4. Radiant energy
  5. Photocells; circuits and apparatus
  6. Optical or pre-photocell system

Minoru Ohyama

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Integrated optical pick-up

Radiant energy – Photocells; circuits and apparatus – Housings
Patent

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Optical device

Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Reexamination Certificate

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Optical device

Optical: systems and elements – Diffraction – From grating
Reexamination Certificate

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Optical device

Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Reexamination Certificate

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Optical device and optical pickup device

Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Reexamination Certificate

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Profile ID: LFUS-PAI-P-220706

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