Patents by Inventor Hisao Fukaya

Hisao Fukaya 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).

  • IMAGING LENS
    Publication number: 20190361198
    Abstract: An imaging lens includes a first lens; a second lens; a third lens having positive refractive power; a fourth lens; a fifth lens; and a sixth lens, arranged in this order from an object side to an image plane side. The second lens has a convex surface facing the object side near an optical axis thereof. The sixth lens has a convex surface facing the image plane side near an optical axis thereof. The first lens is arranged so that a surface thereof on the object side is away from an image plane by a specific distance on an optical axis thereof. The second lens is arranged to be away from the third lens by a specific distance on the optical axis thereof. The fourth lens is arranged to be away from the fifth lens by a specific distance on an optical axis thereof.
    Type: Application
    Filed: August 9, 2019
    Publication date: November 28, 2019
    Inventors: Yoji KUBOTA, Kenichi KUBOTA, Hitoshi HIRANO, Hisao FUKAYA
  • Imaging lens
    Patent number: 10488626
    Abstract: An imaging lens includes a first lens group and a second lens group, arranged in this order from an object side to an image plane side. The first lens group includes a first lens having positive refractive power, a second lens, and a third lens. The second lens group includes a fourth lens, a fifth lens having negative refractive power, and a sixth lens having negative refractive power. The fourth lens has a convex surface facing the image plane side near an optical axis thereof. The fifth lens has a convex surface facing the object side near an optical axis thereof. The fifth lens has refractive power weaker than those of the fourth lens and the sixth lens. The fourth lens has a specific Abbe's number and the sixth lens has a specific focal length.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: November 26, 2019
    Assignee: KANTATSU CO., LTD.
    Inventors: Yoji Kubota, Kenichi Kubota, Hitoshi Hirano, Hisao Fukaya
  • IMAGING LENS
    Publication number: 20190353876
    Abstract: An imaging lens includes a first lens group having positive refractive power and a second lens group, arranged in this order from an object side to an image plane side. The first lens group includes a first lens, a second lens, and a third lens. The second lens group includes a fourth lens having positive refractive power, a fifth lens, and a sixth lens. The third lens has a concave surface facing the image plane side near an optical axis thereof. The fifth lens has a concave surface facing the image plane side near an optical axis thereof. The sixth lens has a concave surface facing the object side near an optical axis thereof. The second lens has a specific Abbe's number.
    Type: Application
    Filed: July 30, 2019
    Publication date: November 21, 2019
    Inventors: Yoji KUBOTA, Kenichi KUBOTA, Hitoshi HIRANO, Hisao FUKAYA
  • IMAGING LENS
    Publication number: 20190353875
    Abstract: An imaging lens includes a first lens group and a second lens group, arranged in this order from an object side to an image plane side. The first lens group includes a first lens, a second lens, and a third lens. The second lens group includes a fourth lens, a fifth lens, and a sixth lens. The second lens has a convex surface facing the image plane side near an optical axis thereof. The fifth lens has a concave surface facing the image plane side near an optical axis thereof. The sixth lens has a concave surface facing the object side near an optical axis thereof. The fifth lens has refractive power weaker than those of the fourth lens and the sixth lens. The second lens has a specific Abbe's number.
    Type: Application
    Filed: July 30, 2019
    Publication date: November 21, 2019
    Inventors: Yoji KUBOTA, Kenichi KUBOTA, Hitoshi HIRANO, Hisao FUKAYA
  • IMAGING LENS
    Publication number: 20190346665
    Abstract: An imaging lens includes a first lens group and a second lens group, arranged in this order from an object side to an image plane side. The first lens group includes a first lens, a second lens, and a third lens having negative refractive power. The second lens group includes a fourth lens, a fifth lens having negative refractive power, and a sixth lens having negative refractive power. The fourth lens has a specific Abbe's number. The fifth lens has a specific Abbe's number.
    Type: Application
    Filed: July 26, 2019
    Publication date: November 14, 2019
    Inventors: Yoji KUBOTA, Kenichi KUBOTA, Hitoshi HIRANO, Hisao FUKAYA
  • IMAGING LENS
    Publication number: 20190346667
    Abstract: An imaging lens includes a first lens group and a second lens group having negative refractive power, arranged in this order from an object side to an image plane side. The first lens group includes a first lens, a second lens, and a third lens. The second lens group includes a fourth lens having positive refractive power, a fifth lens, and a sixth lens. The second lens has a concave surface facing the object side near an optical axis thereof. The third lens has a concave surface facing the image plane side near an optical axis thereof. The sixth lens has a concave surface facing the object side near an optical axis thereof. The fourth lens has a specific Abbe's number.
    Type: Application
    Filed: July 30, 2019
    Publication date: November 14, 2019
    Inventors: Yoji KUBOTA, Kenichi KUBOTA, Hitoshi HIRANO, Hisao FUKAYA
  • IMAGING LENS
    Publication number: 20190346666
    Abstract: An imaging lens includes a first lens group and a second lens group, arranged in this order from an object side to an image plane side. The first lens group includes a first lens, a second lens, and a third lens having negative refractive power. The second lens group includes a fourth lens having positive refractive power, a fifth lens, and a sixth lens. The first lens has a convex surface facing the image plane side near an optical axis thereof. The third lens has a concave surface facing the image plane side near an optical axis thereof. The fourth lens has a convex surface facing the image plane side near an optical axis thereof. The fourth lens has a specific Abbe's number.
