4. Electricity: motive power systems
  5. Motor structure adjustment or control
  6. Brush or other current-collector control

Takahisa Shimada

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Apparatus for retracting a photo-taking lens

Patent

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Camera having an automatic film loading mechanism

Photography – With film drive – Having significant electronic circuit detail
Patent

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Camera having an automatic film loading mechanism

Patent

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DC motor and controlling system therefor

Electricity: motive power systems – Motor structure adjustment or control – Brush or other current-collector control
Patent

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DC motor and controlling system therefor

Electricity: motor control systems – Open loop speed control system for dc motor with commutator – Field control – or field and armature control
Patent

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Profile ID: LFUS-PAI-P-93291

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