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Inventor

Katsumi Fukuda

Inventor
Osaka, JP

Overview

3→
Patents
1992–1994
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C09Bprimary
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments50%
D06PDyeing or printing textiles33%
C09DCoating compositions, e.g. paints, varnishes or lacquers17%
PatentTitleYear
5,290,347'Salt-forming type dye, and its concentrated solution composition and ink composition'19945,160,504'Method of dyeing leather with metal complex dyes comprised of metalizable azo compounds'19925,095,100'Metal complex dyes and preparation thereof'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–1994Patents assigned to ORIENT CHEMICAL IND (3)· patent assignee history
1992–1994Based in Osaka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ORIENT CHEMICAL IND31992–1994
Locations
LocationPatentsSpan
Osaka, JP31992–1994