Inventor

Kohichi Okuno

Inventor
Izumiotsu, JP

Overview

5→
Patents
1987–2021
Patent span
Chemistry
Primary field (CPC C)

Patents· 5 as inventor

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

C08Gprimary
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds33%
C08LCompositions of macromolecular compounds25%
C08JWorking-up17%
Y10TTechnical subjects covered by former us classification17%
B60CVehicle tyres8%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1990Patents assigned to SUMITOMO CHEMICAL CO (4)· patent assignee history
1987Based in Osaka, JP· patent location history
1989–1990Based in Izumiotsu, JP· patent location history
2021Patents assigned to SUMITOMO RUBBER IND (1)· patent assignee history
2021Based in Kobe, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SUMITOMO CHEMICAL CO41987–1990
SUMITOMO RUBBER IND12021
Locations
LocationPatentsSpan
Izumiotsu, JP31989–1990
Kobe, JP12021
Osaka, JP11987