It was Panipak's first competitive outing in the women's 53kg class. She had won the gold medal in the 2020 Summer Olympics in the women's 49kg.
She pipped Spaniard Laura Rodriguez 2-0 with a scores of 8-7 and 2-1.
Her compatriot Phannapa Harnsujin won the silver medal in the women's 57kg competition, losing the final to Hatice İlgün from Turkey 2-3 with scores of 7-3, 2-7, 2-14.
Another Thai, Sasikarn Tongchan, had to settle for the bronze in the women's 62kg class after she lost to Sarah Chaari from Belgium 2-3 with scores of 3-2, 2-6, 2-6.
The competition, which began on April 1, used the “round system” in the best-of-three format.