Patents by Inventor Katsuyoshi Maeshima
Katsuyoshi Maeshima 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: 7061652Abstract: Predetermined additional information is superposed as a dot pattern on image information read by an image scanner, and the image information superposed with the additional information is modulated. The modulated information is demodulated and recorded on a recording medium to perform a series of operations, i.e., to simultaneously satisfy both pattern addition and modulation/demodulation.Type: GrantFiled: November 27, 2001Date of Patent: June 13, 2006Assignee: Canon Kabushiki KaishaInventors: Mitsuru Kurita, Katsuyoshi Maeshima, Masahiro Funada, Yasumichi Suzuki, Yoichi Takaragi, Akiko Kanno, Koichi Ishimoto
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Patent number: 7057775Abstract: Predetermined additional information is superposed as a dot pattern on image information read by an image scanner, and the image information superposed with the additional information is modulated. The modulated information is demodulated and recorded on a recording medium to perform a series of operations, i.e., to simultaneously satisfy both pattern addition and modulation/demodulation.Type: GrantFiled: October 9, 2002Date of Patent: June 6, 2006Assignee: Canon Kabushiki KaishaInventors: Mitsuru Kurita, Katsuyoshi Maeshima, Masahiro Funada, Yasumichi Suzuki, Yoichi Takaragi, Akiko Kanno, Koichi Ishimoto
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Publication number: 20030035151Abstract: Predetermined additional information is superposed as a dot pattern on image information read by an image scanner, and the image information superposed with the additional information is modulated. The modulated information is demodulated and recorded on a recording medium to perform a series of operations, i.e., to simultaneously satisfy both pattern addition and modulation/demodulation.Type: ApplicationFiled: October 9, 2002Publication date: February 20, 2003Applicant: CANON KABUSHIKI KAISHAInventors: Mitsuru Kurita, Katsuyoshi Maeshima, Masahiro Funada, Yasumichi Suzuki, Yoichi Takaragi, Akiko Kanno, Koichi Ishimoto
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Patent number: 6421145Abstract: Predetermined additional information is superposed as a dot pattern on image information read by an image scanner, and the image information superposed with the additional information is modulated. The modulated information is demodulated and recorded on a recording medium to perform a series of operations, i.e., to simultaneously satisfy both pattern addition and modulation/demodulation.Type: GrantFiled: May 27, 1997Date of Patent: July 16, 2002Assignee: Canon Kabushiki KaishaInventors: Mitsuru Kurita, Katsuyoshi Maeshima, Masahiro Funada, Yasumichi Suzuki, Yoichi Takaragi, Akiko Kanno, Koichi Ishimoto
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Patent number: 6393164Abstract: There is disclosed an image recording apparatus having reader for photoelectrically reading an original and generating image information, a first transmitter for transmitting the image information from said reader, after compressing treatment, to an outside apparatus, a second transmitter for transmitting the image information from said reader without compressing treatment to an outside apparatus, and selecter for selecting either said first or second transmitters according to the destination of said image information.Type: GrantFiled: June 17, 1998Date of Patent: May 21, 2002Inventors: Katsuichi Shimizu, Tadashi Yoshida, Shinobu Arimoto, Katsuyoshi Maeshima, Nao Nagashima, Asao Watanabe
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Publication number: 20020054356Abstract: Predetermined additional information is superposed as a dot pattern on image information read by an image scanner, and the image information superposed with the additional information is modulated. The modulated information is demodulated and recorded on a recording medium to perform a series of operations, i.e., to simultaneously satisfy both pattern addition and modulation/demodulation.Type: ApplicationFiled: November 27, 2001Publication date: May 9, 2002Inventors: Mitsuru Kurita, Katsuyoshi Maeshima, Masahiro Funada, Yasumichi Suzuki, Yoichi Takaragi, Akiko Kanno, Koichi Ishimoto
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Publication number: 20010043761Abstract: There is disclosed an image recording apparatus having reader for photoelectrically reading an original and generating image information, a first transmitter for transmitting the image information from said reader, after compressing treatment, to an outside apparatus, a second transmitter for transmitting the image information from said reader without compressing treatment to an outside apparatus, and selecter for selecting either said first or second transmitters according to the destination of said image information.Type: ApplicationFiled: June 17, 1998Publication date: November 22, 2001Inventors: KATSUICHI SHIMIZU, TADASHI YOSHIDA, SHINOBU ARIMOTO, KATSUYOSHI MAESHIMA, NAO NAGASHIMA, ASAO WATANABE
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Patent number: 6231155Abstract: 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: GrantFiled: August 24, 1998Date of Patent: May 15, 2001Assignee: Canon Kabushiki KaishaInventors: Yutaka Udagawa, Yoshiaki Takayanagi, Katsuyoshi Maeshima, Yasuhiro Numata, Takayuki Matsuo, Miyuki Matsubara
