Dynabook Inc.

Dynabook Inc. (Dynabook株式会社, Dainabukku Kabushiki-gaisha), stylized dynabook, is a Japanese personal computer manufacturer based in Kōtō, Tokyo, owned by Sharp Corporation; it was previously part of, and branded overseas as, Toshiba, until 2018. The Dynabook name had already been used by Toshiba in the Japanese market since 1989 for laptop products.

Under Toshiba, it notably launched the Toshiba T1100 in 1985, cited as the first ever commercial laptop PC. The company was a major manufacturer of PCs until a decline in fortunes led to Toshiba selling the business to Sharp in 2018, with new products since rebranded to Dynabook worldwide.