Ohto

Ohto Co., Ltd. (オート株式会社, Ōto Kabushiki Gaisha) is a Japanese manufacturing company of writing implements. The company was established in 1919 as a manufacturer of dyes and ink. In 1949, the company became a pen manufacturer after they manufactured the world's first ball point pen with a chrome ball. This was also Japan's first ballpoint pen.

Current products manufactured by Ohto are fountain, rollerball, and gel pens, their refills, and mechanical pencils.