CPC Subgroup
G03B 9/08 Shutters
Full Title
Exposure-making shutters; Diaphragms > Shutters
6 direct subcodes
Child Classifications
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- G03B 9/10 Blade or disc rotating or pivoting about axis normal to its plane
- G03B 9/28 Roller blind or flexible plate
- G03B 9/36 Sliding rigid plate
- G03B 9/46 Flap shutters pivoting about axis in plane of flap
- G03B 9/52 Barrel shutters
- G03B 9/54 Conical shutters; Rotating plate with axis of rotation inclined to optical axis of shutter
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