Patents by Inventor Makoto Katsuma
Makoto Katsuma 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).
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Patent number: 6520623Abstract: A printing method which can complement an image defect caused by ejection failure and thus to obtain high definition image even when failure, such as faulty ejection or non-ejection failure, is caused in any of ejection mechanism as a plurality of printing elements of a printing head. The printing method includes step of detecting faulty nozzle of the printing head, step of performing printing excluding the faulty nozzle during primary scanning, step subsequently of providing a shift for the printing head in an auxiliary scanning direction at least a pitch between the nozzles, step of performing complemental printing with other normal nozzle for a printing region corresponding to the faulty nozzle which could not be printed in the printing step, and step of eliminating shift of the printing head in the auxiliary scanning direction.Type: GrantFiled: December 26, 1996Date of Patent: February 18, 2003Assignee: Canon Kabushiki KaishaInventors: Hiroyuki Miyake, Makoto Katsuma
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Patent number: 6511146Abstract: An image forming apparatus wherein an image for a predetermined region of a recording material is formed using images having a complementary relation by a plurality of scans of a recording head, the apparatus including allocating means for allocating a multi-level image data for the predetermined region for the scans; gradation reducing means for reducing gradation of the multi-level image data allocated by the allocating means, respectively; image forming means for forming an image having the complementary relation by driving the recording head in the scans on the basis of the image data having gradations reduced by the reducing means; wherein the complementary relation of the image by the forming means is reduced by at least one of the allocating means and the gradation reducing means.Type: GrantFiled: February 27, 2002Date of Patent: January 28, 2003Assignee: Canon Kabushiki KaishaInventors: Yoshikazu Ishikawa, Hiroyuki Miyake, Makoto Katsuma, Hiroshi Endo, Takeshi Ozasa, Junkichi Abe
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Patent number: 6511143Abstract: An image forming apparatus wherein an image for a predetermined region of a recording material is formed using images having a complementary relation by a plurality of scans of a recording head, the apparatus including allocating means for allocating a multi-level image data for the predetermined region for the scans; gradation reducing means for reducing gradation of the multi-level image data allocated by the allocating means, respectively; image forming means for forming an image having the complementary relation by driving the recording head in the scans on the basis of the image data having gradations reduced by the reducing means; wherein the complementary relation of the image by the forming means is reduced by at least one of the allocating means and the gradation reducing means.Type: GrantFiled: June 1, 1999Date of Patent: January 28, 2003Assignee: Canon Kabushiki KaishaInventors: Yoshikazu Ishikawa, Hiroyuki Miyake, Makoto Katsuma, Hiroshi Endo, Takeshi Ozasa, Junkichi Abe
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Publication number: 20020122087Abstract: An image forming apparatus wherein an image for a predetermined region of a recording material is formed using images having a complementary relation by a plurality of scans of a recording head, the apparatus including allocating means for allocating a multi-level image data for the predetermined region for the scans; gradation reducing means for reducing gradation of the multi-level image data allocated by the allocating means, respectively; image forming means for forming an image having the complementary relation by driving the recording head in the scans on the basis of the image data having gradations reduced by the reducing means; wherein the complementary relation of the image by the forming means is reduced by at least one of the allocating means and the gradation reducing means.Type: ApplicationFiled: February 27, 2002Publication date: September 5, 2002Inventors: Yoshikazu Ishikawa, Hiroyuki Miyake, Makoto Katsuma, Hiroshi Endo, Takeshi Ozasa, Junkichi Abe
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Patent number: 6354688Abstract: An image processing apparatus includes an image forming part for forming images by discharging liquid ink from a plurality of recording elements, a processing unit for processing image data in accordance with processing conditions corresponding to the recording elements, and a preparing unit for inputting read data obtained by reading the images formed by the image forming part and preparing the processing conditions by comparing the read data with standard values preset depending on the kinds of recording agents. An image processing method including the steps of comparing standard values previously set depending on the kinds of recording agents with read data obtained by reading pattern images having a plurality of gradations recorded by an image recording part, and preparing a correction table for each of the recording elements.Type: GrantFiled: April 23, 1999Date of Patent: March 12, 2002Assignee: Canon Kabushiki KaishaInventors: Shizuko Inoue, Hiroyuki Miyake, Makoto Katsuma
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Patent number: 6343137Abstract: A method of processing an image comprises the steps of: supplying a photographing condition and/or a conversion process condition, e.g., at the time of photographing; using the supplied photographing condition and the supplied conversion process condition as parameters; and performing a processing, such as a conversion process, for an image signal of an image by using the parameters.Type: GrantFiled: October 12, 1995Date of Patent: January 29, 2002Assignee: Canon Kabushiki KaishaInventors: Hiroyuki Kimura, Koji Takahashi, Kazunobu Urushihara, Susumu Matsumura, Makoto Katsuma, Hiroshi Ohmura
