4. Dynamic information storage or retrieval
  5. With servo positioning of transducer assembly over track...
  6. Optical servo system

Isao Ohbu

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Heterojunction bipolar transistor and method for...

Active solid-state devices (e.g. – transistors – solid-state diode – Regenerative type switching device – Having at least four external electrodes
Reexamination Certificate

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Heterojunction bipolar transistor and method for...

Active solid-state devices (e.g. – transistors – solid-state diode – Heterojunction device – Heterojunction formed between semiconductor materials which...
Reexamination Certificate

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High-frequency power amplifier

Amplifiers – With control of power supply or bias voltage – With control of input electrode or gain control electrode bias
Reexamination Certificate

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High-frequency power amplifier

Amplifiers – With control of power supply or bias voltage – With control of input electrode or gain control electrode bias
Reexamination Certificate

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Optical head incorporating refractive index distribution changea

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

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Profile ID: LFUS-PAI-P-983211

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