P

Inventor

SUGIMOTO KENICHI

JP89 patents
⚠️ This page may combine multiple inventors who share the name “SUGIMOTO KENICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MITSUI TOATSU CHEMICALS

20 patents
US5578419ANov 26, 1996

Dyes for color filters, and photosensitive resist resin composition containing the same

MITSUI TOATSU CHEMICALS46 citations96
US5380842AJan 10, 1995

Phthalocyanine compounds and usage thereof

MITSUI TOATSU CHEMICALS28 citations92
US4453009AJun 5, 1984

Process for producing fluorobenzophenone derivatives

MITSUI TOATSU CHEMICALS19 citations82
US5695911ADec 9, 1997

Optical recording medium

MITSUI TOATSU CHEMICALS7 citations74
US5482804AJan 9, 1996

Resin composition for color filter

MITSUI TOATSU CHEMICALS14 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
US5077436ADec 31, 1991

Bis(3-aminophenoxy) aromatics and method of preparing the same

MITSUI TOATSU CHEMICALS10 citations74
US5446142AAug 29, 1995

Phthalocyanine and naphthalocyanine light-absorbing compound and optical recording medium containing same

MITSUI TOATSU CHEMICALS17 citations73
US4671890AJun 9, 1987

Aminobenzylamine composition

MITSUI TOATSU CHEMICALS6 citations73
US4556738ADec 3, 1985

Process for preparation of 3,3'- or 3,4'-diamino benzophenone

MITSUI TOATSU CHEMICALS8 citations73
US5693396ADec 2, 1997

Phthalocyanine compounds and optical recording media comprising them

MITSUI TOATSU CHEMICALS4 citations63
US5672462ASep 30, 1997

Optical recording medium

MITSUI TOATSU CHEMICALS6 citations63
US4803258AFeb 7, 1989

Thermoplastic aromatic polyether-pyridine and process for preparing same

MITSUI TOATSU CHEMICALS3 citations63
US4754068AJun 28, 1988

1,3-bis(3-aminophenoxy)-5-halogenobenzenes and process for their preparation

MITSUI TOATSU CHEMICALS2 citations63
US4701567AOct 20, 1987

Process for producing 6,6'-dihydroxy-3,3,3',3'-tetramethyl-1,1'-spirobiindane

MITSUI TOATSU CHEMICALS4 citations63
US4692554ASep 8, 1987

Process for producing 1,3-bis(3-aminophenoxy)benzene

MITSUI TOATSU CHEMICALS5 citations63
US4482742ANov 13, 1984

Process for preparing of 3,3'-diamino diphenylsulfones

MITSUI TOATSU CHEMICALS3 citations63
US4271059AJun 2, 1981

Color-developing composition for pressure-sensitive recording sheet material and process for the preparation thereof containing phenolic resin and hindered phenol

MITSUI TOATSU CHEMICALS3 citations63
US4235769ANov 25, 1980

Color-developing phenolic-aldehyde composition for pressure-sensitive recording sheet material and process for the preparation thereof

MITSUI TOATSU CHEMICALS3 citations63

MITSUI CHEMICALS INC

11 patents

LINE CORP

8 patents

BRIDGESTONE CORP

3 patents

HAMAMATSU PHOTONICS KK

3 patents

KANEBO LTD

2 patents

TOYO JOZO KK

1 patent

MITSUI CHEMICALS

1 patent

TACHI S CO

1 patent

Showing the top 50 of 89 patents by PatentIndex Score.