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Class Information
Number: 396/464
Name: Photography > Camera detail > Shutter > Dynamo-electric actuator > Having planar coil
Description: Subject matter wherein the windings of the electromagnet lie in a single plane.


Patents under this class:

Patent Number Title Of Patent Date Issued
7544003 Driving assembly of camera shutter and diaphragm Jun. 9, 2009
7367722 Front and rear curtain shutter device with start area May. 6, 2008
7242123 Actuator, light quantity adjusting apparatus, and stepping motor Jul. 10, 2007
7182530 Electrode shutter device with start area Feb. 27, 2007
6800970 Motor and optical apparatus using the same Oct. 5, 2004
6394668 Shutter for camera May. 28, 2002
6382848 Shutter for camera May. 7, 2002
6033131 Hybrid silicon-based micro-electromagnetic light shutter Mar. 7, 2000
5881449 Method of making a microceramic electromagnetic light shutter Mar. 16, 1999
5708893 Microceramic electromagnetic light shutter Jan. 13, 1998
4724452 Shutter Feb. 9, 1988
4671638 Moving coil electromagnetic actuator and shutter employing same Jun. 9, 1987
4650307 Electromagnetic actuator Mar. 17, 1987
4623233 Electromagnetically driven shutter device Nov. 18, 1986
4621916 Magnetic positioning and contouring of a blade mechanism Nov. 11, 1986
4558938 Twin rotatable electromagnetically driven blade mechanism Dec. 17, 1985
4558937 Electromagnetic blade mechanism Dec. 17, 1985
4531820 Electromagnetic actuator generating equal and opposing force vectors Jul. 30, 1985
4514064 Electromagnetic shutter Apr. 30, 1985
4497557 Electromagnetic shutter mechanism Feb. 5, 1985
4487493 Electromagnetically driven shutter Dec. 11, 1984
4415252 Electromagnetically operated shutter Nov. 15, 1983
4413895 Electromagnetic actuator having a compliant armature Nov. 8, 1983
4349264 Electromagnetically driven shutter Sep. 14, 1982
4348094 Rotor of electromagnetically driven device for exposure control Sep. 7, 1982
4324471 Electromagnetic drive device for camera Apr. 13, 1982
4319822 Electromagnetically operated shutter Mar. 16, 1982
4079400 Optical blade drive apparatus Mar. 14, 1978
4051499 Linear motor-driven focal plane shutter Sep. 27, 1977
4024552 Electromagnetically driven optical blade May. 17, 1977
3987473 Electromagnetic focal plane shutter Oct. 19, 1976



 
 
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