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Toyota's Mirai hydrogen fuel cell vehicle on show at CES 2015 in Las Vegas on January 5, 2015
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Scientist Michio Kaku presents Toyota's hydrogen fuel cell vehicle, the Mirai, at CES 2015 in Las Vegas on January 5, 2015
Hydrogen-powered cars get a boost with Toyota's patent portfolio
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Toyota's fuel-cell patent offer could kick-start a new era in the auto industry