He co-founded Digital Garage, a technology and fintech company, alongside Joi Ito.
Hayashi graduated from Toyo University, majoring in Mass Communication.
[1] In 1995, he and Joi Ito co-founded Digital Garage, a technology and fintech company.
[2][3][4] Hayashi became the chairman and director of Kakaku.com after the company was acquired by Digital Garage in 2002.
[5][6][7][8] He serves on the boards of Monex Group, VeriTrans and Credit Saison.