Inventor
KASHIWAGI TOSHIYUKI
JP51 patents
⚠️ This page may combine multiple inventors who share the name “KASHIWAGI TOSHIYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
45 patentsUS6442110B1Aug 27, 2002
Beam irradiation apparatus, optical apparatus having beam irradiation apparatus for information recording medium, method for manufacturing original disk for information recording medium, and method for manufacturing information recording medium
SONY CORP104 citations98
US6246656B1Jun 12, 2001
Reduced thickness of a light transmissive layer for a high density optical disc
SONY CORP199 citations98
US5708652AJan 13, 1998
Multi-layer recording medium and method for producing same
SONY CORP99 citations98
US6023451AFeb 8, 2000
Optical recording medium and optical disk apparatus
SONY CORP101 citations97
US6353592B1Mar 5, 2002
Optical recording medium and optical disk device
SONY CORP52 citations96
US6175548B1Jan 16, 2001
Optical recording medium and optical recording and reproducing apparatus
SONY CORP78 citations96
US5972459AOct 26, 1999
Optical recording medium and optical disk apparatus
SONY CORP63 citations95
US6111851AAug 29, 2000
Optical recording medium and method of manufacturing same
SONY CORP34 citations93
US6078560AJun 20, 2000
Optical recording medium and optical recording/reproducing apparatus
SONY CORP29 citations93
US6069868AMay 30, 2000
Multiple layer optical disk storing information at a like multiple densities
SONY CORP44 citations93
US6707787B2Mar 16, 2004
Optical recording medium
SONY CORP17 citations92
US6613396B1Sep 2, 2003
Optical disc and method for manufacturing same
SONY CORP18 citations92
US6440516B1Aug 27, 2002
Optical disc
SONY CORP28 citations92
US6349086B2Feb 19, 2002
Optical disc and method for manufacturing same
SONY CORP20 citations92
US6270611B1Aug 7, 2001
Multi-layer recording medium and method for producing same
SONY CORP32 citations92
US6242066B1Jun 5, 2001
Optical recording medium, optical recording and reproducing apparatus using the same and manufacturing method of optical recording medium
SONY CORP34 citations92
US6210609B1Apr 3, 2001
Method of manufacturing optical recording medium
SONY CORP25 citations92
US6063468AMay 16, 2000
Optical recording medium
SONY CORP42 citations92
US5818805AOct 6, 1998
Reproducing apparatus using an information recording medium wherein multi-bit digital information is represented by a shift amount of a pit edge
SONY CORP37 citations92
US5724330AMar 3, 1998
Information recording medium wherein multi-bit digital information is represented by a shift amount of a pit edge, recording apparatus, reproducing apparatus, and recording and reproducing apparatus therefor
SONY CORP21 citations92
US6663935B1Dec 16, 2003
Disk-like multilayer information recording medium and production method thereof
SONY CORP18 citations84
US6500511B1Dec 31, 2002
Optical disc recycling method and recycled optical disc
SONY CORP14 citations84
US6016302AJan 18, 2000
Optical disc and method for producing same
SONY CORP16 citations84
US5933409AAug 3, 1999
Optical recording medium and method for producing same
SONY CORP18 citations84
US6986861B2Jan 17, 2006
Method of producing an optical recording medium
SONY CORP10 citations74
US6636476B1Oct 21, 2003
Optical recording medium with a substrate of two different resin layers
SONY CORP9 citations74
US6580681B1Jun 17, 2003
Optical disk with information signal representing a character, method and apparatus
SONY CORP11 citations74
US6333914B1Dec 25, 2001
Optical recording medium and method of manufacturing same
SONY CORP6 citations74
US6201783B1Mar 13, 2001
Optical recording medium having substrate of dual transparent layers
SONY CORP7 citations74
US6118574ASep 12, 2000
Exposure apparatus
SONY CORP15 citations74
US5748582AMay 5, 1998
Information recording medium wherein digital symbols are represented by discrete shift amounts of a pit edge and tracking wobbling pits are shared between adjacent tracks and information recording and reproducing apparatus therefor
SONY CORP11 citations74
US5238786AAug 24, 1993
Method for manufacturing high recording density optical disk
SONY CORP16 citations74
US5230770AJul 27, 1993
Making method for high-density optical disk
SONY CORP13 citations74
US6703100B2Mar 9, 2004
Disk-like recording medium and method for producing the same
SONY CORP8 citations73
US6524418B2Feb 25, 2003
Method of production of multilayer optical recording medium
SONY CORP11 citations72
US7480928B2Jan 20, 2009
Optical recording medium and method of producing the same
SONY CORP2 citations63
US6136402AOct 24, 2000
Optical recording medium having disconnected lands and grooves forming control signal portion
SONY CORP2 citations63
US5852329ADec 22, 1998
Optical disc molding device and molding method for optical disc
SONY CORP6 citations59
US5218400AJun 8, 1993
Developing apparatus of photoresist
SONY CORP6 citations54
US7962927B2Jun 14, 2011
Optical disk
SONY CORP0 citations52
US7596077B2Sep 29, 2009
Optical disk
SONY CORP0 citations52
US7295508B2Nov 13, 2007
Optical disk
SONY CORP2 citations52
US7034319B2Apr 25, 2006
Electron beam irradiation apparatus, electron beam irradiation method, original disk, stamper, and recording medium
SONY CORP1 citations52
US6466538B1Oct 15, 2002
Optical recording medium having disconnected land and groove forming control portion
SONY CORP0 citations52
US6207355B1Mar 27, 2001
Optical recording medium and method for producing same
SONY CORP0 citations42
FUJITSU LTD
3 patentsUS6992889B1Jan 31, 2006
Retention module, heat sink and electronic device
FUJITSU LTD68 citations92
US6867975B2Mar 15, 2005
Heat sink, fixing method thereof and electronic apparatus using heat sink
FUJITSU LTD17 citations84
US7032043B1Apr 18, 2006
Keyboard storage device for a computer system
FUJITSU LTD7 citations66
SONY CORP AND SONY DISC TECHNO
1 patentKASHIWAGI TOSHIYUKI
1 patentShowing the top 50 of 51 patents by PatentIndex Score.