Patents by Inventor Yuji Koga

Yuji Koga 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: 20120080834
    Abstract: An image recording apparatus including a first tray having a first holding portion for holding sheets, a second tray disposed above the first tray and including a second holding portion for holding sheets, a sheet feeder that selectively feeds a sheet from one of the first tray and the second tray in a sheet feed direction, a recording unit that records an image on the sheet fed by the sheet feeder, and a discharge roller that discharges the sheet on which the image is recorded by the recording unit. The second holding portion of the second tray moves above the first holding portion of the first tray. The second tray further includes a discharged sheet receiving portion for receiving the sheet discharged by the discharge roller. The second tray including the discharged sheet receiving portion pivots relative to the first tray.
    Type: Application
    Filed: December 8, 2011
    Publication date: April 5, 2012
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Yukio SHIOHARA, Tetsuo ASADA, Yuji KOGA
  • Patent number: 8133882
    Abstract: Provided are quinolone derivatives having a lower alkyl or cycloalkyl at the 1-position; —N(R0)C(O)-lower alkylene-CO2R0, lower alkylene-CO2R0, lower alkenylene-CO2R0, —O-lower alkylene-CO2R0, —O-(lower alkylene which may be substituted with —CO2R0)-aryl or —O-lower alkenylene-CO2R0 (wherein R0 is H or lower alkyl) at the 3-position; halogen at the 6-position; and amino group substituted with a substituent group having a ring structure at the 7-position, respectively, or pharmaceutically acceptable salts thereof. Pharmaceutical composition containing the quinolone derivatives and methods of using the compositions are provided.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: March 13, 2012
    Assignee: Astellas Pharma Inc
    Inventors: Yuji Koga, Takao Okuda, Susumu Watanuki, Takashi Kamikubo, Fukushi Hirayama, Hiroyuki Moritomo, Jiro Fujiyasu, Michihito Kageyama, Toshio Uemura, Jun Takasaki
  • Patent number: 8113502
    Abstract: A sheet feeding device includes: an arm member that is provided with a drive shaft at a base end thereof, the arm member being configured to swingably rotate around the drive shaft; a feed roller that is disposed at a leading end of the arm member, the feed roller feeding a sheet by being rotated while pressed on the uppermost sheet; and a transmission mechanism that is provided with one or more transmission rollers that transmit power provided from the drive shaft to the feed roller. Each of the transmission rollers is provided with a spindle that protrudes from both side faces thereof along an rotational axis. The arm member is provided with one or more pairs of bearing members for the respective transmission rollers, each of the pairs of the bearing members being faced with each other and being monolithically formed on the arm member.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: February 14, 2012
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Daisuke Kozaki, Yuji Koga
  • Patent number: 8109598
    Abstract: There is provided an image recording device, comprising first and second motors; first and second switch gears supported coaxially; first and second transmission gears, and wherein the first and second switch gears are provided to engage with corresponding ones of the first and second transmission gears in accordance with movement of the first and second switch gears in an axial direction, and the image recording device further comprises a control unit configured such that when the first switch gear and the second switch gear are moved in the axial direction, the control unit rotates one of the first and second motors by a first predetermined rotation amount, and starts the other of the first and second motors while the one of the first and second motors is rotated. The control unit rotates the other of the first and second motors by a second predetermined rotation amount.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: February 7, 2012
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kenji Samoto, Yuji Koga
  • Publication number: 20120001378
    Abstract: An image recording apparatus according to one aspect comprises: a first tray disposed within an opening of a main body to allow a recording medium to be placed thereon; a second tray disposed above the first tray, the second tray having a second end portion located on a side of the opening; a conveying unit; and a recording unit. The second tray is movable between a first posture and a second posture. When the second tray is in the first posture, a top surface of the second tray in the vicinity of the second end portion is positioned at a predetermined height relative to the first tray. When the second tray moves from the first posture to the second posture, the top surface in the vicinity of the second end portion is moved toward the first tray.
