The cast of Precious Stone - 2013 includes: Kazuki Furuta Kenya Osumi Shohei Wada

Genkei Masamune has written:

'Floristic and geobotanical studies on the island of Yakusima, province Osumi' -- subject(s): Botany, Phytogeography

The cast of Nihiki no yojimbo - 1968 includes: Miyoko Akaza as Otsu Hiroko Hasegawa as Osumi Miwa Takada as Oshodomo

The cast of Lost in China - 2011 includes: Jia Doughman as Hua Robert Factor as Beijing Bobby Katie Osumi as Li

The game credits list three names under Sound Designers. They are:

Hidenori Shoji, Haruyoshi Tomita and Sakae Osumi

Hope that helps! :)