There's been some interesting interviews with Japanese developers posted at shmuplations.com recently. Most of these are from the '90s -- interview with
SFII director/designer Akira Nishitani (
http://shmuplations.com/streetfighterii/), Taito's
Gun Frontier designer/planner Takatsuna Senba (
http://shmuplations.com/gunfrontier2/), Data East round table interview touching on
Karnov (
http://shmuplations.com/dataeast/), tiny piece on
Star Fox with Shigeru Miyamoto (
http://shmuplations.com/starfox/), and a 1985 interview with Yukio Kaneoka who created the
Jr. game music (
http://shmuplations.com/kaneoka/).