Inventor

YAMAKAWA KATSUYOSHI

JP38 patents

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

YAMAKAWA KATSUYOSHI

FUJI PHOTO FILM CO LTD

Silver halide color photographic material containing cyan dye-forming coupler

Method of producing cellulose polymers

Pyrrolotriazole azomethine dye, and heat transfer dye providing material containing a pyrrolotriazole azomethine dye

Dye-forming coupler, a silver halide color photographic material using same, and a method for processing the silver halide color photographic material

Silver halide color photographic light-sensitive material containing an emulsified dispersion of oleophilic fine particles obtained by dispersing a solution containing a cyan coupler and a polymer

Azomethine compound and oily magenta ink

Silver halide color photographic material

Pyrrolotriazole derivative and heat transfer dye providing material containing a pyrrolotriazole azomethine dye

Pyrrole ring-or condensed pyrrole ring-containing azomethine dye

Fluorescent lamp cover and lighting fixture

Process for producing cellulose acetate

Producing method of cellulose polymer

Dye forming couplers and silver halide color photosensitive material containing the same

Silver halide color photographic material

Silver halide color photographic light-sensitive material

Process for producing alkoxybenzene compound and aryloxybenzene compound

Silver halide color photographic material

Ultraviolet-absorbing film containing a fluorescent brightening agent

5-acyl-4,5,6,7-tetrahydrothieno (3,2-C)pyridine-2-carboxylic acid derivative and process for producing the same

4-acylaminophenylacetylenealcohol compounds

Process for preparing 1,1-disubstituted-1H-benzo e!indole compound and hydroxyl-substituted compound thereof

Method of manufacturing a 3-substituted-3-oxo-2-halopropionic acid amide compound and method of manufacturing a 3-substituted-3-oxo-2-(5,5-dimethylhydantoin-3-yl) propionic acid amide compound

Benzotriazolylacetyl compound

3-amino-5-o-chlorobenzyl-4,5,6,7-tetrahydrothieno[3,2-c]-pyridine-2-carboxylic acid compounds

Method for producing pyridine compounds

FUJIFILM CORP

Naphthalocyanine compound and method for producing the same

Method of producing near-infrared absorbing dye compound

Near-infrared-absorbing material and near-infrared-absorbing filter

Method of producing near-infrared absorbing dye compound

Aryl ethynyl phthalic acid derivative and method for producing the same

Naphthalocyanine dye and method for producing the same

Process for producing croconic acid or salt thereof

Near-infrared-absorbing material and near-infrared-absorbing filter

Black pigment, black pigment dispersion and black resin composition comprising the same

Method of producing amide compound

Method for producing δ-aminopentadienoate derivatives

JAPAN AIRLINES CO

Construction of truck for attractive type magnetically levitated vehicle

KIMURA KEIZO

Near-infrared absorbing material