    Type: Application
    Filed: September 12, 2011
    Publication date: January 5, 2012
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Masatoshi IZUCHI, Yuji KOGA, Keisuke WAKAKUSA, Kenji SAMOTO
  • Publication number: 20110311294
    Abstract: There is provided an image recording apparatus including a transporting path, a recording section, a first and second rollers pinching the recording medium therebetween, a supporting member which rotatably supports the second roller, a holding member which is movable along a transporting direction of the recording medium, a bias applying member which applies a bias on the holding member, in an opposite direction opposite to the transporting direction and a load member which generates a load in the opposite direction, with respect to the recording medium.
    Type: Application
    Filed: February 23, 2011
    Publication date: December 22, 2011
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Noriyuki KAWAMATA, Yuji KOGA, Wataru SUGIYAMA, Kenji SAMOTO
  • Publication number: 20110309564
    Abstract: A printing device includes a first transporting mechanism driven by a first motor, a printing unit, a second transporting mechanism configured to transport the printing medium transported by first transporting mechanism and is performed image printing on a first surface thereof by the printing unit, to the first transporting mechanism. The first transporting mechanism includes first transporting rollers disposed at a position upstream of the printing unit, and further includes second transporting rollers disposed at a position downstream of the printing unit and configured to rotate in both directions. The second transporting mechanism includes third transporting rollers driven by a second motor and configured to transport the printing medium switched back by the second transporting rollers toward the first transporting rollers. A transporting force of the second transporting rollers is smaller than a transporting force of the third transporting rollers.
    Type: Application
    Filed: March 18, 2011
    Publication date: December 22, 2011
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Kenji SAMOTO, Yuji KOGA
  • Publication number: 20110311291
    Abstract: An image recording apparatus including: a transport passage which has a curved portion; a first transport roller pair which is disposed at the curved portion; a second transport roller pair which is located downstream of the first transport roller pair; and a controller which selectively executes a first recording mode or a second recording mode, wherein: in the first recording mode, the controller stops driving of the first transport roller pair for a predetermined period in an interposed state in which a recording medium is interposed by both of the first and second transport roller pairs, the controller controls a second driving motor intermittently and controls a recording head to discharge ink during a stopping period in which the second transport roller pair is stopped; and in the second recording mode, the controller controls first and second driving motors in synchronization in the interposed state.
    Type: Application
    Filed: March 25, 2011
    Publication date: December 22, 2011
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Kenji SAMOTO, Yuji KOGA
  • Publication number: 20110310145
    Abstract: A multifunction machine includes: a first feeding roller and a second feeding roller; an intermediate roller pair provided to a curved portion of a transport route; a main transporting roller pair; a recording head; a first drive motor and a second drive motor; and a control section. The control section intermittently drives the main transporting roller pair and makes the recording head jet ink during a period of time in which the main transporting roller pair is stopped, and performs pre-paper feeding processing for rotating the first feeding roller a predetermined amount in a paper feeding direction when a rear end of a paper is positioned between a first sensor and the first feeding roller.
    Type: Application
    Filed: March 27, 2011
    Publication date: December 22, 2011
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Kenji SAMOTO, Yuji KOGA, Keisuke WAKAKUSA
  • Publication number: 20110310207
    Abstract: An image recording device comprises a housing, a sheet cassette, a recording unit, and a convey path defining member. The housing has an opening. The sheet cassette is configured to hold therein sheets and configured to be inserted into and removed from the housing through the opening. The recording unit is configured to record an image on a sheet conveyed from the sheet cassette along a convey path. The convey path defining member is configured to pivot, about a pivot shaft supported by the housing, between a guiding position for forming a guide surface that defines a part of the convey path, and an exposing position for exposing the part of the convey path to the opening. The convey path defining member is configured to pivot in response to insertion and removal of the sheet cassette.
