Inventor
KASE TOSHIYUKI
JP23 patents
⚠️ This page may combine multiple inventors who share the name “KASE TOSHIYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ASAHI OPTICAL CO LTD
20 patentsUS5553052ASep 3, 1996
Inclination of an objective lens in an optical information system
ASAHI OPTICAL CO LTD55 citations95
US5317144AMay 31, 1994
Wave front aberration measuring apparatus having means for adjusting position of collimator lens
ASAHI OPTICAL CO LTD20 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
US6018393AJan 25, 2000
Evaluating system for a dual focus lens
ASAHI OPTICAL CO LTD18 citations84
US6411588B1Jun 25, 2002
Optical data recording/reproducing device
ASAHI OPTICAL CO LTD8 citations74
US6014205AJan 11, 2000
Position sensor for transmission type optical deflector and apparatus for correcting scanning position of scanning optical system
ASAHI OPTICAL CO LTD15 citations74
US5917599AJun 29, 1999
Lens inclination adjustment system using an interferometer
ASAHI OPTICAL CO LTD11 citations74
US5896362AApr 20, 1999
Lens Inclination Adjustment System
ASAHI OPTICAL CO LTD12 citations74
US5894370AApr 13, 1999
Inclination monitoring system
ASAHI OPTICAL CO LTD14 citations74
US5883709AMar 16, 1999
Inclination monitoring system including reflection of collimated light
ASAHI OPTICAL CO LTD16 citations74
US5805363ASep 8, 1998
Collimating lens unit
ASAHI OPTICAL CO LTD14 citations74
US5790501AAug 4, 1998
Information reproducing device
ASAHI OPTICAL CO LTD16 citations74
US5751491AMay 12, 1998
Method of adjusting beam axis of optical pick-up
ASAHI OPTICAL CO LTD8 citations74
US5740147AApr 14, 1998
Phase compensation of optical elements by tilting a half wave plate in a magneto-optic disk head
ASAHI OPTICAL CO LTD9 citations74
US5663939ASep 2, 1997
Optical data recording and reproducing apparatus including non-circular beam spot
ASAHI OPTICAL CO LTD17 citations74
US5373437ADec 13, 1994
Device for and method of reducing cross talk in optical disk device
ASAHI OPTICAL CO LTD11 citations74
US5337300AAug 9, 1994
Signal sensing device of magneto-optic disk device for detecting error signal and information record signals with common photo sensor
ASAHI OPTICAL CO LTD14 citations74
US5280464AJan 18, 1994
Optical disk apparatus having a focusing error correcting system
ASAHI OPTICAL CO LTD10 citations74
US5434835AJul 18, 1995
Optical disk apparatus
ASAHI OPTICAL CO LTD7 citations73