Patents by Inventor Takuya Kawamura

Takuya Kawamura 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).

  • Publication number: 20110157606
    Abstract: There are provided an image printing system and an image processing method which can perform printing control for a unit pixel without losing a positional relationship between a dot arrangement pattern and a mask pattern even when index processing and mask processing are executed independently from each other. For this purpose, an index start position command (901) is transmitted, and the mask pattern is arranged such that the top of the mask pattern matches a top raster of a received index processing start position when the mask processing is executed. Thereby, it becomes possible to securely execute the printing control for a unit pixel without losing the positional relationship between the dot arrangement pattern and the mask pattern which are generated in association with each other.
    Type: Application
    Filed: December 20, 2010
    Publication date: June 30, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Takuya Kawamura
  • Publication number: 20110157628
    Abstract: An image forming apparatus of the present invention includes a first circuit which creates image data on the basis of print job data, a second circuit which causes a printing unit to print an image on the basis of the image data created by the first circuit and is different from the first circuit, and a storage capable of being accessed by the first circuit and the second circuit, respectively. Additionally, when data is transferred in the first circuit and the second circuit, one circuit writes the data in the storage, and the other circuit reads out the data to transfer the data, thereby executing printing of an image.
    Type: Application
    Filed: November 12, 2010
    Publication date: June 30, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Takuya Kawamura
  • Publication number: 20110038046
    Abstract: Provided are a non-reciprocal unit used for a polarization dependent type optical isolator and a polarization dependent type optical isolator that are simple in structure, can prevent damages due to light and heat and can obtain a high extinction ratio. In a polarization dependent type optical isolator, an input side lens (first lens) (5), a first birefringence unit (7), a Faraday rotator (9), a second birefringence unit (11) and an output side lens (second lens) (15) are arranged from the input side to the output side. The polarization dependent type optical isolator (1) is connected with optical fibers (3, 17) on the input and output sides, respectively, wherein a wedge angle (?1) of the first birefringence unit (7) is different from a wedge angle (?2) of the second birefringence unit (11).
    Type: Application
    Filed: August 6, 2009
    Publication date: February 17, 2011
    Applicant: SEIKOH GIKEN CO., LTD.
    Inventors: Takuya Kawamura, Masayuki Kimura, Masayuki Togawa
  • Patent number: 7881369
    Abstract: In an image transmission apparatus an image data generator generates image data that represents an image. An updated image data generator generates updated image data that represents an updated image of an updated region of the image. A compressor compresses the updated image data. A transmitter stores the updated image data that is compressed by the compressor. An updated image data storage stores the updated image data. A transmission result storage stores transmission result data that includes quality information and time information, the quality information relating to an image quality, the time information indicating when the updated image data is generated. A transmission data selector selects the updated image data stored in the updated image data storage, and sets the image quality of the updated image data selected, according to the transmission result data stored in the transmission result storage.
    Type: Grant
    Filed: March 6, 2006
    Date of Patent: February 1, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shinya Murai, Hajime Yamaguchi, Toshio Shirakihara, Haruhiko Toyama, Takuya Kawamura
  • Patent number: 7813660
    Abstract: An image forming apparatus forms a toner image onto sheets at the first feeding interval on a photoconductor or intermediate transfer member and, if the temperature of a fixing unit falls outside a set temperature range, the sheet layout is changed to a feeding interval wider than the first feeding interval. Adjustment processing is performed based on the image forming condition so that the feeding interval is changed to a wider one in the feeding interval changing step during image formation and it is determined in the determination step to perform adjustment processing, toner patch images are formed in an area where no toner image is formed on the photoconductor or intermediate transfer member . The adjustment processing is performed based on reading toner patch images.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: October 12, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsumi Takahashi, Yuichiro Maeda, Yushi Oka, Kenji Kuroki, Yuzo Matsumoto, Kazunori Togashi, Takuya Kawamura
  • Patent number: 7702171
    Abstract: A screen data transmitting device for transmitting screen data to a screen display terminal through a network. A generation device generates a display image data. A storage device stores compression properties information associating a plurality of compression schemes with a plurality of classes of graphical user interface (GUI) components. A selection device selects one of the compression schemes with respect to a GUI component that is present in a region of the display image data. A compression device compresses the region of the display image data according to the selected compression scheme. Then, a transmission device transmits the screen data including the compressed display image data to the screen display terminal.
    Type: Grant
    Filed: March 27, 2006
    Date of Patent: April 20, 2010
    Assignee: Kabushiki Kasha Toshiba
    Inventors: Shinya Murai, Shogo Yamaguchi, Hajime Yamaguchi, Toshio Shirakihara, Haruhiko Toyama, Takuya Kawamura
  • Patent number: 7650110
    Abstract: There is disclosed a wireless communication apparatus which provides a plurality of images stored in a storage to an initiating wireless communication apparatus through wireless communications. A reception unit receives an image acquisition request transmitted from the initiating wireless communication apparatus. The request conforms to a camera control protocol for exchanging information relating to images. A selection unit selects, in response to the image acquisition request, one of the plurality of images stored in the storage. A transmission unit then transmits a response to the initiating wireless communication apparatus in accordance with the camera control protocol. Information relating to the one of the plurality of images that is selected by the selection unit is contained in the response.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: January 19, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Takuya Kawamura
  • Publication number: 20090225153
    Abstract: A communication controller receives first ID and second ID indicative of two information synthesizers bilaterally connected to each other from each of the information synthesizers; stores therein the first ID and the second ID associated with each other; and assigns a one of the terminal devices to the first information synthesizer and other of the terminal devices to the second information synthesizer, when both of the first information and the second information from the first information synthesizer match those from the second information synthesizer.
