4. Organic compounds -- part of the class 532-570 series
  5. Organic compounds
  6. Heterocyclic carbon compounds containing a hetero ring...

Song-Yeu Tsai

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Dyes for recording layer of the high density optical...

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate

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Optical information recording medium

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

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Super-resolution recordable optical disk

Dynamic optical information storage or retrieval – Optical storage medium structure – Disk protection
Reexamination Certificate

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