Patents by Inventor Yuki Nagamori

Yuki Nagamori 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: 8676091
    Abstract: A charging device includes a discharge electrode that extends along a rotational axis direction of a member to be charged that rotates and has an arc-shaped outer peripheral surface, the discharge electrode being arranged to face the outer peripheral surface; a potential control plate arranged between the outer peripheral surface of the member to be charged and the discharge electrode and extending in the rotational axis direction of the member to be charged, the potential control plate being plastically deformed so as to independently maintain the shape of the potential control plate; and a support member that supports the potential control plate only at both end portions of the potential control plate in a long-side direction of the potential control plate.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: March 18, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Koji Otsuka, Yuki Nagamori, Arichika Tanaka, Tomoyoshi Chihara
  • Patent number: 8666287
    Abstract: A cleaning device includes a cleaning member provided at a first side of a curved grid electrode plate that is curved in a short-side direction, the cleaning member being pressed against the curved grid electrode plate to clean the first side thereof; a receiving member provided at a second side of the curved grid electrode plate, the receiving member receiving a pressing load applied by the cleaning member; and a moving unit that moves the cleaning member and the receiving member in a long-side direction of the curved grid electrode plate. The cleaning member and the receiving member are formed such that a pressure based on the load that is applied to an end portion of the curved grid electrode plate in the short-side direction is higher than that applied to a central portion of the curved grid electrode plate in the short-side direction.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: March 4, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kosuke Yamada, Yuki Nagamori
  • Publication number: 20130279939
    Abstract: A grid electrode that is substantially thin-plate-shaped includes an opening section in which plural openings are formed and a frame section that surrounds the opening section. The grid electrode is curved along a short-side direction thereof and includes portions having different thicknesses, the portions being arranged in the short-side direction.
    Type: Application
    Filed: December 21, 2012
    Publication date: October 24, 2013
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yuki NAGAMORI, Koji OTSUKA
  • Publication number: 20130165036
    Abstract: Provided is a blower pipe with an inlet, an outlet, a passage part formed with a passage space to cause air to flow therein, and suppressing parts that are provided in different parts in a direction in which air in the passage space of the passage part is caused to flow and that suppress the flow of the air, wherein an outlet suppressing part constructed so that the passage space in the outlet is closed by a permeable member dotted with ventilation portions is provided in the outlet of the passage part as one of the suppressing parts, and wherein the permeability of an end region present at least at one end in the lateral direction orthogonal to the longitudinal direction among regions along the longitudinal direction of the opening shape of the outlet is set to a smaller value than the permeability of regions other than the end region.
    Type: Application
    Filed: April 13, 2012
    Publication date: June 27, 2013
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Masafumi KUDO, Koji OTSUKA, Yuki NAGAMORI, Kazuki INAMI, Yasunori MOMOMURA
  • Publication number: 20130153764
    Abstract: Provided is an air supply tube including an inlet port that takes in air, an outlet port that is arranged opposite a portion of an elongated target structure in a longitudinal direction, to which air taken in from the inlet port is to be supplied, and has an elongated opening shape, a channel portion in which a channel space for allowing air to flow between the inlet port and the outlet port is formed, and plural suppressing portions that suppress the flow of air, wherein the plural suppressing portions include at least a most downstream suppressing portion, a first upstream suppressing portion that is provided in a part initially located on the upstream side in the air flow direction, and a gap regulating portion that forms an extended gap at the same interval.
    Type: Application
    Filed: April 5, 2012
    Publication date: June 20, 2013
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yasunori MOMOMURA, Kazuki INAMI, Yuki NAGAMORI, Koji OTSUKA, Masafumi KUDO
  • Publication number: 20130108307
    Abstract: A blowing device includes a blower that blows air and an air duct including an inlet and an outlet. The air duct takes in the air through the inlet and guiding the air so that the air flows out through the outlet toward a corona discharge unit including a target component toward which the air is to be blown. The outlet of the air duct includes a through-portion in a non-overlapping region thereof, the non-overlapping region being a region of the outlet excluding an overlapping region of the outlet. The overlapping region corresponds to an interposed component of the corona discharge unit, the interposed component being located between the outlet and the target component at a position at which the interposed component overlaps the overlapping region.
