Sang W Kwak

US Patent:

20120115393, May 10, 2012

Filed:

Oct 10, 2011

Appl. No.:

13/270178

Inventors:

Richelle Moh - Redondo Beach CA, US
Garrett Sander - Los Angeles CA, US
Ivy Bleser - Santa Monica CA, US
David Sheltman - Rancho Palos Verdes CA, US
Sang Kwak - La Habra CA, US
Elena Velasquez - Los Angeles CA, US

International Classification:

A63H 29/00
A63H 17/00

US Classification:

446429, 446444

Abstract:

A play set configured for use with an item removably secured to a base item having a plurality of wheels and a ferromagnetic material disposed therein is disclosed herein, the play set having: a plurality of launchers each being configured to launch the item and the base item along one of a plurality of track segments, wherein each of the track segments terminate at a central area; and at least one magnet disposed in the central area, wherein the base item is attracted to the at least one magnet when it reaches the central area after traversing along one of the plurality of track segments.

US Patent:

20140070015, Mar 13, 2014

Filed:

Sep 12, 2013

Appl. No.:

14/025230

Inventors:

Robert William Matthes - Long Beach CA, US
Stacy Lynn O'Connor - El Segundo CA, US
Sang Joon Kwak - La Habra CA, US

International Classification:

A63H 18/06

US Classification:

238 10 A

Abstract:

A toy vehicle track set is provided including a pair of arm members including a first arm member and a second arm member. The pair of arm member are movably mounted to the track set for movement between a first position and a second position. A toy vehicle carriage is pivotally mounted at a distal end of each of the pair of arm members. Each of the pair of arm members is coupled to one another such that as one of the arm members moves from its first position to its second position, the other of the arm members also moves from its first position to its second position.

US Patent:

20160263488, Sep 15, 2016

Filed:

May 20, 2016

Appl. No.:

15/160490

Inventors:

- El Segundo CA, US
Stacy Lynn O'Connor - El Segundo CA, US
Sang Joon Kwak - La Habra CA, US

Assignee:

Mattel, Inc. - El Segundo CA

International Classification:

A63H 18/08
A63H 18/02

Abstract:

Elevator-type systems for a toy vehicle and toy vehicle track sets are disclosed. The elevator-type system may include a carriage configured to receive a toy vehicle, the carriage is configured to move between a first position and a second position. The elevator-type system may additionally include a tension rope having a first end and a second end, the first end is attached to the carriage. The elevator-type system may further include a counterweight attached to the second end. The weight of the counterweight may be greater than the weight of the carriage to bias the carriage toward the first position. The weight of the counterweight may be less than the weight of both the carriage and a toy vehicle received in the carriage to allow the carriage to move toward the second position when the toy vehicle is received in the carriage.

US Patent:

20140097263, Apr 10, 2014

Filed:

Oct 4, 2013

Appl. No.:

14/045911

Inventors:

Eric C. Ostendorff - Torrance CA, US
Sang Joon Kwak - La Habra CA, US

International Classification:

A63H 18/02
A63H 18/04

US Classification:

238 10 A

Abstract:

A toy vehicle track set is provided including a first track portion and a second track portion. The second track portion is distal from the first track portion. The first track portion and the second track portion define a gap therebetween. The toy vehicle track set also includes a pair of separately rotating arms. The rotating arms cooperate to transfer a toy vehicle across the gap from the first track portion to the second track portion. When the toy vehicle is released at the second track portion, the toy vehicle may traverse along a path of the track set from the second track portion to the first track portion.

US Patent:

20140099860, Apr 10, 2014

Filed:

Sep 27, 2013

Appl. No.:

14/039946

Inventors:

Michael W. Nuttall - South Pasadena CA, US
Sang Joon Kwak - La Habra CA, US

International Classification:

A63H 18/16
A63H 18/00
A63H 18/04

US Classification:

446444

Abstract:

A track set is provided, the track set having: a toy vehicle; a toy airplane; a launcher for launching the toy airplane; a trigger mechanism coupled to the launcher, wherein the trigger mechanism is located in a portion of a track path of the track set; and wherein actuation of the trigger mechanism by the toy vehicle as it travels along the track path launches the toy airplane from the launcher towards an indicator mechanism configured to be contacted by the toy vehicle traveling along the track path and the toy airplane after it has been launched from the launcher.