    Type: Application
    Filed: July 26, 2019
    Publication date: November 14, 2019
    Inventors: Yoji KUBOTA, Kenichi KUBOTA, Hitoshi HIRANO, Hisao FUKAYA
  • IMAGING LENS
    Publication number: 20190331878
    Abstract: There is provided an imaging lens with high-resolution which satisfies demand of the wide field of view, the low-profileness and the low F-number, and excellently corrects aberrations.
    Type: Application
    Filed: November 28, 2018
    Publication date: October 31, 2019
    Inventor: Hisao FUKAYA
  • IMAGING LENS
    Publication number: 20190317301
    Abstract: An imaging lens includes a first lens group and a second lens group, arranged in this order from an object side to an image plane side. The first lens group includes a first lens, a second lens, and a third lens having negative refractive power. The second lens group includes a fourth lens having positive refractive power, a fifth lens, and a sixth lens. The third lens has a concave surface facing the image plane side near an optical axis thereof. The fifth lens has a concave surface facing the image plane side near an optical axis thereof. The fourth lens has a specific Abbe's number.
    Type: Application
    Filed: June 26, 2019
    Publication date: October 17, 2019
    Inventors: Yoji KUBOTA, Kenichi KUBOTA, Hitoshi HIRANO, Hisao FUKAYA
  • IMAGING LENS
    Publication number: 20190317303
    Abstract: An imaging lens includes a first lens group having positive refractive power and a second lens group having negative refractive power, arranged in this order from an object side to an image plane side. The first lens group includes a first lens, a second lens, and a third lens. The second lens group includes a fourth lens, a fifth lens having negative refractive power, and a sixth lens. The third lens has a concave surface facing the image plane side near an optical axis thereof. The sixth lens has a concave surface facing the object side near an optical axis thereof. The fifth lens has a specific Abbe's number.
    Type: Application
    Filed: June 26, 2019
    Publication date: October 17, 2019
    Applicant: KANTATSU CO., LTD.
    Inventors: Yoji KUBOTA, Kenichi KUBOTA, Hitoshi HIRANO, Hisao FUKAYA
  • IMAGING LENS
    Publication number: 20190317300
    Abstract: An imaging lens includes a first lens group and a second lens group, arranged in this order from an object side to an image plane side. The first lens group includes a first lens, a second lens, and a third lens having negative refractive power. The second lens group includes a fourth lens, a fifth lens, and a sixth lens. The third lens has a concave surface facing the image plane side near an optical axis thereof. The fifth lens has a concave surface facing the image plane side near an optical axis thereof. The fourth lens has a specific Abbe's number. The fifth lens has a specific Abbe's number.
    Type: Application
    Filed: June 25, 2019
    Publication date: October 17, 2019
    Inventors: Yoji KUBOTA, Kenichi KUBOTA, Hitoshi HIRANO, Hisao FUKAYA
  • IMAGING LENS
    Publication number: 20190317304
    Abstract: An imaging lens includes a first lens group and a second lens group, arranged in this order from an object side to an image plane side. The first lens group includes a first lens, a second lens, and a third lens. The second lens group includes a fourth lens, a fifth lens having negative refractive power, and a sixth lens. The third lens has a concave surface facing the image plane side near an optical axis thereof. The fourth lens has a convex surface facing the image plane side near an optical axis thereof. The sixth lens has a concave surface facing the object side near an optical axis thereof. The fourth lens has a specific Abbe's number. The fifth lens has a specific Abbe's number.
    Type: Application
    Filed: June 26, 2019
    Publication date: October 17, 2019
    Inventors: Yoji KUBOTA, Kenichi KUBOTA, Hitoshi HIRANO, Hisao FUKAYA
  • IMAGING LENS
    Publication number: 20190317302
    Abstract: An imaging lens includes a first lens group and a second lens group, arranged in this order from an object side to an image plane side. The first lens group includes a first lens, a second lens, and a third lens having negative refractive power. The second lens group includes a fourth lens, a fifth lens having negative refractive power, and a sixth lens. The third lens has a concave surface facing the image plane side near an optical axis thereof. The fourth lens has a specific Abbe's number. The fifth lens has a specific Abbe's number.
    Type: Application
    Filed: June 26, 2019
    Publication date: October 17, 2019
    Inventors: Yoji KUBOTA, Kenichi KUBOTA, Hitoshi HIRANO, Hisao FUKAYA
  • IMAGING LENS
    Publication number: 20190212524
    Abstract: There is provided an imaging lens with high resolution which satisfies in well balance low-profileness and low F-number and properly corrects aberrations. An imaging lens comprise in order from an object side to an image side, a first lens, a second lens having a convex surface facing the object side near an optical axis, a third lens having negative refractive power and the convex surface facing the object side near the optical axis, a fourth lens, and a fifth lens, wherein below conditional expressions (1) and (2) are satisfied: 0.4<TTL/f<1.0 ??(1) 0.4<f/TTL<1.7 ??(2) where TTL: total track length, f: focal length of an overall optical system, and f5: focal length of the fifth lens.
    Type: Application
    Filed: August 9, 2018
    Publication date: July 11, 2019
    Inventor: Hisao FUKAYA
  • Imaging lens
    Patent number: 10345557
    Abstract: An imaging lens includes a first lens group and a second lens group arranged in this order from an object side to an image plane side. The first lens group includes a first lens having positive refractive power, a second lens having negative refractive power, and a third lens, arranged with a space in between. The second lens group includes a front side lens group having negative refractive power and a rear side lens group having positive refractive power. The front side lens group includes a fourth lens and a fifth lens arranged with a space in between. The rear side lens group includes a sixth lens and a seventh lens arranged with a space in between. The fourth lens is formed in a shape so that a surface thereof on the object side has a specific curvature radius so that a specific conditional expression is satisfied.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: July 9, 2019
    Assignee: KANTATSU CO., LTD.
    Inventors: Yoji Kubota, Kenichi Kubota, Hitoshi Hirano, Hisao Fukaya
  • Imaging lens
    Patent number: 10338349
    Abstract: An imaging lens includes a first lens group and a second lens group, arranged in this order from an object side to an image plane side. The first lens group includes a first lens, a second lens, and a third lens. The second lens group includes a fourth lens, a fifth lens having negative refractive power, and a sixth lens having positive refractive power. The first lens is formed in a shape so that a surface thereof on the object side and a surface thereof on the image plane side have positive curvature radii. The sixth lens is formed in a shape so that a surface thereof on the object side and a surface thereof on the image plane side are aspheric. The sixth lens has a specific Abbe's number.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: July 2, 2019
    Assignee: KANTATSU CO., LTD.
    Inventors: Yoji Kubota, Kenichi Kubota, Hitoshi Hirano, Hisao Fukaya
  • Imaging lens
    Patent number: 10330893
    Abstract: An imaging lens includes an aperture stop; a first lens having positive refractive power; a second lens having negative refractive power; a third lens; a fourth lens; a fifth lens having negative refractive power; and a sixth lens, arranged in this order from an object side to an image plane side. A surface of the first lens on the image plane side has a positive curvature radius. A surface of the third lens on the image plane side has a positive curvature radius. A surface of the fifth lens on the object side and a surface of the fifth lens on the image plane side have inflection points and are aspheric. A surface of the sixth lens on the object side has a positive curvature radius. The first to the third lenses have specific thicknesses so that specific conditional expressions are satisfied.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: June 25, 2019
    Assignee: KANTATSU CO., LTD.
    Inventors: Yoji Kubota, Kenichi Kubota, Hitoshi Hirano, Hisao Fukaya
  • IMAGING LENS
    Publication number: 20190179119
    Abstract: An imaging lens includes a first lens having negative refractive power; a second lens having positive refractive power; a third lens having positive refractive power; a fourth lens having negative refractive power; a fifth lens; and a sixth lens having negative refractive power, arranged in this order from an object side to an image plane side. The fourth lens is formed in a shape so that a surface thereof on the image plane side is convex near an optical axis thereof.
    Type: Application
    Filed: October 19, 2018
    Publication date: June 13, 2019
    Inventors: Yoji KUBOTA, Kenichi KUBOTA, Hitoshi HIRANO, Hisao FUKAYA
  • IMAGING LENS
    Publication number: 20190179118
    Abstract: An imaging lens includes a first lens having negative refractive power; a second lens having positive refractive power; a third lens having positive refractive power; a fourth lens having negative refractive power; a fifth lens; and a sixth lens having negative refractive power, arranged in this order from an object side to an image plane side. The fourth lens is disposed to face the fifth lens. The fourth lens is formed in a shape so that a surface thereof on the image plane side is concave at a peripheral portion thereof. The fifth lens is formed in a shape so that a surface thereof on the object side is concave at a peripheral portion thereof.
    Type: Application
    Filed: October 19, 2018
    Publication date: June 13, 2019
    Inventors: Yoji Kubota, Kenichi Kubota, Hitoshi Hirano, Hisao Fukaya
  • IMAGING LENS
    Publication number: 20190154994
    Abstract: An imaging lens includes a first lens having positive refractive power; a second lens having positive refractive power; a third lens; a fourth lens; a fifth lens; and a sixth lens, arranged in this order from an object side to an image plane side with spaces in between each of the lenses. The first lens is formed in a meniscus shape to have an object side convex surface. The sixth lens is formed in a meniscus shape to have an object side concave surface. The second lens has a specific focal length. The third lens has a specific focal length. The sixth lens has a specific Abbe's number.
    Type: Application
    Filed: January 18, 2019
    Publication date: May 23, 2019
    Inventors: Yoji KUBOTA, Kenichi KUBOTA, Hitoshi HIRANO, Hisao FUKAYA