Patents by Inventor Ryusuke NAKATA

Ryusuke NAKATA 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: 10022902
    Abstract: A control device of an injection apparatus outputs a control command to a hydraulic pressure device to perform injection by supplying hydraulic fluid to the back of an injection piston 15 from an accumulator 25 and, at this time, to execute speed control for controlling the speed of the plunger by an opening degree of an injection control valve. Further, the control device outputs a control command to the hydraulic pressure device to perform boosting by opening a booster valve to supply hydraulic fluid to the back of the booster piston and pressurizing the hydraulic fluid behind the injection piston by the booster piston and, at this time, to execute pressure control for controlling the pressure of the molding material by an opening degree of the injection control valve. Further, the control device can start outputting a control command for pressure control after start of outputting a control command for opening the booster valve in transition from injection to boosting.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: July 17, 2018
    Assignee: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Kazuyasu Takei, Ryusuke Nakata, Hiroshi Yokoyama
  • Patent number: 9968998
    Abstract: An injection device has an injection cylinder for driving a plunger, a gas pressure type accumulator which supplies hydraulic fluid to the injection cylinder, a hydraulic fluid supply device which supplies the hydraulic fluid to the accumulator, a pressure sensor for detecting the gas pressure of the accumulator, and a control device which controls the hydraulic fluid supply device so as to suspend the supply of the hydraulic fluid when detection value of the pressure sensor reaches a predetermined target gas pressure before injection in the state where the hydraulic fluid is supplied from the hydraulic fluid supply device to the accumulator in a molding cycle.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: May 15, 2018
    Assignee: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Satoshi Tomioka, Ryusuke Nakata
  • Patent number: 9471024
    Abstract: An image reading device includes a document container; a document transport path; a reading member that reads an image of a document passing a predetermined read position; a skew correcting member that corrects a skew of the document; a first detecting member that detects the document; a second detecting member that detects the document; a correction switcher that performs switching in accordance with whether or not skew correction is to be executed at the skew correcting member; a skew-amount measurer that measures a skew amount of the document based on a first time period if the skew of the document is to be corrected, and that measures the skew amount based on a second time period if the skew of the document is not to be corrected; and a transport stopping unit that stops transporting of the document if the skew amount exceeds a predetermined skew amount.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: October 18, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Ryusuke Nakata
  • Publication number: 20160282792
    Abstract: An image reading device includes a document container; a document transport path; a reading member that reads an image of a document passing a predetermined read position; a skew correcting member that corrects a skew of the document; a first detecting member that detects the document; a second detecting member that detects the document; a correction switcher that performs switching in accordance with whether or not skew correction is to be executed at the skew correcting member; a skew-amount measurer that measures a skew amount of the document based on a first time period if the skew of the document is to be corrected, and that measures the skew amount based on a second time period if the skew of the document is not to be corrected; and a transport stopping unit that stops transporting of the document if the skew amount exceeds a predetermined skew amount.
    Type: Application
    Filed: August 20, 2015
    Publication date: September 29, 2016
    Inventor: Ryusuke NAKATA
  • Publication number: 20160279701
    Abstract: An injection device has an injection cylinder for driving a plunger, a gas pressure type accumulator which supplies hydraulic fluid to the injection cylinder, a hydraulic fluid supply device which supplies the hydraulic fluid to the accumulator, a pressure sensor for detecting the gas pressure of the accumulator, and a control device which controls the hydraulic fluid supply device so as to suspend the supply of the hydraulic fluid when detection value of the pressure sensor reaches a predetermined target gas pressure before injection in the state where the hydraulic fluid is supplied from the hydraulic fluid supply device to the accumulator in a molding cycle.
    Type: Application
    Filed: March 24, 2016
    Publication date: September 29, 2016
    Inventors: Satoshi TOMIOKA, Ryusuke NAKATA
  • Publication number: 20160200022
    Abstract: A control device of an injection apparatus outputs a control command to a hydraulic pressure device to perform injection by supplying hydraulic fluid to the back of an injection piston 15 from an accumulator 25 and, at this time, to execute speed control for controlling the speed of the plunger by an opening degree of an injection control valve. Further, the control device outputs a control command to the hydraulic pressure device to perform boosting by opening a booster valve to supply hydraulic fluid to the back of the booster piston and pressurizing the hydraulic fluid behind the injection piston by the booster piston and, at this time, to execute pressure control for controlling the pressure of the molding material by an opening degree of the injection control valve. Further, the control device can start outputting a control command for pressure control after start of outputting a control command for opening the booster valve in transition from injection to boosting.
    Type: Application
    Filed: January 8, 2016
    Publication date: July 14, 2016
    Inventors: Kazuyasu TAKEI, Ryusuke NAKATA, Hiroshi YOKOYAMA
  • Publication number: 20160023857
    Abstract: A recording sheet transport device having a transport path having a curvature includes a multifeed detector and an orientation stabilizing device. The multifeed detector detects a multifeed state in which two or more recording sheets are superposed on one another while the two or more recording sheets are being transported. The orientation stabilizing device stabilizes an orientation of parts of the two or more recording sheets, at which the multifeed state is detected by the multifeed detector, relative to the multifeed detector.
    Type: Application
    Filed: February 4, 2015
    Publication date: January 28, 2016
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Ryusuke NAKATA
  • Patent number: 8773732
    Abstract: An image reading apparatus comprises a reading unit including a document table, a cover portion covering the document table, an opening and closing mechanism having a first and second mounting portions and opening and closing the cover portion to an opened and a closed state, a covering member rotating about a rotating shaft of a member side and covering at least a portion of an exposed portion, and a rotating regulating unit regulating rotation of the covering member due to the weight of the covering member in a state where the center of gravity of the covering member is separated further from the cover portion than the rotating shaft of the member side, and where the covering member covers at least a portion of the exposed portion within a movement range of the opening and the closing of the cover portion.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: July 8, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Akira Yamazaki, Ryusuke Nakata, Senggyu Cho, Munseok Yang
  • Publication number: 20130083368
    Abstract: An image reading apparatus comprises a reading unit including a document table, a cover portion covering the document table, an opening and closing mechanism having a first and second mounting portions and opening and closing the cover portion to an opened and a closed state, a covering member rotating about a rotating shaft of a member side and covering at least a portion of an exposed portion, and a rotating regulating unit regulating rotation of the covering member due to the weight of the covering member in a state where the center of gravity of the covering member is separated further from the cover portion than the rotating shaft of the member side, and where the covering member covers at least a portion of the exposed portion within a movement range of the opening and the closing of the cover portion.
    Type: Application
    Filed: April 20, 2012
    Publication date: April 4, 2013
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Akira YAMAZAKI, Ryusuke NAKATA, Senggyu CHO, Munseok YANG