Patents by Inventor Yasuhiko Yoshihisa

Yasuhiko Yoshihisa 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: 8727334
    Abstract: A recording device includes a judgment unit and a control unit. The judgment unit judges whether or not a designated standby time has elapsed still without a next recording job after the current recording job performed by the recording unit has ended in a state with the first media housing unit arranged in the feed position. The control unit controls the drive unit to hold the first media housing unit in the feed position when the judgment unit judges that it is before the standby time has elapsed, and on the other hand, to move the first media housing unit from the feed position to the removal position when the judgment unit judges that it is after the standby time has elapsed.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: May 20, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Yohei Nunokawa, Yasuhiko Yoshihisa
  • Publication number: 20140043383
    Abstract: To reduce noise during paper conveyance while ensuring printing efficiency of an inkjet printer, a printing device is equipped with a control unit for moving a recording head back and forth in the scan direction according to the rotation of a carriage motor, a conveyance unit for extracting and feeding paper, conveying the paper in the sub scan direction to match the movement of the recording head to print the fed paper, and ejecting the printed paper according to the rotation of a conveyance motor, a paper reversal unit for coordinating with the rotation of the rotation means of the conveyance motor to reverse the front and back of the paper, and a printing control unit for controlling spraying of the ink from the recording head, as well as controlling the carriage motor and the conveyance motor.
    Type: Application
    Filed: August 6, 2013
    Publication date: February 13, 2014
    Applicant: Seiko Epson Corporation
    Inventors: Yohei NUNOKAWA, Yasuhiko YOSHIHISA, Hitoshi IGARASHI
  • Publication number: 20140035218
    Abstract: To provide a recording device enabling unencumbered movement of a stacker to a target position at which an amount of extension that corresponds to the length of a medium is reached, a printer is provided with a conveyance unit for conveying paper, a paper length determination unit for determining the length of the paper in the direction of conveyance of the paper, a recording unit for recording onto the paper being conveyed, one stacker for receiving the already-recorded paper, an electric motor for driving the stacker, and a controller for controlling the electric motor. The controller (in particular, a stacker control unit) controls the electric motor and controls the stacker to a position at which the amount of extension that corresponds to the length of the paper is reached.
    Type: Application
    Filed: August 2, 2013
    Publication date: February 6, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Kaoru KOYAMA, Yasuhiko YOSHIHISA
  • Publication number: 20140027969
    Abstract: To provide a recording device that can inhibit the occurrence of a recording media jam state in a shared passage part that is shared as a recording media shared path with a plurality of media supply paths, this is equipped with a plurality of conveyance paths for supplying paper, a shared passage part, a moving unit that moves the paper, a printing unit that performs printing on the paper, an insertion port that is able to insert paper in the conveyance path by paper being inserted, an opening and closing lid provided so that the insertion port can be opened and closed, a detection sensor for detecting an open lid state when the opening and closing lid opens the insertion port, and a movement control unit that, when the detection sensor detects the open lid state.
    Type: Application
    Filed: July 25, 2013
    Publication date: January 30, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Manabu KONDO, Yohei NUNOKAWA, Yasuhiko YOSHIHISA
  • Publication number: 20140021677
    Abstract: To provide a recording device that can reduce the frequency of delays in the start of the next recording job for which the feed source is the same first media housing unit, due to the operation of moving the first media housing unit from the feed position toward the removal position after a recording job ends, a computer inside a printer is equipped with a cassette control unit.
    Type: Application
    Filed: July 23, 2013
    Publication date: January 23, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yohei NUNOKAWA, Yasuhiko YOSHIHISA
  • Patent number: 8014046
    Abstract: Disclosed herein is a scanner device which scans a predetermined scan object and generates image data, the scanner device including: an image sensor which converts an optical image of the scan object into corresponding image data; a movement unit which moves a carriage having the image sensor in a sub-scan direction; a first control unit which controls the movement unit by a first control process; a second control unit which controls the movement unit by a second control process different from the first control process; and a selection unit which selects the first or the second control unit according to setting contents relating to a scan.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: September 6, 2011
    Assignee: Seiko Epson Corporation
    Inventor: Yasuhiko Yoshihisa
  • Patent number: 7982424
    Abstract: The invention provides, as an aspect thereof, an document reading apparatus that includes: a speed calculating unit that calculates a speed related to the rotation of a motor on the basis of a signal that is outputted from an encoder; and a controlling unit that calculates control amount on the basis of the speed calculated by the speed calculating unit so as to control the rotation of the motor in accordance with the calculated control amount. In the configuration of an document reading apparatus according to this aspect of the invention, the above-mentioned controlling unit controls the motor with an increase in the control amount in a case where there occurs no change in the signal that is outputted from the encoder for a certain period of time. The increase in the control amount is based on the length of time that has elapsed since the last change in the signal.
