Patents by Inventor Ryotaro Sato

Ryotaro Sato 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).

  • Drinking learning cup
    Patent number: 6705485
    Abstract: The drinking cup for learning which can train babies in the drinking movement step-by-step in order to provide a baby, who is at the age of taking milk and taking the liquid food, the lessons of the technique for taking either liquids or the liquid food naturally without spilling them. The drinking cup for learning includes a main container 12 for containing liquid, the main container having at least a cup-shaped opening 12a and a drinking spout member 11 removably attached to the main container. The drinking spout member 11 includes an opening communicating with the main container and a top-opened guide means 14 provided with barrier portions 15 forming at least both side edges.
    Type: Grant
    Filed: February 12, 2001
    Date of Patent: March 16, 2004
    Assignee: Pigeon Corporation
    Inventors: Ryotaro Sato, Emi Kuramoto, Hitoshi Takagi
  • Teeth correction toy
    Patent number: D363127
    Type: Grant
    Filed: December 9, 1994
    Date of Patent: October 10, 1995
    Assignee: Pigeon Corporation
    Inventors: Yoichi Nakata, Hiroyuki Uehara, Ryotaro Sato, Michiyo Kajinaga
  • Teeth correction toy
    Patent number: D368965
    Type: Grant
    Filed: November 17, 1994
    Date of Patent: April 16, 1996
    Assignee: Pigeon Corporation
    Inventors: Yoichi Nakata, Hiroyuki Uehara, Ryotaro Sato, Michiyo Kajinaga
  • Teeth correction toy
    Patent number: D371441
    Type: Grant
    Filed: December 7, 1994
    Date of Patent: July 2, 1996
    Assignee: Pigeon Corporation
    Inventors: Yoichi Nakata, Hiroyuki Uehara, Ryotaro Sato, Michiyo Kajinaga