Patents by Inventor Takayuki Nabeshima

Takayuki Nabeshima 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: 7515298
    Abstract: An image processing apparatus reducing image noise caused at a device which has a stationary reading portion such as a CCD sensor and reads an image of a document by moving the document is structured as follows: the image processing apparatus determines whether full color image data read by the reading portion is out of a predetermined color space; it uses shift resisters to determine that the image data out of the predetermined color space continues in a sub scanning direction; and thus it detects a line-shaped dirt image caused by dirt or the like at the reading portion, and corrects the dirt image.
    Type: Grant
    Filed: February 10, 2004
    Date of Patent: April 7, 2009
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Hiroyuki Suzuki, Takayuki Nabeshima, Hideyuki Toriyama, Kazuhiro Ishiguro, Toru Maegawa
  • Patent number: 7440639
    Abstract: An image reading apparatus includes: three line sensors; a mover moving a platen at a rate relative to the three line sensors; an interline corrector synchronizing the three line sensors' outputs to be a pixel having read a single location on an original; NOR and AND devices comparing three data corresponding to a single location on the original to detect a noise pixel; a determiner depending on a color of a pixel neighboring a pixel to be processed selected from pixels arranged in the main scanning direction, to determine first data from which a noise pixel is initially detected; and a determiner invalidating a noise pixel identical in location in the main scanning direction to the pixel to be processed, that is included in a line input prior to a line including the pixel detected from the first data and that is detected from data other than the first data.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: October 21, 2008
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Kazuhiro Ishiguro, Masaaki Saka, Takayuki Nabeshima
  • Patent number: 7430342
    Abstract: In order to prevent the appearance of gaps in fine lines when image data undergoes resolution conversion, the image processing apparatus includes an image reading unit that inputs image data, a fine line detection unit 113 that detects fine lines from the image data, a resolution conversion unit 111 that converts the image data to a prescribed resolution, and a fine line restoration unit 114 that restores fine lines in the image data that has undergone resolution conversion.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: September 30, 2008
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Takayuki Nabeshima, Kazuhiro Ishiguro, Hideyuki Toriyama, Hiroyuki Suzuki, Toru Maegawa
  • Publication number: 20080184364
    Abstract: An image processing apparatus comprising: an input portion that inputs image data of a plurality of pages of document; a password detector that detects a password given to each of the pages; a password judger that judges from the detecting results drew by the password detector whether or not different passwords are detected from each of the pages; a correlation judger that judges about each of the pages if the password judger judges that different passwords are detected from each of the pages, whether or not the passwords are correlated to each other; and an output permitting portion that permits the image data of all the pages, which are the image data inputted by the input portion, to be outputted without requesting entry of all passwords, if it is judged about each of the pages that the passwords are correlated to each other, on the other hand, requests entry of a password about each of the pages if it is judged about at least one of the pages that the passwords are not correlated to each other, then permi
    Type: Application
    Filed: October 22, 2007
    Publication date: July 31, 2008
    Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventors: Kazuhiro Ishiguro, Takayuki Nabeshima, Hideyuki Toriyama, Hiroyuki Suzuki, Masaaki Saka
  • Publication number: 20080104685
    Abstract: An image processing apparatus, comprising: an input portion that inputs image data of a plurality of pages of document; a password detector that detects a password given to each of the pages; a password judger that judges from a detecting result drew by the password detector about each of the pages, whether or not a shared password issued for each page in common is detected in addition to an individual password uniquely issued for each page; an entry requester that requests entry of a shared password if it is judged by the password detector that a shared password is detected, and requests entry of an individual password about each of the pages if it is judged by the password detector that a shared password is not detected; and an output permitting portion that permits image data of all the pages each having a shared password, which is the image data inputted by the input portion, if the appropriate shared password is entered in response to the request for entry of a shared password, and permits image data of
    Type: Application
    Filed: October 22, 2007
    Publication date: May 1, 2008
    Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventors: Kazuhiro Ishiguro, Takayuki Nabeshima, Hideyuki Toriyama, Hiroyuki Suzuki, Masaaki Saka
  • Patent number: 7348994
    Abstract: A method of converting image data from L*a*b* color space into CMYK color space by using a three-dimensional direct mapping table employs only data of lattice points existing within the color space. 8-point interpolation is used when all the lattice points constituting a lattice component containing input data are included in the color space, while another interpolation processing (e.g. 4-point interpolation) is employed for a lattice component partially existing outside the color space by using only lattice point data within the color space. Enhancement of precision in color conversion is thus achieved.