    Type: Grant
    Filed: August 11, 2008
    Date of Patent: July 19, 2011
    Assignee: Seiko Epson Corporation
    Inventor: Yasuhiko Yoshihisa
  • Patent number: 7918526
    Abstract: A printer is provided with: a detector, operable to output an output signal in accordance with a state of a printing medium transported within the printer; and a control signal generator, operable to generate a control signal in accordance with a level of the output signal relative to a threshold. In order to control the printer, the output signal is detected. A timing signal indicative of a timing to judge the state of the printing medium is detected.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: April 5, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Kosaku Nobuta, Yasuhiko Yoshihisa
  • Patent number: 7821685
    Abstract: An image reading method according to the present invention involves causing an image sensor for reading an image of a document to move from a side at which the document is placed toward a home position of the image sensor, causing to reverse a movement direction at a turn-back position after the image sensor has passed the home position, and causing the image sensor to move to the home position again.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: October 26, 2010
    Assignee: Seiko Epson Corporation
    Inventor: Yasuhiko Yoshihisa
  • Patent number: 7777441
    Abstract: A motor controlling method according to the present invention involves causing rotation of a motor to commence by applying an initial power that can cause movement of an object to be transported to commence, to the motor; obtaining a position of the object to be transported after the motor has been controlled so as to cause the object to be transported to move to a target position based on a signal outputted in response to the rotation of the motor; and correcting an initial power to be used when movement of the object to be transported is caused to commence a next time in response to a difference between the target position and the obtained position of the object to be transported.
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: August 17, 2010
    Assignee: Seiko Epson Corporation
    Inventor: Yasuhiko Yoshihisa
  • Patent number: 7677554
    Abstract: A recording medium transfer apparatus includes a motor control unit for controlling the motor to rotate at higher speed when the recording medium is fed to the liquid ejection area than that when the recording medium is discharged out of the liquid ejection area, and a feed control unit for controlling a next recording medium to be fed simultaneously with discharge of the recording medium, if a position of a rear end of the recording medium when recording or printing has been finished is situated upstream of a predetermined position, which is upstream of the discharge roller as much as a distance between a feed start position of the recording medium and the liquid ejection area, whereas controlling the next recording medium to start to be fed after discharge of the recording medium has been finished, if the position of the rear end of the recording medium when recording or printing has been finished is situated downstream of the predetermined position.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: March 16, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Yasuhiko Yoshihisa, Kosaku Nobuta
  • Publication number: 20100053678
    Abstract: A printing apparatus includes: a reading section which performs scanning in a readable range; a flexible flat cable (FFC) which is connected to the reading section; a printing section which performs printing on the basis of readout data acquired through the flexible flat cable; and a positioning section which positions the reading section at a predetermined position other than the readable range.
    Type: Application
    Filed: August 27, 2009
    Publication date: March 4, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yasuhiko Yoshihisa, Takao Oizumi
  • Publication number: 20090315503
    Abstract: A method of reading an image by an image sensor comprising: a) reciprocating a carriage from a predetermined position in a predetermined direction by rotating a stepping motor to which a second current value smaller than a first current value is supplied; and b) detecting whether or not the carriage after reciprocating is disposed at the predetermined position, by the sensor, wherein, in the case where the sensor detects that the carriage after reciprocating is disposed at the predetermined position, when the image sensor reads an image, the first current value is supplied to the stepping motor, and in the case where the sensor detects that the carriage after reciprocating is not disposed at the predetermined position, when the image sensor reads an image, a current value obtained by adding a third current value to the first current value is supplied to the stepping motor.
    Type: Application
    Filed: May 13, 2009
    Publication date: December 24, 2009
    Applicant: Seiko Epson Corporation
    Inventors: Yasuhiko Yoshihisa, Hitoshi Igarashi
  • Patent number: 7583045
    Abstract: There are included a control circuit to control sequence of excitation of a stepping motor, a switching circuit to switch electric power to be supplied to the stepping motor based on an instruction from the control circuit, and a stop circuit to stop an operation of the switching circuit in a case where temperature of the switching circuit becomes a specified temperature or higher, and the control circuit controls the switching circuit in a mode where the stop circuit operates before the stepping motor is damaged by heat.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: September 1, 2009
    Assignee: Seiko Epson Corporation
    Inventor: Yasuhiko Yoshihisa
  • Publication number: 20090079124
    Abstract: A recording medium transfer apparatus includes a motor control unit for controlling the motor to rotate at higher speed when the recording medium is fed to the liquid ejection area than that when the recording medium is discharged out of the liquid ejection area, and a feed control unit for controlling a next recording medium to be fed simultaneously with discharge of the recording medium, if a position of a rear end of the recording medium when recording or printing has been finished is situated upstream of a predetermined position, which is upstream of the discharge roller as much as a distance between a feed start position of the recording medium and the liquid ejection area, whereas controlling the next recording medium to start to be fed after discharge of the recording medium has been finished, if the position of the rear end of the recording medium when recording or printing has been finished is situated downstream of the predetermined position.
