Patents by Inventor Tadanobu Nakai

Tadanobu Nakai 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: 4333471
    Abstract: A disc-shaped nipple cover has a flexible paper backing sheet covered with pressure sensitive adhesive and a central soft feld pad. Release paper coverings protect the nipple cover until removal prior to usage.
    Type: Grant
    Filed: January 19, 1981
    Date of Patent: June 8, 1982
    Assignee: Tokiwa Chemical Industries, Limited
    Inventor: Tadanobu Nakai
  • Patent number: 4173092
    Abstract: An animal trap has an elongated hollow box-like housing including side walls, a bottom wall and an end wall and an open end portion; a movable closure member is mounted on a pivot shaft in one end of the housing for pivotal movement between a closed position blocking the open end of the housing and an open position to permit the passage of a rat into the interior of the housing. A latch rod is mounted in slots in the side walls for movement between an unlatching position permitting opening movement of the closure panel and a latching position preventing movement of the closure panel from its closed position so that movement of the closure member to the open position followed by return movement to its closed position by movement of a rat into the housing causes the latch rod to move to its latching position to prevent subsequent opening of the closure member.
    Type: Grant
    Filed: November 14, 1977
    Date of Patent: November 6, 1979
    Assignee: Tokiwa Chemical Industries Limited
    Inventor: Tadanobu Nakai
  • Patent number: 4173093
    Abstract: A first embodiment of a cockroach catching device has a hollow circular housing including a floor portion, has legs supporting the floor portion a spaced distance above a supporting surface and a downwardly facing opening in the center of the floor portion, an inverted conical surface panel extends upwardly from the entrance opening and has an upper edge termination with a downwardly extending wall edge positioned above the upper edge to define an entrance slot of sufficient width to permit a cockroach to pass through the slot to enter said housing. A second embodiment has a rectangular housing with a planar passageway panel and entrance cover panel defining an entrance slot.
    Type: Grant
    Filed: November 14, 1977
    Date of Patent: November 6, 1979
    Assignee: Tokiwa Chemical Industries Limited
    Inventor: Tadanobu Nakai
  • Patent number: D243765
    Type: Grant
    Filed: December 29, 1975
    Date of Patent: March 22, 1977
    Assignee: Tokiwa Chemical Industries, Limited
    Inventor: Tadanobu Nakai
  • Patent number: D257442
    Type: Grant
    Filed: June 14, 1978
    Date of Patent: October 21, 1980
    Assignee: Tokiwa Chemical Industries, Limited
    Inventor: Tadanobu Nakai