    Type: Grant
    Filed: March 7, 2001
    Date of Patent: March 25, 2008
    Assignee: Minolta Co., Ltd.
    Inventor: Takayuki Nabeshima
  • Publication number: 20070097443
    Abstract: In order to enhance the quality of image after removing a noise from image data obtained by scanning an original document, an MFP is provided with a scanning portion to obtain the image data by scanning the original document, a noise detection processing portion to detect a noise from the obtained image data, a dot region detecting portion to detect a region of dots from the obtained image data, and a copy correction processing portion to substitute a noise region with a substitution region that is located in the vicinity of the noise region and that is of the same size as the noise region if a region in the vicinity of the noise region including the noise detected by the noise detection processing portion is included in the region of dots detected by the dot region detecting portion.
    Type: Application
    Filed: October 2, 2006
    Publication date: May 3, 2007
    Applicant: Konica Minolta Business Technologies, Inc.
    Inventors: Kazuhiro Ishiguro, Takayuki Nabeshima, Masaaki Saka
  • Publication number: 20060279756
    Abstract: An image processing apparatus is provided in which the frequency of undesired delay of the image output can be reduced. The image processing apparatus comprises an image processor for performing a process defined by a parameter on the image data of the received job, a decision portion for deciding a state of the image data of the received job, and a controller for setting a parameter in accordance with the state that is decided by the decision portion if an interval between the received job and the previously received job is longer than a predetermined time, and for setting the parameter that was used in the last job despite the state that is decided by the decision portion if the interval is not longer than the predetermined time.
    Type: Application
    Filed: August 22, 2006
    Publication date: December 14, 2006
    Applicant: MINOLTA CO., LTD.
    Inventors: Katsuaki Tajima, Takayuki Nabeshima, Toshio Tsuboi, Junji Nishigaki, Daisetsu Tohyama
  • Publication number: 20060203492
    Abstract: In order to provide a discharge lamp with reflector in which thermal deterioration is inhibited by the diffusing of the irradiated light that leaks from the glass end part of the sealed part to suppress the rise in temperature of the component parts of the projector arranged to the rear of the lamp, the following means are used: In the discharge lamp with reflector 1 pertaining to the this invention, which constitutes a discharge lamp with reflector 1 in which a light-emitting tube 2 is housed in the reflector 3 interior and a rear sealed end part 4 of the light-emitting tube 2 is exposed to the rear of the reflector 3, the rear sealed end part 4 of the light-emitting tube 2 is formed as a frosted part 6.
    Type: Application
    Filed: March 9, 2006
    Publication date: September 14, 2006
    Applicant: Patent-Treuhand-Gesellschaft fur Elektrische Gluhlampen mbH
    Inventors: Hideyuki Matsumoto, Takayuki Nabeshima
  • Publication number: 20060203496
    Abstract: In order to provide a discharge lamp with reflector in which there is little fear that clouding on the interior surface of the reflector will occur as a result of the flow of silicone adhesive on to the interior surface of the reflector, the following means sure used: In the discharge lamp with reflector pertaining to this invention, which constitutes a discharge lamp with reflector in which a light-emitting tube is housed in the reflector interior, and in which a protective glass, provided in such a way as to cover the front face open part of the abovementioned reflector, is fixed to the abovementioned reflector using a silicone adhesive, a recessed part for suppressing the flow of the abovementioned silicone adhesive into the abovementioned reflector interior is provided in the circumferential direction in the surface of the abovementioned reflector front face on which the abovementioned protective glass is affixed using said silicone adhesive.
