Patents by Inventor Jin Iwasaki

Jin Iwasaki 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: 10539916
    Abstract: An image forming apparatus includes an image holder; a developing device that creates a toner image by developing a latent image held on the image holder; and an application member that scrapes a lubricant from a solid lubricant and applies the scraped lubricant onto the image holder, wherein a surface of the application member is a fabric member that holds toner.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: January 21, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Jin Iwasaki
  • Patent number: 10481517
    Abstract: A cleaning member includes plural bristles including tips that come into contact with an object to be cleaned having a surface including recesses and projections; and a brush base to which the bristles are attached. The bristles each have a non-circular cross-section including a projecting portion that projects toward an outer periphery, at least the projecting portion having a size such that the projecting portion is capable of entering the recesses in the object to be cleaned.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: November 19, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Jin Iwasaki, Ken Ozaki
  • Patent number: 10423092
    Abstract: A cleaning member includes a first cleaning part formed of a porous material and a second cleaning part formed of a porous material. The first cleaning part includes first projections each having a size that enables the first projections to pass between projecting portions of an object to be cleaned having surface irregularities and to reach the bottom of recessed portions of the object to be cleaned. The second cleaning part includes second projections larger than the first projections. The cleaning member cleans the object to be cleaned by coming into contact with the object to be cleaned.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: September 24, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Jin Iwasaki, Ken Ozaki
  • Publication number: 20190094742
    Abstract: A cleaning member includes a first cleaning part formed of a porous material and a second cleaning part formed of a porous material. The first cleaning part includes first projections each having a size that enables the first projections to pass between projecting portions of an object to be cleaned having surface irregularities and to reach the bottom of recessed portions of the object to be cleaned. The second cleaning part includes second projections larger than the first projections. The cleaning member cleans the object to be cleaned by coming into contact with the object to be cleaned.
    Type: Application
    Filed: March 8, 2018
    Publication date: March 28, 2019
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Jin IWASAKI, Ken OZAKI
  • Patent number: 10175624
    Abstract: An image forming apparatus includes a rotatable image carrier that carries an image, a charging unit having a rotatable charging member that charges the image carrier, a developing unit that supplies a developer including at least toner to the charged image carrier, and a cleaning unit having a cleaning member that cleans a surface of the image carrier. At least when the image forming apparatus is not performing image formation, the charging member on which the toner from the image carrier is carried is caused to rotate at a peripheral velocity different from a peripheral velocity at which the image carrier rotates.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: January 8, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Jin Iwasaki, Ken Ozaki
  • Publication number: 20180275553
    Abstract: A cleaning member includes plural bristles including tips that come into contact with an object to be cleaned having a surface including recesses and projections; and a brush base to which the bristles are attached. The bristles each have a non-circular cross-section including a projecting portion that projects toward an outer periphery, at least the projecting portion having a size such that the projecting portion is capable of entering the recesses in the object to be cleaned.
    Type: Application
    Filed: September 26, 2017
    Publication date: September 27, 2018
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Jin IWASAKI, Ken OZAKI
  • Patent number: 10036972
    Abstract: A charger includes a roller-shaped charging member and a contact width varying device. The charging member is in contact with a surface of an image holding member so as to charge the surface of the image holding member. The contact width varying device varies in an axial direction of the image holding member a contact width of the charging member with the image holding member so as to decrease uneven wear occurring in the axial direction of the image holding member.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: July 31, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Jin Iwasaki
  • Publication number: 20180101121
    Abstract: An image forming apparatus includes an image holder; a developing device that creates a toner image by developing a latent image held on the image holder; and an application member that scrapes a lubricant from a solid lubricant and applies the scraped lubricant onto the image holder, wherein a surface of the application member is a fabric member that holds toner.
    Type: Application
    Filed: August 28, 2017
    Publication date: April 12, 2018
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Jin IWASAKI
  • Publication number: 20180095392
    Abstract: An image forming apparatus includes a rotatable image carrier that carries an image, a charging unit having a rotatable charging member that charges the image carrier, a developing unit that supplies a developer including at least toner to the charged image carrier, and a cleaning unit having a cleaning member that cleans a surface of the image carrier. At least when the image forming apparatus is not performing image formation, the charging member on which the toner is carried is caused to rotate at a peripheral velocity different from a peripheral velocity at which the image carrier rotates.
    Type: Application
    Filed: August 11, 2017
    Publication date: April 5, 2018
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Jin IWASAKI, Ken OZAKI
  • Patent number: 9823599
    Abstract: A light guide body that extends in a rod shape and guides light incident from an end surface thereof to emit the light from a circumferential surface thereof, the light guide body having a shape such that according to an angle of a circumferential direction around the light guide body, an amount of emitting light in a direction of the angle is different. Additionally, a static elimination device and an image forming apparatus include the light guide body.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: November 21, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Hirotaka Tanaka, Tsutomu Sugimoto, Jin Iwasaki, Ken Ozaki
  • Publication number: 20170199479
    Abstract: There is provided a light guide body that extends in a rod shape and guides light incident from an end surface thereof to emit the light from a circumferential surface thereof, the light guide body having a shape such that according to an angle of a circumferential direction around the light guide body, an amount of emitting light in a directoin of the angle is different. There is also provided a static elimination device and an image forming apparatus which include the light guide body.
