Patents by Inventor Kyoji Sekiguchi

Kyoji Sekiguchi 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: 8939581
    Abstract: An ophthalmologic photographing apparatus includes an optical system, a pedestal, an auxiliary lens configured to be able to be inserted into and retracted from the optical system, a focusing lens, a focusing lens driving unit configured to move the focusing lens along an optical axis, a pedestal position detection unit configured to detect that the pedestal is away from the subject's eye by a predetermined distance, an auxiliary lens insertion detection unit configured to detect that the auxiliary lens is inserted into the optical system, a storage unit configured to store a position of the focusing lens, and a control unit configured to cause the focusing lens driving unit to move the focusing lens to a predetermined position stored in the storage unit based on outputs from the pedestal position detection unit and the auxiliary lens insertion detection unit.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: January 27, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Motoya Takai, Kyoji Sekiguchi, Hajime Nakajima
  • Patent number: 8752962
    Abstract: When the fundus camera is positioned on the same side as the subject's eye relative to an appropriate position (front-focus state), the positioning index light source turned on in blue produces most-focused positioning index images. The positioning index light sources become more blurred in order of green and red. When the camera is positioned on the opposite side of the subject's eye relative to the appropriate position (rear-focus state), the positioning index light source turned on in red produces most-focused images. The positioning index light sources become more blurred in order of green and blue. Based on a degree of the blur of the individual positioning index images in red, green, and blue reflected by the cornea of the subject's eye, the calculation unit calculates whether to move the camera body closer to or farther away from the subject's eye and allows the display unit to display the information.
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: June 17, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shigeaki Ono, Masao Shikaumi, Kyoji Sekiguchi, Koji Uchida
  • Patent number: 8609352
    Abstract: The invention intends to find out an in-vitro bioassay system capable of ensuring qualities of yokukansan to a higher degree, and provides a bioassay method for yokukansan, comprising competitively reacting labeled ligand and a test sample containing yokukansan with cells or cell membranes expressing serotonin 1A receptors, and measuring binding activity of yokukansan from the amount of the labeled ligand bound, and a bioassay method for yokukansan, comprising reacting labeled GTP and a test sample containing yokukansan with cells or cell membranes expressing serotonin 1A receptors, and measuring receptor-agonist activity of yokukansan from the amount of the labeled GTP bound.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: December 17, 2013
    Assignee: Tsumura & Co.
    Inventors: Yasushi Ikarashi, Kyoji Sekiguchi, Kiyoshi Terawaki, Takuji Yamaguchi
  • Patent number: 8545019
    Abstract: A fundus camera that obtains focus evaluation values by scanning, in which a focusing lens moves a predetermined distance according to a photographing mode before the focusing lens starts scanning for obtaining focus evaluation values.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: October 1, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kyoji Sekiguchi, Motoya Takai, Toshifumi Masaki
  • Publication number: 20120236261
    Abstract: A fundus camera that obtains focus evaluation values by scanning, in which a focusing lens moves a predetermined distance according to a photographing mode before the focusing lens starts scanning for obtaining focus evaluation values.
    Type: Application
    Filed: May 29, 2012
    Publication date: September 20, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kyoji Sekiguchi, Motoya Takai, Toshifumi Masaki
  • Publication number: 20120169996
    Abstract: An ophthalmologic photographing apparatus includes an optical system, a pedestal, an auxiliary lens configured to be able to be inserted into and retracted from the optical system, a focusing lens, a focusing lens driving unit configured to move the focusing lens along an optical axis, a pedestal position detection unit configured to detect that the pedestal is away from the subject's eye by a predetermined distance, an auxiliary lens insertion detection unit configured to detect that the auxiliary lens is inserted into the optical system, a storage unit configured to store a position of the focusing lens, and a control unit configured to cause the focusing lens driving unit to move the focusing lens to a predetermined position stored in the storage unit based on outputs from the pedestal position detection unit and the auxiliary lens insertion detection unit.
    Type: Application
    Filed: March 13, 2012
    Publication date: July 5, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Motoya Takai, Kyoji Sekiguchi, Hajime Nakajima
  • Patent number: 8205990
    Abstract: A fundus camera that obtains focus evaluation values by scanning, in which a focusing lens moves a predetermined distance according to a photographing mode before the focusing lens starts scanning for obtaining focus evaluation values.
