sentences:  In 1990, Nakamura resigned as president of Namco, passing it on to Masanabe Manabe and assume his role as the company chairman.Manabe resigned in 1992 due to health problems, leading to Nakamura returning as his role of president until 2002.Nakamura became chairman of the Japan Amusement Machine Association (JAMMA), and lead Namco to begin construction and maintenance of large-scale amusement parks across Japan, such as Wonder Eggs in Tokyo and Namja Town in Sunshine City.