    Type: Application
    Filed: March 27, 2011
    Publication date: December 22, 2011
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Tsuyoshi ITO, Kensuke HIRATE, Yuji KOGA
  • Publication number: 20110310174
    Abstract: There is provided an image recording apparatus including: a first and a second feeding roller; a recording head; a carriage; a first and a second drive motor; and a drive transmission switching mechanism transmitting a driving force of the second drive motor to the first and the second feeding roller. The drive transmission switching mechanism includes: a first to a fourth gear; a supporting shaft; a first transmitting section transmitting a rotation of the third gear to the first feeding roller and preventing transmission of rotation of the third gear to the first feeding roller, when the second gear is in a first posture; and a second transmitting section transmitting a rotation of the fourth gear to the second feeding roller and preventing transmission of rotation of the fourth gear to the second feeding roller, when the second gear is in the first posture.
    Type: Application
    Filed: March 28, 2011
    Publication date: December 22, 2011
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Kenji SAMOTO, Yuji KOGA
  • Publication number: 20110310206
    Abstract: An image recording apparatus including: a first conveying path for guiding a recording medium in a conveying direction; a recording portion configured to record an image on the recording medium guided by the first conveying path; a tray provided below the recording portion so as to accommodate the recording medium; a supplying roller configured to supply the recording medium accommodated by the tray to the first conveying path; a first arm provided above the tray, wherein the supplying roller is provided on a distal end of the first arm; a first frame configured to support the recording portion; and a second frame provided separately from the first frame and configured to support the first arm.
    Type: Application
    Filed: March 25, 2011
    Publication date: December 22, 2011
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Kenji SAMOTO, Yuji KOGA
  • Publication number: 20110285074
    Abstract: An image recording apparatus including a first tray having a first holding portion for holding sheets, a second tray disposed above the first tray and including a second holding portion for holding sheets, a sheet feeder that selectively feeds a sheet from one of the first tray and the second tray in a sheet feed direction, a recording unit that records an image on the sheet fed by the sheet feeder, and a discharge roller that discharges the sheet on which the image is recorded by the recording unit. The second holding portion of the second tray moves above the first holding portion of the first tray. The second tray further includes a discharged sheet receiving portion for receiving the sheet discharged by the discharge roller. The second tray including the discharged sheet receiving portion pivots relative to the first tray.
    Type: Application
    Filed: May 19, 2011
    Publication date: November 24, 2011
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Yukio SHIOHARA, Tetsuo ASADA, Yuji KOGA
  • Patent number: 8056998
    Abstract: An image-forming apparatus is capable of performing a non-margin recording operation without a margin on a recording medium and providing a waiting time between a moment of termination of a movement of a carriage in one of opposite directions and a moment of initiation of a subsequent movement of the carriage in the other direction, if the non-margin recording operation is performed during the movement of the carriage in the above-indicated one direction. The carriage is moved in the other direction (returned) at a speed lower than that of the movement in the above-indicated one direction, so that the back surface of an edge portion (e.g., leading end portion) of the recording medium is protected from contamination with an ink mist produced from the ink droplets.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: November 15, 2011
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yuji Koga, Shohei Koide, Tetsuya Ouchi
  • Patent number: 8028986
    Abstract: A printer having a switch gear, first driven gear and second driven gear. The switch gear has a spur gear and is slidable along a direction that is parallel to a rotation axis of the spur gear. The first driven gear has a first spur gear and a cylinder fixed to the first spur gear. The cylinder is concentric with respect to the first spur gear and extends along the above direction. A hole is formed on the second driven gear. The hole is concentric with respect to a second spur gear and extends along the above direction. The second driven gear is rotatably mounted on the first driven gear by inserting the cylinder of the first driven gear into the hole of the second driven gear. The switch gear slides between a first position for engagement with the first driven gear and a second position for engagement with the second driven gear along the above direction.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: October 4, 2011
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yuji Koga, Daisuke Kozaki
  • Patent number: 8020849
