P

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 patents
US5434834AJul 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

SHINODA MASAHISA

3 patents

KARAKI MORIHIRO

1 patent

MITSUBISHI KENKI

1 patent

NAKAI KENYA

1 patent