Inventor
SHINODA MASAHISA
JP21 patents
⚠️ This page may combine multiple inventors who share the name “SHINODA MASAHISA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI ELECTRIC CORP
15 patentsUS5434834AJul 18, 1995
Optical recording and reproducing apparatus for tracking wobbling guide grooves
MITSUBISHI ELECTRIC CORP121 citations98
US5303216AApr 12, 1994
Optical recording and reproducing apparatus for tracking wobbling guide grooves
MITSUBISHI ELECTRIC CORP43 citations96
US5383169AJan 17, 1995
Optical recording and reproducing apparatus for tracking wobbling guide grooves
MITSUBISHI ELECTRIC CORP24 citations92
US5359588AOct 25, 1994
Optical recording/reproducing apparatus
MITSUBISHI ELECTRIC CORP21 citations92
US5130965AJul 14, 1992
Optical recording/reproducing apparatus using a light spot switching means for centering beams on an information track
MITSUBISHI ELECTRIC CORP36 citations92
US4935913AJun 19, 1990
Optical information recording and reproducing apparatus
MITSUBISHI ELECTRIC CORP29 citations92
US5986984ANov 16, 1999
Optical information processing device having switchable optics for use with plural media types
MITSUBISHI ELECTRIC CORP23 citations91
US5367512ANov 22, 1994
Multi-beam optical recording-reproduction device with independent error detection for each beam
MITSUBISHI ELECTRIC CORP9 citations73
US8018799B2Sep 13, 2011
Optical pickup device and optical disc device
MITSUBISHI ELECTRIC CORP2 citations63
US7652246B2Jan 26, 2010
Optical pickup device and optical disk device
MITSUBISHI ELECTRIC CORP2 citations63
US6912192B2Jun 28, 2005
Semiconductor laser unit and optical head device
MITSUBISHI ELECTRIC CORP3 citations62
US7266072B2Sep 4, 2007
Semiconductor laser unit and optical head device
MITSUBISHI ELECTRIC CORP1 citations51
US7848206B2Dec 7, 2010
Diffractive optical element and optical head
MITSUBISHI ELECTRIC CORP0 citations42
US7782730B2Aug 24, 2010
Optical-pickup-adjustment optical disk, method of adjusting optical pickup device, and method of producing optical pickup device
MITSUBISHI ELECTRIC CORP0 citations41
US5511048AApr 23, 1996
Magneto-optical recording and reproducing apparatus
MITSUBISHI ELECTRIC CORP0 citations40