4. Telecommunications
  5. Radiotelephone system
  6. Message storage or retrieval

Osamu Otsuka

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Management apparatus, management system, management method,...

Telecommunications – Radiotelephone system – Message storage or retrieval
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Semiconductor device

Electricity: motive power systems – Induction motor systems – Primary circuit control
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Semiconductor device and power conversion apparatus using...

Electric power conversion systems – Current conversion – Using semiconductor-type converter
Reexamination Certificate

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Profile ID: LFUS-PAI-P-3007013

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