Thinking Rabbit

Thinking Rabbit (有限会社シンキングラビット, Yūgen gaisha Shinkingurabitto) was a software house based in Takarazuka, Japan, best known for being the original publishers of Sokoban. Falcon, a company which former president Hiroyuki Imabayashi is currently involved in, owns the trademark and copyright to Thinking Rabbit's work.

Source: IGDB