Shin-Kyu Choi 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).
Abstract: A top which can facilitate the coupling of a winder is provided. The toy top comprises: a blade; a shaft of which one end is fixed to a lower portion of the blade; a pinion to be inserted and coupled to the middle of the shaft; and a shaft holder capable of accommodating the pinion-coupled shaft in a rotating manner, wherein the shaft holder comprises winder connectors (for rotating the pinion. Particularly, the winder connectors comprise: a cut portion for contacting a part of a first portion of a winder on a lateral side; and a guide groove for allowing a second portion extended from the first portion of the winder to be stopped at stepped protrusions inside the cut portion so as to prevent the second portion from being separated from the lateral side when a part of the first portion of the winder is contacted to a lateral side and then the winder is moved to the lateral side.
Abstract: The present invention relates to a top generating a clear collision sound when the top collides with another top so as to make playing with a top more exciting, and having an improved fastening structure for a metal wheel on the top so as to allow the metal wheel to sufficiently vibrate when the top collides.