IPC Main Group
B41J 9/00 Hammer-impression mechanisms
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- Subclass:
- TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
6 direct subcodes
Child Classifications
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- B41J 9/02 Hammers; Arrangements thereof
- B41J 9/14 Means for selecting or suppressing individual hammers
- B41J 9/16 Means for cocking or resetting hammers
- B41J 9/26 Means for operating hammers to effect impression
- B41J 9/42 with anti-rebound arrangements
- B41J 9/44 Control for hammer-impression mechanisms
Top Applicants
Top 10 applicants by patent filingsfor class B41, 2013–2023, worldwide · Source: EPO PATSTAT
- SEIKO EPSON CORPORATION 14,672
- CANON 14,153
- RICOH COMPANY 8,049
- SEIKO EPSON CORPORATION JP 8,044
- HEWLETT-PACKARD DEVELOPMENT COMPANY US 7,312
- BROTHER INDUSTRIES 6,887
- KYOCERA DOCUMENT SOLUTIONS 5,463
- CANON JP 5,001
- KONICA MINOLTA CORPORATION 4,512
- BROTHER INDUSTRIES JP 3,681