The company raised prices by up to 4.7% for some of its steel products including its main H-shaped beams in August to reflect a tight market situation.
Prices for pickled and oiled sheets -- hot rolled steel is pickled in acid to remove the mill scale and then oiled to keep it from rusting -- will increase by 3,000 yen ($27) a tonne to 12,6000 yen ($1,153) a tonne next month.
"Inventories of sheet products remain low, with shortages seen in some products," Tokyo Steel said in a statement.
"We anticipate increased production activity in the automobile, industrial machinery, shipbuilding and other manufacturing industries in October-March period, and we expect the market will stay tight," it said.
Tokyo Steel's pricing is closely watched by Asian rivals such as South Korea's Posco and Hyundai Steel , and China's Baoshan Iron & Steel Co Ltd (Baosteel).
($1 = 109.3000 yen)
(Reporting by Yuka Obayashi; Editing by Jacqueline Wong)