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DIFF Main Group
B41J 35/00

Other apparatus or arrangements associated with, or incorporated in, ink-ribbon mechanisms

Introduced: September 1968

IPC and CPC are identically structured here. All 11 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • B41J 35/20 Ink-ribbon shifts, e.g. for exposing print, for case-shift adjustment, for rendering ink ribbon inoperative IPC+CPC Available in IPC and CPC
  • B41J 35/24 Mechanisms specially adapted for feeding impression-transfer materials of foil form IPC+CPC Available in IPC and CPC
  • B41J 35/26 Ink-ribbon shields or backings IPC+CPC Available in IPC and CPC
  • B41J 35/28 Detachable carriers or holders for ink-ribbon mechanisms IPC+CPC Available in IPC and CPC
  • B41J 35/36 Alarms, indicators, or feed disabling devices responsive to ink ribbon breakage or exhaustion IPC+CPC Available in IPC and CPC
  • B41J 35/38 Feeding the ink ribbon to waste after use IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class B41,2013–2023, worldwide · Source: EPO PATSTAT

  1. SEIKO EPSON CORPORATION 14,672
  2. CANON 14,153
  3. RICOH COMPANY 8,049
  4. SEIKO EPSON CORPORATION JP 8,044
  5. HEWLETT-PACKARD DEVELOPMENT COMPANY US 7,312
  6. BROTHER INDUSTRIES 6,887
  7. KYOCERA DOCUMENT SOLUTIONS 5,463
  8. CANON JP 5,001
  9. KONICA MINOLTA CORPORATION 4,512
  10. BROTHER INDUSTRIES JP 3,681

Top Applicants (CPC)

Class B41,2013–2023, worldwide · Source: EPO PATSTAT

  1. SEIKO EPSON CORPORATION 8,446
  2. SEIKO EPSON CORPORATION JP 8,438
  3. HEWLETT-PACKARD DEVELOPMENT COMPANY US 7,828
  4. CANON JP 5,419
  5. CANON 4,156
  6. BROTHER INDUSTRIES JP 3,763
  7. BROTHER INDUSTRIES 2,779
  8. RICOH COMPANY JP 2,717
  9. FUJIFILM JP 2,423
  10. RICOH COMPANY 1,739