4. Electrophotography
  5. Internal machine environment

Seongsik Chang

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Apparatus and method for reducing contamination of an image...

Electrophotography – Internal machine environment – Particle or contaminant control
Reexamination Certificate

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Apparatus and method for reducing contamination of an image...

Electrophotography – Internal machine environment
Reexamination Certificate

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Apparatus for charging an image transfer surface

Electrophotography – Image formation – Charging
Reexamination Certificate

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Curved grating spectrometer with very high wavelength...

Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrometer
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Curved grating spectrometer with very high wavelength...

Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrometer
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2953252

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