Patents by Inventor Yuuji Takayama
Yuuji Takayama 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: 10404889Abstract: A method of controlling a printing system includes displaying, in a mobile terminal, a setting region for inputting a print setting for print data, and a search region for inputting a search condition for image forming apparatus candidates, of a plurality of image forming apparatuses, for executing printing, and searching, in a management system, for one or more image forming apparatuses, out of the plurality of image forming apparatuses, in accordance with the search condition input in the search region of the screen, and displaying display content that associates information of the image forming apparatuses with charge information for when the print data is printed by the image forming apparatuses, respectively, on a screen that includes a selection region by which it is possible to select the printing target, out of the one or more image forming apparatuses found in the searching.Type: GrantFiled: April 16, 2015Date of Patent: September 3, 2019Assignee: Canon Kabushiki KaishaInventors: Takayuki Miyamoto, Kazuhiko Okazawa, Yuuji Takayama, Hikaru Uchidate, Munehito Kurata, Hiroshi Hagiwara, Masayuki Takao, Masaaki Nakamura, Katsuhiko Shinjo, Senju Sato
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Patent number: 10197942Abstract: An image-forming apparatus includes a light-irradiation unit configured to move a spot of laser light on a surface of a photosensitive member at a non-constant scanning velocity in a main scanning direction to form a latent image on the photosensitive member, an image data correcting unit configured to correct a length in the main scanning direction of image data by inserting one or more image data pieces into the image data, the number of the image data pieces increasing as the scanning velocity increases, and/or extracting one or more image data pieces from the image data, the number of the image data pieces increasing as the scanning velocity decreases, and a brightness correcting unit configured to correct a brightness of the laser light so that an emission brightness increases as the scanning velocity increases and/or the emission brightness decreases as the scanning velocity decreases.Type: GrantFiled: May 25, 2018Date of Patent: February 5, 2019Assignee: Canon Kabushiki KaishaInventors: Takashi Kawana, Kazuyuki Ishihara, Yuuji Takayama, Hikaru Uchidate, Yoshihiko Tanaka, Hiroyuki Fukuhara, Shuichi Kurokawa
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Publication number: 20180275557Abstract: An image-forming apparatus includes a light-irradiation unit configured to move a spot of laser light on a surface of a photosensitive member at a non-constant scanning velocity in a main scanning direction to form a latent image on the photosensitive member, an image data correcting unit configured to correct a length in the main scanning direction of image data by inserting one or more image data pieces into the image data, the number of the image data pieces increasing as the scanning velocity increases, and/or extracting one or more image data pieces from the image data, the number of the image data pieces increasing as the scanning velocity decreases, and a brightness correcting unit configured to correct a brightness of the laser light so that an emission brightness increases as the scanning velocity increases and/or the emission brightness decreases as the scanning velocity decreases.Type: ApplicationFiled: May 25, 2018Publication date: September 27, 2018Inventors: Takashi Kawana, Kazuyuki Ishihara, Yuuji Takayama, Hikaru Uchidate, Yoshihiko Tanaka, Hiroyuki Fukuhara, Shuichi Kurokawa
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Patent number: 10007208Abstract: An image-forming apparatus includes a light-irradiation unit configured to move a spot of laser light on a surface of a photosensitive member at a non-constant scanning velocity in a main scanning direction to form a latent image on the photosensitive member, an image data correcting unit configured to correct a length in the main scanning direction of image data by inserting one or more image data pieces into the image data, the number of the image data pieces increasing as the scanning velocity increases, and/or extracting one or more image data pieces from the image data, the number of the image data pieces increasing as the scanning velocity decreases, and a brightness correcting unit configured to correct a brightness of the laser light so that an emission brightness increases as the scanning velocity increases and/or the emission brightness decreases as the scanning velocity decreases.Type: GrantFiled: May 1, 2017Date of Patent: June 26, 2018Assignee: Canon Kabushiki KaishaInventors: Takashi Kawana, Kazuyuki Ishihara, Yuuji Takayama, Hikaru Uchidate, Yoshihiko Tanaka, Hiroyuki Fukuhara, Shuichi Kurokawa
