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

Ikkan Nishihara

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Apparatus and method for detecting transparent substances

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent

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Apparatus and method for detecting transparent substances

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reissue Patent

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Apparatus and method for judging plastic

Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Reexamination Certificate

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Indicator device and illumination device

Illumination – Light source or light source support and luminescent material
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1395722

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