CPC Subgroup
G03G 5/04 Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
Full Title
Recording-members for original recording by exposure, e.g. to light, to heat or to electrons; Manufacture thereof; Selection of materials therefor > Charge-receiving layers (G03G5/153 takes precedence) > Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
5 direct subcodes
Child Classifications
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- G03G 5/043 Photoconductive layers characterised by having two or more layers or characterised by their composite structure
- G03G 5/05 Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers
- G03G 5/06 characterised by the photoconductive material being organic
- G03G 5/08 characterised by the photoconductive material being inorganic
- G03G 5/09 Sensitisors or activators, e.g. dyestuffs (G03G5/12 takes precedence)
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