4. Bleaching and dyeing; fluid treatment and chemical modification
  5. Dye or potential dye composition, additive, treatment,...
  6. Azo, acridone, or quinone dye

Polatechno Co., Ltd.

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Azo compound and salt thereof

Organic compounds -- part of the class 532-570 series – Organic compounds – Azo
Reexamination Certificate

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Azo compound and salt thereof, and dye-containing polarizing...

Bleaching and dyeing; fluid treatment and chemical modification – Dye or potential dye composition – additive – treatment,... – Azo – acridone – or quinone dye
Reexamination Certificate

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Azo compounds and dye-type polarizing films or plates...

Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified... – With viewing layer of specified composition
Reexamination Certificate

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Liquid crystal mixed composition and retardation film using...

Compositions – Liquid crystal compositions – Containing pleochroic dye
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Liquid crystalline compound and reterdation difference film...

Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified...
Reexamination Certificate

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