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

Zhijiang Hang

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High-power surface emitting laser and fabrication methods...

Coherent light generators – Particular active media – Semiconductor
Reexamination Certificate

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Monolithic VCSEL-based optical pickup and servo control device

Coherent light generators – Particular active media – Semiconductor
Reexamination Certificate

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Optical confocal device having a common light directing means

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate

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Optical confocal device having a common light directing means

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent

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Optical pickup and servo control system for digital data storage

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

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Profile ID: LFUS-PAI-P-1218461

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