Patents by Inventor Keisuke Iwasaki

Keisuke Iwasaki 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: 7830966
    Abstract: The object of the present invention is to provide an image encoding device and decoding device which allows the maximum compression rate to be achieved with a visually uniform level of picture quality. The present invention has a characteristic pixel extractor 0309 which encodes input images by small region unit in accordance with an irreversible compression method, decodes the encoded data which is created, and utilizes the input image and decoded image obtained after decoding to extract characteristic pixels, a characteristic distortion calculator 0311 which utilizes characteristic pixels to calculate characteristic distortion of the decoded image in relation to the input image, and an encoding parameter controller 0312 which controls parameter values determining the degree of data compression in line with the extent of characteristic distortion.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: November 9, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kensaku Kagechi, Hisashi Saiga, Keisuke Iwasaki
  • Publication number: 20100225618
    Abstract: A touch position detection device includes a light sensor-containing LCD which informs a user, in accordance with a result of analyzing an image captured by light sensors, that it is difficult to identify where a pointing body is located.
    Type: Application
    Filed: March 5, 2010
    Publication date: September 9, 2010
    Inventors: Daisuke YAMASHITA, Keisuke Iwasaki
  • Patent number: 7676401
    Abstract: A data distribution system includes a plurality of data sources each capable of transmitting a data item, and a data vending machine capable of receiving the data item from the plurality of data sources and selling the received data item to a user. The data vending machine includes a data selecting apparatus operated by a user to select a desired data item, a data source selecting apparatus connected to the data selecting apparatus for selecting, among the plurality of data sources, one that holds the data item selected by the data selecting apparatus, in accordance with a specific standard, a data receiving apparatus connected to the data source selecting apparatus for receiving selected data item from the data source selected by the data source selecting apparatus, and a data updating apparatus to which an external storage device is detachably mounted, for writing the data item received by the data receiving apparatus to the external storage device.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: March 9, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yuji Sawada, Hisashi Saiga, Masafumi Yamanoue, Keisuke Iwasaki, Yoshihiro Kitamura
  • Publication number: 20100035087
    Abstract: The present invention relates to ferromagnetic metal particles having an average major axis diameter (L) of 10 to 100 nm which satisfy a relationship between the average major axis diameter (L) and a particle SFD represented by the following formula: Particle SFD?0.0001 L2?0.0217 L+1.75; a process for producing the ferromagnetic metal particles; and a magnetic recording medium using the ferromagnetic metal particles.
    Type: Application
    Filed: August 5, 2009
    Publication date: February 11, 2010
    Applicant: TODA KOGYO CORPORATION
    Inventors: Hiroko Morii, Keisuke Iwasaki, Seiji Ishitani, Mineko Ohsugi, Shinji Horie, Toshiharu Harada, Takehiro Matsuo, Yosuke Yamamoto, Kazuyuki Hayashi
  • Publication number: 20090220823
    Abstract: The present invention relates to ferromagnetic metal particles having a bulk density (?a) of not more than 0.25 g/cm3, a process for producing the above ferromagnetic metal particles and a magnetic recording medium comprising a non-magnetic substrate; a non-magnetic undercoat layer formed on the non-magnetic substrate which comprises non-magnetic particles and a binder resin; and a magnetic recording layer formed on the non-magnetic undercoat layer which comprises magnetic particles and a binder resin, wherein the above ferromagnetic metal particles were used as the magnetic particles.
    Type: Application
    Filed: February 27, 2009
    Publication date: September 3, 2009
    Applicant: TODA KOGYO CORPORATION
    Inventors: Hiroko MORII, Seiji Ishitani, Keisuke Iwasaki, Hirofumi Nishikawa, Mineko Ohsugi, Toshiharu Harada, Takahiro Matsuo, Yosuke Yamamoto, Kazuyuki Hayashi
  • Publication number: 20090017384
    Abstract: The present invention relates to a process for producing a composite cathode active material for a non-aqueous electrolyte secondary cell which is subjected to surface treatment, comprising: previously mixing the cathode active material with a surface-treating component in the form of a metal compound containing one or more metal elements selected from the group consisting of the first transition series elements and the second transition series elements; and then coating the cathode active material with the surface-treating component using an apparatus capable of effecting a high-speed shearing action.
    Type: Application
    Filed: July 8, 2008
    Publication date: January 15, 2009
    Applicant: TODA KOGYO CORPORATION
    Inventors: Keisuke Iwasaki, Kazuyuki Hayashi
  • Publication number: 20070294775
    Abstract: A contents data creating device is configured by equipping a computer with a contents creating software. In this contents creating software, a license information file stores license information containing information describing the permitted range of input data or output data. A GUI manager module displays a choice of options indicating the range of input data or output data unpermitted with the license information, in the mode different from that of the choice of options indicating the range of input data or output data permitted. The GUI manager module performs a conversion using the range of the input data or the output data inputted from the outside, as a parameter.
