CPC Subgroup
G03B 9/10 Blade or disc rotating or pivoting about axis normal to its plane
Full Title
Exposure-making shutters; Diaphragms > Shutters > Blade or disc rotating or pivoting about axis normal to its plane
6 direct subcodes
Child Classifications
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- G03B 9/12 Two relatively-adjustable aperture-defining members moving as a unit
- G03B 9/14 Two separate members moving in opposite directions
- G03B 9/16 Two separate members moving in the same direction
- G03B 9/18 More than two members
- G03B 9/24 Adjusting size of aperture formed by members when fully open so as to constitute a virtual diaphragm that is adjustable
- G03B 9/26 incorporating cover blade or blades
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