    Type: Application
    Filed: March 9, 2006
    Publication date: September 14, 2006
    Applicant: Patent-Treuhand-Gesellschaft fur Elektrische Gluhlampen mbH
    Inventor: Takayuki Nabeshima
  • Patent number: 7106475
    Abstract: An image processing apparatus is provided in which the frequency of undesired delay of the image output can be reduced. The image processing apparatus comprises an image processor for performing a process defined by a parameter on the image data of the received job, a decision portion for deciding a state of the image data of the received job, and a controller for setting a parameter in accordance with the state that is decided by the decision portion if an interval between the received job and the previously received job is longer than a predetermined time, and for setting the parameter that was used in the last job despite the state that is decided by the decision portion if the interval is not longer than the predetermined time.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: September 12, 2006
    Assignee: Minolta Co., Ltd.
    Inventors: Katsuaki Tajima, Takayuki Nabeshima, Toshio Tsuboi, Junji Nishigaki, Daisetsu Tohyama
  • Patent number: 7099045
    Abstract: Disclosed are an image processing apparatus and an image processing method that can decrease image quality deterioration caused by unsuitable image correction processing performed on a pixel in a halftone-dot area due to a misjudgment of an image type, and an image forming apparatus that utilizes the image processing apparatus. A characteristic of a halftone-dot area is judged by, for example, counting the number of isolated pixels detected by an isolated pixel detection filter with a predetermined size. A parameter such as a threshold for the number of inner edge pixels for use in a judgment of an edge area of a character that is present on a halftone-dot area is switched (between thresholds 503 and 504), based on the characteristic of the halftone-dot area.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: August 29, 2006
    Assignee: Minolta Co., Ltd.
    Inventor: Takayuki Nabeshima
  • Patent number: 7092124
    Abstract: Disclosed are an image processing apparatus that can decrease image quality deterioration caused by misjudgment of a halftone-dot area when its resolution is beyond an appropriate range etc., in the case where judgment of a halftone-dot area is based on the number of isolated pixels present in a predetermined area, and an image forming apparatus that utilizes the image processing apparatus. A white isolated pixel detection unit 442 (and a black isolated pixel detection unit) includes a plurality of filters 4421 and 4422 that each can detect an isolated pixel in a halftone-dot of a different size. When output is made indicating that a target pixel is an isolated pixel detected by at least one of the filters, the target pixel is judged to be an isolated pixel.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: August 15, 2006
    Assignee: Minolta Co., Ltd.
    Inventors: Takayuki Nabeshima, Hiroyuki Suzuki, Terukazu Ishiguro
  • Publication number: 20060072169
    Abstract: An image reading apparatus includes: three line sensors; a mover moving a platen at a rate relative to the three line sensors; an interline corrector synchronizing the three line sensors' outputs to be a pixel having read a single location on an original; NOR and AND devices comparing three data corresponding to a single location on the original to detect a noise pixel; a determiner depending on a color of a pixel neighboring a pixel to be processed selected from pixels arranged in the main scanning direction, to determine first data from which a noise pixel is initially detected; and a determiner invalidating a noise pixel identical in location in the main scanning direction to the pixel to be processed, that is included in a line input prior to a line including the pixel detected from the first data and that is detected from data other than the first data.
    Type: Application
    Filed: December 23, 2004
    Publication date: April 6, 2006
    Applicant: Konica Minolta Business Technologies, Inc.
    Inventors: Kazuhiro Ishiguro, Masaaki Saka, Takayuki Nabeshima
  • Publication number: 20060066921
    Abstract: An image reading apparatus includes, with the purpose of detecting noise in an image due to dust on a platen, three line sensors, a platen between an original and the line sensors, a moving mechanism for moving the platen, a noise detection processor detecting noise pixels from multiple data output from the line sensors, an order determination unit determining the order in which the noise pixel is detected, based on the order in which the line sensors are arranged and the direction in which the platen is moved, and a noise length calculator predicting the noise length in the sub scanning direction based on the number of noise pixels successive in the main scanning direction, the original transport rate, the platen moving rate, and the distance between the line sensors.
    Type: Application
    Filed: December 27, 2004
    Publication date: March 30, 2006
    Applicant: Konica Minolta Business Technologies, Inc.
