Patents by Inventor Tatsuki KOIWAI

Tatsuki KOIWAI 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).

  • INSIDE DIAMETER ADJUSTABLE FLAT STRAW
    Publication number: 20210093112
    Abstract: An inside diameter adjustable straw flat straw includes a rectangular-shaped main body having front and back surfaces; a first engagement member, which is formed on the front surface of the main body and which is formed in a convex shape being extended from one end of the main body to the opposite end thereof; a second engagement member, which is formed on the back surface, which is formed in a concave shape, and which is formed parallel to the first engagement member; and a third engagement member, which is formed on the back surface, which is formed in a concave shape, and which is formed parallel to the second engagement member at a predetermined distance.
    Type: Application
    Filed: December 11, 2020
    Publication date: April 1, 2021
    Inventors: Yuji KIMURA, Kurumi OISHI, Shuhei KIKUCHI, Syuta ITAGAKI, Haruki GOBARA, Aya KISHIMOTO, Kojiro SHINOZAKI, Tatsuki KOIWAI, Sari IWAO