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: June 26, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kyoji Sekiguchi, Motoya Takai, Toshifumi Masaki
  • Patent number: 8157377
    Abstract: An ophthalmologic photographing apparatus includes an optical system, a pedestal, an auxiliary lens configured to be able to be inserted into and retracted from the optical system, a focusing lens, a focusing lens driving unit configured to move the focusing lens along an optical axis, a pedestal position detection unit configured to detect that the pedestal is away from the subject's eye by a predetermined distance, an auxiliary lens insertion detection unit configured to detect that the auxiliary lens is inserted into the optical system, a storage unit configured to store a position of the focusing lens, and a control unit configured to cause the focusing lens driving unit to move the focusing lens to a predetermined position stored in the storage unit based on outputs from the pedestal position detection unit and the auxiliary lens insertion detection unit.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: April 17, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Motoya Takai, Kyoji Sekiguchi, Hajime Nakajima
  • Patent number: 8007104
    Abstract: A fundus camera includes an observation photographing unit having a focusing lens to perform focusing of an imaging unit on a fundus of a subject's eye, a lens driving unit configured to drive the focusing lens in an optical axis direction, and a focusing control unit configured to calculate a focusing evaluation value based on image information of a predetermined area of a fundus image captured by the observation photographing unit, and drive the focusing lens based on the focusing evaluation value, thereby performing focusing, wherein the focusing control unit moves the focusing lens from a previous photographing position of the focusing lens by a predetermined moving amount, and then performs the focusing.
    Type: Grant
    Filed: May 5, 2010
    Date of Patent: August 30, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kyoji Sekiguchi, Shigeaki Ono, Masao Shikaumi, Motoya Takai, Toshifumi Masaki
  • Publication number: 20110051090
    Abstract: An ophthalmologic photographing apparatus includes an optical system, a pedestal, an auxiliary lens configured to be able to be inserted into and retracted from the optical system, a focusing lens, a focusing lens driving unit configured to move the focusing lens along an optical axis, a pedestal position detection unit configured to detect that the pedestal is away from the subject's eye by a predetermined distance, an auxiliary lens insertion detection unit configured to detect that the auxiliary lens is inserted into the optical system, a storage unit configured to store a position of the focusing lens, and a control unit configured to cause the focusing lens driving unit to move the focusing lens to a predetermined position stored in the storage unit based on outputs from the pedestal position detection unit and the auxiliary lens insertion detection unit.
    Type: Application
    Filed: August 26, 2010
    Publication date: March 3, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Motoya Takai, Kyoji Sekiguchi, Hajime Nakajima
  • Publication number: 20110007274
    Abstract: When the fundus camera is positioned on the same side as the subject's eye relative to an appropriate position (front-focus state), the positioning index light source turned on in blue produces most-focused positioning index images. The positioning index light sources become more blurred in order of green and red. When the camera is positioned on the opposite side of the subject's eye relative to the appropriate position (rear-focus state), the positioning index light source turned on in red produces most-focused images. The positioning index light sources become more blurred in order of green and blue. Based on a degree of the blur of the individual positioning index images in red, green, and blue reflected by the cornea of the subject's eye, the calculation unit calculates whether to move the camera body closer to or farther away from the subject's eye and allows the display unit to display the information.
    Type: Application
    Filed: July 6, 2010
    Publication date: January 13, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Shigeaki Ono, Masao Shikaumi, Kyoji Sekiguchi, Koji Uchida
  • Publication number: 20110007272
    Abstract: A fundus camera that obtains focus evaluation values by scanning, in which a focusing lens moves a predetermined distance according to a photographing mode before the focusing lens starts scanning for obtaining focus evaluation values.
    Type: Application
    Filed: July 6, 2010
    Publication date: January 13, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kyoji Sekiguchi, Motoya Takai, Toshifumi Masaki
  • Publication number: 20100313709
    Abstract: A method for manufacturing alloy powders based on titanium, zirconium and hafnium alloyed with the elements Ni, Cu, Ta, W, Re, Os, and Ir is described in which an oxide of Ti and Zr and Hf is mixed with a metal powder of the elements named and with a reducing agent, and wherein this mixture is heated in a furnace, optionally under a argonate atmosphere or, optionally under hydrogen atmosphere until the reducing reaction begins, the reaction product is leached and then washed and dried, wherein the oxide used has an average grain size of 0.5 to 20 ?m, a specific surface area according to BET of 0.5 20 m2/g and a minimum content of 94 wet.-%. An easy to produce powder, in particular in relation to the ignition point and burning time, is produced.
    Type: Application
    Filed: February 27, 2009
    Publication date: December 16, 2010
    Inventors: Yasushi Ikarashi, Kyoji Sekiguchi, Kiyoshi Terawaki, Takuji Yamaguchi
  • Publication number: 20100317028
    Abstract: The invention intends to find out an in-vitro bioassay system capable of ensuring qualities of yokukansan to a higher degree, and provides a bioassay method for yokukansan, comprising competitively reacting labeled ligand and a test sample containing yokukansan with cells or cell membranes expressing serotonin 1A receptors, and measuring binding activity of yokukansan from the amount of the labeled ligand bound, and a bioassay method for yokukansan, comprising reacting labeled GTP and a test sample containing yokukansan with cells or cell membranes expressing serotonin 1A receptors, and measuring receptor-agonist activity of yokukansan from the amount of the labeled GTP bound.
    Type: Application
    Filed: February 15, 2008
    Publication date: December 16, 2010
    Applicant: Tsumura & Co.
    Inventors: Yasushi Ikarashi, Kyoji Sekiguchi, Kiyoshi Terawaki, Takuji Yamaguchi
  • Publication number: 20100283970
    Abstract: A fundus camera includes an observation photographing unit having a focusing lens to perform focusing of an imaging unit on a fundus of a subject's eye, a lens driving unit configured to drive the focusing lens in an optical axis direction, and a focusing control unit configured to calculate a focusing evaluation value based on image information of a predetermined area of a fundus image captured by the observation photographing unit, and drive the focusing lens based on the focusing evaluation value, thereby performing focusing, wherein the focusing control unit moves the focusing lens from a previous photographing position of the focusing lens by a predetermined moving amount, and then performs the focusing.
    Type: Application
    Filed: May 5, 2010
    Publication date: November 11, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kyoji Sekiguchi, Shigeaki Ono, Masao Shikaumi, Motoya Takai, Toshifumi Masaki
  • Patent number: 7445337
    Abstract: An area having a diameter in which a peripheral area of an eye fundus image is covered with a mask is displayed on a monitor. When a region which may be abnormal is found in the vicinity of a boundary between the mask and the eye fundus image during image viewing, the display area enlarging means is operated. Then, an aperture area of the mask is enlarged to expand a display area of the eye fundus image, so the eye fundus image including some flare is displayed on a wide area. Therefore, an abnormal state of the region can be recognized.
    Type: Grant
    Filed: September 28, 2005
    Date of Patent: November 4, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kyoji Sekiguchi
  • Patent number: 7438413
    Abstract: In a case of right and left eye fundus image sensing in a mass health examination, the alignment of an anterior segment of an eye to be examined is performed first (S101). When the alignment of the anterior segment of eye is completed, image sensing light intensity is set (S102). The alignment of a fundus segment of the eye to be examined is performed (S103). Furthermore, an image of the fundus of the eye to be examined is sensed by a sensing switch being pushed after the completion of focus adjustment (S104). Next, an optical base unit is moved so that the image sensing of another eye can be performed (S105). A left or right eye detection unit detects that an eye for image sensing is changed with the move of the optical base unit. When the eye for image sensing is changed, an image sensing light intensity setting unit sets image sensing light intensity by adding a predetermined amount, or changing the sets image sensing light intensity according to a diameter of a pupil (S106).
    Type: Grant
    Filed: September 28, 2005
    Date of Patent: October 21, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenichi Kashiwagi, Kyoji Sekiguchi
  • Patent number: 7333636
    Abstract: To determine the presence or absence of an aperture mask in a funduscopic image output by a fundus camera, and to combine the funduscopic image with an aperture mask image formed in an aperture mask-forming section so as to correspond to a determination result. When an aperture mask determination section 34 determines the absence of the aperture mask image in the funduscopic image and the necessity of the addition, the aperture mask-forming section 35 forms a necessary mask, and an aperture mask combine section 36 combines the funduscopic image with the aperture mask image.
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: February 19, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kyoji Sekiguchi
  • Publication number: 20060077344
    Abstract: In a case of right and left eye fundus image sensing in a mass health examination, the alignment of an anterior segment of an eye to be examined is performed first (S101). When the alignment of the anterior segment of eye is completed, image sensing light intensity is set (S102). The alignment of a fundus segment of the eye to be examined is performed (S103). Furthermore, an image of the fundus of the eye to be examined is sensed by a sensing switch being pushed after the completion of focus adjustment (S104). Next, an optical base unit is moved so that the image sensing of another eye can be performed (S105). A left or right eye detection unit detects that an eye for image sensing is changed with the move of the optical base unit. When the eye for image sensing is changed, an image sensing light intensity setting unit sets image sensing light intensity by adding a predetermined amount, or changing the sets image sensing light intensity according to a diameter of a pupil (S106).
    Type: Application
    Filed: September 28, 2005
    Publication date: April 13, 2006
    Inventors: Kenichi Kashiwagi, Kyoji Sekiguchi
  • Publication number: 20060077343
    Abstract: An area having a diameter in which a peripheral area of an eye fundus image is covered with a mask is displayed on a monitor. When a region which may be abnormal is found in the vicinity of a boundary between the mask and the eye fundus image during image viewing, the display area enlarging means is operated. Then, an aperture area of the mask is enlarged to expand a display area of the eye fundus image, so the eye fundus image including some flare is displayed on a wide area. Therefore, an abnormal state of the region can be recognized.
    Type: Application
    Filed: September 28, 2005
    Publication date: April 13, 2006
    Inventor: Kyoji Sekiguchi