Patents by Inventor Sotoharu Niwata

Sotoharu Niwata 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).

  • Patent number: 5036640
    Abstract: A window comprising: at least a pair of left and right connection attachments for mounting a window frame thereof which are fixedly secured to two mutually adjacent portions of an external wall of a building; at least a pair of left and right pivotable members whose inner ends are pivotally mounted on the connection attachments, respectively, such that they may be swung freely about their respective pivotal axes, and whose outer ends are integrally formed in their respective engaging pieces; at least a pair of left and right engaging members each having an engaging recess formed therein and which opens so as to be detachably engaged with each of the engaging pieces of the pivotable members; and a panel adhesively bonded along at least inner left and right vertical margins thereof onto the outer surfaces of the engaging members, respectively. The window is arranged such that upon mounting the panel, each of the engaging pieces is fitted sufficiently in each of the engaging recesses.
    Type: Grant
    Filed: December 27, 1989
    Date of Patent: August 6, 1991
    Assignee: Yoshida Kogyo K.K.
    Inventors: Sotoharu Niwata, Eiryo Ogami
  • Patent number: 4977717
    Abstract: In a curtain wall comprising a plurality of panel members (4) and panel columns (1), the panel members (4) are connected with the panel columns (1) through the supporting members (16) which are detachably mounted on the panel columns (1) to make it possible to position the panel members (4) along the panel columns (1) in a vertical direction by moving only the supporting members (16) along the panel columns (1) without moving the panel members (4) which are considerably heavy articles, so that the building worker can easily position the panel members (4) along the columns (1) in positioning operation of the panel members (4) without moving the considerably heavy panel members (4), which makes it possible to save considerable amounts of time and labor in mounting operation of the panel members (4) on the building side.
    Type: Grant
    Filed: December 27, 1989
    Date of Patent: December 18, 1990
    Assignee: Yoshida Kogyo K. K.
    Inventor: Sotoharu Niwata