Ohto
 | |
| Formerly | Nakata-Ohka-do (1919–49) Auto (1949–74) Ohto (1974–present) |
|---|---|
| Type | Limited |
| Industry | Writing instruments |
| Founded | 1919 |
| Founder | Nakata Touzaburo |
| Headquarters | |
| Products | Fountain, rollerball, and gel pens, refills, and mechanical pencils |
| Website | ohto.co.jp |
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.