4. Metal working
  5. Method of mechanical manufacture
  6. Electrical device making

Ryoichi Okuyama

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Electric automobile

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Process or means for producing – recycling – or treating...
Reexamination Certificate

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Hydrogen supply system

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Process or means for producing – recycling – or treating...
Reexamination Certificate

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Manufacturing method for solid-electrolyte fuel cell

Metal working – Method of mechanical manufacture – Electrical device making
Patent

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Profile ID: LFUS-PAI-P-802602

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