Patents by Inventor Kiyoto Matsui

Kiyoto Matsui 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: 20130249312
    Abstract: A portable apparatus includes a case, a coil situated inside the case, a circuit disposed inside the case to receive power based on a first frequency via the coil and to perform communication based on a second frequency higher than the first frequency, and a magnetic shield having a first portion and a second portion stacked one over another in a direction perpendicular to the coil between the coil and an inside of the case, the second portion being closer to the coil than the first portion, wherein permeability of the first portion is higher than permeability of the second portion situated toward the coil with respect to the first frequency.
    Type: Application
    Filed: May 23, 2013
    Publication date: September 26, 2013
    Applicant: FUJITSU LIMITED
    Inventors: Akiyoshi Uchida, MASAKAZU TAGUCHI, SATOSHI SHIMOKAWA, Kiyoto Matsui, Hiroyasu KAWANO
  • Patent number: 8422097
    Abstract: Disclosed is an image processing method for processing an image obtained by reading a document plate on which at least one document is placed. The method includes a first detecting step of specifying a first rectangular region including all of objects included in the image to detect the coordinates of each vertex thereof, an identifying step of identifying on each object whether it is a document item, an eliminating step of eliminating the object which is not a document item from the image, a second detecting step of specifying a second rectangular region to detect the coordinates of each vertex thereof, the region including all of the objects after elimination and having a minimum area, a comparing step of comparing the coordinates of the vertices detected in the first and second detecting steps, and a determining step of determining a method of cropping the document based on the comparison result.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: April 16, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kiyoto Matsui
  • Patent number: 8390896
    Abstract: A method for image processing in which an image of a bound document such as a book placed face-down on a document positioning plate is read and processed is provided. The method includes reading the bound document through the document positioning plate, displaying the read image, the read image having at least one of a shadow portion of a bound portion and a shadow portion of an edge portion, inputting information about a direction attribute of a rectangular area of the shadow portion in the displayed image, determining the direction attribute based on the input information, and correcting a density of the rectangular area based on the determined direction attribute.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: March 5, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuyuki Oiwa, Kiyoto Matsui
  • Publication number: 20130005408
    Abstract: Cellular phones include a power reception resonance coil arranged inside a first outer surface side of a housing, a power extracting unit for extracting power of an induction current of the power reception resonance coil, a magnetic core that has one end arranged inside the first outer surface side and the other end arranged inside a second outer surface side of the housing, and penetrates into the power reception resonance coil, and a printed board that is arranged in a space between the first outer surface and the second outer surface and has an area where circuit elements are not arranged on a periphery of the core.
    Type: Application
    Filed: September 12, 2012
    Publication date: January 3, 2013
    Applicant: FUJITSU LIMITED
    Inventors: Kiyoto MATSUI, Masakazu TAGUCHI, Hiroyasu KAWANO, Satoshi SHIMOKAWA, Akiyoshi UCHIDA
  • Publication number: 20120300267
    Abstract: Disclosed is an image processing method for processing an image obtained by reading a document plate on which at least one document is placed. The method includes a first detecting step of specifying a first rectangular region including all of objects included in the image to detect the coordinates of each vertex thereof, an identifying step of identifying on each object whether it is a document item, an eliminating step of eliminating the object which is not a document item from the image, a second detecting step of specifying a second rectangular region to detect the coordinates of each vertex thereof, the region including all of the objects after elimination and having a minimum area, a comparing step of comparing the coordinates of the vertices detected in the first and second detecting steps, and a determining step of determining a method of cropping the document based on the comparison result.
