Inventor
ISHIKAWA TUYOSHI
JP16 patents
⚠️ This page may combine multiple inventors who share the name “ISHIKAWA TUYOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ASAHI OPTICAL CO LTD
12 patentsUS6369886B2Apr 9, 2002
Pattern reading apparatus
ASAHI OPTICAL CO LTD17 citations92
US5539622AJul 23, 1996
Strobe device
ASAHI OPTICAL CO LTD27 citations92
US5772302AJun 30, 1998
Strobe device
ASAHI OPTICAL CO LTD24 citations90
US6179447B1Jan 30, 2001
Strobe light distribution lens and zoom strobe
ASAHI OPTICAL CO LTD19 citations83
US6310689B1Oct 30, 2001
Pattern reading apparatus
ASAHI OPTICAL CO LTD14 citations81
US5727235AMar 10, 1998
Zoom strobe device
ASAHI OPTICAL CO LTD9 citations73
US5680249AOct 21, 1997
Optical system for camera
ASAHI OPTICAL CO LTD5 citations63
US6429937B2Aug 6, 2002
Pattern reading apparatus
ASAHI OPTICAL CO LTD2 citations62
US5946028AAug 31, 1999
Apparatus and method for controlling magnification of image in camera
ASAHI OPTICAL CO LTD5 citations62
US6483591B1Nov 19, 2002
Pattern reading apparatus
ASAHI OPTICAL CO LTD0 citations51
US6476917B2Nov 5, 2002
Pattern reading apparatus
ASAHI OPTICAL CO LTD0 citations51
US6421129B2Jul 16, 2002
Pattern reading apparatus
ASAHI OPTICAL CO LTD0 citations51