Patents by Inventor Tomoya Ichikawa

Tomoya Ichikawa 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).

  • Publication number: 20120163854
    Abstract: A discharger includes a discharger main body that is adapted to be attached to and detached from a holding member of an image forming apparatus, a first electrode member that is formed of a wire rod, a second electrode member, a voltage for discharge being applied between the first and second electrode members, an electrode cleaning member that cleans the first electrode member, a detected portion that is integrally disposed to the electrode cleaning member, a detecting member that detects the detected portion while the electrode cleaning member is in a predetermined reference position, a cleaning member conveyer that conveys the electrode cleaning member in both directions which toward and away from the reference position, and a movement control unit that controls a movement of the cleaning member conveyer by the conveyer.
    Type: Application
    Filed: June 2, 2011
    Publication date: June 28, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Akiko KIMURA, Kanji WATANABE, Yuzo ICHIKAWA, Tomoya ICHIKAWA
  • Patent number: 8195079
    Abstract: A collection device includes: a collection container that collects output material; a storage box that is opened upward to store a lower part of the collection container; and a support member that is fixed to a housing and supports the storage box so that the collection container is stored in the storage box and is freely drawn to the outside of the housing. The collection container includes a handle located frontward in a pulling direction and at an upper part of the collection container. The storage box includes a notch formed in a rear surface in the pulling direction. When the handle of the collection container is pressed backward in the pulling direction, a part of the collection container, which part is located backward in the pulling direction, protrudes from the storage box through the notch, so that the collection container inclines backward in the pulling direction.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: June 5, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Mihoko Tanaka, Tomoya Ichikawa, Satoshi Shigezaki, Tatsuya Soga
  • Publication number: 20120114365
    Abstract: An electrical connection structure includes a holder that holds an electric terminal provided with an electrical contact portion having elasticity and held such that the electrical contact portion is elastically deformable; a guiding member fitted to the holder and capable of guiding the holder in first and second directions, which are substantially orthogonal to each other, to move the electrical contact portion to a predetermined contact position on a conductive member, the first direction being a direction in which the electrical contact portion is elastically deformed by being pressed against the conductive member; and a restraining member that comes into contact with the holder that has been guided by the guiding member to move the electrical contact portion to the contact position, the restraining member restraining the holder from being moved in a direction opposite to the first direction by an elastic reaction force applied to the holder.
    Type: Application
    Filed: April 27, 2011
    Publication date: May 10, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Ryouta Kubo, Hirohisa Hoshino, Tomoya Ichikawa
  • Publication number: 20120114372
    Abstract: A detachable unit to be attached to a unit-receiving apparatus includes a unit body, a rotary member, an urging member urging the rotary member toward a downstream side in a detachable-unit-attaching direction, a contact-receiving portion provided on the rotary member, first and second support-receiving portions provided at respective ends of the rotary member, first and second supports provided at respective positions of the unit body corresponding to the positions of the first and second support-receiving portions, and first and second rotary support members provided between the first support-receiving portion and the first support and between the second support-receiving portion and the second support, respectively, and supporting the respective ends of the rotary member such that the rotary member is rotatable. The first and second rotary support members are supported in such a manner as to be movable in a detachable-unit-attaching-and-detaching direction.
    Type: Application
    Filed: May 26, 2011
    Publication date: May 10, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Taro MITSUI, Hirohisa HOSHINO, Tatsuya SOGA, Ryouta KUBO, Tomoya ICHIKAWA
  • Publication number: 20120114404
    Abstract: A cleaner includes a cleaning member that includes a tip portion that comes into contact with an image carrier that carries an image, and that removes and cleans developer adhered to the image carrier, a cleaning container which stores the developer removed by the cleaning member, a cleaning support that includes a cleaning supporting portion that supports a proximal end of the cleaning member, and a damped portion, a damping body that includes a first and a second damping bodies arranged in contact with the damped portion and that regulates vibration of the cleaning support, and a fixing member of the damping body that includes a first fixing portion arranged to face the damped portion with the first damping body, and a second fixing portion arranged to face the damped portion with the second damping body, and that is supported by the cleaning container.
