Inventor
OGUCHI TAKAHISA
JP24 patents
⚠️ This page may combine multiple inventors who share the name “OGUCHI TAKAHISA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUI TOATSU CHEMICALS
22 patentsUS5380842AJan 10, 1995
Phthalocyanine compounds and usage thereof
MITSUI TOATSU CHEMICALS28 citations92
US5124067AJun 23, 1992
Near infrared absorbers and display/recording materials using the same
MITSUI TOATSU CHEMICALS32 citations92
US5024926AJun 18, 1991
Alkylphthalocyanine near-infrared absorbers and recording/display materials using the same
MITSUI TOATSU CHEMICALS39 citations92
US4960538AOct 2, 1990
1,2-naphthalocyanine near-infrared absorbent and recording/display materials using same
MITSUI TOATSU CHEMICALS24 citations92
US5538985AJul 23, 1996
Pyrrolidinone derivatives
MITSUI TOATSU CHEMICALS22 citations89
US5296162AMar 22, 1994
Near infrared absorbers and display/recording materials using the same
MITSUI TOATSU CHEMICALS14 citations81
US5695911ADec 9, 1997
Optical recording medium
MITSUI TOATSU CHEMICALS7 citations74
US5446141AAug 29, 1995
Alkylphthalocyanine near-infrared absorbers and recording/display materials using the same
MITSUI TOATSU CHEMICALS9 citations74
US5358833AOct 25, 1994
Amorphous phthalocyanine compound or mixture of amorphous phthalocyanine compounds, and method for preparing same
MITSUI TOATSU CHEMICALS11 citations74
US5350843ASep 27, 1994
Halogenated phthalocyanine compound, method for preparing same
MITSUI TOATSU CHEMICALS9 citations74
US5280114AJan 18, 1994
Halogenation of alkoxyphthalocyanine
MITSUI TOATSU CHEMICALS11 citations74
US4970021ANov 13, 1990
Phthalocyanine compounds and utility thereof
MITSUI TOATSU CHEMICALS9 citations74
US5449587ASep 12, 1995
Compact disk-write once type optical recording media
MITSUI TOATSU CHEMICALS7 citations73
US5446142AAug 29, 1995
Phthalocyanine and naphthalocyanine light-absorbing compound and optical recording medium containing same
MITSUI TOATSU CHEMICALS17 citations73
US5409634AApr 25, 1995
Near infrared absorbers and display/recording materials using the same
MITSUI TOATSU CHEMICALS7 citations73
US5270463ADec 14, 1993
Halogenated alkoxyphthalocyanines
MITSUI TOATSU CHEMICALS14 citations73
US5582774ADec 10, 1996
Alkylphthalocyanine near-infrared absorbers and recording/display materials using the same
MITSUI TOATSU CHEMICALS5 citations63
US5750229AMay 12, 1998
Phthalocyanine compound and optical recording medium containing it
MITSUI TOATSU CHEMICALS5 citations62
US5646273AJul 8, 1997
Phthalocyanine compound and optical recording medium containing it
MITSUI TOATSU CHEMICALS5 citations62
US5334714AAug 2, 1994
Method for preparing alkoxyphthalocyanine
MITSUI TOATSU CHEMICALS4 citations62
US5220010AJun 15, 1993
Method for preparation alkoxyphthalocyanine
MITSUI TOATSU CHEMICALS3 citations60
US5387678AFeb 7, 1995
Halogenation process of phthalocyanine and halogenated alkoxyphthalocyanine
MITSUI TOATSU CHEMICALS0 citations52