    Type: Application
    Filed: March 16, 2007
    Publication date: September 10, 2009
    Inventors: Naohisa Shibuya, Takuya Kawamura, Shingo Tanaka, Nobuhiko Sugasawa
  • Publication number: 20090222593
    Abstract: There is provided with a server device which outputs a result of computation processing to an output device, including: a communication unit configured to receive a connection request from an input device; an output device manager configured to store an identifier of the output device; and an connection controller configured to acquire output capability information of the output device, configured to acquire input capability information of the input device, configured to generate secret information which can be input to the input device and can be output by the output device, on the basis of the input capability information and the output capability information, configured to transmit the secret information to the output device, and configured to generate a result of computation processing based on input information received from the input device for transmitting to the output device in a case of receiving the secret information from the input device.
    Type: Application
    Filed: March 28, 2006
    Publication date: September 3, 2009
    Inventors: Shinya Murai, Takuya Kawamura, Kotaro Ise, Keiichi Yamaguchi, Masataka Goto
  • Patent number: 7559031
    Abstract: There is provided with a video display apparatus comprising: a receiving unit configured to receive a composite video image generated from a plurality of video sources; a display unit configured to display the received composite video image; an area manager configured to store area information pieces; a position specification unit configured to specify a position on the composite video image; an area selection unit configured to select an area information piece from the area information pieces; an area display unit configured to provide information indicating the area represented by the selected area information piece to the display unit so as to superpose the information on the displayed composite video image; an area change unit configured to change the information; an area information update unit configured to update the selected area information piece; and a transmission unit configured to transmit an update control signal containing the area information piece after update.
    Type: Grant
    Filed: January 20, 2006
    Date of Patent: July 7, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takuya Kawamura, Naohisa Shibuya, Nobuhiko Sugasawa
  • Publication number: 20090116563
    Abstract: There is provided with a mixed video delivering apparatus, including: a video receiving unit receiving first to Nth encoded video data from first to Nth terminals; a decoding unit decoding the first to Nth encoded video data; a video mixing unit mixing first to Nth decoded video data to obtain mixed video data to be transmitted to a terminal “A” out of the first to Nth terminals; an encoding parameter storage storing first to Nth encoding parameters which are used for encoding the first to Nth videos by the first to Nth terminals; an encoding parameter selecting unit selecting an encoding parameter which is used by any one of terminals other than the terminal A; an encoding unit encoding the mixed video data with a selected encoding parameter to obtain encoded mixed video data; and a video transmitting unit transmitting the encoded mixed video data to the terminal A.
    Type: Application
    Filed: September 19, 2008
    Publication date: May 7, 2009
    Inventors: Takuya Kawamura, Naohisa Shibuya, Nobuhiko Sugasawa
  • Publication number: 20090052913
    Abstract: An image forming apparatus includes a first sheet discharge unit, a second sheet discharge unit, a switching unit configured to cause a sheet discharge destination to switch between the first sheet discharge unit and the second sheet discharge unit, a memory unit configured to store information about drying time of a print medium, a timer unit configured to determine elapse of the drying time of the printed print medium based on the information stored in the memory unit, and a control unit configured to control the switching unit to set the first sheet discharge unit to be the sheet discharge destination based on a determination of the timer unit that a drying time of a print medium discharged to the first sheet discharge unit has elapsed.
    Type: Application
    Filed: August 19, 2008
    Publication date: February 26, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takuya Kawamura, Takashi Tsuzuki, Nobuyoshi Tanaka, Yoshiyuki Hosokawa, Hirofumi Narita
  • Patent number: 7495683
    Abstract: An image forming apparatus which is capable of forming an excellent image while suppressing reduction in productivity to a minimum even when an abnormality occurs in detection of an HP mark on an intermediate transfer member. When there occurs abnormality in detection of any of HP marks, an alternate signal is generated in place of a signal associated with a mark the detection of which is determined to be abnormal, and image formation is carried out with reference to the time of normal HP mark detection and the alternate signal.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: February 24, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinichi Takata, Akihiko Sakai, Takuya Kawamura, Yuichiro Maeda
  • Patent number: 7471912
    Abstract: An image forming apparatus having a transfer device transferring a toner image from an intermediate transfer member to a sheet, a sheet feeder feeding the sheet to the transfer device, a sheet re-feeder, which reverses the front side and back side of the sheet to re-feed the sheet to the transfer device, and a controller, which controls the execution of a two-side copying mode, wherein when a feeding of the sheet from the sheet feeder is interrupted with a first toner image to be transferred to another sheet fed from the sheet re-feeder and a second toner image to be transferred to the sheet fed from the sheet feeder being on the intermediate transfer member, the controller controls the transfer device to perform a transfer of the first toner image and inhibit a transfer of the second toner image.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: December 30, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiko Sakai, Shinichi Takata, Takuya Kawamura, Yuichiro Maeda
  • Patent number: 7389084
    Abstract: An image forming system has a sheet deck assembly, an image forming apparatus, and a feeding buffering apparatus with plural feeding buffer trays for temporarily storing sheets of printing paper fed from plural printing paper decks of the sheet deck assembly. The feeding buffering apparatus feeds the temporarily stored sheets to the image forming apparatus.
