Takahiro Hayashi, co-founder and chief executive officer of Heroz Inc., poses for a photograph in Tokyo, Japan, on Thursday, June 28, 2018. In April, Heroz listed on a startup market on the Tokyo Stock Exchange. The shares opened 11 times higher than the IPO price, the best ever start of trading by a Japanese listed company. Photographer: Kentaro Takahashi/Bloomberg
Takahiro Hayashi, co-founder and chief executive officer of Heroz Inc., poses for a photograph in Tokyo, Japan, on Thursday, June 28, 2018. In April, Heroz listed on a startup market on the Tokyo StocShow more

With Heroz, Japanese chess champion Hayashi proves to be tech start-up master