    Type: Application
    Filed: October 14, 2005
    Publication date: December 20, 2007
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Hisashi Saiga, Keisuke Iwasaki
  • Patent number: 7283129
    Abstract: An electronic book display control device capable of solving the problem of a conventional page turning method of an electronic book device that pages are turned in accordance with a value predetermined by a speed controller and hence it is difficult to turn pages flexibly in accordance with the contents of the book and the characteristics of the user. The control device is provided with a CPU (1) which controls the whole device, an image data storage unit (2) in which the contents of the book are stored as image data, an image data control unit (3) which receives the image data and performs the required control, a display preparation image data memory unit (4) in which image data of the page being displayed and the page to be displayed next are stored, and a display unit (5) on which information concerning the image data and information concerning the operation of the electronic book are displayed.
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: October 16, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yuji Sawada, Yasuhisa Nakamura, Hisashi Saiga, Masafumi Yamanoue, Keisuke Iwasaki, Yoshihiro Kitamura
  • Patent number: 7283683
    Abstract: In an image processing device, in order to display an image on a display device having nonlinear gradation characteristics, first, a contrast estimation unit (37) estimates the contrast of the image represented by the image data (51) input from an image input device. Next, a luminance correction unit (38) subjects the pixel data constituting the image data (51) to a luminance conversion process on the basis of the estimated contrast and the gradation characteristics. Furthermore, the pixel data may sometimes be subjected to a sharpening process. The level of the sharpening performed for one or a plurality of character regions in the image represented by the image data (51) is higher than that for the pixel data of the pixels in remaining regions other than the character regions in the image. The image data (52) comprising the pixel data subjected to these processes is supplied to the display device. Therefore, the visibility of the image displayed on the display device can be improved.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: October 16, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Mitsuaki Nakamura, Keisuke Iwasaki
  • Patent number: 7246228
    Abstract: Reproduction means of a general-purpose computer (1) reproduces a digital content only when a device ID included in the digital content corresponds to a device ID of a device by which it is intended to reproduce the digital content. When the device ID of the general-purpose computer (1) is altered, a recovery program for recovering an original device ID is downloaded from a recovery program generation server (2), thereby the device ID is recovered. With this arrangement, it is possible to provide a communication system which is capable of recovering a device ID when, for instance, the device ID is altered on account of the reinstall of a program such as an OS or content player.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: July 17, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Katsuhiko Sato, Yuji Sawada, Keisuke Iwasaki, Kazuyuki Nako
  • Publication number: 20060221097
    Abstract: An image automatic display device for reading automatic operation data as one of pieces of input data has a display image data generation device and a display image data generation operation processing unit. The display image data generation device generates image data to be displayed on a display device on the basis of image data read out from an image input device. The display image data generation operation processing unit controls the display image data generation device by using user operation input data inputted through a viewer operation input device and the automatic operation data. The automatic operation data has a plurality of sets of values of various parameters used for generating an image to be displayed. A user performs an operation through the viewer operation input device, so that a desired set to be applied for image generation is designated in the automatic operation data.
    Type: Application
    Filed: June 1, 2006
    Publication date: October 5, 2006
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Kensaku Kagechi, Keisuke Iwasaki, Hisashi Saiga
  • Patent number: 7094814
    Abstract: A coloring composition for a color filter composed of composite particles having an average particle diameter of 0.00 1 to 1.0 ?m, and containing white inorganic particles, a glue coating layer formed on the surface of the white inorganic particle and an organic pigment coat formed on the glue. A dispersant, binder resin, monomer as a reactive diluent, a polymerization initiator and a solvent are also present. The colorant provides not only a sharp particle size distribution but also excellent light resistance.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: August 22, 2006
    Assignee: Toda Kogyo Corporation
    Inventors: Hiroko Morii, Keisuke Iwasaki, Kazuyuki Hayashi
  • Patent number: 7085379
    Abstract: An image compression apparatus capable of efficiently encoding an image without causing color deviation to the eye compresses luminance element image data and two types of chrominance element image data each consisting of a plurality of blocks.
    Type: Grant
    Filed: November 15, 2000
    Date of Patent: August 1, 2006
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kensaku Kagechi, Hisashi Saiga, Keisuke Iwasaki
  • Publication number: 20060165991
    Abstract: Composite particles of the present invention comprise white inorganic particles, a surface modifier coating layer formed on surface of the respective white inorganic particles, and a dye or lake coat adhered onto the surface of the respective surface-modifier-coated white inorganic particles. The composite particles of the present invention not only exhibit excellent color-developing property and tinting strength but also suppress bleeding.
