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Inventor

Seizo Konishi

Inventor
Minoo, JP

Overview

3→
Patents
1976–1981
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%
C07DHeterocyclic compounds17%
D06PDyeing or printing textiles17%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests17%
PatentTitleYear
4,257,770'Disazo dye composition'19813,977,827'Process for dyeing acid-modified polyester fibers'19763,974,178'Naphthostyril cationic dyes'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1981Patents assigned to SUMITOMO CHEMICAL CO (3)· patent assignee history
1976–1981Based in Minoo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SUMITOMO CHEMICAL CO31976–1981
Locations
LocationPatentsSpan
Minoo, JP31976–1981