Inventor
ANDOU TETSUO
JP39 patents
⚠️ This page may combine multiple inventors who share the name “ANDOU TETSUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
24 patentsUS6392985B2May 21, 2002
Optical reproduction apparatus for reproducing information from optical recording medium having wobbled address pits
HITACHI LTD44 citations97
US6370106B2Apr 9, 2002
Optical reproduction apparatus
HITACHI LTD43 citations97
US5898663AApr 27, 1999
Optical recording medium with address information prepit for the same track at opposite boundaries of the same track
HITACHI LTD61 citations97
US5982738ANov 9, 1999
Optical recording medium having at least wobbled synchronous information shared between tracks
HITACHI LTD17 citations96
US5377212ADec 27, 1994
Solid-state laser device including uniaxial laser crystal emitting linearly polarized fundamental wave and nonlinear optical crystal emitting linearly polarized harmonic wave
HITACHI LTD57 citations95
US5854870ADec 29, 1998
Short-wavelength laser light source
HITACHI LTD37 citations92
US6064644AMay 16, 2000
Optical recording medium having particular arrangement of prepits and manufacturing method thereof
HITACHI LTD13 citations86
US6603730B2Aug 5, 2003
Optical reproducing method
HITACHI LTD12 citations82
US6580685B2Jun 17, 2003
Optical recording medium with aligned prepit portion
HITACHI LTD4 citations82
US6552994B2Apr 22, 2003
Optical reproduction apparatus
HITACHI LTD6 citations82
US6549510B2Apr 15, 2003
Optical recording medium having grooves and lands
HITACHI LTD4 citations82
US6542456B2Apr 1, 2003
Optical reproducing method
HITACHI LTD6 citations82
US6532207B2Mar 11, 2003
Optical reproducing method
HITACHI LTD4 citations82
US6529470B2Mar 4, 2003
Optical recording medium with aligned prepit portion
HITACHI LTD6 citations82
US6483800B2Nov 19, 2002
Optical reproduction apparatus for reproducing information from an optical recording medium having wobbled pits
HITACHI LTD6 citations82
US6430146B1Aug 6, 2002
Optical reproducing method
HITACHI LTD5 citations82
US6262968B1Jul 17, 2001
Optical information processing apparatus
HITACHI LTD8 citations82
US7099263B2Aug 29, 2006
Optical reproducing method for optical medium with aligned prepit portion
HITACHI LTD1 citations74
US6845081B2Jan 18, 2005
Optical reproducing method for optical medium with aligned prepit portion
HITACHI LTD3 citations74
US6545973B2Apr 8, 2003
Optical reproduction apparatus
HITACHI LTD2 citations74
US6538981B2Mar 25, 2003
Optical reproduction apparatus
HITACHI LTD4 citations74
US6538980B2Mar 25, 2003
Optical disc
HITACHI LTD2 citations74
US6996054B2Feb 7, 2006
Optical reproducing method for optical medium with aligned prepit portion
HITACHI LTD0 citations63
US6728171B2Apr 27, 2004
Arrangements for correction of focusing light beam, and system using the same
HITACHI LTD4 citations58
HITACHI MAXELL
15 patentsUS7154842B2Dec 26, 2006
Optical reproducing method for optical medium with aligned prepit portion
HITACHI MAXELL0 citations63
US7092350B2Aug 15, 2006
Optical reproducing method for optical medium with aligned prepit portion
HITACHI MAXELL0 citations63
US7085222B2Aug 1, 2006
Optical reproducing method for optical medium with aligned prepit portion
HITACHI MAXELL0 citations63
US7082098B2Jul 25, 2006
Optical reproducing method for optical medium with aligned prepit portion
HITACHI MAXELL0 citations63
US7079478B2Jul 18, 2006
Optical reproducing method for optical medium with aligned prepit portion
HITACHI MAXELL0 citations63
US7072277B2Jul 4, 2006
Optical reproducing method for optical medium with aligned prepit portion
HITACHI MAXELL0 citations63
US7072280B2Jul 4, 2006
Optical reproducing method for optical medium with aligned prepit portion
HITACHI MAXELL0 citations63
US7072286B2Jul 4, 2006
Optical reproducing method for optical medium with aligned prepit portion
HITACHI MAXELL0 citations63
US7072279B2Jul 4, 2006
Optical reproducing method for optical medium with aligned prepit portion
HITACHI MAXELL0 citations63
US7072288B2Jul 4, 2006
Optical reproducing method for optical medium with aligned prepit portion
HITACHI MAXELL0 citations63
US7072281B2Jul 4, 2006
Optical reproducing method for optical medium with aligned prepit portion
HITACHI MAXELL0 citations63
US7072282B2Jul 4, 2006
Optical reproducing method for optical medium with aligned prepit portion
HITACHI MAXELL0 citations63
US7092349B2Aug 15, 2006
Optical reproducing method optical medium with aligned prepit portion
HITACHI MAXELL0 citations52
US7072278B2Jul 4, 2006
Optical reproducing method for optical medium with aligned prepit portion
HITACHI MAXELL0 citations52
US7072287B2Jul 4, 2006
Optical reproducing method for optical medium with aligned prepit portion
HITACHI MAXELL0 citations52