    Type: Application
    Filed: March 18, 2008
    Publication date: March 26, 2009
    Applicant: Seiko Epson Corporation
    Inventors: Yasuhiko Yoshihisa, Kosaku Nobuta
  • Publication number: 20090041440
    Abstract: The invention provides, as an aspect thereof, an document reading apparatus that includes: a speed calculating unit that calculates a speed related to the rotation of a motor on the basis of a signal that is outputted from an encoder; and a controlling unit that calculates control amount on the basis of the speed calculated by the speed calculating unit so as to control the rotation of the motor in accordance with the calculated control amount. In the configuration of an document reading apparatus according to this aspect of the invention, the above-mentioned controlling unit controls the motor with an increase in the control amount in a case where there occurs no change in the signal that is outputted from the encoder for a certain period of time. The increase in the control amount is based on the length of time that has elapsed since the last change in the signal.
    Type: Application
    Filed: August 11, 2008
    Publication date: February 12, 2009
    Applicant: Seiko Epson Corporation
    Inventor: Yasuhiko Yoshihisa
  • Patent number: 7443132
    Abstract: A motor control device for controlling rotation of a motor by controlling a driving voltage applied to the motor is provided. The device includes a driving voltage control unit configured to control the driving voltage, and a detecting unit configured to detect rotation of the motor. The motor has operating characteristics indicative of relationship between the driving voltage and a rotation speed of the motor, where the operating characteristics have a specific dead-band range of driving voltages wherein the rotation speed of the motor is zero regardless of changes in the driving voltage. The driving voltage control unit performs a low rotation control operation including at least one alternating repetition of a first control operation and a second control operation.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: October 28, 2008
    Assignee: Seiko Epson Corporation
    Inventors: Yasuhiko Yoshihisa, Hitoshi Igarashi
  • Patent number: 7427847
    Abstract: A stepping motor control method including: supplying hold current for holding a rotor of a stepping motor at a prescribed angle to the stepping motor as required while the stepping motor stops; performing a phase change at a frequency lower than a maximum self-start frequency when the stepping motor is rotated, under a state that the hold current is not supplied to the stepping motor, from a stopping state; and then, performing an accelerating process.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: September 23, 2008
    Assignee: Seiko Epson Corporation
    Inventor: Yasuhiko Yoshihisa
  • Publication number: 20080174836
    Abstract: Disclosed herein is a scanner device which scans a predetermined scan object and generates image data, the scanner device including: an image sensor which converts an optical image of the scan object into corresponding image data; a movement unit which moves a carriage having the image sensor in a sub-scan direction; a first control unit which controls the movement unit by a first control process; a second control unit which controls the movement unit by a second control process different from the first control process; and a selection unit which selects the first or the second control unit according to setting contents relating to a scan.
    Type: Application
    Filed: September 11, 2007
    Publication date: July 24, 2008
    Applicant: Seiko Epson Corporation
    Inventor: Yasuhiko Yoshihisa
  • Patent number: 7367555
    Abstract: A recording medium transfer apparatus includes a motor control unit for controlling the motor to rotate at higher speed when the recording medium is fed to the liquid ejection area than that when the recording medium is discharged out of the liquid ejection area, and a feed control unit for controlling a next recording medium to be fed simultaneously with discharge of the recording medium, if a position of a rear end of the recording medium when recording or printing has been finished is situated upstream of a predetermined position, which is upstream of the discharge roller as much as a distance between a feed start position of the recording medium and the liquid ejection area, whereas controlling the next recording medium to start to be fed after discharge of the recording medium has been finished, if the position of the rear end of the recording medium when recording or printing has been finished is situated downstream of the predetermined position.
    Type: Grant
    Filed: April 26, 2004
    Date of Patent: May 6, 2008
    Assignee: Seiko Epson Corporation
    Inventors: Yasuhiko Yoshihisa, Kosaku Nobuta