Patents by Inventor Takahiko Ushiroji

Takahiko Ushiroji 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: 9561919
    Abstract: In a paper feeding cassette storing stacked sheets, a rotary lever adapted to rotate vertically about a rotation fulcrum is provided with a lift-up portion for lifting up the sheets as placed in contact with a bottom of the sheets stored in the paper feeding cassette. The lift-up portion is vertically turned by the rotary lever.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: February 7, 2017
    Assignee: KONICA MINOLTA, INC.
    Inventors: Shinji Yanase, Takahiko Ushiroji, Dong Zhang, Yoshitada Ichikawa
  • Publication number: 20140339762
    Abstract: In a paper feeding cassette storing stacked sheets, a rotary lever adapted to rotate vertically about a rotation fulcrum is provided with a lift-up portion for lifting up the sheets as placed in contact with a bottom of the sheets stored in the paper feeding cassette. The lift-up portion is vertically turned by the rotary lever.
    Type: Application
    Filed: May 13, 2014
    Publication date: November 20, 2014
    Applicant: Konica Minolta, Inc.
    Inventors: Shinji YANASE, Takahiko USHIROJI, Dong ZHANG, Yoshitada ICHIKAWA
  • Patent number: 7224914
    Abstract: There is described an image forming apparatus comprising a toner container installation section for mounting a toner container which stores the toner, a developing device which develops an electrostatic images formed on an image carrier based on an image information, an operating mechanism which is capable of moving the toner container from a mounting position in the toner container installation section in a predetermined direction when the toner stored in the toner container is not more than a first predetermined amount, and a movement detecting device which detects the movement of the toner container caused by the operating mechanism and outputs movement information.
    Type: Grant
    Filed: September 27, 2005
    Date of Patent: May 29, 2007
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Takahiko Ushiroji, Toshiro Iwabuchi
  • Publication number: 20060159472
    Abstract: There is described an image forming apparatus comprising a toner container installation section for mounting a toner container which stores the toner, a developing device which develops an electrostatic images formed on an image carrier based on an image information, an operating mechanism which is capable of moving the toner container from a mounting position in the toner container installation section in a predetermined direction when the toner stored in the toner container is not more than a first predetermined amount, and a movement detecting device which detects the movement of the toner container caused by the operating mechanism and outputs movement information.
    Type: Application
    Filed: September 27, 2005
    Publication date: July 20, 2006
    Inventors: Takahiko Ushiroji, Toshiro Iwabuchi
  • Patent number: 5937256
    Abstract: In a fixing oil coating apparatus for coating oil to an outer circumferential surface of a fixing roller for fixing a toner image of a recording sheet, the apparatus has an oil coating roller including a cylindrical porous member impregnated with oil therein, and a brush-shaped oil applying member fixed on an outer circumferential surface of the porous member. The brush-shaped oil applying member is brought into contact with the outer circumferential surface of the fixing roller so that the oil is coated to the fixing roller.
    Type: Grant
    Filed: December 12, 1997
    Date of Patent: August 10, 1999
    Assignee: Konica Corporation
    Inventors: Kazuhiro Nakazawa, Takeichi Shimada, Azusa Nakamura, Takahiko Ushiroji
  • Patent number: 5920759
    Abstract: An electrophotographic image forming apparatus having a sheet curl correcting mechanism includes: a rotary body including either an endless annular belt or a roller; and a pressing roller for pressing the rotary body, wherein the curled recording sheet on which a toner image is formed is inserted between the rotary body and the pressing roller thereby bending force is applied to the curled recording sheet in a direction opposite to a curl of the curled recording sheet so that the curl is corrected. The apparatus further includes an air flow generator for applying an air flow to a curled recording sheet and the sheet curl correcting mechanism.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: July 6, 1999
    Assignee: Konica Corporation
    Inventors: Takahiko Ushiroji, Ritsuo Fujii
  • Patent number: 5596397
    Abstract: An image forming apparatus, such as a copier or a printer, for forming an image on a recording sheet. The apparatus includes: a fixer for fixing the image on the recording sheet and having a heat roller. The fixer further includes: a pair of side ends in which a rotation axis of the heat roller passes through the pair of side ends; a heat pipe for regulating a temperature of the heat roller; and a conveyance path, having a reference position, for conveying the recording sheet in the fixing in which the recording sheet is conveyed along the reference position. In the fixer, the reference position is in a vicinity of one of side ends, and a center of the heat pipe in a direction of the rotation axis is positioned on the side end side with respect to a center of the heat roller.
    Type: Grant
    Filed: December 15, 1995
    Date of Patent: January 21, 1997
    Assignee: Konica Corporation
    Inventors: Takeichi Shimada, Takahiko Ushiroji