    Type: Application
    Filed: January 20, 2006
    Publication date: July 27, 2006
    Applicant: TODA KOGYO CORPORATION
    Inventors: Hiroko Morii, Kazuyuki Hayashi, Keisuke Iwasaki
  • Publication number: 20060106677
    Abstract: A data distribution system includes a plurality of data sources each capable of transmitting a data item, and a data vending machine capable of receiving the data item from the plurality of data sources and selling the received data item to a user. The data vending machine includes a data selecting apparatus operated by a user to select a desired data item, a data source selecting apparatus connected to the data selecting apparatus for selecting, among the plurality of data sources, one that holds the data item selected by the data selecting apparatus, in accordance with a specific standard, a data receiving apparatus connected to the data source selecting apparatus for receiving selected data item from the data source selected by the data source selecting apparatus, and a data updating apparatus to which an external storage device is detachably mounted, for writing the data item received by the data receiving apparatus to the external storage device.
    Type: Application
    Filed: December 20, 2005
    Publication date: May 18, 2006
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yuji Sawada, Hisashi Saiga, Masafumi Yamanoue, Keisuke Iwasaki, Yoshihiro Kitamura
  • Patent number: 7031531
    Abstract: An image coding apparatus corresponding to a standard scheme of binary image compression and having the compression efficiency of a gray scale image improved includes: a bit plane generator (303) dividing unitary image data into a plurality of bit planes determined according to the number of bits forming each pixel, an image preprocessor (305) connected to the bit plane generator (303) to arrange bit data of the same position forming a plurality of bit planes in close proximity to combine into a single bit plane, and a data compressor (306) connected to the image preprocessor (305) to compress an image of the single bit plane.
    Type: Grant
    Filed: August 14, 2000
    Date of Patent: April 18, 2006
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hisashi Saiga, Keisuke Iwasaki, Kensaku Kagechi
  • Patent number: 7022752
    Abstract: Composite particles having an average particle diameter of 0.001 to 10.0 ?m, comprise: white inorganic particles as core particles; a gluing agent coating layer formed on surface of the white inorganic particle; and an organic pigment coat formed onto said gluing agent coating layer in an amount of from 1 to 500 parts by weight based on 100 parts by weight of the white inorganic particles. The composite particles are substantially free from desorption of an organic pigment from the surface thereof and contain no harmful element.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: April 4, 2006
    Assignee: Toda Kogyo Corporation
    Inventors: Kazuyuki Hayashi, Mineko Ohsugi, Keisuke Iwasaki, Hiroko Morii
  • Patent number: 7016420
    Abstract: The object of the present invention is to provide an image encoding device and decoding device which allows the maximum compression rate to be achieved with a visually uniform level of picture quality. The present invention has a characteristic pixel extractor 0309 which encodes input images by small region unit in accordance with an irreversible compression method, decodes the encoded data which is created, and utilises the input image and decoded image obtained after decoding to extract characteristic pixels, a characteristic distortion calculator 0311 which utilises characteristic pixels to calculate characteristic distortion of the decoded image in relation to the input image, and an encoding parameter controller 0312 which controls parameter values determining the degree of data compression in line with the extent of characteristic distortion.
    Type: Grant
    Filed: September 19, 2000
    Date of Patent: March 21, 2006
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kensaku Kagechi, Hisashi Saiga, Keisuke Iwasaki
  • Publication number: 20060023793
    Abstract: The present invention has a characteristic pixel extractor 0309 which encodes input images by small region unit in accordance with an irreversible compression method, decodes the encoded data which is created, and utilises the input image and decoded image obtained after decoding to extract characteristic pixels, a characteristic distortion calculator 0311 which utilises characteristic pixels to calculate characteristic distortion of the decoded image in relation to the input image, and an encoding parameter controller 0312 which controls parameter values determining the degree of data compression in line with the extent of characteristic distortion. The regions of picture quality of a visually uniform level thus obtained are all compressed using an image compression method with a high compression efficiency, thus allowing the maximum compression rate to be achieved.
    Type: Application
    Filed: September 26, 2005
    Publication date: February 2, 2006
    Inventors: Kensaku Kagechi, Hisashi Saiga, Keisuke Iwasaki
  • Patent number: 6972752
    Abstract: A display device capable of allowing a page to be turned to give a feeling as if a page is actually turned includes a memory for storing information, a display for displaying information, a page turn instruction unit for detecting that the unit itself is tilted to output a detection signal indicating the direction of the tilt, and a display control unit for receiving an instruction from the page turn instruction unit to read information of the next or previous page from the memory according to the direction of the tilt and display the read information on the display.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: December 6, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazuyuki Nako, Minako Kuwata, Keisuke Iwasaki, Shigeki Kuga