Inventor
HIRATA HIDEKI
JP84 patents
⚠️ This page may combine multiple inventors who share the name “HIRATA HIDEKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TDK CORP
48 patentsUS7166347B2Jan 23, 2007
Optical information recording medium
TDK CORP62 citations98
US6667952B2Dec 23, 2003
Optical storage medium having a specific light transmitting layer for small laser beam and high linear velocity
TDK CORP59 citations96
US7182990B2Feb 27, 2007
Optical information recording medium
TDK CORP36 citations93
US7167440B2Jan 23, 2007
Optical information recording medium
TDK CORP41 citations93
US7160597B2Jan 9, 2007
Optical information recording medium
TDK CORP43 citations93
US7157128B2Jan 2, 2007
Optical information recording medium
TDK CORP42 citations93
US7141288B2Nov 28, 2006
Optical information recording medium
TDK CORP26 citations93
US7141289B2Nov 28, 2006
Optical information recording medium
TDK CORP28 citations93
US7082090B2Jul 25, 2006
Method of recording information to an optical recording medium, information recording apparatus, and optical recording medium
TDK CORP25 citations93
US6996055B2Feb 7, 2006
Optical recording medium and method for optically recording data in the same
TDK CORP26 citations93
US6811850B1Nov 2, 2004
Optical information medium and its fabrication process
TDK CORP27 citations93
US6731590B1May 4, 2004
Optical recording medium containing a substrate, an intermediate layer having therein an amorphous material, the intermediate layer having a reflective layer thereon
TDK CORP42 citations93
US6596363B2Jul 22, 2003
Optical information medium
TDK CORP22 citations93
US5340698AAug 23, 1994
Optical disk
TDK CORP22 citations93
US7154836B2Dec 26, 2006
Optical recording/reproducing method and optical recording medium
TDK CORP27 citations92
US7136343B2Nov 14, 2006
Optical recording/reproducing method and optical recording medium
TDK CORP25 citations92
US6775838B2Aug 10, 2004
Optical information medium and its testing method
TDK CORP23 citations92
US6590856B2Jul 8, 2003
Optical information medium
TDK CORP20 citations92
US6576320B2Jun 10, 2003
Optical information medium and evaluation method
TDK CORP44 citations92
US5580633ADec 3, 1996
Magneto-optical disc having a protective layer of cured radiation curable resin containing carbon particles
TDK CORP28 citations92
US5568466AOct 22, 1996
Magneto-optical disc
TDK CORP31 citations92
US4737408AApr 12, 1988
Magneto-optical recording medium having plasma-polymerized protective layers
TDK CORP29 citations92
US5936934AAug 10, 1999
Optical disc having substrates with a specified thickness/diameter ratio and an adhesive layer with a specified Young's modulus range and mechanical dissipation factor range
TDK CORP41 citations90
US5279877AJan 18, 1994
Magneto optical disc
TDK CORP21 citations90
US5244706ASep 14, 1993
Optical recording disk
TDK CORP22 citations90
US6249509B1Jun 19, 2001
Optical device with protective cover
TDK CORP16 citations84
US7197005B2Mar 27, 2007
Optical recording method and medium
TDK CORP7 citations74
US6898796B2May 24, 2005
Optical information medium and making method
TDK CORP10 citations74
US6665260B2Dec 16, 2003
Optical recording medium including protruding winding parts used as prepits
TDK CORP7 citations74
US6600717B2Jul 29, 2003
Optical information medium
TDK CORP9 citations74
US6410116B1Jun 25, 2002
Optical information medium and its fabrication process
TDK CORP9 citations74
US6403193B1Jun 11, 2002
Optical recording medium
TDK CORP8 citations74
US5604005AFeb 18, 1997
Magneto-optical disc
TDK CORP14 citations74
US5578355ANov 26, 1996
Magneto-optical disk having a microporous protective coating containing a lubricant
TDK CORP8 citations74
US5219708AJun 15, 1993
Optical disk
TDK CORP13 citations74
US6844045B2Jan 18, 2005
Method for making optical information medium and optical information medium
TDK CORP8 citations73
US7485356B2Feb 3, 2009
Optical recording medium
TDK CORP6 citations63
US7362682B2Apr 22, 2008
Method for recording data in an optical recording disc and an apparatus for recording data in an optical recording disc
TDK CORP2 citations63
US7283457B2Oct 16, 2007
Optical recording medium and method of evaluating optical recording medium
TDK CORP2 citations63
US7254101B2Aug 7, 2007
Laser beam power modulation pattern decision method, device for recording data onto optical recording medium, and optical recording medium
TDK CORP4 citations63
US7231649B2Jun 12, 2007
Optical recording medium and method for optically recording data in the same
TDK CORP2 citations63
US7055162B2May 30, 2006
Optical information medium and making method
TDK CORP2 citations63
US6921568B2Jul 26, 2005
Optical recording medium
TDK CORP5 citations63
US6866884B2Mar 15, 2005
Optical information medium
TDK CORP5 citations63
US6706360B2Mar 16, 2004
Optical recording medium
TDK CORP3 citations63
US6689415B2Feb 10, 2004
Method and apparatus for preparing optical information medium
TDK CORP6 citations63
US6680899B2Jan 20, 2004
Optical information medium
TDK CORP2 citations63
US6511729B1Jan 28, 2003
Optical information medium and making method
TDK CORP2 citations63
TDKCORPORATION
1 patentSIRO TECHNOLOGIES INC
1 patentShowing the top 50 of 84 patents by PatentIndex Score.