Joint research by Trana, an operator of educational toy subschools, and the Makiko Nakamuro Laboratory at Keio University. Examining the effects of using educational toys on children's growth and development.
- The following is from a press release - Rike Corporation (Tokyo headquarters: Shibuya-ku, Tokyo; Chairman and President: Yasuhiko Okamoto; hereafter "Rike"), a company that operates childcare, human resources, and nursing care businesses, is a subsidiary of ...