    Type: Grant
    Filed: March 20, 2006
    Date of Patent: June 17, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoto Watanabe, Hitoshi Kato, Takahiro Watanabe, Keita Takahashi, Masahiro Serizawa, Ichiro Sasaki, Takuya Kawamura
  • Patent number: 7380780
    Abstract: A sheet supplying apparatus having a plurality of sheet decks for supplying sheets connected in series, and provided with a controller for controlling the feeding of the sheets of each sheet deck, wherein each sheet deck has a sheet stacking portion for supporting the sheets thereon, a sheet conveying path for guiding the sheets from an upstream side to a downstream side, and a joining conveying path joining the sheet conveying path for guiding the sheets from the sheet stacking portion to the sheet conveying path, wherein the sheet decks are connected in such a manner that the respective sheet conveying paths are connected thereto, and the controller judges the position of the sheet deck for supplying a sheet preceding by one the sheet supplied in predetermined order when the sheets are supplied in order from each sheet deck and controls so as to pre-feed the sheet in the predetermined order to the vicinity of the upstream side of a joining point between the sheet conveying path in the sheet deck for supplyi
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: June 3, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ichiro Sasaki, Takahiro Watanabe, Keita Takahashi, Naoto Watanabe, Takuya Kawamura, Masahiro Serizawa, Hitoshi Kato
  • Publication number: 20080075486
    Abstract: In an image forming apparatus which forms an image by transferring, onto sheets fed by a feeding unit at the first feeding interval, a toner image formed on a photoconductor or intermediate transfer member, if the temperature of a fixing unit which fixes an image transferred onto a sheet falls outside a set temperature range, the sheet layout is changed to a feeding interval wider than the first feeding interval. Whether to perform adjustment processing is determined based on determination of an image forming condition. If the feeding interval is changed to a wider one in the feeding interval changing step during image formation and it is determined in the determination step to perform adjustment processing, toner patch images are formed in an area where no toner image is formed on the photoconductor or intermediate transfer member. The adjustment processing is performed based on reading toner patch images.
    Type: Application
    Filed: September 21, 2007
    Publication date: March 27, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Katsumi Takahashi, Yuichiro Maeda, Yushi Oka, Kenji Kuroki, Yuzo Matsumoto, Kazunori Togashi, Takuya Kawamura
  • Publication number: 20080062252
    Abstract: There is provided with a video mixing method including: receiving first to third video data expressing first to third videos from first to third terminals; mixing the first to third video data to generate first to third mixed video data; transmitting the first to third mixed video data to the first to third terminals; receiving first to third voice data expressing first to third voices from the first to third terminals; mixing the first to third voice data to generate first to third mixed voice data; transmitting the first to third mixed voice data to the first to third terminals; and increasing a voice level of the second voice to be included in the first mixed voice and a voice level of the first voice to be included in the second mixed voice upon receiving video selection information indicating that the second video has been selected from the first terminal.
    Type: Application
    Filed: September 6, 2007
    Publication date: March 13, 2008
    Inventors: Takuya Kawamura, Naohisa Shibuya, Nobuhiko Sugasawa
  • Publication number: 20080065423
    Abstract: An image use history management system is provided, in which each time an image is used, the use is additionally written in use history information. At the time of generating an image, a modality generates use history information of the image. When the image is subjected to a process such as transmission, erasure, recording to an external recording medium, and erasure of patient information from the image, the modality and a server additionally write information corresponding to the process in the use history information and store the resultant information so as to be associated with the image.
    Type: Application
    Filed: September 6, 2007
    Publication date: March 13, 2008
    Inventors: Yoshihiro Oda, Takuya Kawamura
  • Publication number: 20080013968
    Abstract: In an image forming apparatus capable of automatically detecting an abnormality therein, thus interrupting the operation and executing a recovery operation after the abnormal state is released, a starting position of a recovery image formation desired by a user within an object page of recovery is inputted; an address of image data, corresponding to the recovery start position input by way of the input unit is determined; and an image data corresponding to the address of the recovery image data, determined by the address determining unit, is read, and the image formation is re-started after the release of the abnormality. According to the present invention, the mage forming apparatus can achieve a saving in consumables in the recovery operation and output a recovered image with a satisfactory appearance for the user.
    Type: Application
    Filed: July 5, 2007
    Publication date: January 17, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Takuya Kawamura