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: 10539916Abstract: 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: GrantFiled: August 28, 2017Date of Patent: January 21, 2020Assignee: FUJI XEROX CO., LTD.Inventor: Jin Iwasaki
-
Patent number: 10481517Abstract: 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: GrantFiled: September 26, 2017Date of Patent: November 19, 2019Assignee: FUJI XEROX CO., LTD.Inventors: Jin Iwasaki, Ken Ozaki
-
Patent number: 10423092Abstract: 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: GrantFiled: March 8, 2018Date of Patent: September 24, 2019Assignee: FUJI XEROX CO., LTD.Inventors: Jin Iwasaki, Ken Ozaki
-
Publication number: 20190094742Abstract: 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: ApplicationFiled: March 8, 2018Publication date: March 28, 2019Applicant: FUJI XEROX CO., LTD.Inventors: Jin IWASAKI, Ken OZAKI
-
Patent number: 10175624Abstract: 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: GrantFiled: August 11, 2017Date of Patent: January 8, 2019Assignee: FUJI XEROX CO., LTD.Inventors: Jin Iwasaki, Ken Ozaki
-
Publication number: 20180275553Abstract: 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: ApplicationFiled: September 26, 2017Publication date: September 27, 2018Applicant: FUJI XEROX CO., LTD.Inventors: Jin IWASAKI, Ken OZAKI
-
Patent number: 10036972Abstract: 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: GrantFiled: July 31, 2017Date of Patent: July 31, 2018Assignee: FUJI XEROX CO., LTD.Inventor: Jin Iwasaki
-
Publication number: 20180101121Abstract: 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: ApplicationFiled: August 28, 2017Publication date: April 12, 2018Applicant: FUJI XEROX CO., LTD.Inventor: Jin IWASAKI
-
Publication number: 20180095392Abstract: 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: ApplicationFiled: August 11, 2017Publication date: April 5, 2018Applicant: FUJI XEROX CO., LTD.Inventors: Jin IWASAKI, Ken OZAKI
-
Patent number: 9823599Abstract: 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: GrantFiled: July 15, 2016Date of Patent: November 21, 2017Assignee: FUJI XEROX CO., LTD.Inventors: Hirotaka Tanaka, Tsutomu Sugimoto, Jin Iwasaki, Ken Ozaki
-
Publication number: 20170199479Abstract: 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: ApplicationFiled: July 15, 2016Publication date: July 13, 2017Applicant: FUJI XEROX CO., LTD.Inventors: Hirotaka TANAKA, Tsutomu SUGIMOTO, Jin IWASAKI, Ken OZAKI
-
Patent number: 9678456Abstract: 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: GrantFiled: March 17, 2016Date of Patent: June 13, 2017Assignee: FUJI XEROX CO., LTD.Inventor: Jin Iwasaki
-
Publication number: 20170160670Abstract: 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: ApplicationFiled: March 17, 2016Publication date: June 8, 2017Applicant: FUJI XEROX CO., LTD.Inventor: Jin IWASAKI
-
Patent number: 9436116Abstract: 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: GrantFiled: September 19, 2012Date of Patent: September 6, 2016Assignee: FUJI XEROX CO., LTD.Inventor: Jin Iwasaki
-
Patent number: 9383674Abstract: 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: GrantFiled: May 18, 2015Date of Patent: July 5, 2016Assignee: FUJI XEROX CO., LTD.Inventor: Jin Iwasaki
-
Publication number: 20160139530Abstract: 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: ApplicationFiled: May 18, 2015Publication date: May 19, 2016Applicant: FUJI XEROX CO., LTD.Inventor: Jin IWASAKI
-
Patent number: 9110400Abstract: 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: GrantFiled: February 20, 2013Date of Patent: August 18, 2015Assignee: FUJI XEROX CO., LTD.Inventors: Jin Iwasaki, Noriaki Kojima, Yoshinori Takahashi, Kei Tanaka
-
Patent number: 9025993Abstract: 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: GrantFiled: November 7, 2013Date of Patent: May 5, 2015Assignee: Fuji Xerox Co., Ltd.Inventors: Jin Iwasaki, Hirotaka Tanaka, Ken Ozaki
-
Publication number: 20140363194Abstract: 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: ApplicationFiled: November 7, 2013Publication date: December 11, 2014Applicant: Fuji Xerox Co., Ltd.Inventors: Jin IWASAKI, Hirotaka TANAKA, Ken OZAKI
-
Patent number: 8737883Abstract: 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: GrantFiled: October 9, 2012Date of Patent: May 27, 2014Assignee: Fuji Xerox Co., Ltd.Inventor: Jin Iwasaki