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Patent number: 9818050Abstract: An image forming apparatus for forming an image on a recording material by a plurality of color materials, the apparatus includes: a determination unit configured to determine, based on converted data that are converted from image data corresponding to each image formed by the plurality of color materials, values each relating to an area of a respective color material caused to adhere to a recording material; and a detection unit configured to detect, based on the values each relating to the area of the respective color material that the determination unit determines, an overlapping of color materials.Type: GrantFiled: February 6, 2015Date of Patent: November 14, 2017Assignee: CANON KABUSHIKI KAISHAInventors: Hikaru Uchidate, Yuuji Takayama, Mahito Yoshioka, Masahide Hirai, Munehito Kurata
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Publication number: 20170235247Abstract: An image-forming apparatus includes a light-irradiation unit configured to move a spot of laser light on a surface of a photosensitive member at a non-constant scanning velocity in a main scanning direction to form a latent image on the photosensitive member, an image data correcting unit configured to correct a length in the main scanning direction of image data by inserting one or more image data pieces into the image data, the number of the image data pieces increasing as the scanning velocity increases, and/or extracting one or more image data pieces from the image data, the number of the image data pieces increasing as the scanning velocity decreases, and a brightness correcting unit configured to correct a brightness of the laser light so that an emission brightness increases as the scanning velocity increases and/or the emission brightness decreases as the scanning velocity decreases.Type: ApplicationFiled: May 1, 2017Publication date: August 17, 2017Inventors: Takashi Kawana, Kazuyuki Ishihara, Yuuji Takayama, Hikaru Uchidate, Yoshihiko Tanaka, Hiroyuki Fukuhara, Shuichi Kurokawa
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Patent number: 9710205Abstract: This invention provides an image forming apparatus which communicates with a plurality of cartridges without increasing its circuit dimension. To accomplish this, the apparatus includes a control circuit having an output terminal for outputting a clock signal and data signal used to generate a transmission signal to the cartridge, and an input terminal for receiving a transmission signal from the cartridge. The apparatus includes N connectors each having the first electrode which is connected to the first electrode surface of each cartridge, and the second electrode which is connected to the second electrode surface. The apparatus includes a 1-to-N first signal line for connecting the input terminal to the N first electrodes, and a 1-to-N second signal line for connecting the output terminal to the N second electrodes. The apparatus includes N switching units which are interposed between 1-to-N branch points and the second electrodes on the second signal line.Type: GrantFiled: September 29, 2014Date of Patent: July 18, 2017Assignee: Canon Kabushiki KaishaInventors: Kenichi Karino, Yuuji Takayama, Hiroyuki Watanabe
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Patent number: 9696651Abstract: An image-forming apparatus includes a light-irradiation unit configured to move a spot of laser light on a surface of a photosensitive member at a non-constant scanning velocity in a main scanning direction to form a latent image on the photosensitive member, an image data correcting unit configured to correct a length in the main scanning direction of image data by inserting one or more image data pieces into the image data, the number of the image data pieces increasing as the scanning velocity increases, and/or extracting one or more image data pieces from the image data, the number of the image data pieces increasing as the scanning velocity decreases, and a brightness correcting unit configured to correct a brightness of the laser light so that an emission brightness increases as the scanning velocity increases and/or the emission brightness decreases as the scanning velocity decreases.Type: GrantFiled: March 9, 2016Date of Patent: July 4, 2017Assignee: Canon Kabushiki KaishaInventors: Takashi Kawana, Kazuyuki Ishihara, Yuuji Takayama, Hikaru Uchidate, Yoshihiko Tanaka, Hiroyuki Fukuhara, Shuichi Kurokawa
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Publication number: 20170070642Abstract: A printing system and a method of controlling a printing system capable of making it easier for service providers that provide print services via a network to spread more easily are provided. Also, a printing system and a method of controlling a printing system by which a service user can use print services easily are provided.Type: ApplicationFiled: April 16, 2015Publication date: March 9, 2017Inventors: Takayuki Miyamoto, Kazuhiko Okazawa, Yuuji Takayama, Hikaru Uchidate, Munehito Kurata, Hiroshi Hagiwara, Masayuki Takao, Masaaki Nakamura, Katsuhiko Shinjo, Senju Sato
