Has there ever been a pitcher like Kwak Bin, whose velocity increases every year?

I'm looking at Kwak Bin's stats on Statiz
During his rookie years, his average four-seam fastball was around 145 km/h
His average four-seam velocity has been rising slightly every year, and since last year,
it hasn't dropped below 150 km/h at all. I wonder if there has ever been a growth-type pitcher like this in Korean history.