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PCE
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DIFF Subgroup
G03G 15/30

in which projection is formed on a drum

Introduced: July 1974

Full Title

Full titles differ between systems:

IPC:

Apparatus for electrographic processes using a charge pattern > involving the combination of more than one step according to groups > in which projection is obtained by line scanning > in which projection is formed on a drum

CPC:

Apparatus for electrographic processes using a charge pattern (G03G16/00, G03G17/00 take precedence) > involving the combination of more than one step according to groups G03G13/02 - G03G13/20 (G03G15/01 takes precedence) > in which projection is obtained by line scanning (G03G15/04 takes precedence) > in which projection is formed on a drum

Of 3 combined children, 0 exist in both systems.

3 codes are CPC-only extensions.

Child Classifications

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Top Applicants

Top Applicants (IPC)

Class G03,2013–2023, worldwide · Source: EPO PATSTAT

  1. CANON 31,416
  2. CANON JP 17,469
  3. KYOCERA DOCUMENT SOLUTIONS 9,845
  4. RICOH COMPANY 9,807
  5. ASML NETHERLANDS NL 9,427
  6. FUJIFILM JP 7,225
  7. KONICA MINOLTA CORPORATION 7,216
  8. FUJI XEROX COMPANY 5,711
  9. CARL ZEISS SMT DE 4,971
  10. RICOH COMPANY JP 4,123

Top Applicants (CPC)

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