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Publication number: 20010012031Abstract: A printing method which can complement an image defect caused by ejection failure and thus to obtain high definition image even when failure, such as faulty ejection or non-ejection failure, is caused in any of ejection means as a plurality of printing elements of a printing head. The printing method includes step of detecting faulty nozzle of the printing head, step of performing printing excluding the faulty nozzle during primary scanning, step subsequently of providing a shift for the printing head in an auxiliary scanning direction at least a pitch between the nozzles, step of performing complemental printing with other normal nozzle for a printing region corresponding to the faulty nozzle which could not be printed in the printing step,. and step of eliminating shift of the printing head in the auxiliary scanning direction.Type: ApplicationFiled: December 26, 1996Publication date: August 9, 2001Inventors: HIROYUKI MIYAKE, MAKOTO KATSUMA
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Patent number: 6038373Abstract: An image processing system is constructed of an input device for inputting color image data which does not include color components corresponding to specific colors' a storing media for storing a table for making the color image data which does not include the color components corresponding to the specific colors correspond to output image data constructed of color components corresponding to the plurality of recording materials including the specific colors' and a developing unit for developing the input color image data into output image data constructed of the color components corresponding to the plurality of recording materials including the specific colors by using the table. The developing unit executes the developing process by using an interpolating process according to the kinds of color components corresponding to the recording materials.Type: GrantFiled: May 28, 1997Date of Patent: March 14, 2000Assignee: Canon Kabushiki KaishaInventors: Hisashi Matsumoto, Makoto Katsuma, Akio Iino
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Patent number: 6031974Abstract: The invention seeks to reduce amount of image data without detracting from picture quality, thereby lowering processing speed and holding down memory cost. While preserving the density of color image data, a computer compresses the color image data, which has been outputted by an image scanner, to a prescribed number of colors on the basis of the colors of inks. An image processor binarizes the results of compression, while preserving density, on the basis of ink colors. A main unit repeatedly prints a basic image, which is represented by the binarized image data, on cloth supplied from a supply unit.Type: GrantFiled: March 20, 1995Date of Patent: February 29, 2000Assignee: Canon Kabushiki KaishaInventors: Kazuyoshi Takahashi, Makoto Katsuma, Takashi Watanabe, Hiroshi Endo, Toshiyuki Yanaka, Toshiaki Mabuchi, Eiichi Takagi
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Patent number: 5398123Abstract: An image processing method and apparatus are disclosed, wherein differences between maximum and minimum values for predetermined pixel data of a color image to be processed, for three dimensional pixel data, are calculated, a color correction masking coefficient is determined in accordance with the operation result. If necessary, the image is judged to determine if it requires color masking correction, and thereafter the color correction masking coefficient is determined.Type: GrantFiled: August 24, 1989Date of Patent: March 14, 1995Assignee: Canon Kabushiki KaishaInventor: Makoto Katsuma
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Patent number: 5353132Abstract: The type of color image is identified on the basis of a distribution of color information for each color. A plurality of different types of data compression algorithms prepared beforehand are changed according to the results of the identification. Preferably, the difference between the maximum value and the minimum value of each picture element of respective color separation data of a color image is determined, and further, a histogram of frequency of color information obtained for each color is determined. On the basis of the histogram, the type of the color image is identified by the fact that whether or not the histogram contains a peak greater than a predetermined value or whether or not the deviation of the histogram is greater than a predetermined value.Type: GrantFiled: June 22, 1992Date of Patent: October 4, 1994Assignee: Canon Kabushiki KaishaInventor: Makoto Katsuma
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Still image processing method for blurring an image background and producing a visual flowing effect
Patent number: 5125041Abstract: A still image processing method which can execute the effective flowing process is provided. In this method, when the flowing process is executed by shifting some or all of the pixels constituting a still image of one image plane in a predetermined direction, if no image information to be shifted exists at the first image position, the image information from elsewhere in the image plane is shifted to the second image position. The image information at the second image position is obtained by shifting the image information in the image plane in the direction opposite to the principal shifting direction.Type: GrantFiled: February 28, 1990Date of Patent: June 23, 1992Assignee: Canon Kabushiki KaishaInventors: Hiroyuki Kimura, Koji Takahashi, Kazunobu Urushihara, Susumu Matsumura, Makoto Katsuma, Hiroshi Ohmura -
