“Mirai” means “future” in Japanese. It is the world’s first hydrogen fuel-cell vehicle. Fuel-cell vehicles, or FCVs, run on electricity generated by combining hydrogen with oxygen, with only water vapor created as byproduct. Although fuel cell cars can gather oxygen from the air, they need to carry highly pressurized hydrogen tanks.
At the Consumer Electronics Show 2015, Toyota announced it would make 5,680 patents related to fuel cell drive systems available free of charge as a means to help other automakers build fuel cell cars and help suppliers open new hydrogen fueling stations. There is currently very little infrastructure to support filling hydrogen tanks around the country.