Patents by Inventor Shigeki NAIKI

Shigeki NAIKI 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: 10782640
    Abstract: An image forming device that forms a toner image on a surface of a photoreceptor, transfers the toner image to a recording material and outputs a printed recording material, includes: an intermediate transfer body that primarily transfers the toner image on the photoreceptor and secondarily transfers the toner image to the recording material; a cleaner that removes a toner left on the surface of the photoreceptor; a patch forming unit that forms a toner patch between two adjacent toner images when multiple toner images are continuously formed on the surface of the photoreceptor; a concentration detector that detects concentration of the toner patch primarily transferred to the intermediate transfer body from the photoreceptor; and a patch adjuster that adjusts toner amount used for forming the toner patch based on a result detected by the concentration detector.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: September 22, 2020
    Assignee: KONICA MINOLTA, INC.
    Inventors: Hironori Akashi, Soh Hirota, Shigeki Naiki
  • Patent number: 10613452
    Abstract: An image forming apparatus includes: an image forming part that forms a toner image on a recording medium; and a hardware processor that controls the image forming part, wherein the image forming part includes an image carrier, the hardware processor executes: a first adjustment process of adjusting the image forming part with use of a first image formation condition determined in accordance with a toner adhesion amount at a plurality of points in a first direction on the image carrier; and a second adjustment process of adjusting the image forming part with use of a second image formation condition determined in accordance with a toner adhesion amount at one point in a first direction on the image carrier, the image carrier rotates as a recording medium is conveyed, the first direction is a direction intersecting with a rotational direction of the image carrier.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: April 7, 2020
    Assignee: KONICA MINOLTA, INC.
    Inventors: Shigeki Naiki, Teppei Kunihisa, Soh Hirota, Hironori Akashi, Kenji Tsuru
  • Publication number: 20200081384
    Abstract: An image forming device that forms a toner image on a surface of a photoreceptor, transfers the toner image to a recording material and outputs, comprises: an intermediate transfer body that primarily transfers the toner image on the photoreceptor and secondarily transfers the toner image to the recording material; a cleaner that removes a toner left on the surface of the photoreceptor; a patch forming unit that forms a toner patch between two adjacent toner images when multiple toner images are continuously formed on the surface of the photoreceptor; a concentration detector that detects concentration of the toner patch primarily transferred to the intermediate transfer body from the photoreceptor; and a patch adjuster that adjusts toner amount used for forming the toner patch based on a result detected by the concentration detector.
    Type: Application
    Filed: September 6, 2019
    Publication date: March 12, 2020
    Inventors: Hironori AKASHI, Soh HIROTA, Shigeki NAIKI
  • Publication number: 20190278197
    Abstract: An image forming apparatus includes: an image forming part that forms a toner image on a recording medium; and a hardware processor that controls the image forming part, wherein the image forming part includes an image carrier, the hardware processor executes: a first adjustment process of adjusting the image forming part with use of a first image formation condition determined in accordance with a toner adhesion amount at a plurality of points in a first direction on the image carrier, and a second adjustment process of adjusting the image forming part with use of a second image formation condition determined in accordance with a toner adhesion amount at one point in a first direction on the image carrier, the image carrier rotates as a recording medium is conveyed, the first direction is a direction intersecting with a rotational direction of the image carrier.
    Type: Application
    Filed: February 5, 2019
    Publication date: September 12, 2019
    Inventors: SHIGEKI NAIKI, TEPPEI KUNIHISA, SOH HIROTA, HIRONORI AKASHI, KENJI TSURU
  • Publication number: 20140010560
    Abstract: An image forming apparatus for forming a toner image on an image carrier, including: a patch former that forms a solid and a non-solid patch on the image carrier under different image formation conditions; a measurer that measures amounts of toner adhering to the solid and the non-solid patch; a determiner that determines image density properties indicating a relationship between an image formation condition and an amount of adhering toner, based on both (i) a relationship between an image formation condition applied to the solid patch and the amount of toner adhering to the solid patch, and (ii) a relationship between an image formation condition applied to the non-solid patch and the amount of toner adhering to the non-solid patch; and a setter that sets an appropriate image formation condition for forming a toner image having a desired density on the image carrier according to the image density properties.
