When Did Tak Kubota Die?

Takayuki Kubota , also known as Tak Kubota, was a Japanese and American karateka, known for founding the Gosoku-ryu style of karate. He held the title of sōke (grandmaster) for his development of the Gosoku-ryū, and was the founder and president of the International Karate Association. He was also the inventor and holder of the trademark of the Kubotan self-defense key chain.