4. Electricity: electrical systems and devices
  5. Safety and protection of systems and devices
  6. Arc suppression at switching point

Takumi Funahashi

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DC Circuit breaker

Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent

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DC Circuit breaker apparatus

Electricity: electrical systems and devices – Safety and protection of systems and devices – Arc suppression at switching point
Patent

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Method for processing vacuum switch and vacuum switch processed

Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent

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Vacuum interrupter

Electricity: circuit makers and breakers – Liquid contact – Time delay
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Profile ID: LFUS-PAI-P-1081951

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