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CPC Subgroup
G03G 13/04

Exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material

Full Title

Electrographic processes using a charge pattern (G03G15/00, G03G16/00, G03G17/00 take precedence) > Exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material

1 direct subcode

Child Classifications

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  • G03G 13/045 Charging or discharging distinct portions of the charge pattern on the recording material, e.g. discharging non-image areas or contrast enhancement (G03G13/34, G03G21/06 take precedence)

Top Applicants

Top 10 applicants by patent filingsfor class G03, 2013–2023, worldwide · Source: EPO PATSTAT

  1. CANON JP 19,215
  2. CANON 12,916
  3. ASML NETHERLANDS NL 10,000
  4. FUJIFILM JP 7,814
  5. SAMSUNG ELECTRONICS COMPANY KR 5,181
  6. CARL ZEISS SMT DE 5,079
  7. RICOH COMPANY JP 4,343
  8. LG INNOTEK COMPANY KR 4,054
  9. KYOCERA DOCUMENT SOLUTIONS 3,812
  10. KYOCERA DOCUMENT SOLUTIONS JP 3,682