There is more than 1 artist called Kota.
1) Kota is a collaboration between Darren Tate and Mike Koglin. On some releases their alias is written as K.O.T.A.. Kota is mostly known for their hit 'Waiting', released in 2003.
2) A progressive psytrance and downtempo project from Japan. With an emphasis on deep, dynamic rhythms and evocative atmospheres. Debut release can be downloaded for free from Ektoplazm