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Patent number: 6101263Abstract: There is disclosed an image recording apparatus having reader for photoelectrically reading an original and generating image information, a first transmitter for transmitting the image information from said reader, after compressing treatment, to an outside apparatus, a second transmitter for transmitting the image information from said reader without compressing treatment to an outside apparatus, and selecter for selecting either said first or second transmitters according to the destination of said image information.Type: GrantFiled: December 30, 1997Date of Patent: August 8, 2000Assignee: Canon Kabushiki KaishaInventors: Katsuichi Shimizu, Tadashi Yoshida, Shinobu Arimoto, Katsuyoshi Maeshima, Nao Nagashima, Asao Watanabe
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Patent number: 5956052Abstract: 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: GrantFiled: December 3, 1992Date of Patent: September 21, 1999Assignee: Canon Kabushiki KaishaInventors: Yutaka Udagawa, Yoshiaki Takayanagi, Katsuyoshi Maeshima, Yasuhiro Numata, Takayuki Matsuo, Miyuki Matsubara
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Patent number: 5872869Abstract: There is disclosed an image recording apparatus having reader for photoelectrically reading an original and generating image information, a first transmitter for transmitting the image information from said reader, after compressing treatment, to an outside apparatus, a second transmitter for transmitting the image information from said reader without compressing treatment to an outside apparatus, and selecter for selecting either said first or second transmitters according to the destination of said image information.Type: GrantFiled: April 19, 1995Date of Patent: February 16, 1999Assignee: Canon Kabushiki KaishaInventors: Katsuichi Shimizu, Tadashi Yoshida, Shinobu Arimoto, Katsuyoshi Maeshima, Nao Nagashima, Asao Watanabe
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Patent number: 5832112Abstract: A color image processing apparatus that prevents counterfeiting by detecting specific originals with high precision. Although general banknotes have graphic patterns drawn on uniform density portions, the tonality percepted by human eye is the mixture of the tonality of a graphic portion and the tonality of a uniform density portion. In consideration of the mixed tonality sensed by human eye, the apparatus smoothes a read image signal to generate mixed tonality for judgment, thus improves judgment precision. The total judgment of existence/absence of specific original is made by performing m judgments on m (m>n) judging conditions using the tonality data of pre-registered n (n: positive integer) specific originals.Type: GrantFiled: December 16, 1994Date of Patent: November 3, 1998Assignee: Canon Kabushiki KaishaInventors: Masahiro Funada, Katsuyoshi Maeshima, Masanori Yamada, Yasumichi Suzuki, Yoichi Takaragi, Takeshi Aoyagi, Koichi Ishimoto
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Patent number: 5475508Abstract: A color image reading apparatus includes a plurality of line sensors which have different color filters and each of which has a plurality of light receiving elements. One of the plurality of line sensors has an opening width larger than those of the remaining line sensors. The apparatus also includes a correcting unit such as an edge emphasis circuit for correcting image signals output from the line sensors so as to obtain identical resolutions of the image signals, and a processing unit such as a masking circuit for performing color processing of the image signals corrected by the correcting unit.Type: GrantFiled: August 15, 1994Date of Patent: December 12, 1995Assignee: Canon Kabushiki KaishaInventors: Katsuyoshi Maeshima, Atsushi Takeda, Shinobu Arimoto, Shizuo Hasegawa
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Patent number: 5438364Abstract: A color image reading apparatus includes a plurality of line sensors which have different color filters and each of which has a plurality of light receiving elements. One of the plurality of line sensors has an opening width larger than those of the remaining line sensors. The apparatus also includes a correcting unit such as an edge emphasis circuit for correcting image signals output from the line sensors so as to obtain identical resolutions of the image signals, and a processing unit such as a masking circuit for performing color processing of the image signals corrected by the correcting unit.Type: GrantFiled: August 17, 1994Date of Patent: August 1, 1995Assignee: Canon Kabushiki KaishaInventors: Katsuyoshi Maeshima, Atsushi Takeda, Shinobu Arimoto, Shizuo Hasegawa
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Patent number: 5396235Abstract: A numeral setting apparatus for setting numerals such as copy magnification, copy density, or the like includes an operating member such as up/down keys or a volume lever and a setting device to set numerals corresponding to a magnitude of force which is applied to the operating member. When a larger force is applied to the operating member, the setting device changes the numerals in larger increments than those in the case where a smaller force is applied.Type: GrantFiled: December 21, 1992Date of Patent: March 7, 1995Assignee: Canon Kabushiki KaishaInventors: Katsuyoshi Maeshima, Masayuki Ogusu