Patent number: 4974068Abstract: There is a film image information reading apparatus called a film scanner. This apparatus comprises: a lighting optical system to illuminate a film document; a photoelectric conversion element, such as a CCD to convert the image information of the film document into the electric signal; and an adjusting circuit to adjust the output of the photoelectrical conversion element such that a predetermined density of the film document is output as an output of almost the saturation level of that element. The predetermined density is the color density of the base color of a negative film. The adjusting circuit may control the charge storage period, gain, or output level of the photoelectric conversion element. With this apparatus, the positive image can be easily derived by reversing the negative image without considering the base color of the negative film and the image signal of a high quality can be obtained.Type: GrantFiled: February 10, 1987Date of Patent: November 27, 1990Assignee: Canon Kabushiki KaishaInventors: Akira Hiramatsu, Yuichi Sato, Tokuichi Tsunekawa, Makoto Katsuma, Takeshi Kobayashi, Shigeki Yamada
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Patent number: 4958217Abstract: An image processing apparatus capable of extracting a particular image area from an image by designating a color hue of the desired particular image area. After indication on one or more points in an object region of interest, an initial range of hue or of brightness is designated, and a predetermined color is painted throughout a region adjacent to the indicated point(s) and having a hue or brightness, respectively, within the predetermined range. If that process results in the coloring of an area exceeding that which the operator desires to cover, the predetermined range of hue or brightness, as the case may be, is narrowed, and the process is repeated.Type: GrantFiled: July 27, 1989Date of Patent: September 18, 1990Assignee: Canon Kabushiki KaishaInventors: Hiroyuki Kimura, Takeshi Kobayashi, Makoto Katsuma, Kazunobu Urushihara, Susumu Matsumura, Hiroshi Ohmura
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Patent number: 4953227Abstract: As image processing method suitable for creative image generation in which the image data of an original image are divided into plural areas each consisting of plural pixels, the shape of these areas is modified according to the image data of the original image, and the pixel data in each area are processed in accordance with a representative value of the image data.Type: GrantFiled: January 28, 1987Date of Patent: August 28, 1990Assignee: Canon Kabushiki KaishaInventors: Makoto Katsuma, Hiroyuki Kimura, Kazunori Urushihara, Susumu Matsumura, Hiroshi Ohmura, Shunichi Tamai, Hideki Tanaka
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Patent number: 4933983Abstract: An image data reading apparatus includes a photoelectric conversion device for converting image data on an original into electric signals, a light source for illuminating the original, a detector for detecting the shading correction values for the light source and the photoelectric conversion device, and an image processor for effecting shading correction on the video data output from the photoelectric conversion device with the shading correction value detected by the correction value detector.Type: GrantFiled: February 11, 1987Date of Patent: June 12, 1990Assignee: Canon Kabushiki KaishaInventors: Akira Hiramatsu, Yuichi Sato, Tokuichi Tsunekawa, Shigeki Yamada, Takeshi Kobayashi, Makoto Katsuma
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Patent number: 4901063Abstract: There is an image processing apparatus to obtain a desired processed image by performing a predetermined image process to an input image. This apparatus comprises: an image input unit to input the image data; an image processor which can perform different image processes; a selector to select the kind of image process to be executed by the image processor; a memory to store different sample processed images which were subjected to the image processes; and a display to display both a sample image before execution of the image process and the sample processed image corresponding to the selected image process from the memory in accordance with selection by the selector. The image processor can perform the edge extracting process, mosaic process, and the like. With this apparatus, the operator can easily obtain various sample processed images and can extend the processed image of the original image by merely inputting a processing command.Type: GrantFiled: February 24, 1987Date of Patent: February 13, 1990Assignee: Canon Kabushiki KaishaInventors: Hiroyuki Kimura, Masayuki Iimura, Makoto Katsuma, Kazunobu Urushihara, Susumu Matsumura, Hiroshi Ohmura
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Patent number: 4833544Abstract: An image processing apparatus is capable of reading an original image with an arbitrary image magnification, by projecting an original image onto a linear image sensor through an optical system of a variable image magnification, and moving the original image with respect to the image sensor with a speed corresponding to the selected image magnification of the optical system.Type: GrantFiled: December 23, 1986Date of Patent: May 23, 1989Assignee: Canon Kabushiki KaishaInventors: Yuichi Sato, Tokuichi Tsunekawa, Akira Hiramatsu, Makoto Katsuma, Shigeki Yamada, Takeshi Kobayashi
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Patent number: 4660933Abstract: Travelling oscillation waves are generated in a lens assembly at an oscillation element by impressing a voltage to an electro-restriction element or elements, whereupon a lens driving operation is performed by frictionally driving a moving element which is pressed in contact with the oscillation element. In the case of manual operation, an oscillation ring operating as the oscillation element is separated from a rotation ring which constitutes the moving element by a clutch device and then the rotation ring is manually rotated for effecting the lens driving operation.Type: GrantFiled: April 29, 1986Date of Patent: April 28, 1987Assignee: Canon Kabushiki KaishaInventors: Hidefumi Notagashira, Akiyasu Sumi, Hiroyoshi Inaba, Makoto Katsuma, Hiroyasu Murakami, Akira Hiramatsu
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Patent number: 4634915Abstract: A surface wave motor for driving a rotor by a traveling surface wave has at least three pins radially extending from a ring-shaped vibration member to support the vibration member.Type: GrantFiled: September 9, 1985Date of Patent: January 6, 1987Assignee: Canon Kabushiki KaishaInventors: Hitoshi Mukoujima, Akira Hiramatsu, Hiroyasu Murakami, Makoto Katsuma