    Type: Application
    Filed: April 21, 2011
    Publication date: May 10, 2012
    Applicant: FUJI XEROX CO. LTD.
    Inventors: Yuzo ICHIKAWA, Akiko KIMURA, Tomoya ICHIKAWA
  • Publication number: 20120082495
    Abstract: A cleaning unit includes: a cleaning member that cleans the surface of the image carrier; a cleaning container that stores developer removed by the cleaning member; a cleaning support that is formed by bending a plate and includes a cleaning-supporting portion supporting the other end portion of the cleaning member and a supported portion angled with respect to the cleaning-supporting portion by bending; a supporting-portion-of-support that includes a facing portion facing the supported portion, is provided at the cleaning container, and supports the cleaning support; a damping member that is disposed between the supported portion and the facing portion, is formed so as to be elastically deformable, and regulates vibration of the cleaning member; and a securing member that secures the cleaning support to the supporting-portion-of-support at a position adjacent to the damping member.
    Type: Application
    Filed: February 28, 2011
    Publication date: April 5, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Tomoya Ichikawa, Akiko Kimura, Yuzo Ichikawa, Takahiro Shinkawa, Masaaki Tokunaga, Tsuneo Fukuzawa, Hirohisa Hoshino, Satoshi Honobe
  • Publication number: 20120076559
    Abstract: A cleaner includes a cleaning member having a distal end in contact with an image carrier so as to remove developer attached to the image carrier, a cleaning container that stores the removed developer, a cleaning support body including a cleaning support portion extending from the distal end to a proximal end of the cleaning member so as to support the proximal end of the cleaning member, a bent portion bent from the cleaning support portion, and a supported portion supported by the cleaning container, a vibration-damping body in contact with an end of the bent portion opposite the cleaning support portion so as to regulate vibration of the cleaning support body, and a vibration-damping-body fixing member supported by the cleaning container and having a clamp portion that clamps the vibration-damping body between the vibration-damping-body fixing member and the end of the bent portion.
    Type: Application
    Filed: May 9, 2011
    Publication date: March 29, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Akiko KIMURA, Tomoya ICHIKAWA, Yuzo ICHIKAWA, Takahiro SHINKAWA, Hirohisa HOSHINO, Toshiyuki MATSUI
  • Patent number: 8135293
    Abstract: The image forming apparatus includes: an image forming section forming an image on a recording medium; an attachable and detachable storing container storing waste powder discarded and transported from the image forming section; a transport path for transporting the waste powder; a first discharging part allowed to be shut off and discharging the waste powder to an outside of the transport path; a second discharging part provided downstream of the first discharging part in a transporting direction and discharging the waste powder to the storing container; a powder storage part storing the waste powder when the storing container is removed; and a controller causing the shut first discharging part to be opened when the storing container is removed, and causing the waste powder to be discharged from the first discharging part. The powder storage part has capacity enough for storing the waste powder when the first discharging part is opened.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: March 13, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yoji Yamaguchi, Tomoya Ichikawa, Mihoko Tanaka
  • Patent number: 8135326
    Abstract: An image forming apparatus includes a developer housing that holds a developer; a lubricant supply brush that rotates when in contact with the developer housing, and that supplies a lubricant to a surface of the developer housing; a lubricant that is in contact with the lubricant supply brush; a first voltage supply unit that supplies an AC voltage on which a DC voltage is superimposed to the lubricant supply brush; a determination unit that determines whether or not a usage state of the developer housing is a state at an initial stage; and a controller that controls the first voltage supply unit to supply the AC voltage on which the DC voltage is superimposed to the lubricant supply brush, prior to start of execution of an image forming operation if the determination unit determines that the usage state of the developer housing is the state at the initial stage.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: March 13, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Shigeo Ohno, Tomoya Ichikawa, Yoji Yamaguchi, Kuniaki Tanaka
  • Patent number: 8131165
