Inventor
YOSHINAKA HIDEKI
JP10 patents
⚠️ This page may combine multiple inventors who share the name “YOSHINAKA HIDEKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
5 patentsUS5790502AAug 4, 1998
Optical pickup with conversion of diffusion angle of outgoing light relative to diffusion angle of incident light
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD143 citations96
US7301864B2Nov 27, 2007
Objective lens, optical pick-up device, and optical disk device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations92
US5978344ANov 2, 1999
Method of manufacturing integrated optical pick-up
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations71
US5777975AJul 7, 1998
Optical pickup incorporating an integrated optical guide member
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations69
US7196981B2Mar 27, 2007
Optical disc apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations61
PANASONIC CORP
4 patentsUS7889620B2Feb 15, 2011
Optical pickup device and optical disk device
PANASONIC CORP8 citations81
US7920443B2Apr 5, 2011
Objective lens, optical pick-up device, and optical disk device
PANASONIC CORP1 citations62
US7813235B2Oct 12, 2010
Objective lens, optical pick-up device, and optical disk device
PANASONIC CORP2 citations62
US7920442B2Apr 5, 2011
Objective lens, optical pick-up device, and optical disk device
PANASONIC CORP0 citations51