Inventor · disambiguated record
Yoshitake Yanagisawa
Also filed as: YANAGISAWA YOSHITAKE
10 granted patents·142 citations·filing 1992–2010
89Inventor score
Files withSONY CORP5MATSUBARA TAKASHI1SONY CORP AND SONY DISC TECHNO1SONY DISC & DIGITAL SLOUTIONS1SONY DISC TECHNOLOGY INC1
Top patents by PatentIndex Score
10 records- 0187US7236439B2Optical disc medium and data recording method and apparatusSONY DISC & DIGITAL SLOUTIONS·Filed 2005·Granted Jun 26, 2007·12 cites·16 claims
- 0280US5846626AOptical recording medium and method of producing sameSONY CORP AND SONY DISC TECHNO·Filed 1996·Granted Dec 8, 1998·46 cites·21 claims
- 0374US5409756AOptical disc with corrosion-resistant metallic reflective layerSONY CORP·Filed 1992·Granted Apr 25, 1995·22 cites·4 claims
- 0472US5914495AInspection apparatus for inspecting a defect of an optical discSONY CORP·Filed 1997·Granted Jun 22, 1999·35 cites·4 claims
- 0556US8216656B2Disc master, disc master manufacturing method, stamper, disc substrate, optical disc, and optical disc manufacturing methodMATSUBARA TAKASHI·Filed 2008·Granted Jul 10, 2012·0 cites·8 claims
- 0656US7852730B2Optical disk medium, and data recording method and deviceSONY CORP·Filed 2002·Granted Dec 14, 2010·2 cites·6 claims
- 0754US5445853AOptical data storage mediaSONY CORP·Filed 1993·Granted Aug 29, 1995·10 cites·9 claims
- 0853US7911929B2Optical disk read only memorySONY CORP·Filed 2008·Granted Mar 22, 2011·0 cites·3 claims
- 0952US5646415AApparatus for detecting a defect of an optical disc based on sensor outputs for adjacent positionsSONY DISC TECHNOLOGY INC·Filed 1995·Granted Jul 8, 1997·15 cites·5 claims
- 1044US8164992B2Optical disc medium and data recording method and apparatusUSUI YOSHINOBU·Filed 2010·Granted Apr 24, 2012·0 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →