Patents by Inventor Takuya Ohtsu

Takuya Ohtsu 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).

  • Image Pickup Optical System and Image Pickup Apparatus Using the Same
    Publication number: 20150146076
    Abstract: An image pickup optical system made of five lenses, includes in order from an object side, an aperture stop, a first lens L1 having a positive refracting power, a second lens L2 having a negative refracting power, a third lens L3 having a positive refracting power, a fourth lens L4 having a positive refracting power, and a fifth lens L5 having a negative refracting power. Moreover, an image pickup apparatus includes this image pickup optical system.
    Type: Application
    Filed: January 29, 2015
    Publication date: May 28, 2015
    Inventor: Takuya Ohtsu
  • Image pickup optical system and image pickup apparatus using the same
    Patent number: 8976462
    Abstract: An image pickup optical system made of five lenses, includes in order from an object side, an aperture stop, a first lens L1 having a positive refracting power, a second lens L2 having a negative refracting power, a third lens L3 having a positive refracting power, a fourth lens L4 having a positive refracting power, and a fifth lens L5 having a negative refracting power. Moreover, an image pickup apparatus includes this image pickup optical system.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: March 10, 2015
    Assignee: Olympus Corporation
    Inventor: Takuya Ohtsu
  • Image pickup optical system and image pickup apparatus using the same
    Patent number: 8964095
    Abstract: The image pickup optical system comprises: an aperture is placed on the most object side, the image pickup optical system comprises, in order from the object side: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens having a positive refractive power; and a fifth lens having a negative refractive power, and the following conditional expression is satisfied: ?1.49<(r6+r7)/(r6?r7)<1.24??(1) where r6 is the paraxial radius of curvature of an object side surface of the third lens, and r7 is the paraxial radius of curvature of an image plane side surface of the third lens.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: February 24, 2015
    Assignee: Olympus Corporation
    Inventor: Takuya Ohtsu
  • Image Pickup Optical System and Image Pickup Apparatus Using the Same
    Publication number: 20130293756
    Abstract: An image pickup optical system made of five lenses, includes in order from an object side, an aperture stop, a first lens L1 having a positive refracting power, a second lens L2 having a negative refracting power, a third lens L3 having a positive refracting power, a fourth lens L4 having a positive refracting power, and a fifth lens L5 having a negative refracting power. Moreover, an image pickup apparatus includes this image pickup optical system.
    Type: Application
    Filed: June 28, 2013
    Publication date: November 7, 2013
    Inventor: Takuya Ohtsu
  • Image pickup optical system and image pickup apparatus using the same
    Patent number: 8508836
    Abstract: An image pickup optical system made of five lenses, includes in order from an object side, an aperture stop, a first lens L1 having a positive refracting power, a second lens L2 having a negative refracting power, a third lens L3 having a positive refracting power, a fourth lens L4 having a positive refracting power, and a fifth lens L5 having a negative refracting power. Moreover, an image pickup apparatus includes this image pickup optical system.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: August 13, 2013
    Assignee: Olympus Corporation
    Inventor: Takuya Ohtsu
  • Image pickup optical system and image pickup apparatus using the same
    Patent number: 8441743
    Abstract: An image pickup optical system made of five lenses, includes in order from an object side, an aperture stop, a first lens L1 having a positive refracting power, a second lens L2 having a negative refracting power, a third lens L3 having a positive refracting power, a fourth lens L4 having a positive refracting power, and a fifth lens L5 having a negative refracting power. Moreover, an image pickup apparatus includes this image pickup optical system.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: May 14, 2013
    Assignee: Olympus Corporation
    Inventor: Takuya Ohtsu
  • Image pickup optical system and image pickup apparatus using the same
    Patent number: 8411374
    Abstract: The image pickup optical system comprises: an aperture is placed on the most object side, the image pickup optical system comprises, in order from the object side: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens having a positive refractive power; and a fifth lens having a negative refractive power, and the following conditional expression is satisfied: ?1.49<(r6+r7)/(r6?r7)<1.24??(1) where r6 is the paraxial radius of curvature of an object side surface of the third lens, and r7 is the paraxial radius of curvature of an image plane side surface of the third lens.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: April 2, 2013
    Assignee: Olympus Corporation
    Inventor: Takuya Ohtsu
  • Image Pickup Optical System and Image Pickup Apparatus Using the Same
    Publication number: 20120293682
    Abstract: An image pickup optical system made of five lenses, includes in order from an object side, an aperture stop, a first lens L1 having a positive refracting power, a second lens L2 having a negative refracting power, a third lens L3 having a positive refracting power, a fourth lens L4 having a positive refracting power, and a fifth lens L5 having a negative refracting power. Moreover, an image pickup apparatus includes this image pickup optical system.
    Type: Application
    Filed: August 3, 2012
    Publication date: November 22, 2012
    Inventor: Takuya Ohtsu
  • Image pickup optical system and image pickup apparatus using the same
    Patent number: 8289437
    Abstract: An image pickup optical system made of five lenses, includes in order from an object side, an aperture stop, a first lens L1 having a positive refracting power, a second lens L2 having a negative refracting power, a third lens L3 having a positive refracting power, a fourth lens L4 having a positive refracting power, and a fifth lens L5 having a negative refracting power. Moreover, an image pickup apparatus includes this image pickup optical system.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: October 16, 2012
    Assignee: Olympus Corporation
    Inventor: Takuya Ohtsu
  • Image Pickup Optical System and Image Pickup Apparatus Using the Same
    Publication number: 20120224091
    Abstract: An image pickup optical system made of five lenses, includes in order from an object side, an aperture stop, a first lens L1 having a positive refracting power, a second lens L2 having a negative refracting power, a third lens L3 having a positive refracting power, a fourth lens L4 having a positive refracting power, and a fifth lens L5 having a negative refracting power. Moreover, an image pickup apparatus includes this image pickup optical system.
    Type: Application
    Filed: May 16, 2012
    Publication date: September 6, 2012
    Inventor: Takuya Ohtsu
  • Image pickup optical system and image pickup apparatus using the same
    Patent number: 8203796
    Abstract: An image pickup optical system made of five lenses, includes in order from an object side, an aperture stop, a first lens L1 having a positive refracting power, a second lens L2 having a negative refracting power, a third lens L3 having a positive refracting power, a fourth lens L4 having a positive refracting power, and a fifth lens L5 having a negative refracting power. Moreover, an image pickup apparatus includes this image pickup optical system.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: June 19, 2012
    Assignee: Olympus Corporation
    Inventor: Takuya Ohtsu
  • IMAGE PICKUP OPTICAL SYSTEM AND IMAGE PICKUP APPARATUS USING THE SAME
    Publication number: 20110310287
    Abstract: The image pickup optical system comprises: an aperture is placed on the most object side, the image pickup optical system comprises, in order from the object side: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens having a positive refractive power; and a fifth lens having a negative refractive power, and the following conditional expression is satisfied: ?1.49<(r6+r7)/(r6?r7)<1.24 ??(1) where r6 is the paraxial radius of curvature of an object side surface of the third lens, and r7 is the paraxial radius of curvature of an image plane side surface of the third lens.
    Type: Application
    Filed: June 10, 2011
    Publication date: December 22, 2011
    Applicant: OLYMPUS CORPORATION
    Inventor: Takuya OHTSU
  • Image pickup optical system and image pickup apparatus using the same
    Publication number: 20100214467
    Abstract: An image pickup optical system made of five lenses, includes in order from an object side, an aperture stop, a first lens L1 having a positive refracting power, a second lens L2 having a negative refracting power, a third lens L3 having a positive refracting power, a fourth lens L4 having a positive refracting power, and a fifth lens L5 having a negative refracting power. Moreover, an image pickup apparatus includes this image pickup optical system.
    Type: Application
    Filed: February 18, 2010
    Publication date: August 26, 2010
    Inventor: Takuya Ohtsu