Patents by Inventor Osamu Nagatsuka

Osamu Nagatsuka 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: 10732397
    Abstract: A microscope system comprises a microscope body, an imaging unit connected to the microscope body and including an image sensor for capturing a microscopic image, and an XY stage configured to place a slide and move in an X direction and a Y direction. The microscope system changes an arrangement of the image sensor with respect to the microscope body so as to cause a direction defined by a pixel arrangement of the image sensor to align with one of the X direction and the Y direction of the XY stage.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: August 4, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Michiie Sakamoto, Akinori Hashiguchi, Shinobu Masuda, Tsuguhide Sakata, Osamu Nagatsuka, Koichiro Nishikawa
  • Patent number: 10725309
    Abstract: A microscope system includes a microscope body, an XY stage mounted on the microscope body and including a stage configured to place a slide as an observation target and move in an X-axis direction and a Y-axis direction perpendicular to each other, and an XY two-dimensional scale plate fixed to the stage. The XY two-dimensional scale plate is provided with a first mark that provides axis information in the X-axis direction throughout a movable range of the stage in the Y-axis direction and a second mark that provides axis information in the Y-axis direction throughout a movable range of the stage in the X-axis direction, which are used to recognize X- and Y-coordinates of the stage.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: July 28, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Michiie Sakamoto, Akinori Hashiguchi, Shinobu Masuda, Tsuguhide Sakata, Masahide Hasegawa, Masahiro Ando, Osamu Nagatsuka
  • Publication number: 20200159000
    Abstract: A microscope system comprises a microscope body, a stage configured to place a slide as an observation target and move in an X direction and a Y direction. The microscope system changes an arrangement of the placed slide with respect to the stage so as to cause a direction indicated by a mark provided on the slide placed on the stage to align with one of the X direction and the Y direction of the stage.
    Type: Application
    Filed: November 23, 2019
    Publication date: May 21, 2020
    Inventors: Michiie Sakamoto, Akinori Hashiguchi, Shinobu Masuda, Tsuguhide Sakata, Masahide Hasegawa, Osamu Nagatsuka, Koichiro Nishikawa
  • Patent number: 10634897
    Abstract: A microscope system comprises a microscope body, an image sensor mounted on the microscope body, and a stage that moves in an X-axis direction and a Y-axis direction, and places a slide as an observation object. The stage includes a mark used to indicate a stage reference position. The microscope system obtains positions of the stage in the X-axis direction and the Y-axis direction, and detects the stage reference position indicated by a mark provided on the stage and a slide reference position indicated by a mark provided on a slide placed on the stage. The microscope system manages the position of the stage by coordinates based on the slide reference position if the slide reference position is detected, and manages the position of the stage by coordinates based on the stage reference position if the slide reference position is not detected.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: April 28, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Michiie Sakamoto, Akinori Hashiguchi, Shinobu Masuda, Tsuguhide Sakata, Masahide Hasegawa, Masahiro Ando, Osamu Nagatsuka, Koichiro Nishikawa
  • Publication number: 20200057292
    Abstract: A stage apparatus for a microscope comprises a first stage provided on a minor base of the microscope and fixed to a stage member that moves in an optical axis direction, a second stage that relatively moves over a surface of the first stage in a first direction, a third stage that relatively moves over a surface of the second stage in a second direction, the third stage having a placement portion for placing a microscope slide, and an exterior cover for covering at least a portion of the second stage and the third stage, the exterior cover being fixed to the first stage or the stage member. The exterior cover provides a space for the second stage and the third stage to move, and exposes the placement portion of the third stage.
    Type: Application
    Filed: October 25, 2019
    Publication date: February 20, 2020
    Inventors: Tsuguhide Sakata, Masahiro Ando, Osamu Nagatsuka, Koichiro Nishikawa, Koji Kimura, Shigeki Sakurai, Katsuyuki Tanaka, Hiroki Kobayashi, Takuji Okamoto
  • Patent number: 10527836
    Abstract: A microscope system comprises a microscope body, a stage configured to place a slide as an observation target and move in an X direction and a Y direction. The microscope system changes an arrangement of the placed slide with respect to the stage so as to cause a direction indicated by a mark provided on the slide placed on the stage to align with one of the X direction and the Y direction of the stage.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: January 7, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Michiie Sakamoto, Akinori Hashiguchi, Shinobu Masuda, Tsuguhide Sakata, Masahide Hasegawa, Osamu Nagatsuka, Koichiro Nishikawa
  • Publication number: 20190033570
    Abstract: An adapter which controls rotation of a microscope on which a slide is placed and an imaging unit and which easily performs correction of a rotation shift is provided. The adapter includes a first connection member connected to a microscope, a second connection member connected to an imaging unit, a rotation member arranged between the first and second connection members and configured to rotate the second connection member relative to the first connection member using optical axes of the microscope and the imaging unit at a center, a control member configured to be fixed on one of the first and second connection members and control the rotation of the connection member, and a driving member configured to be engaged with the first connection member or the second connection member and change a position of the second connection member relative to the first connection member around the optical axes.
