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Inventor

Sigeru Yonekawa

Inventor
Kanagawa, JP

Overview

2→
Patents
1976–1978
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 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 bonds100%
PatentTitleYear
4,121,031'Process for producing random copolymers'19783,980,624'Process for producing rubbery polymers and copolymers having branched structures'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to ASAHI CHEMICAL IND (1)· patent assignee history
1976Based in Yokohama, JP· patent location history
1978Patents assigned to ISHIDA TAKASHI (1)· patent assignee history
1978Patents assigned to MINEKAWA SABURO (1)· patent assignee history
1978Patents assigned to TABATA HARURO (1)· patent assignee history
1978Patents assigned to TSUCHIDA SATOSHI (1)· patent assignee history
1978Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ASAHI CHEMICAL IND11976
ISHIDA TAKASHI11978
MINEKAWA SABURO11978
TABATA HARURO11978
TSUCHIDA SATOSHI11978
Locations
LocationPatentsSpan
Kanagawa, JP11978
Yokohama, JP11976