of the separator.
    Type: Application
    Filed: August 10, 2016
    Publication date: February 16, 2017
    Applicant: Konica Minolta, Inc.
    Inventors: Sayaka Morita, Shigeru Tashiro, Yoshihiro Murakoshi
  • Publication number: 20160027557
    Abstract: A conductive pattern production device includes: a patterning unit that forms a pattern of a composite ink on a base member; and a burning unit that burns the pattern by high-frequency heating. The composite ink is obtained by mixing a particle material that is a material having a relative permeability of 200 or above or a carbon micro-coil and a conductive ink that has, after the burning, a resistivity of 1 to 2000 ??·cm.
    Type: Application
    Filed: July 16, 2015
    Publication date: January 28, 2016
    Applicant: Konica Minolta, Inc.
    Inventors: Keita SAITO, Midori SHIMOMURA, Dai SUWAMA, Sayaka MORITA
  • Publication number: 20150382477
    Abstract: There is provided a burning method of burning, on a base member, a precursor in which conductive particles are dispersed in a dispersion medium, and the burning method includes: a first pressurization step of pressurizing the precursor heated to a burning temperature or above; and a second pressurization step of pressurizing, after the first pressurization step, the precursor with a pressurization force higher than a pressurization force in the first pressurization step.
    Type: Application
    Filed: June 17, 2015
    Publication date: December 31, 2015
    Applicant: KONICA MINOLTA, INC.
    Inventors: Sayaka MORITA, Keita SAITO, Dai SUWAMA, Midori SHIMOMURA
  • Publication number: 20150371740
    Abstract: A conductive pattern formation method includes: a step of patterning a base member with an ink in which conductive particulates are distributed to form a pattern; a step of making a conductive developer act on the pattern; and a pressurization step of pressurizing the pattern.
    Type: Application
    Filed: June 15, 2015
    Publication date: December 24, 2015
    Applicant: KONICA MINOLTA, INC.
    Inventors: Dai SUWAMA, Sayaka MORITA, Keita SAITO, Midori SHIMOMURA
  • Publication number: 20150268165
    Abstract: A processing apparatus includes: a light emission unit configured to emit light to a surface of a particle dispersed liquid applied to a base material, the particle dispersed liquid having particles dispersed in a solvent; a reflected light amount monitoring unit configured to detect an amount of the light reflected, and monitor a temporal variation of the detected value; and a condition adjustment unit configured to adjust a condition for a particle securing process, the particle securing process being performed to remove the solvent and secure the particles onto the base material, wherein, when the temporal variation falls within a predetermined range after the value has reached an extreme value, securing of the particles is determined to have been completed.
    Type: Application
    Filed: March 11, 2015
    Publication date: September 24, 2015
    Applicant: KONICA MINOLTA, INC.
    Inventors: Keita SAITO, Midori SHIMOMURA, Dai SUWAMA, Sayaka MORITA
  • Patent number: D852175
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: June 25, 2019
    Assignee: Okamura Corporation
    Inventor: Sayaka Morita
  • Patent number: D855106
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: July 30, 2019
    Assignee: Okamura Corporation
    Inventor: Sayaka Morita