Later, he worked for Hyobusho (the Ministry of War), Nakatsukasasho (the Ministry of Central Affairs), then Shikibusho (the Ministry of Ceremonial) and, in 1204, he was promoted to the rank of Monjohakase (Doctor of Letters) which was successively assumed by the Sugawara clan.
以後、官位は兵部省、中務省、式部省等を経て、元久元年（1204年）には歴代菅原氏が叙任される文章博士に昇進。