    Inventors: Masaaki Saka, Kazuhiro Ishiguro, Takayuki Nabeshima
  • Publication number: 20060066919
    Abstract: An image reading apparatus includes: three line sensors having filters, respectively, different in spectral sensitivity, and arranged in a subscanning direction with a distance therebetween to scan an original in the subscanning direction; a platen arranged between the original and the three line sensors; a mover moving the platen at a rate relative to the three line sensors, the rate being different from that of the original relative to the three line sensors; a noise pixel detection processor detecting a noise pixel from each of the three data output from the three line sensors; a color detector detecting a color of each noise pixel from the three data; and a determiner validating a result of detection by the noise pixel detection processor when a color of the noise pixel and that of a pixel neighboring the noise pixel form a predetermined combination.
    Type: Application
    Filed: December 23, 2004
    Publication date: March 30, 2006
    Applicant: Konica Minolta Business Technologies, Inc.
    Inventors: Masaaki Saka, Kazuhiro Ishiguro, Takayuki Nabeshima
  • Publication number: 20060066920
    Abstract: An image reading apparatus includes, with the purpose of accurately correcting noise in an image due to dust on a platen, three line sensors spaced from each other in a sub scanning direction to scan an original in the sub scanning direction, a platen between the original and the three line sensors, a moving mechanism for moving the platen, a noise detection processor detecting a noise pixel from each of multiple data output from the three line sensors, a second pixel extractor extracting a second pixel present in first data for correcting the noise pixel, based on a value of a first pixel present in second data different from the first data and corresponding to the same location on the original as the noise pixel, and a corrector correcting the noise pixel based on the extracted second pixel.
    Type: Application
    Filed: December 27, 2004
    Publication date: March 30, 2006
    Applicant: Konica Minolta Holdings, Inc.
    Inventors: Masaaki Saka, Kazuhiro Ishiguro, Takayuki Nabeshima
  • Publication number: 20060066918
    Abstract: An image reading apparatus includes: three line sensors mutually spaced in a sub scanning direction; a platen arranged between the original and the three line sensors; a mover moving the platen relative to the three line sensors at a rate relative to the three line sensors, the rate being different from that of the original relative to the three line sensors; a lightness difference detector extracting a feature pixel having a predetermined feature from each of three data output from the three line sensors; and NOR and AND devices comparing a plurality of data corresponding to a single location on the original to detect the feature pixel extracted from one of the plurality of data, as a noise pixel if the feature pixel is not a feature pixel for the other data and also has at least a predetermined value in saturation.
    Type: Application
    Filed: December 23, 2004
    Publication date: March 30, 2006
    Applicant: Konica Minolta Business Technologies, Inc.
    Inventors: Kazuhiro Ishiguro, Masaaki Saka, Takayuki Nabeshima
  • Publication number: 20060066915
    Abstract: An image reading apparatus includes, with the purpose of accurately correcting noise in an image due to dust on a platen, three line sensors spaced from each other in a sub scanning direction to scan an original in the sub scanning direction, a platen between the original and the three line sensors, a moving mechanism for moving the platen, a noise detection processor detecting a noise pixels from each of multiple data output from the three line sensors, a selector selecting one of a plurality of search ranges defined with reference to the noise pixel, and a corrector extracting a reference pixel for correcting the noise pixel from the selected search range to correct the noise pixel based on the value of the extracted reference pixel.
    Type: Application
    Filed: December 27, 2004
    Publication date: March 30, 2006
    Applicant: Konica Minolta Business Technologies, Inc.
    Inventors: Masaaki Saka, Kazuhiro Ishiguro, Takayuki Nabeshima
  • Patent number: 6999197
    Abstract: Black edge identification may be accurately performed using hue information or its equivalent in addition to the brightness information and saturation information used in the conventional method. The device that identifies black edges obtains the brightness information, saturation information and hue information regarding the edges to determine, based on the brightness information and the saturation information, whether or not the edges are black edges, and to determine, based on the hue information, whether or not the edges are pseudo-black edges. Where the edges are identified as black edges and not as pseudo-black edges, it is determined that the edges are black edges.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: February 14, 2006
    Assignee: Minolta Co., Ltd.
    Inventor: Takayuki Nabeshima