Patents by Inventor Sumitaka Sasaki

Sumitaka Sasaki 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).

  • Blind, blind slat, manufacturing method of the same, and forming machine of the same
    Patent number: 7461440
    Abstract: To provide a blind slat resistant to bending with keeping good rotation of a slat. The slat (16) is formed with a lift cord passing hole (16a) through which a lift cord passes, and when a length of the lift cord passing hole (16a) in a slat width direction is b, a slat width is a, and a slat crown height is e, 0.59 · e a + 0.19 ? b a ? - 1.41 · e a + 0.70 is satisfied, and the slat (16) is formed with a protrusion (16g), which crosses an extension line (16d) of the lift cord passing hole (16a) and protrudes beyond a general plane (16e) of the slat, the extension line (16d) connecting an edge (16b) of the lift cord passing hole (16a) in the slat width direction and an edge (16c) of the slat (16) in the slat width direction.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: December 9, 2008
    Assignee: Nichibei Co., Ltd.
    Inventors: Sumitaka Sasaki, Toshikazu Okita, Eiji Sakuma
  • Blind, slat for blinds, and method of producing the same and forming machine therefor
    Patent number: 7069973
    Abstract: To provide a blind slat resistant to bending with keeping good rotation of a slat. The slat (16) is formed with a lift cord passing hole (16a) through which a lift cord passes, and when a length of the lift cord passing hole (16a) in a slat width direction is b, a slat width is a, and a slat crown height is e, 0.59 · e a + 0.19 ? b a ? - 1.41 · e a + 0.70 is satisfied, and the slat (16) is formed with a protrusion (16g), which crosses an extension line (16d) of the lift cord passing hole (16a) and protrudes beyond a general plane (16e) of the slat, the extension line (16d) connecting an edge (16b) of the lift cord passing hole (16a) in the slat width direction and an edge (16c) of the slat (16) in the slat width direction.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: July 4, 2006
    Assignee: Nichibei Co., Ltd.
    Inventors: Sumitaka Sasaki, Toshikazu Okita, Eiji Sakuma
  • Blind, blind slat, manufacturing method of the same, and forming machine of the same
    Publication number: 20050269042
    Abstract: To provide a blind slat resistant to bending with keeping good rotation of a slat. The slat (16) is formed with a lift cord passing hole (16a) through which a lift cord passes, and when a length of the lift cord passing hole (16a) in a slat width direction is b, a slat width is a, and a slat crown height is e, 0.59 · e a + 0.19 ? b a ? - 1.41 · e a + 0.70 is satisfied, and the slat (16) is formed with a protrusion (16g), which crosses an extension line (16d) of the lift cord passing hole (16a) and protrudes beyond a general plane (16e) of the slat, the extension line (16d) connecting an edge (16b) of the lift cord passing hole (16a) in the slat width direction and an edge (16c) of the slat (16) in the slat width direction.
    Type: Application
    Filed: May 25, 2005
    Publication date: December 8, 2005
    Applicant: NICHIBEI CO., LTD.
    Inventors: Sumitaka Sasaki, Toshikazu Okita, Eiji Sakuma
  • Blind, slat for blinds, and method of producing the same and forming machine therefor
    Publication number: 20040089427
    Abstract: To provide a blind slat resistant to bending with keeping good rotation of a slat.
    Type: Application
    Filed: September 22, 2003
    Publication date: May 13, 2004
    Inventors: Sumitaka Sasaki, Toshikazu Okita, Eiji Sakuma