4. Optics: image projectors
  5. Polarizer or interference filter

Takeshi Utagawa

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Compensation element adjustment mechanism and projector

Optics: image projectors – Polarizer or interference filter
Reexamination Certificate

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Lamp for projector

Photography and optical equipment – Projector or viewer
Design Patent

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Projector

Optics: image projectors – Temperature control – Blower
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2298766

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