Inventor
YOSHIOKA AKI
JP4 patents
Patents
4 patentsUS6480456B1Nov 12, 2002
Optical pickup apparatus for reading different types of recording media at different reading wavelengths
PIONEER CORP36 citations91
US6452880B1Sep 17, 2002
Optical pickup apparatus
PIONEER CORP21 citations91
US6429981B2Aug 6, 2002
Optical pickup apparatus
PIONEER CORP10 citations72
US6912234B2Jun 28, 2005
Optical pickup apparatus and laser diode chip
PIONEER CORP0 citations51