Studio Kajino is a subsidiary of Japanese production company Studio Ghibli. It was created prior to 2000 by Ghibli animator Yoshiyuki Momose to handle live action films for the studio (though it has also produced 3 animated music videos for the J-pop group capsule) which is otherwise known for its animation projects, including the award-winning Spirited Away. Kajino is run by former Ghibli's president Toshio Suzuki, and its first release was Shiki-Jitsu in 2000. In 2001, Studio Kajino co-produced Katsuyuki Motohiro's film Satorare, but was not credited. However, the studio's involvement is acknowledged through an extra feature on the R3 DVD, entitled "Ghibli Studio".
The name of the studio appears to be based on or inspired by Ghibli's postal address (which is or was 1-4-25, Kajino-cho, Koganei-shi, 184 according to the Nausicaa.net fan site, and recently confirmed more specifically at Tokyo 184-0002 on the Asian Films site).