    Abstract: An image forming apparatus includes: an image forming section including first and second image forming parts each forming a toner image by using an image forming unit to be mounted, the first and the second image forming parts being inhibited from forming respective toner images if an image forming unit is not mounted to the first image forming part, the first image forming part being allowed to form a toner image if an image forming unit is mounted to the first image forming part while an image forming unit is not mounted to the second image forming part; and a transporting section including first and second receiving parts receiving waste powder discarded by the first and second image forming parts, respectively, and that transports the received waste powder. The second receiving part is provided downstream of the first receiving part in a transporting direction of the waste powder.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: March 6, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yoji Yamaguchi, Shigeo Ohno, Tomoya Ichikawa, Mihoko Tanaka
  • Patent number: 8116644
    Abstract: An image forming apparatus includes: an image forming section that forms an image on a recording medium; a storage container that is detachably and attachably provided and that stores waste powder having been discarded and transported from the image forming section; a first transporting section that transports, from the image forming section, the waste powder having been discarded in the image forming section; a transport path through which the waste powder having been transported by the first transporting section is caused to fall down and is transported; a second transporting section that transports, to the storage container, the waste powder having been transported through the transport path; and a controller that stops driving of the second transporting section if an operation set in advance is executed when the storage container is removed.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: February 14, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Tomoya Ichikawa
  • Patent number: 8116645
    Abstract: The image forming apparatus includes: an image forming section forming an image on a recording medium; first and second storing containers attachably and detachably provided and storing waste powder discarded from the image forming section; a first discharging part allowed to be shut off and discharging the waste powder to the first storing container; a second discharging part discharging the waste powder to the second storing container; a first transporting section transporting the waste powder to the first discharging part; a second transporting section transporting, toward the second discharging part, the waste powder transported to the first discharging part, when the first discharging part is shut off; and a controller shutting off the first discharging part and stopping the first transporting section or reducing an output of the first transporting section, when the first storing container is removed in a state where the first discharging part is opened.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: February 14, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yoji Yamaguchi, Tomoya Ichikawa, Mihoko Tanaka
  • Publication number: 20110318034
    Abstract: A maintenance system includes a maintenance device and a control device that controls the operation of the maintenance device. The control device is configured to activate the maintenance device automatically when a numerical value associated with the operation of a maintenance target device reaches a predetermined threshold value and to activate the maintenance device when it receives an instruction from a user. When the control device is instructed to activate the maintenance device by an instruction from the user, the control device changes the preset threshold value such that the operation interval of the maintenance device becomes smaller.
    Type: Application
    Filed: January 18, 2011
    Publication date: December 29, 2011
    Inventors: Akiko KIMURA, Tomoya Ichikawa
  • Publication number: 20110305471
    Abstract: An image forming device has: an image forming body on which an image is formed in a state in which the image forming body is charged; a charging device having plural discharge portions, and charging the image forming body by discharging of plural discharge portions; and a control section that, when forming the image on the image forming body, operates the plural discharge portions, and when not forming the image on the image forming body, switches between a state of operating some of the plural discharge portions and decreasing output of or stopping the discharge portions other than the some discharge portions, and a state of operating some other of the plural discharge portions and decreasing output of or stopping the discharge portions other than the some other discharge portions.
