Inventor
MATSUMIYA HIROAKI
JP11 patents
⚠️ This page may combine multiple inventors who share the name “MATSUMIYA HIROAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PANASONIC CORP
4 patentsUS7830761B2Nov 9, 2010
Optical disk apparatus
PANASONIC CORP2 citations61
US7468939B2Dec 23, 2008
Optical disk apparatus with phase difference offset
PANASONIC CORP0 citations41
US7929399B2Apr 19, 2011
Optical pickup device and optical disc device
PANASONIC CORP0 citations40
US7929386B2Apr 19, 2011
Optical disc device
PANASONIC CORP0 citations40
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
3 patentsUS6674709B1Jan 6, 2004
Optical head apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations73
US6914870B2Jul 5, 2005
Optical head apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations62
US6741538B2May 25, 2004
Optical device for recording and reproducing information
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations62