Patents by Inventor Yutaka Udagawa

Yutaka Udagawa 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: 6398358
    Abstract: An ink jet textile printing method forms an image on cloths in an image forming operation by repeating a step of applying ink on the cloths from an ink discharge port of a recording head, the recording head relatively main-scanning to form the image in a main scan direction, and a step of relatively conveying the cloths in a sub-scan direction. The method includes the steps of forming the image on the cloths by applying ink on the cloths from the recording head based on image data. The method further includes the step of temporarily stopping the image forming operation in accordance with an indication to effect a temporary halt of the image forming operation. When the temporary halt is indicated while the recording head performs a main scan in the image forming operation, the image forming operation by the main scan is completed, and then the temporary halt of the image forming operation is effected by moving the recording head to a standby position.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: June 4, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Miyake, Tomohiro Aoki, Kazuyoshi Takahashi, Akio Suzuki, Mitsuru Kurata, Tokihide Ebata, Yoshihiro Takada, Kunihiko Matsuzawa, Hideyuki Tanaami, Yutaka Udagawa, Masatoshi Ikkatai, Keiju Kuboki, Yasushi Miura, Masahiro Nishio, Yasuyuki Takanaka, Eiichi Takagi, Yoshio Komaki, Nobuhiko Ogata
  • Patent number: 6388767
    Abstract: An image processing apparatus having a function for detecting a specific original decides the degree of similarity between the image represented by input image signals and the image of a specific original which is not to be allowed to be copied, e.g., currency. The image processing apparatus determines the content of the image processing in accordance with the result of the decision, and processes the input image signals on the basis of the determined content.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: May 14, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yutaka Udagawa, Masahiro Funada, Ken-ich Ohta, Yoichi Takaragi, Toshiyuki Kitamura, Eiji Ohta
  • Patent number: 6381030
    Abstract: An image processing apparatus having a function for detecting a specific original decides the degree of similarity between the image represented by input image signals and the image of a specific original which is not to be allowed to be copied, e.g., currency. The image processing apparatus determines the content of the image processing in accordance with the result of the decision, and processes the input image signals on the basis of the determined content.
    Type: Grant
    Filed: June 14, 2000
    Date of Patent: April 30, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yutaka Udagawa, Masahiro Funada, Ken-ich Ohta, Yoichi Takaragi, Toshiyuki Kitamura, Eiji Ohta
  • Patent number: 6346989
    Abstract: A device for controlling the copying of an original includes a discriminator for discriminating a specific original in accordance with the degree of significance of the specific original, when discriminating a plurality of specific originals in forming one image. According to another embodiment, the device includes an inhibitor for inhibiting the copying of a specific original, when a memory or peripheral circuit having the discrimination criteria of the specific original is removed or exchanged, or it is out of order, and making a discrimination of the specific original by the same characteristic data of the specific original, even if the image is input from different input equipment, wherein the correct discrimination is effected based on the color tint distribution of the specific original.
    Type: Grant
    Filed: January 2, 1997
    Date of Patent: February 12, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahiro Funada, Kenichi Ohta, Yutaka Udagawa, Yoichi Takaragi, Mitsuru Kurita, Eiji Ohta, Koichi Ishimoto
  • Patent number: 6231155
    Abstract: An image recording apparatus includes a recording unit integrally having an image forming recording head and a memory for storing a correction datum for correcting non-uniform image formation property; a reader for reading the correction datum from the memory; and a device for changing image forming conditions in accordance with the correction datum read by the reader. The apparatus also can alter the image forming conditions changed by the changing device when the non-uniformity of the recording unit changes.
    Type: Grant
    Filed: August 24, 1998
    Date of Patent: May 15, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yutaka Udagawa, Yoshiaki Takayanagi, Katsuyoshi Maeshima, Yasuhiro Numata, Takayuki Matsuo, Miyuki Matsubara
  • Patent number: 6116728
    Abstract: An ink jet textile printing apparatus for performing printing by reading an original image created by a designer, converting the original image into original data represented by an electric signal, retrieving the original data for processing to be output as image data, and recording data on cloth based on the image data. The ink jet textile printing apparatus has a first ink jet recording head provided upstream of a recording position, and a second ink jet recording head provided downstream thereof, and is provided with a drying unit located between the recording heads, whereby high-quality recorded images with less bleeding can be obtained by recording on a recording area again with the second ink jet recording head after drying the recording area on the cloth recorded by the first ink jet recording head with the drying unit.
    Type: Grant
    Filed: February 25, 1993
    Date of Patent: September 12, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Miyake, Tomohiro Aoki, Kazuyoshi Takahashi, Akio Suzuki, Mitsuru Kurata, Tokihide Ebata, Yoshihiro Takada, Kunihiko Matsuzawa, Hideyuki Tanaami, Yutaka Udagawa, Masatoshi Ikkatai, Keiju Kuboki, Yasushi Miura, Masahiro Nishio, Yasuyuki Takanaka, Eiichi Takagi, Yoshio Komaki, Nobuhiko Ogata
  • Patent number: 5956052
    Abstract: An image recording apparatus includes a recording unit integrally having an image forming recording head and a memory for storing a correction datum for correcting non-uniform image formation property; a reader for reading the correction datum from the memory; and a device for changing image forming conditions in accordance with the correction datum read by the reader. The apparatus also can alter the image forming conditions changed by the changing device when the non-uniformity of the recording unit changes.
    Type: Grant
    Filed: December 3, 1992
    Date of Patent: September 21, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yutaka Udagawa, Yoshiaki Takayanagi, Katsuyoshi Maeshima, Yasuhiro Numata, Takayuki Matsuo, Miyuki Matsubara
  • Patent number: 5847849
    Abstract: An image processor having a circuit for holding data on features of registered specific images, a circuit for determining the degree of similarity between features of an input image and the held features of each of the specific images, and a circuit for updating the held content of the holding circuit from the outside through a line. The image processor also has a judgment circuit for determining the degree of similarity between an input image and each of the specific images according to tint distributions of these images, and a circuit for registering data on the tint distribution of each specific image.
    Type: Grant
    Filed: November 10, 1994
    Date of Patent: December 8, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahiro Funada, Ken-Ichi Ohta, Yutaka Udagawa, Yoichi Takaragi, Eiji Ohta
  • Patent number: 5790932
    Abstract: An image forming apparatus, such as a copying machine, is provided with a function of detecting in an original presented for copying, a particular image which should not be copied, for example, banknotes and other negotiable instruments. Upon detection of such image in an original presented for copying, the apparatus, in reproducing the image, synthesizes with that image a pattern denoting information which identifies the particular machine on which the copying was performed. For example, the pattern used for that purpose may be the manufacturer's serial number. In particular, the machine may binary-code input image data before synthesis with the pattern.
    Type: Grant
    Filed: January 8, 1997
    Date of Patent: August 4, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshio Komaki, Yutaka Udagawa
  • Patent number: 5790165
    Abstract: In an image determination unit, a possibility that a read image is a predetermined image which is prohibited from an image formation is determined. If the possibility exists, an operation of the image formation is interrupted and whether or not the pertinent image is a predetermined image is determined based on the image information which is continuously inputted. If it is determined that the input image is a specific original, the image formation is suspended, while if not, the image formation processing is restarted.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: August 4, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keiju Kuboki, Yasuhiro Yamada, Yutaka Udagawa, Toshihiko Otsubo, Eiichi Nishikawa
  • Patent number: 5621503
    Abstract: An image forming apparatus, such as a copying machine, is provided with a function of detecting in an original presented for copying, a particular image which should not be copied, for example, banknotes and other negotiable instruments. Upon detection of such image in an original presented for copying, the apparatus, in reproducing the image synthesizes with that image a pattern denoting information which identifies the particular machine on which the copying was performed. For example, the pattern used for that purpose may be the manufacturer's serial number. In particular, the machine may binary-code input image data before synthesis with the pattern. In another aspect, the apparatus and method of the invention discriminate a degree of similarity between input image data and the predetermined image which is not to be copied, delays the input image data during performance of the discrimination, and processes the delayed image data in a way which depends upon the degree of similarity discriminated.
    Type: Grant
    Filed: March 14, 1994
    Date of Patent: April 15, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshio Komaki, Yutaka Udagawa
  • Patent number: 5592304
    Abstract: The present invention provides a multi-function image processing apparatus including a generating device for generating serial-scanned image data which has an overlap portion and a predetermined width and a writing device for writing the image data generated by the generating device in a state where the overlap portion has been deleted in such a manner that the image data is stored in a memory. The apparatus many also include a reading device for reading image data in such a manner that at least a portion of the image data overlaps when the image data having a predetermined width is, by serial scanning, read from the storage device which stores the image data and a processing device for processing the image data which has been read out.
    Type: Grant
    Filed: June 22, 1994
    Date of Patent: January 7, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yutaka Udagawa, Toshihiko Otsubo, Masahiro Nishio
  • Patent number: 5481377
    Abstract: An image processing apparatus having a function for detecting a specific original decides the degree of similarity between the image represented by input image signals and the image of a specific original which is not to be allowed to be copied, e.g., currency. The image processing apparatus determines the content of the image processing in accordance with the result of the decision, and processes the input image signals on the basis of the determined content.
    Type: Grant
    Filed: June 24, 1994
    Date of Patent: January 2, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yutaka Udagawa, Masahiro Funada, Ken-ich Ohta, Yoichi Takaragi, Toshiyuki Kitamura, Eiji Ohta
  • Patent number: 5430525
    Abstract: Disclosed is an image processing apparatus having plural types of input devices (scanners, a still-video camera, a film scanner, etc.) for inputting image data. The type of input device which has entered the image data is identified, and an image judging processing method is decided from plural types of such methods based upon the type of input device identified. In accordance with the image judging processing method decided, the identity is judged between the image data inputted from the input device of the type identified and a specific image.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: July 4, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Eiji Ohta, Masahiro Funada, Ken-ichi Ohta, Yutaka Udagawa, Yoichi Takaragi
  • Patent number: 5363202
    Abstract: An image processing apparatus having a function for detecting a specific original decides the degree of similarity between the image represented by input image signals and the image of a specific original which is not to be allowed to be copied, e.g., currency. The image processing apparatus determines the content of the image processing in accordance with the result of the decision, and processes the input image signals on the basis of the determined content.
    Type: Grant
    Filed: March 27, 1992
    Date of Patent: November 8, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yutaka Udagawa, Masahiro Funada, Ken-ich Ohta, Yoichi Takaragi, Toshiyuki Kitamura, Eiji Ohta
  • Patent number: 5363454
    Abstract: An image processing apparatus is provided with an input of multivalued image data, converts the inputted multivalued image data into binary image data, generates color data based upon the binary image data resulting from the conversion, judges identity between the generated color data and color data of a plurality of different specific images, and outputs the binary image data resulting from the conversion if non-identity is judged. If identity is judged to exist, however, output of the binary image data resulting from the conversion is halted.
    Type: Grant
    Filed: June 26, 1992
    Date of Patent: November 8, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yutaka Udagawa, Masahiro Funada, Ken-ichi Ohta, Yoichi Takaragi, Eiji Ohta
  • Patent number: 5323488
    Abstract: An access circuit and method for accessing a single memory having a plurality of access request sources, in which a minimum access time of the memory is adopted as a unit time, a time corresponding to a minimum possible waiting time of each of the plurality of access request sources is adopted as one period, and the period is set as a set of the unit times. The one period is equally divided into divided times in accordance with the number of the access request sources, and each divided time is equally allocated to a corresponding one of the access request sources as an access time therefor. The memory is accessed by the access request sources at every access time allocated to the access request sources.
    Type: Grant
    Filed: September 14, 1990
    Date of Patent: June 21, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yutaka Udagawa
  • Patent number: 5315404
    Abstract: An image processor, for example a digital color copier, receives an image signal transmitted in one of a plurality of different modes to process an image of one picture. An analyzer determines the processing mode of the received image signal. A first processor is selected for sequentially processing the image signal for one picture a line at a time in accordance with the analyzer determining one processing mode was received. A second processor is selected and receives the whole image signal for one picture for processing as a block in accordance with the analyzer determining a different mode was received. A processed image is output from the processor selected by the analyzer.
    Type: Grant
    Filed: October 11, 1991
    Date of Patent: May 24, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keiju Kuboki, Kiyohisa Sugishima, Yutaka Udagawa, Toshihiko Otsubo, Masahiro Nishio
  • Patent number: 5303068
    Abstract: A memory addressing method by which it is possible to write into, or read out from, a memory a plurality of kinds of image data whose pixel data are transmitted in any of two or more different orders (sequences). In this method, a parameter can be preset in correspondence to the kind of the image data, an address value is calculated for every pixel datum on the basis of the set parameter, and each of the pixel data is written or read out by using the calculated address value.
    Type: Grant
    Filed: June 8, 1993
    Date of Patent: April 12, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yutaka Udagawa, Toshihiko Ohtsubo
  • Patent number: 5099260
    Abstract: There is disclosed an image forming apparatus for overlaying plural images in succession, in which a downstream image overlay is controlled in timing by an upstream image overlay, in order to avoid positional aberrations in the supperposed multiple images.
    Type: Grant
    Filed: April 17, 1991
    Date of Patent: March 24, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yukio Sato, Masafumi Wataya, Hiroaki Ishii, Yutaka Udagawa