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CPC Subgroup
B41J 33/51

and characterised by the use of particular reversing control means

Full Title

Apparatus or arrangements for feeding ink ribbons or like character-size impression-transfer material > Ribbon-feed devices or mechanisms > with arrangements for reversing the feed direction > automatically > and characterised by the use of particular reversing control means

4 direct subcodes

Child Classifications

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  • B41J 33/512 using a pivoted reversing-feeler engaging the external periphery of the wound ribbon
  • B41J 33/514 using a pivoted reversing-feeler engaging the interior of the wound ribbon
  • B41J 33/516 using a reversing-feeler responsive to the tension of the ribbon
  • B41J 33/518 the reversing-feeler engaging buttons or the like secured to the ribbon near its ends

Top Applicants

Top 10 applicants by patent filingsfor 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