Names in Japanese have many different spellings, on which the possible meaning they could have is completely dependent. The right romanization for that name is Kotarou, by the way.
Kotaro Shimomura was born in 1861.
Kotaro Suzumura was born in 1944.
Kotaro Koizumi was born in 1978.
Kotaro Tamura was born in 1963.
Kotaro Nagasaki was born in 1953.
Kotaro Honda died in 1954.
Kotaro Oshio was born in 1968.
Kotaro Takamura has written: 'Takamura Kotaro' 'Bi ni tsuite' -- subject(s): Art, Philosophy
Kotaro Omori was born on 1992-04-28.
Kotaro Yanagi was born on 1985-12-21.
Kotaro Yamazaki was born on 1978-10-19.
Kotaro Suzuki was born on 1978-06-18.