Inventor · disambiguated record
Takahisa Oguchi
Also filed as: OGUCHI TAKAHISA
24 granted patents·303 citations·filing 1988–2001
96Inventor score
Top patents by PatentIndex Score
24 records- 0192US5024926AAlkylphthalocyanine near-infrared absorbers and recording/display materials using the sameMITSUI TOATSU CHEMICALS·Filed 1990·Granted Jun 18, 1991·39 cites·8 claims
- 0289US4960538A1,2-naphthalocyanine near-infrared absorbent and recording/display materials using sameMITSUI TOATSU CHEMICALS·Filed 1988·Granted Oct 2, 1990·24 cites·16 claims
- 0388US5124067ANear infrared absorbers and display/recording materials using the sameMITSUI TOATSU CHEMICALS·Filed 1989·Granted Jun 23, 1992·32 cites·15 claims
- 0487US5380842APhthalocyanine compounds and usage thereofMITSUI TOATSU CHEMICALS·Filed 1992·Granted Jan 10, 1995·28 cites·15 claims
- 0583US6734276B2Polyimide and circuit substrate comprising the sameMITSUI CHEMICALS INC·Filed 2001·Granted May 11, 2004·19 cites·12 claims
- 0677US5270463AHalogenated alkoxyphthalocyaninesMITSUI TOATSU CHEMICALS·Filed 1991·Granted Dec 14, 1993·14 cites·16 claims
- 0775US5296162ANear infrared absorbers and display/recording materials using the sameMITSUI TOATSU CHEMICALS·Filed 1992·Granted Mar 22, 1994·14 cites·5 claims
- 0873US5538985APyrrolidinone derivativesMITSUI TOATSU CHEMICALS·Filed 1995·Granted Jul 23, 1996·22 cites·12 claims
- 0969US5446142APhthalocyanine and naphthalocyanine light-absorbing compound and optical recording medium containing sameMITSUI TOATSU CHEMICALS·Filed 1993·Granted Aug 29, 1995·17 cites·22 claims
- 1069US4970021APhthalocyanine compounds and utility thereofMITSUI TOATSU CHEMICALS·Filed 1988·Granted Nov 13, 1990·9 cites·3 claims
- 1166US5350843AHalogenated phthalocyanine compound, method for preparing sameMITSUI TOATSU CHEMICALS·Filed 1991·Granted Sep 27, 1994·9 cites·14 claims
- 1261US5280114AHalogenation of alkoxyphthalocyanineMITSUI TOATSU CHEMICALS·Filed 1991·Granted Jan 18, 1994·11 cites·12 claims
- 1359US5695911AOptical recording mediumMITSUI TOATSU CHEMICALS·Filed 1995·Granted Dec 9, 1997·7 cites·1 claims
- 1459US5582774AAlkylphthalocyanine near-infrared absorbers and recording/display materials using the sameMITSUI TOATSU CHEMICALS·Filed 1991·Granted Dec 10, 1996·5 cites·4 claims
- 1558US5449587ACompact disk-write once type optical recording mediaMITSUI TOATSU CHEMICALS·Filed 1994·Granted Sep 12, 1995·7 cites·2 claims
- 1657US5750229APhthalocyanine compound and optical recording medium containing itMITSUI TOATSU CHEMICALS·Filed 1997·Granted May 12, 1998·5 cites·7 claims
- 1756US5646273APhthalocyanine compound and optical recording medium containing itMITSUI TOATSU CHEMICALS·Filed 1995·Granted Jul 8, 1997·5 cites·16 claims
- 1855US5334714AMethod for preparing alkoxyphthalocyanineMITSUI TOATSU CHEMICALS·Filed 1993·Granted Aug 2, 1994·4 cites·9 claims
- 1953US5409634ANear infrared absorbers and display/recording materials using the sameMITSUI TOATSU CHEMICALS·Filed 1991·Granted Apr 25, 1995·7 cites·15 claims
- 2050US5446141AAlkylphthalocyanine near-infrared absorbers and recording/display materials using the sameMITSUI TOATSU CHEMICALS·Filed 1992·Granted Aug 29, 1995·9 cites·6 claims
- 2148US5358833AAmorphous phthalocyanine compound or mixture of amorphous phthalocyanine compounds, and method for preparing sameMITSUI TOATSU CHEMICALS·Filed 1992·Granted Oct 25, 1994·11 cites·22 claims
- 2247US5220010AMethod for preparation alkoxyphthalocyanineMITSUI TOATSU CHEMICALS·Filed 1991·Granted Jun 15, 1993·3 cites·6 claims
- 2333US5969138APyrrolidinone derivativesMITSUI CHEMICALS INC·Filed 1997·Granted Oct 19, 1999·2 cites·15 claims
- 2430US5387678AHalogenation process of phthalocyanine and halogenated alkoxyphthalocyanineMITSUI TOATSU CHEMICALS·Filed 1993·Granted Feb 7, 1995·0 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →