using heads controlled by an electric information signal

Full Title

Forme preparation > Engraving; Heads therefor (recording on record carriers, heads therefor G11B) > using heads controlled by an electric information signal

2 direct subcodes

Child Classifications

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B41C 1/045 Mechanical engraving heads
B41C 1/05 Heat-generating engraving heads, e.g. laser beam, electron beam

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