Patents by Inventor Toshihiko Numazu

Toshihiko Numazu 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: 9958820
    Abstract: In a front/back reversing unit, a base metal sheet having rollers attached thereon is engaged with a rotation spindle fixed to a fitting such that the base metal sheet is rotatable in a horizontal direction. When an operation of rolling up a print target medium is started and if winding tension with respect to the print target medium to be wrapped around a winding shaft becomes unbalanced, the front/back reversing unit rotates in accordance with the winding tension so as to balance the winding tension. Then, when the winding tension applied to the print target medium becomes balanced, the front/back reversing unit is returned to its original position by an elastic member, and the roller of the front/back reversing unit and the winding shaft become substantially parallel to each other.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: May 1, 2018
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Toshihiko Numazu, Yasuhiro Tsuyuki
  • Patent number: 9846402
    Abstract: A static charge eliminator includes an abutment member which abuts on a print target medium so as to eliminate static charge on a lower flow side than a position where the print target medium separates from and comes in contact with a predetermined roller on a conveyance path of the print target medium, and a supporting member which supports the abutment member such that the abutment member rotates around a rotation axis of the roller, in which the supporting member rotates while following a change in a pressing force from the print target medium via the abutment member which occurs when a winding angle using the position where the print target medium separates from and comes in contact with the roller as a reference point is changed in accordance with a winding amount of the print target medium.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: December 19, 2017
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Toshihiko Numazu, Yasuhiro Tsuyuki
  • Patent number: 9823612
    Abstract: A printing device includes a first ejector that ejects a recording medium to an exterior, a second ejector that enhances a rigidity of the recording medium more than by the first ejector, and ejects the recording medium to the exterior, and an ejector selector that selects either the first ejector or the second ejector.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: November 21, 2017
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Toshihiko Numazu, Toshio Nagasaka, Toshiaki Yajima
  • Publication number: 20170090358
    Abstract: A static charge eliminator includes an abutment member which abuts on a print target medium so as to eliminate static charge on a lower flow side than a position where the print target medium separates from and comes in contact with a predetermined roller on a conveyance path of the print target medium, and a supporting member which supports the abutment member such that the abutment member rotates around a rotation axis of the roller, in which the supporting member rotates while following a change in a pressing force from the print target medium via the abutment member which occurs when a winding angle using the position where the print target medium separates from and comes in contact with the roller as a reference point is changed in accordance with a winding amount of the print target medium.
    Type: Application
    Filed: July 29, 2016
    Publication date: March 30, 2017
    Inventors: Toshihiko Numazu, Yasuhiro Tsuyuki
  • Patent number: 9423755
    Abstract: A printing apparatus prints an image on a recording medium unwound by an unwinder. The recording medium is wound around a first winding shaft in order from a beginning edge to an ending edge of the recording medium. The wound recording medium is rewound, and the rewound recording medium is wound around a second winding shaft in order from the ending edge to the beginning edge of the recording medium.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: August 23, 2016
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Toshihiko Numazu, Toshio Nagasaka, Toshiaki Yajima
  • Publication number: 20160236891
    Abstract: In a front/back reversing unit, a base metal sheet having rollers attached thereon is engaged with a rotation spindle fixed to a fitting such that the base metal sheet is rotatable in a horizontal direction. When an operation of rolling up a print target medium is started and if winding tension with respect to the print target medium to be wrapped around a winding shaft becomes unbalanced, the front/back reversing unit rotates in accordance with the winding tension so as to balance the winding tension. Then, when the winding tension applied to the print target medium becomes balanced, the front/back reversing unit is returned to its original position by an elastic member, and the roller of the front/back reversing unit and the winding shaft become substantially parallel to each other.
    Type: Application
    Filed: January 25, 2016
    Publication date: August 18, 2016
    Inventors: Toshihiko Numazu, Yasuhiro Tsuyuki
  • Patent number: 9405256
    Abstract: A roll sheet image forming apparatus includes an introduction opening and a guide plate. Instead of a continuous sheet held in an apparatus main body, a continuous sheet for option feeding provided at an outside is introduced into the apparatus main body through the introduction opening. The guide plate is for splicing a lead sheet and a continuous sheet. When feeding the continuous sheet, a feeding unit is pulled out from the apparatus main body, a lead sheet is set to be conveyable towards an image forming unit, the feeding unit is again accommodated in the apparatus main body, a front end of the continuous sheet is placed on the guide plate, a rear end of the lead sheet is placed on the guide plate through the introduction opening, the rear end and the front end are spliced by a bonding member and then the feeding unit operates.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: August 2, 2016
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Toshihiko Numazu, Toshio Nagasaka
  • Publication number: 20160216653
    Abstract: A printing device includes a recording-medium-type reader that reads a type of a recording medium, a fixing-unit attachment that selectively attaches any one of a plurality of fixing units, the plurality of fixing units being different types from one another, and a conformity determiner that determines whether or not the type of the fixing unit attached in the fixing-unit attachment is conformed to the type of the recording medium read by the recording-medium-type reader.
    Type: Application
    Filed: September 12, 2014
    Publication date: July 28, 2016
    Applicant: CASIO COMPUTER CO., LTD.
    Inventors: Toshiaki YAJIMA, Toshihiko NUMAZU, Toshio NAGASAKA
  • Publication number: 20160216672
    Abstract: A printing device includes an image former performing an image formation on a recording medium in a rolled shape, and including a first roller pair that rotates to convey the recording medium in the rolled shape, and, a supplier including a second roller pair that rotates to convey the wound-off recording medium in the rolled shape to the image former, and a controller that actively rotates the second roller pair. The image former includes a determiner that determines whether or not the first roller pair that conveys the recording medium in the rolled shape conveyed from the second roller pair has held the recording medium in the rolled shape. When the determiner determines that the recording medium in the rolled shape has been held, the controller stops the active rotation of the second roller pair.
    Type: Application
    Filed: September 5, 2014
    Publication date: July 28, 2016
    Applicant: CASIO COMPUTER CO., LTD.
    Inventors: Toshihiko NUMAZU, Toshio NAGASAKA, Toshiaki YAJIMA
  • Publication number: 20160216674
    Abstract: A printing device includes a first ejector that ejects a recording medium to an exterior, a second ejector that enhances a rigidity of the recording medium more than by the first ejector, and ejects the recording medium to the exterior, and an ejector selector that selects either the first ejector or the second ejector.
    Type: Application
    Filed: September 5, 2014
    Publication date: July 28, 2016
    Applicant: CASIO COMPUTER CO., LTD.
    Inventors: Toshihiko NUMAZU, Toshio NAGASAKA, Toshiaki YAJIMA
  • Publication number: 20160041515
    Abstract: A roll sheet image forming apparatus includes an introduction opening and a guide plate. Instead of a continuous sheet held in an apparatus main body, a continuous sheet for option feeding provided at an outside is introduced into the apparatus main body through the introduction opening. The guide plate is for splicing a lead sheet and a continuous sheet. When feeding the continuous sheet, a feeding unit is pulled out from the apparatus main body, a lead sheet is set to be conveyable towards an image forming unit, the feeding unit is again accommodated in the apparatus main body, a front end of the continuous sheet is placed on the guide plate, a rear end of the lead sheet is placed on the guide plate through the introduction opening, the rear end and the front end are spliced by a bonding member and then the feeding unit operates.
    Type: Application
    Filed: July 23, 2015
    Publication date: February 11, 2016
    Applicant: CASIO COMPUTER CO., LTD.
