CPC Subgroup Additional Only
G03G 2215/0636 Specific type of dry developer device
Full Title
Apparatus for electrophotographic processes > Developing structures, details > Developing device > Specific type of dry developer device
6 direct subcodes
Child Classifications
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- G03G 2215/0639 Without donor member (i.e. developing housing slides on latent image-carrying member)
- G03G 2215/0641 Without separate supplying member (i.e. with developing housing sliding on donor member)
- G03G 2215/0643 Electrodes in developing area, e.g. wires, not belonging to the main donor part
- G03G 2215/0648 Two or more donor members
- G03G 2215/0651 Electrodes in donor member surface
- G03G 2215/0656 Fixed electrodes behind moving donor member surface
Top Applicants
Top 10 applicants by patent filingsfor class G03, 2013–2023, worldwide · Source: EPO PATSTAT
- CANON JP 19,215
- CANON 12,916
- ASML NETHERLANDS NL 10,000
- FUJIFILM JP 7,814
- SAMSUNG ELECTRONICS COMPANY KR 5,181
- CARL ZEISS SMT DE 5,079
- RICOH COMPANY JP 4,343
- LG INNOTEK COMPANY KR 4,054
- KYOCERA DOCUMENT SOLUTIONS 3,812
- KYOCERA DOCUMENT SOLUTIONS JP 3,682