Inventor
ITOH TSUYOSHI
JP14 patents
⚠️ This page may combine multiple inventors who share the name “ITOH TSUYOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ASAHI OPTICAL CO LTD
8 patentsUS5410532AApr 25, 1995
Method for a adjusting a beam splitter in an optical recording and reproducing apparatus
ASAHI OPTICAL CO LTD21 citations92
US5317144AMay 31, 1994
Wave front aberration measuring apparatus having means for adjusting position of collimator lens
ASAHI OPTICAL CO LTD20 citations92
US5223970AJun 29, 1993
Optical axis adjusting mechanism and method for optical information recording and reproducing device, and jig therefor
ASAHI OPTICAL CO LTD35 citations92
US5157459AOct 20, 1992
Wave front aberration measuring apparatus
ASAHI OPTICAL CO LTD31 citations92
US5297114AMar 22, 1994
Magneto-optic recording/reproduction apparatus for minimizing variation in focusing error signals caused by variation in optical source wavelength
ASAHI OPTICAL CO LTD35 citations91
US5373437ADec 13, 1994
Device for and method of reducing cross talk in optical disk device
ASAHI OPTICAL CO LTD11 citations74
US5280464AJan 18, 1994
Optical disk apparatus having a focusing error correcting system
ASAHI OPTICAL CO LTD10 citations74
US5557598ASep 17, 1996
Beam splitter inspection apparatus and method
ASAHI OPTICAL CO LTD4 citations73