4. Coherent light generators
  5. Particular active media
  6. Semiconductor

Osamu Hamaoka

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Optical pickup apparatus

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 pickup system with light receiving portion

Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
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Semiconductor laser device

Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – In combination with or also constituting light responsive...
Reexamination Certificate

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Semiconductor laser device and optical pickup device

Coherent light generators – Particular active media – Semiconductor
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Semiconductor laser device, fabricating method thereof and...

Coherent light generators – Particular active media – Semiconductor
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Profile ID: LFUS-PAI-P-2687801

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