What is "kuroiwa"

Kuroiwa is a Japanese family name meaning 'black stone'. Notable people with the surname include:

• Akira Kuroiwa (born 1961), a Japanese ice speed skater

• Hisami Kuroiwa, Japanese film producer
• Mamoru Kuroiwa (born 1962), a Japanese Olympic boxer
• Shuroku Kuroiwa, also known as Ruikō Kuroiwa, a Japanese journalist and novelist
• Toshio Kuroiwa, a Japanese military pilot who was stationed on Japanese aircraft carrier Kaga
• Toshiyuki Kuroiwa (born 1969), a Japanese ice speed skater
• Yoshihiro Kuroiwa, a manga artist on Zenki

Fictional characters:

• Geki Kuroiwa, a character in the Japanese anime series Brave Command Dagwon