Patents by Inventor Haruyuki Yanagi

Haruyuki Yanagi 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: 8767267
    Abstract: According to the present invention, to perform double-sided printing or marginless printing, overall image data consonant with an area that includes an area on a print medium and an overrun area are generated based on information concerning the size of the print medium and information concerning the overrun distances. To generate image data, the image data are prepared for both one side of the print medium and the other side of the print medium, so that, relative to the print medium, the position of the image data corresponding to one side matches the position, relative to the print medium, of the image data corresponding to the other side.
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: July 1, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Haruyuki Yanagi
  • Patent number: 8523305
    Abstract: An apparatus includes a printing unit which is disposed in a housing and configured to form an image on a sheet, an lid attached to the housing by a hinge mechanism, and a camera which is attached to the lid and configured to read an image on a document while the lid is open, wherein the sheet having the image formed by the printing unit is discharged on the lid, and when the lid is opened, the camera can read the document which is placed at a reading position below the camera.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: September 3, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Saito, Masaaki Ishibashi, Daijirou Nagasaki, Tetsuhiro Nitta, Hiroshi Ogushi, Yasuhiko Ikeda, Shigeyuki Sugiyama, Haruyuki Yanagi, Takeji Niikura
  • Patent number: 8456714
    Abstract: An image forming apparatus includes a printing section, a flatbed scanner section configured to read an original on a reading surface, and a moving mechanism configured to change the angle of the reading surface relative to an installation plane on which the apparatus is installed. The scanner section is capable of performing reading in each of a first mode where the angle of the reading surface is a first angle (vertical) and a second mode where the angle of the reading surface is a second angle (horizontal) different from the first angle.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: June 4, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuhiko Ikeda, Haruyuki Yanagi, Masaaki Ishibashi, Kenichi Nishimura, Sakiko Takizawa, Naofumi Sekine, Hiroshi Ogushi, Takeji Niikura, Tetsuya Saito, Tetsuhiro Nitta, Shigeyuki Sugiyama
  • Patent number: 8282206
    Abstract: A display unit includes a slide mechanism slidable in a lateral or vertical direction to a housing. A maintenance opening formed in the housing can be covered and uncovered. When the opening is uncovered, a user can access at least apart of a print section in the housing from the opening and perform maintenance.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: October 9, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Haruyuki Yanagi, Yasuhiko Ikeda, Hiroshi Ogushi, Tetsuya Saito, Takeji Niikura, Masaaki Ishibashi, Kenichi Nishimura, Tetsuhiro Nitta, Shigeyuki Sugiyama
  • Patent number: 8235610
    Abstract: This invention relates to a printing apparatus and a conveyance control method capable of allowing even an arrangement having a plurality of conveyance rollers in a printing medium conveyance path to accurately control conveyance of a printing medium. According to this invention, a first encoder detects a conveyance amount by a first conveyance roller, provided in a conveyance path, for conveying a printing medium. A second encoder detects a conveyance amount by a second conveyance roller provided in the conveyance path in the conveyance direction of the printing medium at the downstream side of the first conveyance roller for conveying the printing medium. On the other hand, a signal output from the first or second encoder is selected on the basis of the position of the printing medium on the conveyance path. Conveyance of the printing medium is controlled on the basis of the selected output signal.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: August 7, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Saito, Haruyuki Yanagi, Kentaro Onuma, Tetsuya Ishikawa, Yuichiro Suzuki, Hiroyuki Kakishima, Michiharu Shoji
  • Publication number: 20110090271
    Abstract: In order to stabilize a performance of a pump employed for processing in an inkjet printing apparatus such as sucking ink from a printing head with a low cost configuration and without the need of using any specific detecting unit, the following configuration is employed. Namely, a tube pump having a member with a curved surface aligned with a flexible tube for supporting the tube and a roller which moves while pressing (squeezing) the flexible tube is driven with a DC motor. To keep revolutions always constant, a current PWM control is employed for changing a power applied to the motor according to load fluctuations, and a phase of the roller is determined based on the current PWM value to manage a pressure generated by the pump and a discharge rate.
    Type: Application
    Filed: December 29, 2010
    Publication date: April 21, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kenji Shigeno, Tetsuya Ishikawa, Haruyuki Yanagi, Kentaro Onuma
  • Patent number: 7926895
    Abstract: This invention relates to a printing apparatus and a conveyance control method capable of allowing even an arrangement having a plurality of conveyance rollers in a printing medium conveyance path to accurately control conveyance of a printing medium. A pattern having a predetermined uniform density is printed on a printing medium a plurality of number of times by using a printhead while conveying the printing medium and changing the conveyance amount by a small amount. A conveyance correction amount obtained on the basis of the conveyance amount upon printing a pattern selected from a plurality of printed pattern is stored in a storage medium. Conveyance of the printing medium is controlled while correcting the conveyance amount of the printing medium by the conveyance means on the basis of the conveyance correction amount stored in the storage means.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: April 19, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Ishikawa, Haruyuki Yanagi, Kentaro Onuma, Hiroyuki Saito, Hideo Sugimura, Masakazu Tsukuda
  • Patent number: 7896566
    Abstract: A printing apparatus and method are capable of printing an image in a rear end area of a print medium. A sheet is transported by a transport roller and pinch rollers situated upstream of a print head with respect to the transport direction, and by a discharge roller and spurs situated downstream of the print head. After the sheet has left the transport roller and the pinch rollers, it is transported by the discharge roller and spurs. The sheet is printed with a test pattern for detecting a difference between a transport amount appearing before the sheet leaves the transport roller and pinch rollers and a transport amount appearing when the sheet leaves them. Based on a correction value set according to a printed result of the test pattern, the transport amount used when the sheet leaves the transport roller and pinch rollers is corrected.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: March 1, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Haruyuki Yanagi
  • Patent number: 7866789
    Abstract: In order to stabilize a performance of a pump employed for processing in an inkjet printing apparatus such as sucking ink from a printing head with a low cost configuration and without the need of using any specific detecting unit, the following configuration is employed. Namely, a tube pump having a member with a curved surface aligned with a flexible tube for supporting the tube and a roller which moves while pressing (squeezing) the flexible tube is driven with a DC motor. To keep revolutions always constant, a current PWM control is employed for changing a power applied to the motor according to load fluctuations, and a phase of the roller is determined based on the current PWM value to manage a pressure generated by the pump and a discharge rate.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: January 11, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Shigeno, Tetsuya Ishikawa, Haruyuki Yanagi, Kentaro Onuma
  • Patent number: 7811015
    Abstract: This invention relates to a printing apparatus and a conveyance control method capable of simultaneously operating plural encoder sensors and executing more accurate printing medium conveyance control. A first encoder sensor provided adjacent to a first conveyance roller detects the conveyance amount of a printing medium by the first conveyance roller provided in the conveyance path of the printing medium. A second encoder sensor provided adjacent to a second conveyance roller detects the conveyance amount of the printing medium by the second conveyance roller provided in the conveyance path of the printing medium at the downstream side from the first conveyance roller in the conveyance direction of the printing medium. For example, conveyance of the printing medium is controlled on the basis of the output signals from the first and second encoder sensors when a tail end of the printing medium is located adjacent to the first conveyance roller.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: October 12, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Haruyuki Yanagi, Kentaro Onuma, Tetsuya Ishikawa
  • Patent number: 7764389
    Abstract: A recording apparatus for forming images using a recording head includes a feeding roller, a conveying roller, a conveyance control unit, and a recording control unit. The conveyance control unit performs a conveying operation a number of times after the trailing end of a sheet reaches a predetermined position defined between the feeding roller and the conveying roller such that the trailing end of the sheet is disposed in a predetermined range upstream of the conveying roller in a sheet conveying direction after the conveying operations. At least one of the conveying operations performed a number of times is performed based on a distance from the position of the trailing end of the sheet to the position of the conveying roller.
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: July 27, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kentaro Onuma, Haruyuki Yanagi, Tetsuya Ishikawa, Minoru Teshigawara
  • Publication number: 20100097667
    Abstract: An image forming apparatus includes a printing section, a flatbed scanner section configured to read an original on a reading surface, and a moving mechanism configured to change the angle of the reading surface relative to an installation plane on which the apparatus is installed. The scanner section is capable of performing reading in each of a first mode where the angle of the reading surface is a first angle (vertical) and a second mode where the angle of the reading surface is a second angle (horizontal) different from the first angle.
    Type: Application
    Filed: October 14, 2009
    Publication date: April 22, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yasuhiko Ikeda, Haruyuki Yanagi, Masaaki Ishibashi, Kenichi Nishimura, Sakiko Takizawa, Naofumi Sekine, Hiroshi Ogushi, Takeji Niikura, Tetsuya Saito, Tetsuhiro Nitta, Shigeyuki Sugiyama
  • Publication number: 20100066796
    Abstract: A display unit includes a slide mechanism slidable in a lateral or vertical direction to a housing. A maintenance opening formed in the housing can be covered and uncovered. When the opening is uncovered, a user can access at least apart of a print section in the housing from the opening and perform maintenance.
    Type: Application
    Filed: September 9, 2009
    Publication date: March 18, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Haruyuki Yanagi, Yasuhiko Ikeda, Hiroshi Ogushi, Tetsuya Saito, Takeji Niikura, Masaaki Ishibashi, Kenichi Nishimura, Tetsuhiro Nitta, Shigeyuki Sugiyama
  • Publication number: 20100060694
    Abstract: An apparatus includes a printing unit which is disposed in a housing and configured to form an image on a sheet, an lid attached to the housing by a hinge mechanism, and a camera which is attached to the lid and configured to read an image on a document while the lid is open, wherein the sheet having the image formed by the printing unit is discharged on the lid, and when the lid is opened, the camera can read the document which is placed at a reading position below the camera.
    Type: Application
    Filed: September 10, 2009
    Publication date: March 11, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tetsuya Saito, Masaaki Ishibashi, Daijirou Nagasaki, Tetsuhiro Nitta, Hiroshi Ogushi, Yasuhiko Ikeda, Shigeyuki Sugiyama, Haruyuki Yanagi, Takeji Niikura
  • Publication number: 20090289974
    Abstract: In order to stabilize a performance of a pump employed for processing in an inkjet printing apparatus such as sucking ink from a printing head with a low cost configuration and without the need of using any specific detecting unit, the following configuration is employed. Namely, a tube pump having a member with a curved surface aligned with a flexible tube for supporting the tube and a roller which moves while pressing (squeezing) the flexible tube is driven with a DC motor. To keep revolutions always constant, a current PWM control is employed for changing a power applied to the motor according to load fluctuations, and a phase of the roller is determined based on the current PWM value to manage a pressure generated by the pump and a discharge rate.
    Type: Application
    Filed: October 25, 2006
    Publication date: November 26, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kenji Shigeno, Tetsuya Ishikawa, Haruyuki Yanagi, Kentaro Onuma
  • Patent number: 7527371
    Abstract: An ink jet printing apparatus that can print high quality images under simple control includes a conveying roller disposed upstream of a printing section to convey a print medium, a pinch roller that rotates in cooperation with the conveying roller and discharging rollers that convey the print medium downstream of the printing section. The pinch roller, before a trailing end of the print medium reaches a nip portion between the conveying roller and the pinch roller, moves from a pressure contact position with respect to the conveying roller. A conveyance amount of the print medium varies between before and after separation of the pinch roller from the conveying roller.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: May 5, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Haruyuki Yanagi, Nozomu Nishiberi, Toshiya Matsumoto, Hiroyuki Saito, Kentaro Onuma
  • Publication number: 20080049272
    Abstract: A recording apparatus for forming images using a recording head includes a feeding roller, a conveying roller, a conveyance control unit, and a recording control unit. The conveyance control unit performs a conveying operation a number of times after the trailing end of a sheet reaches a predetermined position defined between the feeding roller and the conveying roller such that the trailing end of the sheet is disposed in a predetermined range upstream of the conveying roller in a sheet conveying direction after the conveying operations. At least one of the conveying operations performed a number of times is performed based on a distance from the position of the trailing end of the sheet to the position of the conveying roller.
    Type: Application
    Filed: August 10, 2007
    Publication date: February 28, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kentaro Onuma, Haruyuki Yanagi, Tetsuya Ishikawa, Minoru Teshigawara
  • Publication number: 20080049089
    Abstract: This invention relates to a printing apparatus and a conveyance control method capable of allowing even an arrangement having a plurality of conveyance rollers in a printing medium conveyance path to accurately control conveyance of a printing medium. A pattern having a predetermined uniform density is printed on a printing medium a plurality of number of times by using a printhead while conveying the printing medium and changing the conveyance amount by a small amount. A conveyance correction amount obtained on the basis of the conveyance amount upon printing a pattern selected from a plurality of printed pattern is stored in a storage medium. Conveyance of the printing medium is controlled while correcting the conveyance amount of the printing medium by the conveyance means on the basis of the conveyance correction amount stored in the storage means.
    Type: Application
    Filed: August 21, 2007
    Publication date: February 28, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tetsuya Ishikawa, Haruyuki Yanagi, Kentaro Onuma, Hiroyuki Saito, Hideo Sugimura, Masakazu Tsukuda
  • Patent number: RE44938
    Abstract: A recording apparatus for forming images using a recording head includes a feeding roller, a conveying roller, a conveyance control unit, and a recording control unit. The conveyance control unit performs a conveying operation a number of times after the trailing end of a sheet reaches a predetermined position defined between the feeding roller and the conveying roller such that the trailing end of the sheet is disposed in a predetermined range upstream of the conveying roller in a sheet conveying direction after the conveying operations. At least one of the conveying operations performed a number of times is performed based on a distance from the position of the trailing end of the sheet to the position of the conveying roller.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: June 10, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kentaro Onuma, Haruyuki Yanagi, Tetsuya Ishikawa, Minoru Teshigawara
  • Patent number: RE45063
    Abstract: A recording apparatus for forming images using a recording head includes a feeding roller, a conveying roller, a conveyance control unit, and a recording control unit. The conveyance control unit performs a conveying operation a number of times after the trailing end of a sheet reaches a predetermined position defined between the feeding roller and the conveying roller such that the trailing end of the sheet is disposed in a predetermined range upstream of the conveying roller in a sheet conveying direction after the conveying operations. At least one of the conveying operations performed a number of times is performed based on a distance from the position of the trailing end of the sheet to the position of the conveying roller.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: August 5, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kentaro Onuma, Haruyuki Yanagi, Tetsuya Ishikawa, Minoru Teshigawara