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US 7,598,999 B2Granted
Electronic device powered by fuel cell and power supply system using fuel cell
AssigneeCanon Kabushiki Kaisha
InventorsGo Tokura, Hiroshi Kikuchi
Life of this patent
Estimating the term…
Abstract
An electronic device powered by a fuel cell and a power supply system using a fuel cell include a first generating cell supplied with fuel directly from a fuel tank and a second generating cell supplied with fuel through the first generating cell. The second generating cell has a capacity different from the capacity of the first generating cell.
Claims19
An electronic device comprising:
- a first electricity generating fuel cell configured to be supplied with fuel from a fuel tank;
- and
- a second electricity generating fuel cell configured to be supplied with fuel from the first electricity generating fuel cell, the fuel being not directly supplied from the fuel tank to the second electricity generating fuel cell which has a power generation capacity different from the first electricity generating fuel cell.
A power supply system for an electronic device comprising:
- a fuel tank;
- a first electricity generating fuel cell configured to be supplied with fuel from the fuel tank;
- and
- a second electricity generating fuel cell configured to be supplied with fuel from the first electricity generating fuel cell, the fuel being not directly supplied from the fuel tank to the second electricity generating fuel cell which has a power generation capacity different from the power generation capacity of the first electricity generating fuel cell.
1 more element
A camera comprising:
- a camera body;
- a fuel tank;
- a first electricity generating fuel cell configured to be supplied with fuel from the fuel tank;
- and
- a second electricity generating fuel cell configured to be supplied with fuel from the first electricity generating fuel cell, the fuel being not directly supplied from the fuel tank to the second electricity generating fuel cell which has a power generation capacity different from the first electricity generating fuel cell.
2 more elements
Dependencies are inferred from the claim text.