Patents by Inventor Jun Sawamura

Jun Sawamura 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: 20120153567
    Abstract: A conveyance device includes: a rotary member that rotates; a driven member that rotates in accordance with the rotary member and conveys a conveyed material while holding the conveyed material between the driven member and the rotary member; a guide part provided on an upstream side from a rotary shaft of the driven member in a conveyance direction of the conveyed material, that guides the driven member toward the rotary member; and a support member that brings the rotary shaft of the driven member into contact with the guide part, and along with the guide part, supports the rotary shaft.
    Type: Application
    Filed: May 26, 2011
    Publication date: June 21, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Jun SAWAMURA, Hideki SATO, Hiroshi KON
  • Publication number: 20120020696
    Abstract: A fixing device includes: a fixing device main body; a heating member that is installed in the fixing device main body and heats a developer image transferred to a recording medium; and a power line that supplies power to the heating member, the fixing device main body including a first retaining part and a second retaining part formed following the first retaining part, and the heating member being retained by the first retaining part and the power line being retained by the second retaining part.
    Type: Application
    Filed: February 15, 2011
    Publication date: January 26, 2012
    Inventors: Hiroshi KON, Hideki SATO, Jun SAWAMURA
  • Publication number: 20120020701
    Abstract: An image forming apparatus includes: an image forming apparatus main body; an opening and closing part that is attached to the image forming apparatus main body in an openable and closeable manner; and a fixing device that is removably installed in the image forming apparatus main body to fix a developer image onto a recording medium, the opening and closing part being provided with an engaging portion to engage with an engaged portion defined on the image forming apparatus main body, and the engaging portion including a pressing part that presses the fixing device toward a proper position when a part of the fixing device is positioned in a movement locus of the engaging portion during a closing movement of the opening and closing part.
    Type: Application
    Filed: February 23, 2011
    Publication date: January 26, 2012
    Inventors: Hideki SATO, Hiroshi Kon, Jun Sawamura
  • Publication number: 20110052259
    Abstract: A fixing device includes a heating member disposed with an internal heating source and a pressuring member that presses against the heating member. The fixing device is configured to be attachable to and detachable from an image forming apparatus body, and includes: brackets that retain the heating member; pressuring levers that retain the pressuring member and are movably supported in the brackets; urging means that push the pressuring levers in a direction where the pressuring member presses against the heating member; and cams that are rotatably supported in the brackets, contact the pressuring levers, and adjust the pressuring force of the pressuring member.
    Type: Application
    Filed: November 9, 2010
    Publication date: March 3, 2011
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Jun Sawamura, Masaharu Inaba, Hideki Sato, Yasuo Suzuki, Hitoshi Nanba
  • Publication number: 20110052260
    Abstract: A fixing device includes a heating member disposed with an internal heating source and a pressuring member that presses against the heating member. The fixing device is configured to be attachable to and detachable from an image forming apparatus body, and includes: brackets that retain the heating member; pressuring levers that retain the pressuring member and are movably supported in the brackets; urging means that push the pressuring levers in a direction where the pressuring member presses against the heating member; and cams that are rotatably supported in the brackets, contact the pressuring levers, and adjust the pressuring force of the pressuring member.
    Type: Application
    Filed: November 9, 2010
    Publication date: March 3, 2011
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Jun Sawamura, Masaharu Inaba, Hideki Sato, Yasuo Suzuki, Hitoshi Nanba
  • Patent number: 7894734
    Abstract: A fixing device includes a heating member disposed with an internal heating source and a pressuring member that presses against the heating member. The fixing device is configured to be attachable to and detachable from an image forming apparatus body, and includes: brackets that retain the heating member; pressuring levers that retain the pressuring member and are movably supported in the brackets; urging means that push the pressuring levers in a direction where the pressuring member presses against the heating member; and cams that are rotatably supported in the brackets, contact the pressuring levers, and adjust the pressuring force of the pressuring member.
    Type: Grant
    Filed: February 13, 2006
    Date of Patent: February 22, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Jun Sawamura, Masaharu Inaba, Hideki Sato, Yasuo Suzuki, Hitoshi Nanba
  • Publication number: 20070019977
    Abstract: A fixing device includes a heating member disposed with an internal heating source and a pressuring member that presses against the heating member. The fixing device is configured to be attachable to and detachable from an image forming apparatus body, and includes: brackets that retain the heating member; pressuring levers that retain the pressuring member and are movably supported in the brackets; urging means that push the pressuring levers in a direction where the pressuring member presses against the heating member; and cams that are rotatably supported in the brackets, contact the pressuring levers, and adjust the pressuring force of the pressuring member.
    Type: Application
    Filed: February 13, 2006
    Publication date: January 25, 2007
    Inventors: Jun Sawamura, Masaharu Inaba, Hideki Sato, Yasuo Suzuki, Hitoshi Nanba
  • Patent number: 6061546
    Abstract: In a cleaning apparatus, a film as a guide plate for guiding cleaned toner into the apparatus is bonded to a holder, which is screwed to a housing. The screwing is loosened by a predetermined amount for providing a gap between the holder and the housing. If the housing and the seal member are thermally expanded by heat from a fuser during the operation of a image formation apparatus and a difference occurs between the expansion amounts of the housing and the holder, the gap absorbs the expansion amount difference and a force of warp, distortion, etc., does not act on the holder. Therefor, deformation of the film held by the holder can be prevented and trouble such as toner not being guided into the apparatus and scatters can be prevented.
    Type: Grant
    Filed: March 22, 1999
    Date of Patent: May 9, 2000
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Jun Sawamura, Ryouichi Tsuruoka, Satoshi Matsuzaka
  • Patent number: 5289383
    Abstract: In a method for generating data defining the machining depth along a tool path, grid points are generated according to split points indicating a form of a model, and rough machining data for contour milling is generated according to the grid points, so that rough machining data which presents overcutting can be prepared. Contour points are generated and drilling points are set according to a comparison with cut planes so that the drilling points can be set easily and automatically. The contour points are retrieved successively so as to easily generate a tool path for contour milling.
    Type: Grant
    Filed: March 4, 1993
    Date of Patent: February 22, 1994
    Assignee: Sony Corporation
    Inventors: Jun Sawamura, Tetsuzo Kuragano
  • Patent number: 5247451
    Abstract: A method for generating data defining a tool path for a numerically controlled machine is designed for generating machining tool path data without establishing offset plane data so that the machining tool path depth data can be established for discontinuous, surfaced, offset planes which might otherwise cause interference in the tool path. The method includes the steps of forming a plurality of patches defining a three-dimensional plane to be machined, subdividing each patch into a predetermined number of segments as divided by a plurality of dividing points, with the number of segments being variable depending upon the distance between adjacent dividing points so that the distance is maintained to be smaller than the machining area of a machine tool. The machining depth at each dividing point within the tool path is derived with respect to the maximum height position at which the machining tool comes into contact with the dividing point.
    Type: Grant
    Filed: January 17, 1991
    Date of Patent: September 21, 1993
    Assignee: Sony Corporation
    Inventors: Jun Sawamura, Tetsuzo Kuragano