Kashio
From Pokemon Fusion Wiki
An electronics company founded and based in Kasei. Kashio Electronics manufactures a range of products but has always specialized in Pokedexes and other training accessories.
Their extensive products became very popular a few decades ago and many of these are now considered collector's items. Kashio digital pokedexes were renowned for their innovative multi-functionality in all form factors from suitcase to wristwatch.
Kashio still produces a number of Z-Shock pokedexes, built specifically for Fusions and able to withstand the rigours of elemental battle.