Question: Facts:   - native name lang: ja    - native name: 小山 茉美    - yearsactive: 1974-present      - birth date: 17 january 1955    - name: mami koyama    - birth place: nishio , aichi , japan    - occupation: voice actress   Based on these bullet points, write a short biography describing the life of mami koyama .
Answer:
is a japanese voice actress affiliated with aoni production .her best-known voice roles include arale norimaki in `` dr. slump '' , minky momo in `` magical princess minky momo '' , lunch in `` dragon ball '' , korosuke in `` kiteretsu daihyakka '' and ryoko mendou in `` urusei yatsura '' .some of her notable roles in the 1990s and 2000s anime include balalika in `` black lagoon '' , talia gladys in `` gundam seed '' , eva heinemann in `` monster '' , and yōko itoigawa in `` hyōka '' .in feature films , she voiced kei in `` akira '' , and the adult chiyoko fujiwara in `` millennium actress '' .