Inventor

MATSUKAWA HIROHARU

43 patents

Patents

43 patents

US4251386AFeb 17, 1981

Method for preparing microcapsules

FUJI PHOTO FILM CO LTD145 citations97

US4356109AOct 26, 1982

Method for preparing microcapsules

FUJI PHOTO FILM CO LTD63 citations96

US4342739AAug 3, 1982

Novel material for immunological assay of biochemical components and a process for the determination of said components

FUJI PHOTO FILM CO LTD82 citations96

US4221710ASep 9, 1980

Process for preparing microcapsules by polymerization of urea and formaldehyde in the presence of gum arabic

FUJI PHOTO FILM CO LTD60 citations96

US4073968AFeb 14, 1978

MATSUKAWA HIROHARU

Patents

Method for preparing microcapsules

Method for preparing microcapsules

Novel material for immunological assay of biochemical components and a process for the determination of said components

Process for preparing microcapsules by polymerization of urea and formaldehyde in the presence of gum arabic

Method for desensitization of a color developer

Process for the production of oil-containing microcapsules

Process for hardening microcapsules containing hydrophobic oil droplets

Desensitizing composition

Method of forming microcapsule films having low porosity

Process for hardening microcapsules

Pressure measurement sheet and method of using the same

Coated pressure sensitive copying paper

Heat-sensitive recording material

Process for the production of microcapsules

Pressure sensitive recording sheet

Microcapsules for immune response

Process for preparing microcapsule reagents for immunological response

Production of microcapsules

Pressure-sensitive recording sheet

Heat-sensitive recording paper

Heat-sensitive recording paper

Heat sensitive recording material

Desensitizer composition

Heat-sensitive recording sheets

Color developing ink

Recording sheet

Pressure-measuring sheet

Method for fanning each set of multi-ply sheets

Desensitizer composition

Method of forming color images employing desensitizing agents

Method of desensitization using desensitizing composition

Pressure-sensitive copying sheet

Heat-sensitive recording material

Microcapsule sheet for pressure-sensitive recording paper

Process for producing heat-sensitive recording paper

Heat-sensitive recording materials

Process for producing developer sheet for pressure-sensitive recording paper

Process for preparing microcapsules containing hydrophobic oil drops

Heat-sensitive recording papers

Process for preparing oil-containing microcapsules

Heat sensitive recording paper

Microcapsule coated sheet for pressure sensitive copying paper

Heat-sensitive recording paper