    Inventors: Toshihiko NUMAZU, Toshio NAGASAKA
  • Patent number: 9122220
    Abstract: A printing apparatus includes a controller that, upon receipt of a printing suspension instruction during printing on a print medium by a printing device, causes a conveyor to stop a conveyance of the print medium from an upstream side to a downstream side after printing a mark on the print medium, causes the conveyor to convey the print medium from the downstream side to the upstream side, then to stop the conveyance of the print medium after a sensor detects the mark printed on the print medium, and upon receipt of a printing restart instruction, causes the conveyor to convey the print medium from a returned position where the print medium is stopped to the downstream side and controls a timing of a printing based on a detection of the mark by the sensor.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: September 1, 2015
    Assignees: CASIO ELECTRONICS MANUFACTURING CO., LTD., CASIO COMPUTER CO., LTD.
    Inventor: Toshihiko Numazu
  • Publication number: 20150177668
    Abstract: A printing system comprising: a controller that generates image data and controls printing; a first paper supplier that unwinds and supplies a printing medium wound around a winding shaft; a first image-forming unit that forms a first image based on image data, on the printing medium unwound and supplied by the first paper supplier; a winder that winds the printing medium on which the first image-forming unit formed the first image around a winding shaft in order from a beginning edge to a ending edge of the printing medium; a second paper supplier that unwinds and supplies the printing medium the winder wound around the winding shaft, in order from the ending edge to the beginning edge of the printing medium; and a second image-forming unit that forms a second image based on image data in which top and bottom have been reversed and left and right have been reversed in the area where the first image was formed on the printing medium unwound and supplied by the second paper supplier.
    Type: Application
    Filed: December 5, 2014
    Publication date: June 25, 2015
    Applicant: CASIO COMPUTER CO., LTD.
    Inventors: Toshihiko NUMAZU, Toshio NAGASAKA, Toshiaki YAJIMA
  • Publication number: 20150177666
    Abstract: A printing apparatus prints an image on a recording medium unwound by an unwinder. The recording medium is wound around a first winding shaft in order from a beginning edge to an ending edge of the recording medium. The wound recording medium is rewound, and the rewound recording medium is wound around a second winding shaft in order from the ending edge to the beginning edge of the recording medium.
    Type: Application
    Filed: December 5, 2014
    Publication date: June 25, 2015
    Applicant: CASIO COMPUTER CO., LTD.
    Inventors: Toshihiko NUMAZU, Toshio NAGASAKA, Toshiaki YAJIMA
  • Patent number: 8983338
    Abstract: In an image forming apparatus provided with a detachable fixing unit having fixing paired-rollers, a heating unit heats at least one of the fixing paired-rollers, and a temperature detecting unit detects a temperature of the detachable fixing unit. The image forming apparatus is further provided with an adjustment mechanism for preventing the detachable fixing unit from being taken out from the apparatus body, when the temperature detecting unit determines that the temperature of the detachable fixing unit exceeds a predetermined value, and allowing the detachable fixing unit to be taken out from the apparatus body, when the temperature detecting unit determines that the temperature of the detachable fixing unit is the predetermined value or less, whereby protecting users from getting their hands burned when taking out the detachable fixing unit from the apparatus body.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: March 17, 2015
    Assignees: Casio Electronics Manufacturing Co., Ltd., Casio Computer Co., Ltd.
    Inventors: Toshihiko Numazu, Kazuhiro Kameyama, Yusuke Tokuda, Toshihiro Ogawa, Ryoji Abe
  • Publication number: 20140064747
    Abstract: A printing apparatus includes a controller that, upon receipt of a printing suspension instruction during printing on a print medium by a printing device, causes a conveyor to stop a conveyance of the print medium from an upstream side to a downstream side after printing a mark on the print medium, causes the conveyor to convey the print medium from the downstream side to the upstream side, then to stop the conveyance of the print medium after a sensor detects the mark printed on the print medium, and upon receipt of a printing restart instruction, causes the conveyor to convey the print medium from a returned position where the print medium is stopped to the downstream side and controls a timing of a printing based on a detection of the mark by the sensor.