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Patent number: 5276533Abstract: This invention provides an image processing system comprising devices for producing image signals by scanning an original image, process units for generating video signals by processing the image signals, detector for detecting the coordinates of the original image and controller for storing the coordinate signals from the detecting means and for controlling the process units according to thus stored signals.Type: GrantFiled: February 5, 1992Date of Patent: January 4, 1994Assignee: Canon Kabushiki KaishaInventors: Katsuichi Shimizu, Katsuyoshi Maeshima, Nao Nagashima, Shinobu Arimoto, Yoshiyuki Suzuki
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Patent number: 5109434Abstract: There is disclosed an image recording apparatus having reader for photoelectrically reading an original and generating image information, a first transmitter for transmitting the image information from said reader, after compressing treatment, to an outside apparatus, a second transmitter for transmitting the image information from said reader without compressing treatment to an outside apparatus, and a selecter for selecting either said first or second transmitter according to the destination of said image information.Type: GrantFiled: March 7, 1989Date of Patent: April 28, 1992Assignee: Canon Kabushiki KaishaInventors: Katsuichi Shimizu, Tadashi Yoshida, Shinobu Arimoto, Katsuyoshi Maeshima, Nao Nagashima, Asao Watanabe
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Patent number: 5038225Abstract: An image reading apparatus such as facsimile or digital copying apparatus comprises: a lamp to illuminate an original; an image reading device such as CCD to read the original image line by line; a memory to store dark-output data (data output from a reading while the lamp is off) of the reading device by an amount of one line; and a correction circuit to correct the image data obtained by reading the image by the reading device every pixel on the basis of the data stored in the memory. A black level of the image data is corrected by the correction circuit and the memory stores the dark output data of the reading device before the image is read. The memory also stores the output data of the reading device when the lamp is off. With this apparatus, the unevenness of the output image signals which is caused due to a variation in dark currents obtained by photoelectrically reading the original image can be corrected by eliminating the unevennesses of the black and white levels of the CCD line sensor.Type: GrantFiled: April 3, 1987Date of Patent: August 6, 1991Assignee: Canon Kabushiki KaishaInventor: Katsuyoshi Maeshima
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Patent number: 5016116Abstract: A copying apparatus has a carriage for placing an original document, a scanner for scanning the image of said original document placed on said carriage, a memory for storing said original image scanned by said scanning means in a state of a group of pixels,copy mode input device for instructing image conversion for forming a copy image on a copy material in a relationship faithful to or different from the image of the original document placed on said carriage, first control for controlling the pixel data readout from said memory means in response to the input signal from said mode input means for effecting image conversion,second control for controlling the readout function of said first control means, in case the image converted by said first control means overflows from the appropriate copying area, for producing said image in determined position of the copy material, and image forming device for forming the image on the determined position of the copy material in response to the readout data thus controlleType: GrantFiled: August 19, 1987Date of Patent: May 14, 1991Assignee: Canon Kabushiki KaishaInventor: Katsuyoshi Maeshima
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Patent number: 5008712Abstract: This invention relates to a copying apparatus with variable magnification capability, wherein the reduced and enlarged copying operations are achieved by varying the speed of a photosensitive drum, while controlling an optical system. The size of a copying material is compared with the size of a reproduced image at a selected magnification, and the comparison is displayed. Also, the size of copy material and the selected magnification can be changed during an interrupt process, and the scanning stroke and timing for image formation are controlled differently for different magnifications. The size of a copying material is compared with the size of a reproduced image at a selected magnification, and the comparison is displayed. Also, the size of copy material and the selected magnification can be changed during an interrupt process, and the scanning stroke and timing for image formation are controlled differently for different magnifications.Type: GrantFiled: November 16, 1989Date of Patent: April 16, 1991Assignee: Canon Kabushiki KaishaInventors: Tsuneki Inuzuka, Katsuyoshi Maeshima, Masahiro Tomosada