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

Akihito Nakayama

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Apparatus and method for measuring characteristics of optical pi

Optics: measuring and testing – Focal position of light source
Patent

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Apparatus and method for measuring characteristics of...

Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
Reexamination Certificate

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Apparatus and method for measuring focusing characteristics...

Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Reexamination Certificate

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Apparatus for measuring characteristics of optical disc...

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

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Camera lens barrel having both pulse drive control and microstep

Optical: systems and elements – Prism – With reflecting surface
Patent

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Profile ID: LFUS-PAI-P-181643

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