He is never named in the manga and is only mentioned as "Enterpriser in NY" in Hana Yori Dango FF.
A version of the enterpriser, named Toyama, is portrayed by Gaku Yamamoto in Hana Yori Dango Returns (2007). In the drama, he is Japanese and the president of an IT company with a new invention. He tries to kill himself since his company is not doing well. Tsukushi saves him and encourages him to continue living. His company later begins to do well and partners with Domyoji Group, which he chooses because their heir is engaged to Tsukushi.