CPC Subgroup Additional Only
B41J 2202/01 Embodiments of or processes related to ink-jet heads
Full Title
Embodiments of or processes related to ink-jet or thermal heads > Embodiments of or processes related to ink-jet heads
21 direct subcodes
Child Classifications
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- B41J 2202/02 Air-assisted ejection
- B41J 2202/03 Specific materials used
- B41J 2202/04 Heads using conductive ink
- B41J 2202/05 Heads having a valve
- B41J 2202/06 Heads merging droplets coming from the same nozzle
- B41J 2202/07 dealing with air bubbles
- B41J 2202/08 dealing with thermal variations, e.g. cooling
- B41J 2202/09 Ink jet technology used for manufacturing optical filters
- B41J 2202/10 Finger type piezoelectric elements
- B41J 2202/11 characterised by specific geometrical characteristics
- B41J 2202/12 with ink circulating through the whole print head
- B41J 2202/13 Heads having an integrated circuit
- B41J 2202/14 Mounting head into the printer
- B41J 2202/15 Moving nozzle or nozzle plate
- B41J 2202/16 Nozzle heaters
- B41J 2202/17 Readable information on the head
- B41J 2202/18 Electrical connection established using vias
- B41J 2202/19 Assembling head units
- B41J 2202/20 Modules
- B41J 2202/21 Line printing
Top Applicants
Top 10 applicants by patent filingsfor class B41, 2013–2023, worldwide · Source: EPO PATSTAT
- SEIKO EPSON CORPORATION 8,446
- SEIKO EPSON CORPORATION JP 8,438
- HEWLETT-PACKARD DEVELOPMENT COMPANY US 7,828
- CANON JP 5,419
- CANON 4,156
- BROTHER INDUSTRIES JP 3,763
- BROTHER INDUSTRIES 2,779
- RICOH COMPANY JP 2,717
- FUJIFILM JP 2,423
- RICOH COMPANY 1,739