Patents by Inventor Tadakatsu Hashimoto

Tadakatsu Hashimoto 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).

  • Horizontal type blind
    Patent number: 4327797
    Abstract: A horizontal type blind having a novel mechanism for opening and closing slats which includes a pair of drive shafts juxtaposed in a housing fixed to a head box and adapted to be rotated in the same direction by pulling a slats-opening and closing cord and a pair of rollers connected to the drive shafts respectively and having two straps for holding the slats wound therearound respectively so as to feed either one of the straps while taking up the other according to the rotation of the rollers.
    Type: Grant
    Filed: September 20, 1979
    Date of Patent: May 4, 1982
    Assignee: Kabushiki Kaisha Yokota
    Inventors: Yukihiko Nakajima, Mitsuru Ohkubo, Tadakatsu Hashimoto, Shigeki Nakamura
  • Folding or undrawing means for accordion curtain
    Patent number: 4154280
    Abstract: A folding or undrawing means for an accordion curtain which is pivotally connected to one of vertical frame members provided at the lateral ends of the curtain and comprises a spiral spring urged to pull another frame member in the direction to fold the curtain, a rotatable reel adapted to be urged by the spring and a tape wound around the reel and connected to said another frame member, thereby to facilitate undrawing operation of the curtain and keep the curtain in full undrawn or folded position.
    Type: Grant
    Filed: October 28, 1977
    Date of Patent: May 15, 1979
    Inventor: Tadakatsu Hashimoto