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Publication number: 20160187806Abstract: An image-forming apparatus includes a light-irradiation unit configured to move a spot of laser light on a surface of a photosensitive member at a non-constant scanning velocity in a main scanning direction to form a latent image on the photosensitive member, an image data correcting unit configured to correct a length in the main scanning direction of image data by inserting one or more image data pieces into the image data, the number of the image data pieces increasing as the scanning velocity increases, and/or extracting one or more image data pieces from the image data, the number of the image data pieces increasing as the scanning velocity decreases, and a brightness correcting unit configured to correct a brightness of the laser light so that an emission brightness increases as the scanning velocity increases and/or the emission brightness decreases as the scanning velocity decreases.Type: ApplicationFiled: March 9, 2016Publication date: June 30, 2016Inventors: Takashi Kawana, Kazuyuki Ishihara, Yuuji Takayama, Hikaru Uchidate, Yoshihiko Tanaka, Hiroyuki Fukuhara, Shuichi Kurokawa
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Patent number: 9319553Abstract: An image-forming apparatus includes a light-irradiation unit configured to move a spot of laser light on a surface of a photosensitive member at a non-constant scanning velocity in a main scanning direction to form a latent image on the photosensitive member, an image data correcting unit configured to correct a length in the main scanning direction of image data by inserting one or more image data pieces into the image data, the number of the image data pieces increasing as the scanning velocity increases, and/or extracting one or more image data pieces from the image data, the number of the image data pieces increasing as the scanning velocity decreases, and a brightness correcting unit configured to correct a brightness of the laser light so that an emission brightness increases as the scanning velocity increases and/or the emission brightness decreases as the scanning velocity decreases.Type: GrantFiled: June 1, 2015Date of Patent: April 19, 2016Assignee: Canon Kabushiki KaishaInventors: Takashi Kawana, Kazuyuki Ishihara, Yuuji Takayama, Hikaru Uchidate, Yoshihiko Tanaka, Hiroyuki Fukuhara, Shuichi Kurokawa
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Publication number: 20150365554Abstract: An image-forming apparatus includes a light-irradiation unit configured to move a spot of laser light on a surface of a photosensitive member at a non-constant scanning velocity in a main scanning direction to form a latent image on the photosensitive member, an image data correcting unit configured to correct a length in the main scanning direction of image data by inserting one or more image data pieces into the image data, the number of the image data pieces increasing as the scanning velocity increases, and/or extracting one or more image data pieces from the image data, the number of the image data pieces increasing as the scanning velocity decreases, and a brightness correcting unit configured to correct a brightness of the laser light so that an emission brightness increases as the scanning velocity increases and/or the emission brightness decreases as the scanning velocity decreases.Type: ApplicationFiled: June 1, 2015Publication date: December 17, 2015Inventors: Takashi Kawana, Kazuyuki Ishihara, Yuuji Takayama, Hikaru Uchidate, Yoshihiko Tanaka, Hiroyuki Fukuhara, Shuichi Kurokawa
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Publication number: 20150227822Abstract: An image forming apparatus for forming an image on a recording material by a plurality of color materials, the apparatus includes: a determination unit configured to determine, based on converted data that are converted from image data corresponding to each image formed by the plurality of color materials, values each relating to an area of a respective color material caused to adhere to a recording material; and a detection unit configured to detect, based on the values each relating to the area of the respective color material that the determination unit determines, an overlapping of color materials.Type: ApplicationFiled: February 6, 2015Publication date: August 13, 2015Inventors: Hikaru Uchidate, Yuuji Takayama, Mahito Yoshioka, Masahide Hirai, Munehito Kurata
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Patent number: 9075369Abstract: An apparatus includes an image formation unit including a photosensitive drum and a motor for driving the image formation unit. The apparatus acquires a frequency generator signal, which is phase information output from the motor as the motor rotates. In addition, the apparatus corrects unevenness of the density that may occur due to the rotation of the motor according to the acquired phase information.Type: GrantFiled: June 11, 2013Date of Patent: July 7, 2015Assignee: Canon Kabushiki KaishaInventors: Takayuki Fukutani, Yuuji Takayama, Tomoyuki Saiki, Tae Matsumoto, Yuichi Ogawa
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Patent number: 9019518Abstract: An image forming apparatus including: a conveyance path through which a recording material is conveyed to form an image on the recording material; a reading unit that reads a document conveyed to the conveyance path; and a control unit that controls an image forming unit to overwrite a document image with an image according to a result of the reading in which the document image on the document, which is conveyed to the conveyance path, is read by reading unit.Type: GrantFiled: May 7, 2013Date of Patent: April 28, 2015Assignee: Canon Kabushiki KaishaInventors: Yuuji Takayama, Tomoyuki Saiki, Go Araki, Hikaru Uchidate
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Publication number: 20150015907Abstract: This invention provides an image forming apparatus which communicates with a plurality of cartridges without increasing its circuit dimension. To accomplish this, the apparatus includes a control circuit having an output terminal for outputting a clock signal and data signal used to generate a transmission signal to the cartridge, and an input terminal for receiving a transmission signal from the cartridge. The apparatus includes N connectors each having the first electrode which is connected to the first electrode surface of each cartridge, and the second electrode which is connected to the second electrode surface. The apparatus includes a 1-to-N first signal line for connecting the input terminal to the N first electrodes, and a 1-to-N second signal line for connecting the output terminal to the N second electrodes. The apparatus includes N switching units which are interposed between 1-to-N branch points and the second electrodes on the second signal line.Type: ApplicationFiled: September 29, 2014Publication date: January 15, 2015Inventors: Kenichi Karino, Yuuji Takayama, Hiroyuki Watanabe
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Patent number: 8891981Abstract: An image forming apparatus executes banding correction at a level determined according to variation of the density characteristic of the image forming apparatus to achieve a high quality image. In the image forming apparatus, a banding correction unit acquires information about a cause of density variation that may occur in a sub scanning direction of a rotation member, which is used for forming a toner image on an image carrier based on input image information and sets, based on the acquired information, the level of the density correction, which is determined according to the density variation cause information.Type: GrantFiled: March 30, 2011Date of Patent: November 18, 2014Assignee: Canon Kabushiki KaishaInventors: Tae Matsumoto, Tomoyuki Saiki, Takayuki Fukutani, Yuuji Takayama, Yuichi Ogawa
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Patent number: 8845056Abstract: This invention provides an image forming apparatus which communicates with a plurality of cartridges without increasing its circuit dimension. To accomplish this, the apparatus includes a control circuit having an output terminal for outputting a clock signal and data signal used to generate a transmission signal to the cartridge, and an input terminal for receiving a transmission signal from the cartridge. The apparatus includes N connectors each having the first electrode which is connected to the first electrode surface of each cartridge, and the second electrode which is connected to the second electrode surface. The apparatus includes a 1-to-N first signal line for connecting the input terminal to the N first electrodes, and a 1-to-N second signal line for connecting the output terminal to the N second electrodes. The apparatus includes N switching units which are interposed between 1-to-N branch points and the second electrodes on the second signal line.Type: GrantFiled: June 28, 2012Date of Patent: September 30, 2014Assignee: Canon Kabushiki KaishaInventors: Kenichi Karino, Yuuji Takayama, Hiroyuki Watanabe
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Patent number: 8849134Abstract: The image forming apparatus includes a CPU that performs control to form an inspection image for determining whether or not banding is suppressed to be smaller than a predetermined threshold value; and a density sensor that detects an intensity of banding periodically occurring in a sub-scanning direction of the formed inspection image. If based the detected banding intensity, the CPU has determined that the banding is not suppressed to be smaller than the predetermined threshold value, the CPU performs control to not perform banding correction or performs control to re-set a relationship between a phase of a rotary member and correction information.Type: GrantFiled: May 27, 2011Date of Patent: September 30, 2014Assignee: Canon Kabushiki KaishaInventors: Yuichi Ogawa, Takayuki Fukutani, Yuuji Takayama, Tomoyuki Saiki, Tae Matsumoto
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Patent number: 8843037Abstract: An image forming apparatus corrects, for uneven density caused by uneven rotation of a rotation speed of a rotation member, and diffuses so as to reduce the uneven density, for a pixel of interest whose density exceeds the upper limit of the output density out of the pixels of the corrected image data, the excess of the density more than the upper limit to a plurality of peripheral pixels while maintaining the center of gravity of the density.Type: GrantFiled: January 20, 2012Date of Patent: September 23, 2014Assignee: Canon Kabushiki KaishaInventors: Yuichi Ogawa, Yuuji Takayama