Since your question seems to be excluding war prizes (IE ships taken or transferred after hostilities) and limited to capital ships, four Russian ships the Battle of Tsushima under Rear Admiral Nebogatov struck their colors at the end of the battle. These ships, the modern battleship Oryol, the aged battleship Imperator Nikolai I and the coast defense ships General Admiral Graf Apraksin and Admiral Seniavin, were rechristened in the IJN service as Iwami Iki,Okinoshima ,and Mishima respectively. They served out second-line duties in the IJN and saw service during the siege of Tsingtao in the First World War.