Pencil manufacturers

(stylized as uniball) and are brands of pens and pencils, made by the of Japan. The brand was introduced in 1979 as a rollerball pen model, then expanding to the rest of Mitsubishi Pencil products.

is a private Japanese manufacturing company of stationery products. The company was founded in 1913 as Messrs "Tombow" and has since grown into an international business. Based in Tokyo with 397 employees.