    Type: Application
    Filed: August 5, 2013
    Publication date: March 6, 2014
    Applicants: CASIO COMPUTER CO., LTD., CASIO ELECTRONICS MANUFACTURING CO., LTD.
    Inventor: Toshihiko NUMAZU
  • Patent number: 6463231
    Abstract: An upper body which can be shifted from and toward a lower body through a link mechanism is formed. A drum unit and a toner unit are arranged on the side of the upper body. The upper body is opened in the parallel with respect to the lower body with a predetermined interval, by the link mechanism including arms. In the state where the upper body is opened, the drum unit and the toner unit can be detached from and attached to the printer device in frontward and backward directions, by sliding a sliding member arranged on the upper body.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: October 8, 2002
    Assignees: Casio Computer Co., Ltd., Casio Electronics Manufacturing Co., Ltd.
    Inventors: Toshihiko Numazu, Shigeru Hirosawa, Tetsushi Kurokawa, Kazuhiro Kameyama, Noriki Ono, Yasuhiro Tsuyuki, Seiji Tachibana, Eiichi Nara
  • Publication number: 20010008588
    Abstract: An upper body which can be shifted from and toward a lower body through a link mechanism is formed. A drum unit and a toner unit are arranged on the side of the upper body. The upper body is opened in parallel with respect to the lower body with a predetermined interval, by the link mechanism including arms. In the state where the upper body is opened, the drum unit and the toner unit can be detached from and attached to the printer device in frontward and backward directions, by sliding a sliding member arranged on the upper body.
    Type: Application
    Filed: December 20, 2000
    Publication date: July 19, 2001
    Inventors: Toshihiko Numazu, Shigeru Hirosawa, Tetsushi Kurokawa, Kazuhiro Kameyama, Noriki Ono, Yasuhiro Tsuyuki, Seiji Tachibana, Eiichi Nara
  • Patent number: 5970286
    Abstract: A motor starts its rotation, and a clutch is operated to drive both of a first driving force transmission system for color printing, including drum gears, and a second driving force transmission system for monochrome printing, including a drum gear. The clutch is disengaged to stop the first system when a first sensor detects a mark on one photosensitive drum of the first system at the same time that a second sensor detects a mark on one drum driving gear of the first system. Next, when a third sensor detects a mark on another photosensitive drum of the second system at the same time that a fourth sensor detects a mark on another drum driving gear of the second system, the clutch is reengaged. Consequently, positionings of all the photosensitive body drums (drum gears) for color printing to the photosensitive drum (drum gear) for monochrome printing are performed without causing positional differences by inertia at the time of stop.
    Type: Grant
    Filed: July 23, 1998
    Date of Patent: October 19, 1999
    Assignees: Casio ComputerCo., Ltd., Casio Electronics Manufacturing Co., Ltd.
    Inventors: Toshihiko Numazu, Noriki Ono, Takao Yorifuji, Moriyuki Kouroku, Yoshiharu Abe, Yasushi Nakamura
  • Patent number: 5765082
    Abstract: An image forming apparatus includes a plurality of image carriers arranged side by side along the outer surface of a conveying portion of a transfer belt. The transfer belt is stretched between a first upstream roller and a second downstream roller. An image forming medium is conveyed on the belt so as to have multiple color images transferred thereto. The transfer belt has a swing lever so as to move the belt between a horizontal full color position and an inclined monochrome position. A stationary support roller which is arranged within the transfer belt and at a position nearer to the second downstream roller maintains a position of the image forming medium constant even when a monochrome image is being transferred. In addition, an electrostatic attraction roller located outside the transfer belt is arranged at a specific angle relative to the first roller to assist in the attraction of the image forming medium to the transfer belt.
    Type: Grant
    Filed: November 19, 1996
    Date of Patent: June 9, 1998
    Assignee: Casio Computer Co., Ltd.
    Inventors: Toshihiko Numazu, Kazuyoshi Hagiwara, Tetsuya Abe