Inventor · disambiguated record
Toshihiro Masaoka
Also filed as: MASAOKA TOSHIHIRO
8 granted patents·27 citations·filing 1991–2011
83Inventor score
Top patents by PatentIndex Score
8 records- 0171US8888906B2Heat-sensitive color-developing composition and heat-sensitive recording material comprising the compositionYAMAGUCHI RYOJI·Filed 2011·Granted Nov 18, 2014·1 cites·6 claims
- 0256US5973140APhthalocyanine compound, its intermediate, process for producing the compound, and use thereofYAMAMOTO CHEMICALS INC·Filed 1998·Granted Oct 26, 1999·5 cites·14 claims
- 0355US5334714AMethod for preparing alkoxyphthalocyanineMITSUI TOATSU CHEMICALS·Filed 1993·Granted Aug 2, 1994·4 cites·9 claims
- 0447US5220010AMethod for preparation alkoxyphthalocyanineMITSUI TOATSU CHEMICALS·Filed 1991·Granted Jun 15, 1993·3 cites·6 claims
- 0546US6162520AOptical recording medium and dipyrromethene metal chelate compound for use thereinMITSUI CHEMICALS INC·Filed 1998·Granted Dec 19, 2000·6 cites·29 claims
- 0643US5627287APhthalide compound and a near infrared absorber and a recording material each comprising the same compoundYAMAMOTO CHEMICALS INC·Filed 1995·Granted May 6, 1997·7 cites·19 claims
- 0741US6355327B1Optical recording medium and dipyrromethene metal chelate compound for use thereinMITSUI CHEMICALS INC·Filed 2000·Granted Mar 12, 2002·0 cites·7 claims
- 0837US6093832ADiiminoisoindoline compound and the process for producing the compound and use thereofYAMAMOTO CHEMICALS INC·Filed 1999·Granted Jul 25, 2000·1 cites·17 claims
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