Yes, Jay Hyon did invent Chong Bong 1 through 7.
Hee Sang Ro developed the other weapons forms 8-10.
Karate Center is the old name of World Martial Arts Center, which is in the same location.
After watching the U-Tube video I think it is Cong Bong 1 and not 2. Chong Bong 2 has an initial portion that moves along the horizontal axis.