    Type: Application
    Filed: August 9, 2012
    Publication date: November 29, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Kiyoto Matsui
  • Patent number: 8264751
    Abstract: Disclosed is an image processing method for processing an image obtained by reading a document plate on which at least one document is placed. The method includes a first detecting step of specifying a first rectangular region including all of objects included in the image to detect the coordinates of each vertex thereof, an identifying step of identifying on each object whether it is a document item, an eliminating step of eliminating the object which is not a document item from the image, a second detecting step of specifying a second rectangular region to detect the coordinates of each vertex thereof, the region including all of the objects after elimination and having a minimum area, a comparing step of comparing the coordinates of the vertices detected in the first and second detecting steps, and a determining step of determining a method of cropping the document based on the comparison result.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: September 11, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kiyoto Matsui
  • Publication number: 20120212069
    Abstract: A wireless power transmitting device includes a housing configured to have a feeding surface on which a power receiving device is to be placed; a power transmitting coil disposed inside the housing and configured to have a central axis that intersects with the feeding surface; and an alternating-current power supply configured to supply power to the power transmitting coil, wherein the feeding surface has raised and recessed portions in an area corresponding to a region inside an outer region of the power transmitting coil.
    Type: Application
    Filed: January 25, 2012
    Publication date: August 23, 2012
    Applicant: Fujitsu Limited
    Inventors: Hiroyasu KAWANO, Kiyoto Matsui, Masakazu Taguchi, Satoshi Shimokawa, Akiyoshi Uchida
  • Publication number: 20100103474
    Abstract: A method for image processing in which an image of a bound document such as a book placed face-down on a document positioning plate is read and processed is provided. The method includes reading the bound document through the document positioning plate, displaying the read image, the read image having at least one of a shadow portion of a bound portion and a shadow portion of an edge portion, inputting information about a direction attribute of a rectangular area of the shadow portion in the displayed image, determining the direction attribute based on the input information, and correcting a density of the rectangular area based on the determined direction attribute.
    Type: Application
    Filed: October 26, 2009
    Publication date: April 29, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yasuyuki Oiwa, Kiyoto Matsui
  • Publication number: 20100073821
    Abstract: A magnetic disk apparatus includes a magnetic disk, a spindle motor for rotation of the magnetic disk, and a slider formed with a magnetic head for information reading or writing with respect to the magnetic disk. The slider is arranged to float above the surface of the magnetic disk when the disk is rotating. The magnetic disk apparatus also includes a swing arm for supporting and moving the slider above the magnetic disk, and a ramp disposed adjacent to the outer circumference of the magnetic disk for holding the slider at a withdrawal position which is spaced away from the surface of the magnetic disk. For an information leakage prevention, a hitting mechanism is provided, which is arranged to hit the slider held at the withdrawal position.
    Type: Application
    Filed: July 14, 2009
    Publication date: March 25, 2010
    Applicant: FUJITSU LIMITED
    Inventor: Kiyoto Matsui
  • Patent number: 7633720
    Abstract: A disk drive includes a rotatable disk, a read/write head, a head actuator for moving the head, a suspension for connecting the head and the actuator, and a housing for accommodating the disk, the head, the actuator and the suspension. The suspension is provided with a tab, and the housing is provided with an engaging element to come into engagement with the tab. Upon application of an impact to the housing, the head is raised unduly away from the disk. The tab is caught by the engaging element, thereby preventing the head from falling to and colliding with the disk.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: December 15, 2009
    Assignee: Fujitsu Limited
    Inventor: Kiyoto Matsui
  • Publication number: 20090273818
    Abstract: Disclosed is an image processing method for processing an image obtained by reading a document plate on which at least one document is placed. The method includes a first detecting step of specifying a first rectangular region including all of objects included in the image to detect the coordinates of each vertex thereof, an identifying step of identifying on each object whether it is a document item, an eliminating step of eliminating the object which is not a document item from the image, a second detecting step of specifying a second rectangular region to detect the coordinates of each vertex thereof, the region including all of the objects after elimination and having a minimum area, a comparing step of comparing the coordinates of the vertices detected in the first and second detecting steps, and a determining step of determining a method of cropping the document based on the comparison result.
    Type: Application
    Filed: April 29, 2009
    Publication date: November 5, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Kiyoto Matsui
  • Patent number: 7475411
    Abstract: A cleaner (C1) for an magneto-optical disk device includes a cartridge (4), a disk (1), an adhesive sheet (2) stuck to the disk (1), a clamping disk (3), and a shutter (5). The clamping disk (3) is stored rotatable in the cartridge (4), and the disk (1) is fixed to the cartridge (4) at a position apart from the clamping disk (3). By this means, it becomes possible to safely clean an optical head (17). Also, dust can be prevented from scattering to the magneto-optical disk device (P1).
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: January 6, 2009
    Assignee: Fujitsu Limited
    Inventors: Kiyoto Matsui, Tohru Fujimaki
  • Publication number: 20070070551
    Abstract: A disk drive includes a rotatable disk, a read/write head, a head actuator for moving the head, a suspension for connecting the head and the actuator, and a housing for accommodating the disk, the head, the actuator and the suspension. The suspension is provided with a tab, and the housing is provided with an engaging element to come into engagement with the tab. Upon application of an impact to the housing, the head is raised unduly away from the disk. The tab is caught by the engaging element, thereby preventing the head from falling to and colliding with the disk.
    Type: Application
    Filed: August 31, 2006
    Publication date: March 29, 2007
    Inventor: Kiyoto Matsui
  • Publication number: 20050174693
    Abstract: A cleaner (C1) for an magneto-optical disk device includes a cartridge (4), a disk (1), an adhesive sheet (2) stuck to the disk (1), a clamping disk (3), and a shutter (5). The clamping disk (3) is stored rotatable in the cartridge (4), and the disk (1) is fixed to the cartridge (4) at a position apart from the clamping disk (3). By this means, it becomes possible to safely clean an optical head (17). Also, dust can be prevented from scattering to the magneto-optical disk device (P1).
    Type: Application
    Filed: April 13, 2005
    Publication date: August 11, 2005
    Applicant: FUJITSU LIMITED
    Inventors: Kiyoto Matsui, Tohru Fujimaki
  • Patent number: 6757221
    Abstract: An optical head includes a lens carrier movable at least radially of a magneto-optical disk in facing relation thereto. An object lens is mounted on the lens carrier to converge a laser beam for forming a laser spot on the disk. The object lens has an optical axis and includes a lens surface directed toward the disk. A patterned coil is formed on the lens surface at least in one layer and has a light-passing opening corresponding to the optical axis of the object lens. A light-pervious layer is formed on the lens surface for closing the light-passing opening of the coil.
    Type: Grant
    Filed: July 26, 2000
    Date of Patent: June 29, 2004
    Assignee: Fujitsu Limited
    Inventors: Kazushi Uno, Shingo Hamaguchi, Kyoko Tadaki, Kiyoto Matsui, Goro Kawasaki, Nobuyuki Kanto
  • Patent number: 5882557
    Abstract: A method of fabricating an ultrasonic coupler to a specified configuration such that the ultrasonic coupler is fabricated by freezing and defrosting an aqueous solution containing a polymer. A surface of the fabricated ultrasonic coupler is made to be smooth. The ultrasonic coupler is fabricated using an ultrasonic coupler fabricating die including members each made of silicone rubber which varies in compliance with the expansion and the contraction of the aqueous solution. To fabricate the ultrasonic coupler, the aqueous solution containing a polyvinyl alcohol (PVA) is poured into the die. Then, the die is subjected to the process of cooling to below the freezing point and the process of recovery to room temperature so as to progress a bridging of the PVA, thereby progressing a gelling of the aqueous solution.
    Type: Grant
    Filed: July 5, 1996
    Date of Patent: March 16, 1999
    Assignee: Fujitsu Limited
    Inventors: Kenichi Hayakawa, Kazuhiro Watanabe, Kiyoto Matsui, Shiro Takeda
  • Patent number: 5575291
    Abstract: An ultrasonic coupler to be arranged between an ultrasonic probe and a patient to be examined using an ultrasonic diagnostic apparatus is provided. A method of producing the ultrasonic coupler is also provided. The ultrasonic coupler is made of a gel material having no tackiness. According to the present invention, an ultrasonic coupler includes the gel material which contains polyvinyl alcohol in the range of 3 weight % to 6 weight %. The polyvinyl alcohol is at least 98.0 mole % in the degree of saponification, and the gel material has a hardness in the range of 0.5.times.10.sup.4 dyne/cm.sup.2 to 2.times.10.sup.4 dyne/cm.sup.2. A coupling member for holding the ultrasonic coupler in contact with the ultrasonic probe is fixed to the gel material. The method of producing the ultrasonic coupler includes a step of providing a mold having an interior chamber. A coupling member projects into the interior chamber, and has an attachment portion inserted into the mold.
    Type: Grant
    Filed: September 15, 1994
    Date of Patent: November 19, 1996
    Assignee: Fujitsu Ltd.
    Inventors: Kenichi Hayakawa, Kiyoto Matsui
  • Patent number: 5350964
    Abstract: The present invention realates to an ultrasonic transducer providing a plurality of arranged vibrators as the piezoelectric materials. The present invention easily provide the shading to the polarization in the elevation direction of the piezoelectric materials in order to narrow the beam transmitted from the transducer. For this purpose, a structure of the present invention provides for the polarization (V.sub.1, V.sub.2, V.sub.3) of piezoelectric material of arranged vibrators to be gradually reduced in mass like a staircase from the center of the arranged vibrators to both end portions in the direction orthogonally crossing the arrangment direction of a plurality of arranged vibrators.
    Type: Grant
    Filed: March 8, 1991
    Date of Patent: September 27, 1994
    Assignee: Fujitsu Limited
    Inventors: Yasushi Hara, Kazuhiro Watanabe, Hiroshi Ishikawa, Kiyoto Matsui, Kenji Kawabe, Takaki Shimura
  • Patent number: 5265614
    Abstract: An acoustic coupler, combined with an ultrasound probe, is made of a gel a part of which is hardened for providing holding means for holding the probe for lifting up the probe with the coupler and another part of which is used to form an acoustically transparent path between the probe and a surface of an object to be acoustically inspected. Poly vinyl alcohol (PVA) is a typical material for the gel, and the coupler is fabricated by molding a PVA solution by partially increasing concentration of PVA and/or a repeating frequency of refrigerating and thawing the PVA solution, compared with those for the transparent path, in a molding process of the coupler.
    Type: Grant
    Filed: October 12, 1989
    Date of Patent: November 30, 1993
    Assignee: Fujitsu Limited
    Inventors: Kenichi Hayakawa, Kenji Kawabe, Kazuhiro Watanabe, Kiyoto Matsui, Takaki Shimura, Shiro Takeda
  • Patent number: 5250869
    Abstract: The present invention relates to an ultrasonic transducer for controlling an ultrasonic beam with the vibrators arranged and particularly to an ultrasonic transducer having improved the ultrasonic beam characteristic in the short axis direction in order to realize a high image quality ultrasonic diagnostic apparatus. The present invention is aimed at improving the ultrasonic beam characteristic and therefore the present invention discloses an ultrasonic transducer for controlling ultrasonic beam using many vibrators arranged in the form of an array in which a composite piezoelectric element (1) is used as an electric-acoustic conversion element of the vibrator and the electrode (2) divided in the short axis direction orthogonally crossing the arrangement direction of many vibrators is also provided on the composite piezoelectric vibrator (1).
    Type: Grant
    Filed: September 26, 1991
    Date of Patent: October 5, 1993
    Assignee: Fujitsu Limited
    Inventors: Hiroshi Ishikawa, Kazuhiro Watanabe, Kiyoto Matsui, Yasushi Hara, Kenji Kawabe, Takaki Shimura