Inventor
IWANADE HISAO
JP20 patents
Patents
20 patentsUS6055378AApr 25, 2000
Motor-driven auto-focusing system
ASAHI OPTICAL CO LTD27 citations92
US4557593ADec 10, 1985
Focus and magnification determining and control device for variable magnification type copying machine
ASAHI OPTICAL CO LTD31 citations92
US4446526AMay 1, 1984
Control circuit for zooming device
ASAHI OPTICAL CO LTD47 citations92
US6122112ASep 19, 2000
Lens position adjusting method for zoom lens
ASAHI OPTICAL CO LTD16 citations84
US5966550AOct 12, 1999
Automatic focusing apparatus in a camera
ASAHI OPTICAL CO LTD19 citations84
US4436416AMar 13, 1984
Mirror scanning control mechanism in variable magnification type copying machine
ASAHI OPTICAL CO LTD22 citations82
US4412737ANov 1, 1983
Position detecting device for a zoom lens of a copying machine
ASAHI OPTICAL CO LTD24 citations82
US6040677AMar 21, 2000
Apparatus for driving stepper motor of camera
ASAHI OPTICAL CO LTD13 citations74
US6014523AJan 11, 2000
Time-sharing drive apparatus for motor of camera
ASAHI OPTICAL CO LTD10 citations74
US5886830AMar 23, 1999
Drive apparatus for zoom lens barrel
ASAHI OPTICAL CO LTD13 citations74
US4420248ADec 13, 1983
Variable magnification copying device
ASAHI OPTICAL CO LTD15 citations74
USRE36632EMar 28, 2000
Automatic original feeding device
ASAHI OPTICAL CO LTD6 citations73
US5194970AMar 16, 1993
Automatic original feeding device
ASAHI OPTICAL CO LTD11 citations73
US6051949AApr 18, 2000
Apparatus for driving stepping motor of camera
ASAHI OPTICAL CO LTD6 citations63
US5940223AAug 17, 1999
Drive apparatus for zoom lens barrel
ASAHI OPTICAL CO LTD5 citations63
US5930053AJul 27, 1999
Drive apparatus for zoom lens barrel
ASAHI OPTICAL CO LTD3 citations63
US5926324AJul 20, 1999
Motor driven diaphragm apparatus for lens barrel
ASAHI OPTICAL CO LTD6 citations63
US5886831AMar 23, 1999
Drive apparatus for zoom lens barrel
ASAHI OPTICAL CO LTD3 citations63
US5860031AJan 12, 1999
Zoom electronic camera
ASAHI OPTICAL CO LTD4 citations63
US4868835ASep 19, 1989
Energy modulatable laser unit
ASAHI OPTICAL CO LTD5 citations62