    Type: Application
    Filed: May 14, 2012
    Publication date: May 2, 2013
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Masahiro KATAHIRA, Yuki NAGAMORI
  • Publication number: 20130101309
    Abstract: A blowing device includes a blower and an air duct including an inlet, an outlet, and a body. The outlet faces a longitudinal portion of an oblong target structure toward which air is blown. The outlet allows air to be discharged in a direction that is substantially perpendicular to a longitudinal direction in which the longitudinal portion extends. The inlet has an opening and the outlet has an oblong opening, and the opening of the inlet and the opening of the outlet having different shapes. The body has a passage space formed therein. Plural restraining portions that restrain airflow are disposed at different positions in the passage space in the direction of airflow. A most downstream one of the restraining portions is formed so as to at least partially cover the passage space with an air-permeable member having plural air passage portions that are distributed the air-permeable member.
    Type: Application
    Filed: May 3, 2012
    Publication date: April 25, 2013
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kazuki INAMI, Yasunori MOMOMURA, Yuki NAGAMORI, Koji OTSUKA, Masafumi KUDO
  • Publication number: 20120251180
    Abstract: A charging device includes a discharge electrode that extends along an axial direction of a member to be charged; and a potential control plate disposed between the member to be charged and the discharge electrode and curved along a peripheral surface of the member to be charged. The potential control plate includes three or more structural lines that are arranged in a circumferential direction of the member to be charged and that linearly extend along the axial direction, and connecting portions arranged in the axial direction, each connecting portion connecting two or more of the three or more structural lines to each other, the two or more structural lines being next to each other in the circumferential direction. The structural lines connected by one of the connecting portions and those connected by another one of the connecting portions are at least partly different from each other.
    Type: Application
    Filed: September 21, 2011
    Publication date: October 4, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yuki NAGAMORI, Koji OTSUKA, Kuniaki TANAKA, Arichika TANAKA
  • Publication number: 20120230732
    Abstract: A charging device includes a discharge electrode that extends along a rotational axis direction of a member to be charged that rotates and has an arc-shaped outer peripheral surface, the discharge electrode being arranged to face the outer peripheral surface; a potential control plate arranged between the outer peripheral surface of the member to be charged and the discharge electrode and extending in the rotational axis direction of the member to be charged, the potential control plate being plastically deformed so as to independently maintain the shape of the potential control plate; and a support member that supports the potential control plate only at both end portions of the potential control plate in a long-side direction of the potential control plate.
    Type: Application
    Filed: July 28, 2011
    Publication date: September 13, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Koji OTSUKA, Yuki NAGAMORI, Arichika TANAKA, Tomoyoshi CHIHARA
  • Publication number: 20120230721
    Abstract: A cleaning device includes a cleaning member provided at a first side of a curved grid electrode plate that is curved in a short-side direction, the cleaning member being pressed against the curved grid electrode plate to clean the first side thereof; a receiving member provided at a second side of the curved grid electrode plate, the receiving member receiving a pressing load applied by the cleaning member; and a moving unit that moves the cleaning member and the receiving member in a long-side direction of the curved grid electrode plate. The cleaning member and the receiving member are formed such that a pressure based on the load that is applied to an end portion of the curved grid electrode plate in the short-side direction is higher than that applied to a central portion of the curved grid electrode plate in the short-side direction.
    Type: Application
    Filed: August 1, 2011
    Publication date: September 13, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kosuke YAMADA, Yuki NAGAMORI
  • Patent number: 8095060
    Abstract: A cleaning device includes a cleaning blade that contacts an image carrier and cleans residual toner remaining on the image carrier; a toner pool forming member that is disposed on an upstream side of the cleaning blade in a rotational direction of the image carrier, collects the residual toner that has been cleaned, and forms a toner pool that contacts the cleaning blade and the image carrier; and a toner amount adjusting component that makes the pressure of the residual toner that acts on the image carrier substantially uniform across an axis-of-rotation direction of the image carrier by adjusting the amount of the residual toner in the toner pool in the axis-of-rotation direction of the image carrier.
    Type: Grant
    Filed: July 16, 2008
    Date of Patent: January 10, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yutaka Kiuchi, Satoshi Shigezaki, Satoya Sugiura, Ayumi Noguchi, Takayuki Yamashita, Mitsuo Yamamoto, Masaya Nakatsuhara, Yuki Nagamori, Mikio Yamaguchi
  • Patent number: 7917064
    Abstract: A charge roll includes a roll member that contacts an image carrier and rotates, the roll member including a conductive material that charges the surface of the image carrier, and the roll member having particles on the outer circumferential surface of the roll member to have a surface roughness within a predetermined range.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: March 29, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yuki Nagamori, Mikio Yamaguchi, Yasutomo Ishii, Mitsuo Yamamoto
  • Patent number: 7715737
    Abstract: A charge roll disposed in an image forming apparatus, for charging an image carrier for carrying an image, and to be cleaned by a cleaning member, the charge roll including: a shaft and an electrically conductive layer provided around the shaft, an axial end portion of the electrically conductive layer in an area in contact with the cleaning member being formed into skin layer portions thinner than other portions of the electrically conductive layer, is provided.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: May 11, 2010
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Masaaki Yamaura, Yuki Nagamori
  • Publication number: 20090097893
    Abstract: A cleaning device includes a cleaning blade that contacts an image carrier and cleans residual toner remaining on the image carrier; a toner pool forming member that is disposed on an upstream side of the cleaning blade in a rotational direction of the image carrier, collects the residual toner that has been cleaned, and forms a toner pool that contacts the cleaning blade and the image carrier; and a toner amount adjusting component that makes the pressure of the residual toner that acts on the image carrier substantially uniform across an axis-of-rotation direction of the image carrier by adjusting the amount of the residual toner in the toner pool in the axis-of-rotation direction of the image carrier.
