Inventor
MARUYAMA MASUO
JP7 patents
⚠️ This page may combine multiple inventors who share the name “MARUYAMA MASUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
6 patentsUS6449232B1Sep 10, 2002
Disk type determination method
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD44 citations91
US4680662AJul 14, 1987
Disk cartridge having a shutter mechanism
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD26 citations91
US4727444AFeb 23, 1988
Loading device for a cartridge
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD20 citations80
US7421720B2Sep 2, 2008
Optical disk device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations73
US7260041B2Aug 21, 2007
Disk drive
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations61
US6469865B1Oct 22, 2002
Disk apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations60