Patents by Inventor Abe Yasuhiko

Abe Yasuhiko 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).

  • Lens system
    Patent number: 7889441
    Abstract: A lens system including sequentially, from an object side to an image side, a first lens of a biconvex type having two aspherical surfaces, a second lens of a biconcave type having at least one aspherical surface, a third lens having two aspherical surfaces and having a positive refracting power, and a fourth lens having two aspherical surfaces and having a negative refracting power.
    Type: Grant
    Filed: February 15, 2010
    Date of Patent: February 15, 2011
    Assignee: Samsung Techwin Co., Ltd.
    Inventors: Abe Yasuhiko, Tetsusuke Kusakawa
  • LENS SYSTEM
    Publication number: 20100208363
    Abstract: A lens system including sequentially, from an object side to an image side, a first lens of a biconvex type having two aspherical surfaces, a second lens of a biconcave type having at least one aspherical surface, a third lens having two aspherical surfaces and having a positive refracting power, and a fourth lens having two aspherical surfaces and having a negative refracting power.
    Type: Application
    Filed: February 15, 2010
    Publication date: August 19, 2010
    Applicant: SAMSUNG TECHWIN CO., LTD.
    Inventors: Abe YASUHIKO, Tetsusuke KUSAKAWA
  • Photographic lens
    Patent number: 7633690
    Abstract: A photographic lens comprising a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a positive refractive power, and a fourth lens having a negative refractive power, wherein the lenses are numbered in order of location from the object, and wherein a surface of the fourth lens toward the object is an aspheric surface having an inflection point.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: December 15, 2009
    Assignee: Samsung Techwin Co., Ltd.
    Inventor: Abe Yasuhiko
  • Compact lens system
    Patent number: 7558005
    Abstract: A compact lens system that includes a first lens that is a meniscus lens with positive refractive power and having aspheric surfaces on both sides, and a convex surface on a surface facing an object; a second lens formed of a biconcave lens having aspheric surfaces on both sides; a third lens having aspheric surfaces on both sides and having positive refractive power; and a fourth lens formed of a biconcave lens having aspheric surfaces on both sides and an inflection point on an upper aspheric surface. The first through fourth lenses are arranged sequentially from the object, and an aperture diaphragm is disposed on the object side of the first lens.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: July 7, 2009
    Assignee: Samsung Techwin Co., Ltd.
    Inventor: Abe Yasuhiko
  • Compact lens system
    Publication number: 20090109549
    Abstract: A compact lens system that includes a first lens that is a meniscus lens with positive refractive power and having aspheric surfaces on both sides, and a convex surface on a surface facing an object; a second lens formed of a biconcave lens having aspheric surfaces on both sides; a third lens having aspheric surfaces on both sides and having positive refractive power; and a fourth lens formed of a biconcave lens having aspheric surfaces on both sides and an inflection point on an upper aspheric surface. The first through fourth lenses are arranged sequentially from the object, and an aperture diaphragm is disposed on the object side of the first lens.
    Type: Application
    Filed: August 1, 2008
    Publication date: April 30, 2009
    Applicant: Samsung Techwin Co., Ltd.
    Inventor: Abe Yasuhiko
  • Photographic lens
    Publication number: 20080266676
    Abstract: A photographic lens comprising a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a positive refractive power, and a fourth lens having a negative refractive power, wherein the lenses are numbered in order of location from the object, and wherein a surface of the fourth lens toward the object is an aspheric surface having an inflection point.
    Type: Application
    Filed: November 9, 2007
    Publication date: October 30, 2008
    Applicant: Samsung Techwin Co., Ltd.
    Inventor: Abe Yasuhiko