    Type: Application
    Filed: July 1, 2013
    Publication date: January 9, 2014
    Inventors: Mitsuru OBARA, Shigeki NAIKI, Masahiro KOUZAKI, Munenori NAKANO
  • Patent number: 8543022
    Abstract: An image forming apparatus having an image carrier; an electrostatic latent image forming device that forms an electrostatic latent image on the image carrier; a development device having a housing section that stores toner therein, a stirring device for stirring the toner inside the housing section, and a toner, carrier that develops the electrostatic latent image into a toner image by imparting the toner to the image carrier; a voltage applying device that applies a development bias voltage between the image carrier and the toner carrier; a control device that makes the electrostatic latent image forming device and the development device form a test toner image on the image carrier; and a sensing device that senses a toner adhering amount of the test toner image.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: September 24, 2013
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Mitsuru Obara, Shigeki Naiki, Masahiro Kouzaki, Yusuke Mamiya
  • Patent number: 8422085
    Abstract: There are provided an image reader with high resolution capability for images in a high density range and an image forming apparatus. An image reader 2 comprises a reflected light reading unit (11, 12, 13, 14, 10) for irradiating a surface to be read of an original sheet with a light and reading the amount of the reflected light and a transmitted light reading unit (15, 12, 13, 14, 10) for irradiating the original sheet with a light and reading the amount of the transmitted light, and calculates the density of an image of the original sheet based on the amount of the reflected light read by the reflected light reading unit and the amount of the transmitted light read by the transmitted light reading unit.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: April 16, 2013
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Tetsuya Sakai, Masahiro Kouzaki, Shigeki Naiki
  • Publication number: 20110211852
    Abstract: An image forming apparatus having an image carrier; an electrostatic latent image forming device that forms an electrostatic latent image on the image carrier; a development device having a housing section that stores toner therein, a stirring device for stirring the toner inside the housing section, and a toner, carrier that develops the electrostatic latent image into a toner image by imparting the toner to the image carrier; a voltage applying device that applies a development bias voltage between the image carrier and the toner carrier; a control device that makes the electrostatic latent image forming device and the development device form a test toner image on the image carrier; and a sensing device that senses a toner adhering amount of the test toner image.
    Type: Application
    Filed: February 14, 2011
    Publication date: September 1, 2011
    Applicant: Konica Minolta Business Technologies, Inc.
    Inventors: Mitsuru Obara, Shigeki Naiki, Masahiro Kouzaki, Yusuke Mamiya
  • Publication number: 20090316229
    Abstract: There are provided an image reader with high resolution capability for images in a high density range and an image forming apparatus. An image reader 2 comprises a reflected light reading unit (11, 12, 13, 14, 10) for irradiating a surface to be read of an original sheet with a light and reading the amount of the reflected light and a transmitted light reading unit (15, 12, 13, 14, 10) for irradiating the original sheet with a light and reading the amount of the transmitted light, and calculates the density of an image of the original sheet based on the amount of the reflected light read by the reflected light reading unit and the amount of the transmitted light read by the transmitted light reading unit.
    Type: Application
    Filed: June 19, 2009
    Publication date: December 24, 2009
    Applicant: Konica Minolta Business Technologies, Inc.
    Inventors: Tetsuya Sakai, Masahiro Kouzaki, Shigeki Naiki
  • Publication number: 20090311009
    Abstract: In a developer cartridge of toner and carrier, uneven distribution of the carrier at least in the vicinity of a replenishing port is eliminated regardless of the composition ratio between the carrier and the toner and the specific gravity of the carrier. Provided is a construction including a developer container in which a developer containing toner and carrier is received and which has a developing roller to supply the toner to an image carrier, a developer cartridge in which a replenishing developer containing the toner and the carrier is received and which has a replenishing port connected to the developer container to allow the developer container to be replenished with the developer via the replenishing port, and stirring means capable of stirring the developer located at least in the vicinity of the replenishing port in the developer cartridge.
    Type: Application
    Filed: March 10, 2009
    Publication date: December 17, 2009
    Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventors: Shigeki NAIKI, Hironori Akashi, Soh Hirota, Mitsuru Obara