4. Optical: systems and elements
  5. Projection screen
  6. Unitary sheet comprising plural refracting areas

Kuniko Kojima

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Fresnel lens sheet, light-transmission screen, and...

Optical: systems and elements – Projection screen – Unitary sheet comprising plural refracting areas
Reexamination Certificate

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Fresnel lens, screen, image display device, lens mold...

Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Including step of mold making
Reexamination Certificate

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Fresnel lens, screen, image displaying device, lens forming...

Optical: systems and elements – Projection screen – Unitary sheet comprising plural refracting areas
Reexamination Certificate

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Illumination optical system with reflecting light valve

Optics: image projectors – Reflector
Reexamination Certificate

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Transparent screen and projection display apparatus

Optical: systems and elements – Projection screen – Unitary sheet comprising plural refracting areas
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Profile ID: LFUS-PAI-P-2162539

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