Inventor
YAGI KATSUYA
JP15 patents
⚠️ This page may combine multiple inventors who share the name “YAGI KATSUYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KONISHIROKU PHOTO IND
7 patentsUS5920532AJul 6, 1999
Information pick-up apparatus and optical disk apparatus
KONISHIROKU PHOTO IND31 citations92
US5808999ASep 15, 1998
Optical pickup apparatus and objective lens for optical pickup apparatus
KONISHIROKU PHOTO IND21 citations92
US5757758AMay 26, 1998
Optical pickup apparatus objective lens and converging optical system for optical pickup and optical disk apparatus
KONISHIROKU PHOTO IND42 citations92
US5754513AMay 19, 1998
Information pick-up apparatus and optical disk apparatus
KONISHIROKU PHOTO IND41 citations92
US5883747AMar 16, 1999
Recording and/or reproducing optical system and objective lens for optical information recording medium
KONISHIROKU PHOTO IND13 citations73
US5422866AJun 6, 1995
Magneto-optical head with birefringent polarizer
KONISHIROKU PHOTO IND7 citations73
US5068845ANov 26, 1991
Optical pickup device for reading information on an optical disk
KONISHIROKU PHOTO IND3 citations62
KONICA MINOLTA OPTO INC
4 patentsUS7586827B2Sep 8, 2009
Optical pickup apparatus
KONICA MINOLTA OPTO INC4 citations62
US7929385B2Apr 19, 2011
Optical pickup apparatus
KONICA MINOLTA OPTO INC3 citations61
US7511880B2Mar 31, 2009
Semiconductor light source module
KONICA MINOLTA OPTO INC2 citations58
US7843777B2Nov 30, 2010
Assembly method of optical pickup and optical pickup apparatus
KONICA MINOLTA OPTO INC0 citations51