Patents by Inventor Seiji Niida

Seiji Niida 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: 6733101
    Abstract: The main controller of an ink-jet printer sets a read address in a driver controller to read out image data from an image memory which stores image data to be printed, in units of print lines. The driver controller reads out image data of one line from the image memory in accordance with the set address to print the image of one line, and conveys printing paper in synchronism with this printing. The main controller controls setting of the read address in the driver controller to execute magnification processing in the direction of conveyance on the basis of a set correction amount. When appropriate magnification processing is performed for print image data, any mechanical error of the conveyor mechanism is absorbed.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: May 11, 2004
    Assignee: Canon Aptex Kabushiki Kaisha
    Inventors: Akira Katayama, Seiji Niida
  • Publication number: 20020089560
    Abstract: The main controller of an ink-jet printer sets a read address in a driver controller to read out image data from an image memory which stores image data to be printed, in units of print lines. The driver controller reads out image data of one line from the image memory in accordance with the set address to print the image of one line, and conveys printing paper in synchronism with this printing. The main controller controls setting of the read address in the driver controller to execute magnification processing in the direction of conveyance on the basis of a set correction amount. When appropriate magnification processing is performed for print image data, any mechanical error of the conveyor mechanism is absorbed.
    Type: Application
    Filed: December 22, 1998
    Publication date: July 11, 2002
    Inventors: AKIRA KATAYAMA, SEIJI NIIDA
  • Patent number: 6002844
    Abstract: This invention not only separates printing and barcode checking as independent processes but also simplifies printer processing to allow to print a large number of barcodes at high speed and to satisfactorily check barcodes. For this purpose, when a print control circuit unit (501) receives print information including a barcode, information associated with barcode checking is transmitted to a barcode checker unit (601) prior to printing. Upon actually printing an image including a barcode, when the printed barcode is conveyed to the position of a reader (603) in the barcode checker unit (601), an RD.sub.-- TRG signal is output to check the printed barcode. Upon reception of this signal, the barcode checker unit (601) reads the printed barcode a plurality of number of times at different positions, and when the normal reading ratio is low, it outputs an error signal to the print control circuit unit (501).
    Type: Grant
    Filed: August 4, 1997
    Date of Patent: December 14, 1999
    Assignee: Canon Aptex Inc.
    Inventors: Hideaki Kishida, Katsuo Nakayama, Takefumi Tamura, Kimio Ebata, Seiji Niida