    Type: Application
    Filed: July 16, 2008
    Publication date: April 16, 2009
    Inventors: Yutaka Kiuchi, Satoshi Shigezaki, Satoya Sugiura, Ayumi Noguchi, Takayuki Yamashita, Mitsuo Yamamoto, Masaya Nakatsuhara, Yuki Nagamori, Mikio Yamaguchi
  • Publication number: 20080131169
    Abstract: A charging device includes a charging member that contacts a member to be charged, charges the member with a predetermined voltage applied to the charging member, and includes a surface layer containing a resin solid and a conductive agent of approximately 10 wt. % or more with respect to the resin solid content.
    Type: Application
    Filed: July 13, 2007
    Publication date: June 5, 2008
    Inventors: Yuki Nagamori, Hiroyuki Miura
  • Publication number: 20080075505
    Abstract: A charge roll comprises a roll member that contacts an image carrier and rotates, the roll member comprising a conductive material that charges the surface of the image carrier, and the roll member having particles on the outer circumferential surface of the roll member to have a surface roughness within a predetermined range.
    Type: Application
    Filed: September 20, 2007
    Publication date: March 27, 2008
    Inventors: Yuki Nagamori, Mikio Yamaguchi, Yasutomo Ishii, Mitsuo Yamamoto
  • Publication number: 20070242964
    Abstract: A charge roll disposed in an image forming apparatus, for charging an image carrier for carrying an image, and to be cleaned by a cleaning member, the charge roll including: a shaft and an electrically conductive layer provided around the shaft, an axial end portion of the electrically conductive layer in an area in contact with the cleaning member being formed into skin layer portions thinner than other portions of the electrically conductive layer, is provided.
    Type: Application
    Filed: December 4, 2006
    Publication date: October 18, 2007
    Inventors: Masaaki Yamaura, Yuki Nagamori
  • Publication number: 20070092289
    Abstract: An image forming apparatus includes a charge roll which charges a body to be charged by contact charge, and a roll-like sponge member which is supported such that it comes into contact with a surface of the charge roll and which is rotated together with the charge roll. The roll-like sponge member and the charge roll have physical characteristics such that a surface of the charge roll is scraped away by contact with the roll-like sponge member.
    Type: Application
    Filed: June 29, 2006
    Publication date: April 26, 2007
    Inventors: Yuki Nagamori, Kenji Inoue, Yusuke Kitagawa, Masato Serizawa
  • Patent number: 6684042
    Abstract: In order to solve the problem, there is provided a charging device having: a roll-like charging member disposed in contact with a surface of a member to be charged and for charging the surface of the member to be charged; wherein: the charging member includes a conductive substrate, and at least an elastic layer and a surface layer applied sequentially onto a surface of the conductive substrate; and opposite end portions of the surface layer axially project beyond opposite end portions of the elastic layer respectively, while the opposite end portions of the surface layer are made to cover the elastic layer and made open.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: January 27, 2004
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yuki Nagamori, Yutaka Kanai, Yasuo Takayama, Yasutomo Ishii
  • Publication number: 20030095812
    Abstract: In order to solve the problem, there is provided a charging device having: a roll-like charging member disposed in contact with a surface of a member to be charged and for charging the surface of the member to be charged; wherein: the charging member includes a conductive substrate, and at least an elastic layer and a surface layer applied sequentially onto a surface of the conductive substrate; and opposite end portions of the surface layer axially project beyond opposite end portions of the elastic layer respectively, while the opposite end portions of the surface layer are made to cover the elastic layer and made open.
    Type: Application
    Filed: March 15, 2002
    Publication date: May 22, 2003
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yuki Nagamori, Yutaka Kanai, Yasuo Takayama, Yasutomo Ishii