    Abstract: An image recording apparatus according to one aspect comprises: a first tray disposed within an opening of a main body to allow a recording medium to be placed thereon; a second tray disposed above the first tray, the second tray having a second end portion located on a side of the opening; a conveying unit; and a recording unit. The second tray is movable between a first posture and a second posture. When the second tray is in the first posture, a top surface of the second tray in the vicinity of the second end portion is positioned at a predetermined height relative to the first tray. When the second tray moves from the first posture to the second posture, the top surface in the vicinity of the second end portion is moved toward the first tray.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: September 20, 2011
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Masatoshi Izuchi, Yuji Koga, Keisuke Wakakusa, Kenji Samoto
  • Publication number: 20110211032
    Abstract: A printer has a carriage being movable between a first end and a second end of a reciprocating path; and a driving force transmitting path selecting mechanism provided at the second end of the reciprocating path. The selecting mechanism has: a common driving force outputting member; a plurality of force receiving members; a selecting member; and a position retainer for keeping the position of the selecting member. The selecting member connects the force outputting member to one of the plurality of force receiving members, and moves in association with the carriage when the carriage moves in a vicinity of the second end in a first direction extending from the first end to the second end. The position retainer keeps the position of the selecting member when the carriage moves in a second direction extending from the second end to the first end.
    Type: Application
    Filed: May 4, 2011
    Publication date: September 1, 2011
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Yuji KOGA, Masatoshi IZUCHI
  • Patent number: 7984958
    Abstract: In an image-recording device, a feeding roller feeds recording media one at a time from a media-accommodating unit along a conveying path. A pair of registration rollers is disposed on the conveying path and conveys the recording medium fed by the feeding roller to an image-recording region. The registration rollers include a drive roller. A carriage reciprocates in the image-recoding region in a direction intersecting a conveying direction in which the recording medium is conveyed. A recording head is mounted on the carriage. A drive transmission switching unit is disposed outside the image-recording region on one end with respect to the reciprocating direction of the carriage and switches a combination of rotating and halted states of the drive roller in the registration rollers and the feeding roller between a continuous feeding mode and an intermittent feeding mode.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: July 26, 2011
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yuji Koga, Masatoshi Izuchi, Tetsuo Asada
  • Publication number: 20110157664
    Abstract: An image recording device having a recording unit to record an image on a sheet is provided. The image recording unit includes a feed guide defining a first conveying path; an arm disposed between the recording unit and the tray, the arm having a feed roller rotatably disposed at a free end and configured to feed the sheet in the tray to the first conveying path. The arm pivots between a first arm position, and a second arm position. The return guide pivots between a first return guide position, and a second return guide position. A space occupied by the return guide in the first return guide position overlaps a space occupied by the arm in the second arm position. The return guide is in the second return guide position when the arm is in the second arm position which is retracted from an insertion space occupied by the tray.
    Type: Application
    Filed: September 28, 2010
    Publication date: June 30, 2011
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Kenji SAMOTO, Yuji KOGA
  • Publication number: 20110158725
    Abstract: An image recording device is provided, having a recording unit configured to record an image on a sheet, and a tray disposed below the recording unit. The tray includes a sheet holding surface configured to hold the sheet. Additionally, the image recording device includes a sheet feeder disposed between the recording unit and the tray. The sheet feeder includes a roller for feeding the sheet from the tray. The roller is configured to move between a first roller position in which the roller contacts the sheet holding surface of the tray and a second roller position in which the roller is separated from the sheet holding surface. A return guide, disposed between the recording unit and the sheet feeder, defines a second conveying path to guide the sheet having an image recorded on one side thereof back to the feed guide. The return guide has a first opening configured to accommodate the roller of the sheet feeder when the roller is in the second roller position.
    Type: Application
    Filed: September 28, 2010
    Publication date: June 30, 2011
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Tetsuo ASADA, Hirotaka AOKI, Satoru NAKAKITA, Shota IIJIMA, Kenji SAMOTO, Yuji KOGA