P

Inventor

SAITO TORANOSUKE

JP33 patents
⚠️ This page may combine multiple inventors who share the name “SAITO TORANOSUKE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SANKO KAIHATSU KAGAKU KENK

17 patents
US4280951AJul 28, 1981

Flame retardants

SANKO KAIHATSU KAGAKU KENK43 citations92
US4973720ANov 27, 1990

Process for the preparation of p-benzoquinone

SANKO KAIHATSU KAGAKU KENK25 citations89
US4618693AOct 21, 1986

Cyclic organic phosphorus compound and process for producing same

SANKO KAIHATSU KAGAKU KENK18 citations81
US4317769AMar 2, 1982

Flame retardants

SANKO KAIHATSU KAGAKU KENK19 citations81
US5049685ASep 17, 1991

Nuclear substituted salicylic acids and their salts

SANKO KAIHATSU KAGAKU KENK7 citations74
US5393332AFeb 28, 1995

Color developer for pressure-sensitive recording sheets

SANKO KAIHATSU KAGAKU KENK9 citations73
US5041604AAug 20, 1991

Process for producing di(aryloxy)alkane

SANKO KAIHATSU KAGAKU KENK14 citations73
US4542395ASep 17, 1985

Heat-sensitive recording material

SANKO KAIHATSU KAGAKU KENK6 citations73
US4535190AAug 13, 1985

Phenolic compounds and a heat-sensitive recording material containing the same

SANKO KAIHATSU KAGAKU KENK7 citations73
US5107006AApr 21, 1992

Clathrate compounds of nuclear-substituted salicyclic acid salts

SANKO KAIHATSU KAGAKU KENK2 citations63
US5164001ANov 17, 1992

Method for preparing aqueous dispersion of developer and pressure-sensitive recording paper

SANKO KAIHATSU KAGAKU KENK2 citations62
US5118443AJun 2, 1992

Developer for pressure-sensitive recording sheets, aqueous dispersion of the developer and method for preparing the developer

SANKO KAIHATSU KAGAKU KENK2 citations62
US5705452AJan 6, 1998

Sulfonyl compound and thermal-sensitive recording medium using the same

SANKO KAIHATSU KAGAKU KENK5 citations61
US5248828ASep 28, 1993

Method for preparing sulfones

SANKO KAIHATSU KAGAKU KENK5 citations61
US4950330AAug 21, 1990

Aqueous dispersion of a developer for pressure-sensitive recording sheet and a process for producing the same

SANKO KAIHATSU KAGAKU KENK4 citations60
US6107506AAug 22, 2000

Process for producing 2-(2-hydroxyphenyl) phenylphosphinic acid and derivatives

SANKO KAIHATSU KAGAKU KENK3 citations51
US5235084AAug 10, 1993

Method for preparing sulfones

SANKO KAIHATSU KAGAKU KENK1 citations50

KANZAKI PAPER MFG CO LTD

6 patents

SEIKISUI CHEMICAL CO LTD

3 patents

SANKO CHEMICAL CO LTD

2 patents

SEKISUI CHEMICAL CO LTD

1 patent

SANKO KAIHATSU KAGAKU KENKYOSH

1 patent

ASAHI DOW LTD

1 patent

SANKO KAIHATSU KAGAKU KENYUSHO

1 patent

OJI PAPER CO

1 patent