Inventor
KOIKE KATSUHIRO
JP17 patents
⚠️ This page may combine multiple inventors who share the name “KOIKE KATSUHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PIONEER CORP
10 patentsUS7227704B2Jun 5, 2007
Diffractive optical element, objective lens module, optical pickup, and optical information recording and reproducing apparatus
PIONEER CORP36 citations92
US6667947B2Dec 23, 2003
Optical multi-layer information recordating medium
PIONEER CORP17 citations84
US6641887B2Nov 4, 2003
Optical recording medium
PIONEER CORP17 citations84
US6594091B2Jul 15, 2003
Optical pickup
PIONEER CORP11 citations74
US6625103B1Sep 23, 2003
Aspherical objective lens for reading information from optical disks of different thickness and manufacturing method therefor
PIONEER CORP10 citations73
US7468942B2Dec 23, 2008
Optical pickup, optical element, and information reproducing apparatus configured for use with any of plural types of recording media
PIONEER CORP4 citations63
US6529339B2Mar 4, 2003
Lens and production method therefor
PIONEER CORP6 citations63
US7852736B2Dec 14, 2010
Optical element having aberration correction and optical pickup and optical information recording and/or reproducing apparatus equipped therewith
PIONEER CORP2 citations62
US8004951B2Aug 23, 2011
Pickup device
PIONEER CORP0 citations41
US7463571B2Dec 9, 2008
Optical element, optical pickup, and optical information recording/reproducing apparatus
PIONEER CORP0 citations41