Inventor

Takeo Oyamada

Inventor
Ichihara, JP

Overview

10→
Patents
1976–1992
Patent span
Chemistry
Primary field (CPC C)

Patents· 10 as inventor

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

C08Fprimary
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds32%
C08LCompositions of macromolecular compounds20%
C09JAdhesives16%
D21HPulp compositions8%
Y10TTechnical subjects covered by former us classification8%
C09DCoating compositions, e.g. paints, varnishes or lacquers4%
D04HMaking textile fabrics, e.g. from fibres or filamentary material4%
D06MTreatment, not provided for elsewhere in class d06, of fibres, threads, yarns, fabrics, feathers or fibrous goods made from such materials4%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1992Patents assigned to SUMITOMO CHEMICAL CO (10)· patent assignee history
1976–1981Based in Ichihara, JP· patent location history
1989–1992Based in Chiba, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SUMITOMO CHEMICAL CO101976–1992
Locations
LocationPatentsSpan
Ichihara, JP71976–1981
Chiba, JP31989–1992