4. Optical: systems and elements
  5. Lens
  6. Annular zonal correcting

Katsuhiro Koike

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Aspherical objective lens for reading information from...

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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Crystal optic lens and an optical system for an optical pickup d

Optical: systems and elements – Polarization without modulation – By relatively adjustable superimposed or in series polarizers
Patent

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Diffractive optical element, objective lens module, optical...

Optical: systems and elements – Lens – Including a nonspherical surface
Reexamination Certificate

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Lens and production method therefor

Optical: systems and elements – Lens – With support
Reexamination Certificate

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Objective lens

Optical: systems and elements – Lens – Including a nonspherical surface
Patent

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Profile ID: LFUS-PAI-P-704296

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