    Type: Application
    Filed: July 15, 2016
    Publication date: July 13, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Hirotaka TANAKA, Tsutomu SUGIMOTO, Jin IWASAKI, Ken OZAKI
  • Patent number: 9678456
    Abstract: An image forming unit includes an image carrier; a first roller that is in contact with and charges the image carrier; a second roller that is in contact with the first roller and obtains toner from or supplies toner to the first roller; an exposure section that irradiates the charged image carrier with light to form an electrostatic latent image; a development section that develops the electrostatic latent image to form a toner image; a transfer section that transfers the toner image to a transfer member; a control section that performs control such that the toner moves from the image carrier to the first roller and to the second roller or such that the toner to moves from the second roller to the first roller and to the image carrier; and a collecting member that collects the toner that has moved from the first roller to the image carrier.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: June 13, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Jin Iwasaki
  • Publication number: 20170160670
    Abstract: An image forming unit includes an image carrier; a first-roller that is in contact with and charges the image carrier; a second roller that is in contact with the first roller and obtains toner from or supplies toner to the first roller; an exposure section that irradiates the charged image carrier with light to form an electrostatic latent image; a development section that develops the electrostatic latent image to form a toner image; a transfer section that transfers the toner image to a transfer member; a control section that performs control such that the toner moves from the image carrier to the first roller and to the second roller or such that the toner to moves from the second roller to the first roller and to the image carrier; and a collecting member that collects the toner that has moved from the first roller to the image carrier.
    Type: Application
    Filed: March 17, 2016
    Publication date: June 8, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Jin IWASAKI
  • Patent number: 9436116
    Abstract: A charging device includes a charging member including an endless cylindrical flexible base member and conductive contactors provided along an outer peripheral surface of the base member, the charging member being attracted to a charged member in a pressure applied state by electrostatic attraction force responsive to a charging voltage applied to the charging member or by the electrostatic attraction force and self-weight of the charging member, the charging member charging the charged member; and a voltage applying member that applies the charging voltage to the charging member.
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: September 6, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Jin Iwasaki
  • Patent number: 9383674
    Abstract: A conducting brush includes a substantially cylindrical insulating film base; and a conducting fiber adhering to an outer peripheral surface of the insulating film base through a conducting adhesive or a conducting adhesive medium. An outer peripheral portion where the conducting fiber adheres and at least a portion of an inner peripheral portion of the insulating film base have electrical continuity through the conducting adhesive or the conducting adhesive medium.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: July 5, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Jin Iwasaki
  • Publication number: 20160139530
    Abstract: A conducting brush includes a substantially cylindrical insulating film base; and a conducting fiber adhering to an outer peripheral surface of the insulating film base through a conducting adhesive or a conducting adhesive medium. An outer peripheral portion where the conducting fiber adheres and at least a portion of an inner peripheral portion of the insulating film base have electrical continuity through the conducting adhesive or the conducting adhesive medium.
    Type: Application
    Filed: May 18, 2015
    Publication date: May 19, 2016
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Jin IWASAKI
  • Patent number: 9110400
    Abstract: A charging member includes a contact section and a supported section. The contact section is in contact with a charged body. The supported section is integrated with the contact section and is supported by a support member. The supported section has a lower hardness than the contact section.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: August 18, 2015
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Jin Iwasaki, Noriaki Kojima, Yoshinori Takahashi, Kei Tanaka
  • Patent number: 9025993
    Abstract: A cleaning brush includes bristles that have ends which come into contact with an object to be cleaned having irregularities on a surface thereof, and a brush base on which the bristles are arranged. The bristles include first bristles and second bristles. The first bristles have a thickness too great to reach bottoms of recessed portions of the irregularities on the surface of the object to be cleaned. The second bristles have a thickness small enough to reach the bottoms of the recessed portions of the irregularities on the surface of the object to be cleaned.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: May 5, 2015
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Jin Iwasaki, Hirotaka Tanaka, Ken Ozaki
  • Publication number: 20140363194
    Abstract: A cleaning brush includes bristles that have ends which come into contact with an object to be cleaned having irregularities on a surface thereof, and a brush base on which the bristles are arranged. The bristles include first bristles and second bristles. The first bristles have a thickness too great to reach bottoms of recessed portions of the irregularities on the surface of the object to be cleaned. The second bristles have a thickness small enough to reach the bottoms of the recessed portions of the irregularities on the surface of the object to be cleaned.
    Type: Application
    Filed: November 7, 2013
    Publication date: December 11, 2014
    Applicant: Fuji Xerox Co., Ltd.
    Inventors: Jin IWASAKI, Hirotaka TANAKA, Ken OZAKI
  • Patent number: 8737883
    Abstract: A charging device includes a charging member that is rotatably provided in contact with a surface of a charge member, and that charges the surface of the charge member with contactors thereof. The contactors contact the surface of the charging member at charging areas. Directions of inclinations of the contactors differ in accordance with the charging areas.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: May 27, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Jin Iwasaki