4. Recording, communication, or information retrieval equipment
  5. Video or audio transmission, recording or playback equipment
  6. Telephone equipment

Mayumi Kurokawa

Inventor

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Data transfer machine for a computer

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent

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Data transfer machine for a computer

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent

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Phase-change optical recording medium

Stock material or miscellaneous articles – Circular sheet or circular blank
Reexamination Certificate

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Profile ID: LFUS-PAI-P-6764

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