4. Synthetic resins or natural rubbers -- part of the class 520 ser
  5. Synthetic resins
  6. From phenol, phenol ether, or inorganic phenolate

Yoshihiro Kumagai

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Circular polarizer and liquid crystal display

Liquid crystal cells – elements and systems – Liquid crystal optical element – Passive liquid crystal polarizer
Reexamination Certificate

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Complex diffraction device

Liquid crystal cells – elements and systems – Liquid crystal optical element – Liquid crystal diffraction element
Reexamination Certificate

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Laminated transparent structure for reflective display

Optical: systems and elements – Single channel simultaneously to or from plural channels
Reexamination Certificate

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Lenticular lens sheet

Optical: systems and elements – Single channel simultaneously to or from plural channels – By surface composed of lenticular elements
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Liquid crystal cell with twist angle from 180 to 270 degrees...

Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate

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Profile ID: LFUS-PAI-P-733781

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