Seiichi Nagai

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Integrated semiconductor light generating and detecting device

Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – In combination with or also constituting light responsive...
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Magnetic recording and reproducing device having a driving rolle

Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Tape record
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Magnetic recording/reproducing apparatus

Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Tape record
Reexamination Certificate

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Process of producing semiconductor planar device

Metal treatment – Process of modifying or maintaining internal physical... – Chemical-heat removing or burning of metal
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Rotary head type magnetic recording/reproducing unit

Dynamic magnetic information storage or retrieval – General recording or reproducing – Signal switching
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Profile ID: LFUS-PAI-P-453393

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