CPC Subgroup Additional Only
G03G 2215/00029 Image density detection
Full Title
Apparatus for electrophotographic processes > Machine control, e.g. regulating different parts of the machine > Image density detection
4 direct subcodes
Child Classifications
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- G03G 2215/00033 on recording member
- G03G 2215/00059 on intermediate image carrying member, e.g. transfer belt
- G03G 2215/00063 Colour
- G03G 2215/00067 on recording medium
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