    Type: Application
    Filed: September 28, 2018
    Publication date: January 31, 2019
    Inventors: Akihiro Sakai, Osamu Nagatsuka
  • Publication number: 20180267288
    Abstract: A microscope system comprises a microscope body, an image sensor mounted on the microscope body via mounting means and configured to capture an observation image under a microscope, and a stage that moves in an X-axis direction and a Y-axis direction, which are orthogonal to each other, and places a slide as an observation object and includes a mark used to indicate a stage reference position. The microscope system obtains positions of the stage in the X-axis direction and the Y-axis direction, and detects, from an image captured by the image sensor, the stage reference position indicated by a mark provided on the stage and a slide reference position indicated by a mark provided on a slide placed on the stage. The microscope system manages the position of the stage by coordinates based on the slide reference position if the slide reference position is detected, and manages the position of the stage by coordinates based on the stage reference position if the slide reference position is not detected.
    Type: Application
    Filed: December 8, 2015
    Publication date: September 20, 2018
    Inventors: Michiie Sakamoto, Akinori Hashiguchi, Shinobu Masuda, Tsuguhide Sakata, Masahide Hasegawa, Masahiro Ando, Osamu Nagatsuka, Koichiro Nishikawa
  • Publication number: 20170329118
    Abstract: A microscope system comprises a microscope body, a stage configured to place a slide as an observation target and move in an X direction and a Y direction. The microscope system changes an arrangement of the placed slide with respect to the stage so as to cause a direction indicated by a mark provided on the slide placed on the stage to align with one of the X direction and the Y direction of the stage.
    Type: Application
    Filed: December 8, 2015
    Publication date: November 16, 2017
    Inventors: Michiie Sakamoto, Akinori Hashiguchi, Shinobu Masuda, Tsuguhide Sakata, Masahide Hasegawa, Osamu Nagatsuka, Koichiro Nishikawa
  • Publication number: 20170329123
    Abstract: A microscope system comprises a microscope body, an imaging unit connected to the microscope body and including an image sensor for capturing a microscopic image, and an XY stage configured to place a slide and move in an X direction and a Y direction. The microscope system changes an arrangement of the image sensor with respect to the microscope body so as to cause a direction defined by a pixel arrangement of the image sensor to align with one of the X direction and the Y direction of the XY stage.
    Type: Application
    Filed: December 8, 2015
    Publication date: November 16, 2017
    Inventors: Michiie Sakamoto, Akinori Hashiguchi, Shinobu Masuda, Tsuguhide Sakata, Osamu Nagatsuka, Koichiro Nishikawa
  • Publication number: 20170269346
    Abstract: A microscope system includes a microscope body, an XY stage mounted on the microscope body and including a stage configured to place a slide as an observation target and move in an X-axis direction and a Y-axis direction perpendicular to each other, and an XY two-dimensional scale plate fixed to the stage. The XY two-dimensional scale plate is provided with a first mark that provides axis information in the X-axis direction throughout a movable range of the stage in the Y-axis direction and a second mark that provides axis information in the Y-axis direction throughout a movable range of the stage in the X-axis direction, which are used to recognize X- and Y-coordinates of the stage.
    Type: Application
    Filed: December 8, 2015
    Publication date: September 21, 2017
    Applicant: Canon Kabushiki Kaisha
    Inventors: Michiie Sakamoto, Akinori Hashiguchi, Shinobu Masuda, Tsuguhide Sakata, Masahide Hasegawa, Masahiro Ando, Osamu Nagatsuka
  • Patent number: 7680013
    Abstract: Provided is a spatial light modulator SLM and a photodetector element CMOS sensor are placed on the same chip, and the alignment thereof and a relay lens system are eliminated, whereby an optical system is reduced in cost and made compact. Specifically, provided is an optical information recording and reproducing apparatus for recording information by allowing information light and reference light to interfere with each other and reproducing the information using the reference light including: a light source; a spatial light modulator for generating at least an information light with respect to a light beam from the light source; an objective lens for irradiating a recording medium with the light beam from the spatial light modulator; and a photodetector element for receiving a reproduction light from the recording medium, in which the spatial light modulator and the photodetector element are formed on the same semiconductor substrate.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: March 16, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Osamu Koyama, Osamu Nagatsuka, Shinnosuki Torii, Koichiro Nishikawa
  • Patent number: 7516464
    Abstract: Disclosed is an optical pickup device which is small, light, and thin and which is equipped with a tilt adjusting mechanism. A lens holding body holding an objective lens and a support body supporting the lens holding body so as to allow the lens holding body to move in the focusing direction and/or the tracking direction of the objective lens, are supported at two support points on a support body mounting surface of an optical base so as to be rotatable around an axis extending in a tangential direction of an optical disk.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: April 7, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventor: Osamu Nagatsuka
  • Patent number: 7339859
    Abstract: The present invention provides an optical disk apparatus and an optical pickup which are of a thin type and capable of correcting spherical aberration, including: a semiconductor laser for emitting light; an objective lens for condensing the light from the semiconductor laser on a recording layer through a light transmission layer; at least two optical elements arranged between the semiconductor laser and the objective lend and having a predetermined refractive power; a spherical aberration correction element driving mechanism for moving at least one of the optical elements along an optical axis so as to cancel spherical aberration of imaging light on the recording layer; and a lens holder for holding at least one of the optical elements, a part of the lens folder being inserted into an opening of a cartridge and which.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: March 4, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventor: Osamu Nagatsuka
  • Publication number: 20070121468
    Abstract: Provided is a spatial light modulator SLM and a photodetector element CMOS sensor are placed on the same chip, and the alignment thereof and a relay lens system are eliminated, whereby an optical system is reduced in cost and made compact. Specifically, provided is an optical information recording and reproducing apparatus for recording information by allowing information light and reference light to interfere with each other and reproducing the information using the reference light including: a light source; a spatial light modulator for generating at least an information light with respect to a light beam from the light source; an objective lens for irradiating a recording medium with the light beam from the spatial light modulator; and a photodetector element for receiving a reproduction light from the recording medium, in which the spatial light modulator and the photodetector element are formed on the same semiconductor substrate.
    Type: Application
    Filed: November 22, 2006
    Publication date: May 31, 2007
    Applicant: Canon Kabushiki Kaisha
    Inventors: Osamu Koyama, Osamu Nagatsuka, Shinnosuke Torii, Koichiro Nishikawa
  • Patent number: 7106663
    Abstract: The disk recording/reproducing apparatus of the present invention has a magnetic head which ascends or descends between a descent position proximate to a disk recording medium housed in a cartridge and an ascent position which is separate from the medium, an ascending/descending control lever which controls ascent/descent of the magnetic head, a driving section which drives the ascending/descending control lever, and an ejecting operation section which couples with the ascending/descending control lever and can move between a position where the cartridge is allowed to be ejected out of the apparatus and a position where the cartridge is disabled from being ejected in accordance with the movement of the ascending/descending control lever, wherein the length of movement of the ascending/descending control lever is greater than the length of movement of the ejection operation section.
    Type: Grant
    Filed: September 4, 2003
    Date of Patent: September 12, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventor: Osamu Nagatsuka
  • Patent number: 7002268
    Abstract: A spindle motor adapted to be loaded with a disk provided with an attracted plate and to rotate the disk is provided which comprises a turn table having a flange portion on a front surface of which the disk is to be mounted and on a back surface of which a rotor yoke is supported, and a cylindrical portion a distal end of which is to be opposed to the attracted plate, the turn table being supported on a housing of a stator through a rotational shaft; an attraction magnet fixed to the distal end of the cylindrical portion of the turn table, and an aligning member an inner periphery of which is engaged with an outer periphery of the cylindrical portion and an outer periphery of which is to be brought into contact with an inner periphery of a center hole of the disk to align the disk; and an urging member interposed between the aligning member and the flange portion of the turn table to urge the aligning member by restoration force, wherein the urging member is comprised of an annular spring material with a plur
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: February 21, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventor: Osamu Nagatsuka
  • Publication number: 20050157608
    Abstract: The present invention provides an optical disk apparatus and an optical pickup which are of a thin type and capable of correcting spherical aberration, including: a semiconductor laser for emitting light; an objective lens for condensing the light from the semiconductor laser on a recording layer through a light transmission layer; at least two optical elements arranged between the semiconductor laser and the objective lend and having a predetermined refractive power; a spherical aberration correction element driving mechanism for moving at least one of the optical elements along an optical axis so as to cancel spherical aberration of imaging light on the recording layer; and a lens holder for holding at least one of the optical elements, a part of the lens folder being inserted into an opening of a cartridge and which.
    Type: Application
    Filed: December 27, 2004
    Publication date: July 21, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Osamu Nagatsuka
  • Patent number: 6901599
    Abstract: An optical-pickup feeding device includes a chassis, a guide shaft supported on the chassis, a feeding motor on a main shaft of which a lead screw is formed, a connecting member fitted in the lead screw, a frame, mounted on the chassis, for supporting the feeding motor, and an optical pickup. The connecting member is fixed on one side of the optical pickup, and another side of the optical pickup is anchored on the guide shaft. The optical pickup is driven in a direction parallel to the guide shaft and the lead screw by the feeding motor via the connecting member. The device also includes a meshing feed member, fixed to the optical pickup or the connecting member, having a tooth in mesh engagement with a screw portion of the lead screw.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: May 31, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventor: Osamu Nagatsuka
  • Publication number: 20040174780
    Abstract: Disclosed is an optical pickup device which is small, light, and thin and which is equipped with a tilt adjusting mechanism. A lens holding body holding an objective lens and a support body supporting the lens holding body so as to allow the lens holding body to move in the focusing direction and/or the tracking direction of the objective lens, are supported at two support points on a support body mounting surface of an optical base so as to be rotatable around an axis extending in a tangential direction of an optical disk.
    Type: Application
    Filed: February 27, 2004
    Publication date: September 9, 2004
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Osamu Nagatsuka