CPC Subgroup Additional Only
G03G 2215/021 by contact, friction or induction
Full Title
Apparatus for electrophotographic processes > Arrangements for laying down a uniform charge > by contact, friction or induction
3 direct subcodes
Child Classifications
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- G03G 2215/022 using a magnetic brush
- G03G 2215/023 using a laterally vibrating brush
- G03G 2215/025 using contact charging means having lateral dimensions related to other apparatus means, e.g. photodrum, developing roller
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