Inventor
KASUGA IKUO
JP16 patents
⚠️ This page may combine multiple inventors who share the name “KASUGA IKUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SANKYO SEIKI SEISAKUSHO KK
15 patentsUS5488594AJan 30, 1996
Objective actuator for positioning an optical pick-up device
SANKYO SEIKI SEISAKUSHO KK24 citations92
US4998802AMar 12, 1991
Objective lens driving device in an optical pickup
SANKYO SEIKI SEISAKUSHO KK37 citations92
US4968874ANov 6, 1990
Optical pickup with astigmatism correcting lens
SANKYO SEIKI SEISAKUSHO KK25 citations92
US6369963B1Apr 9, 2002
Optical pickup apparatus
SANKYO SEIKI SEISAKUSHO KK10 citations73
US6125091ASep 26, 2000
Optical pickup apparatus for use with various types of optical disks
SANKYO SEIKI SEISAKUSHO KK8 citations73
US5844881ADec 1, 1998
Objective lens driving device capable of holding an objective lens at a specific neutral point
SANKYO SEIKI SEISAKUSHO KK11 citations73
US5761174AJun 2, 1998
Optical pickup device with split hologram element that diffracts light in direction parallel to track
SANKYO SEIKI SEISAKUSHO KK16 citations73
US4962999AOct 16, 1990
Optical pick-up device
SANKYO SEIKI SEISAKUSHO KK12 citations73
US4664476AMay 12, 1987
Magnetic objective lens driving apparatus with pivot
SANKYO SEIKI SEISAKUSHO KK19 citations73
US6584061B2Jun 24, 2003
Optical pick-up device
SANKYO SEIKI SEISAKUSHO KK10 citations72
US5599864AFeb 4, 1997
Polyarylene sulfide resin composition and optical pick-up parts formed from the same
SANKYO SEIKI SEISAKUSHO KK11 citations72
US5541898AJul 30, 1996
Device for driving an objective lens
SANKYO SEIKI SEISAKUSHO KK16 citations71
US6798819B1Sep 28, 2004
Optical pickup apparatus and method of manufacturing the same
SANKYO SEIKI SEISAKUSHO KK3 citations62
US6522619B2Feb 18, 2003
Optical pick-up device having a plurality of light sources with different calorific values and method of manufacturing the same
SANKYO SEIKI SEISAKUSHO KK4 citations60
US5517362AMay 14, 1996
Optical pickup device
SANKYO SEIKI SEISAKUSHO KK3 citations57