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

Akira Izawa

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Projection screen

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

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Projection screen and projection system comprising the same

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

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Rear projection screen

Patent

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Rear projection screen

Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent

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Rotating electric machine and method for manufacturing the same

Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1159543

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