Inventor
ARAKI YOSHITSUGU
JP34 patents
⚠️ This page may combine multiple inventors who share the name “ARAKI YOSHITSUGU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PIONEER ELECTRONIC CORP
16 patentsUS5512919AApr 30, 1996
Three-dimensional coordinates input apparatus
PIONEER ELECTRONIC CORP335 citations99
US6151154ANov 21, 2000
Optical pickup, aberration correction unit and astigmatism measurement method
PIONEER ELECTRONIC CORP61 citations96
US5684771ANov 4, 1997
Optical recording medium discriminating apparatus
PIONEER ELECTRONIC CORP22 citations93
US6442125B1Aug 27, 2002
Optical pickup
PIONEER ELECTRONIC CORP23 citations92
US4727529AFeb 23, 1988
Pickup unit for use in an optical information record/reproduce system
PIONEER ELECTRONIC CORP34 citations92
US6518555B1Feb 11, 2003
Polarization hologram lens, optical pickup, information reproduction apparatus and information recording apparatus
PIONEER ELECTRONIC CORP17 citations84
US6370092B1Apr 9, 2002
Optical pickup and optical disk drive for use with a high-density optical disk
PIONEER ELECTRONIC CORP18 citations84
US5914923AJun 22, 1999
Tilt servo system
PIONEER ELECTRONIC CORP18 citations84
US6198465B1Mar 6, 2001
System for producing a liquid crystal driving signal
PIONEER ELECTRONIC CORP9 citations74
US5909413AJun 1, 1999
Optical pickup apparatus having crosstalk balance and tilt correction
PIONEER ELECTRONIC CORP12 citations74
US5953292ASep 14, 1999
Rapid data reproduction method and apparatus for optical disk
PIONEER ELECTRONIC CORP4 citations63
US4680743AJul 14, 1987
Optical parts driving mechanism in optical information reader
PIONEER ELECTRONIC CORP6 citations63
US5146441ASep 8, 1992
Supporting device of an optical pickup
PIONEER ELECTRONIC CORP4 citations62
US4831612AMay 16, 1989
Optical disc reading apparatus
PIONEER ELECTRONIC CORP2 citations62
US4637004AJan 13, 1987
Optical data reading device
PIONEER ELECTRONIC CORP5 citations62
US6147951ANov 14, 2000
Recorded information reproduction method and recorded information reproduction apparatus with multiple reading elements
PIONEER ELECTRONIC CORP1 citations52
PIONEER CORP
14 patentsUS6850474B2Feb 1, 2005
Multilayer optical recording medium and recording method and apparatus for the same
PIONEER CORP27 citations93
US6690500B2Feb 10, 2004
Aberration correction apparatus and method
PIONEER CORP43 citations93
US7242645B2Jul 10, 2007
Optical disc player with focus pull-in function
PIONEER CORP10 citations84
US7116612B2Oct 3, 2006
Optical pickup device driven by an error signal obtained from an optical detector's output signals
PIONEER CORP13 citations84
US6970409B2Nov 29, 2005
Information recording apparatus
PIONEER CORP13 citations84
US6667947B2Dec 23, 2003
Optical multi-layer information recordating medium
PIONEER CORP17 citations84
US6865144B2Mar 8, 2005
Optical pickup apparatus and tilt amount detecting method
PIONEER CORP7 citations74
US6839313B2Jan 4, 2005
Information recording and reproducing apparatus
PIONEER CORP8 citations74
US6683732B2Jan 27, 2004
Objective lens collision preventing device and method for manufacturing the same
PIONEER CORP10 citations74
US6678232B2Jan 13, 2004
Aberration correcting element and assembly
PIONEER CORP10 citations74
US6618351B2Sep 9, 2003
Cartridge and method of cleaning recordation medium surface
PIONEER CORP2 citations63
US6125086ASep 26, 2000
Method and apparatus for high speed reproduction of information recorded on an optical recording medium
PIONEER CORP6 citations63
US6584057B1Jun 24, 2003
Optical pickup system
PIONEER CORP5 citations62
US7307942B2Dec 11, 2007
Information recording medium, information reproducing apparatus, information recording apparatus, and information recording/reproducing apparatus
PIONEER CORP0 citations52