    Type: Application
    Filed: December 21, 2010
    Publication date: December 15, 2011
    Inventors: Tomoya Ichikawa, Akiko Kimura
  • Patent number: 8036586
    Abstract: The developer delivering device includes a first delivering path, a second delivering path, a helical delivering blade disposed in the second delivering path, and a developer breaking member disposed in a connecting portion of the first delivering path and the second delivering path. The developer breaking member includes a breaking portion disposed opposite to a side wall of the second delivering path in a developer delivering direction of the second delivering path, a contact portion that is in contact with the helical delivering blade and extended in the developer delivering direction between the breaking portion and a center of the rotation of the helical delivering blade, and a coupling portion. The breaking portion has a first breaking portion and a second breaking portion. The contact portion has a first contact portion and a second contact portion. The coupling portion couples the first contact portion to the second contact portion.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: October 11, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tomoya Ichikawa, Tatsuya Soga, Mihoko Tanaka, Satoshi Shigezaki
  • Patent number: 7965972
    Abstract: An image forming apparatus includes: an image forming section forming an image on a recording medium; first and second storage parts storing waste powder discarded from the image forming section; a transport path of the waste powder; first and second discharging parts provided on the transport path and discharging the waste powder to the first and second storage parts, respectively; a transporting section provided along the transport path between both discharging parts, and transporting the waste powder toward the second and first discharging parts in first and second operating states, respectively; a feeding section feeding the waste powder from the image forming section to the transport path between both discharging parts; and a controller making the transporting section operate in both operating states, and stopping the feeding section or reducing its output when switching a transporting direction of the waste powder by switching from the first to second operating state.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: June 21, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tomoya Ichikawa, Yoji Yamaguchi, Mihoko Tanaka
  • Patent number: 7835667
    Abstract: A discharger includes: a discharge electrode member that is placed opposedly to a member to be charged; an opposed electrode member that is placed opposedly to the discharge electrode member; and a power source circuit that applies a discharge voltage for generating a discharge between the discharge electrode member and the opposed electrode member, and the electrode member having a surface that includes a covered layer covered by a covering material is formed on a surface opposed thereto, and the covering material containing a carbon atom, or a carbon atom and another atom or other plural atoms as a main component, and having an SP3 structure by a carbon atom.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: November 16, 2010
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Shigeo Ohno, Tsutomu Sugimoto, Tomoya Ichikawa, Yasuo Takayama, Yoji Yamaguchi, Yoshitaka Kuroda, Tohru Inoue, Kuniaki Tanaka, Takahiro Shinkawa, Hiroki Murakami
  • Patent number: 7813690
    Abstract: A cleaning device removes a toner attached to an image carrier of an electrophotographic-type image forming apparatus. The cleaning device includes a cleaning blade, a housing and a block member. The cleaning blade is in contact with a surface of the image carrier to removes the toner. The housing stores the toner removed by the cleaning blade. The block member causes the toner to temporarily remain the toner in a vicinity of a distal end of the cleaning blade. The block member is formed of a sheet-shaped elastic member. One side of the block member is fixed to the housing. A repulsive force against bending in an end portion of the block member in a longitudinal direction is substantially smaller than a repulsive force against bending in a center portion of the block member.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: October 12, 2010
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tomoya Ichikawa, Shigeo Ohno, Masayuki Kono, Toshiyuki Matsui
  • Publication number: 20100247191
    Abstract: The developer delivering device includes a first delivering path, a second delivering path, a helical delivering blade disposed in the second delivering path, and a developer breaking member disposed in a connecting portion of the first delivering path and the second delivering path. The developer breaking member includes a breaking portion disposed opposite to a side wall of the second delivering path in a developer delivering direction of the second delivering path, a contact portion that is in contact with the helical delivering blade and extended in the developer delivering direction between the breaking portion and a center of the rotation of the helical delivering blade, and a coupling portion. The breaking portion has a first breaking portion and a second breaking portion. The contact portion has a first contact portion and a second contact portion. The coupling portion couples the first contact portion to the second contact portion.
    Type: Application
    Filed: August 28, 2009
    Publication date: September 30, 2010
    Inventors: Tomoya Ichikawa, Tatsuya Soga, Mihoko Tanaka, Satoshi Shigezaki
  • Publication number: 20100239341
    Abstract: A collection device includes: a collection container that collects output material; a storage box that is opened upward to store a lower part of the collection container; and a support member that is fixed to a housing and supports the storage box so that the collection container is stored in the storage box and is freely drawn to the outside of the housing. The collection container includes a handle located frontward in a pulling direction and at an upper part of the collection container. The storage box includes a notch formed in a rear surface in the pulling direction. When the handle of the collection container is pressed backward in the pulling direction, a part of the collection container, which part is located backward in the pulling direction, protrudes from the storage box through the notch, so that the collection container inclines backward in the pulling direction.
    Type: Application
    Filed: August 6, 2009
    Publication date: September 23, 2010
    Inventors: Mihoko Tanaka, Tomoya Ichikawa, Satoshi Shigezaki, Tatsuya Soga