4. Optical: systems and elements
  5. Holographic system or element
  6. Using a hologram as an optical element

Ricoh Company, Inc.

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Apparatus for converting optical information into electrical inf

Static information storage and retrieval – Radiant energy – Photoconductive
Patent

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Image forming apparatus, authentication method, and...

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Central trusted authority provides computer authentication
Reexamination Certificate

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Image-data transmitter having function of automatic segmented im

Facsimile and static presentation processing – Facsimile – Auxiliary signal
Patent

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Information recording apparatus for controlling recording...

Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Mechanism control by the control signal
Reexamination Certificate

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Optical module and imaging device

Television – Camera – system and detail – Optics
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Profile ID: LFUS-PAI-P-157475

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