Inventor

Toshio Hironaka

Inventor
Tokuyama, JP

Overview

9→
Patents
1976–1994
Patent span
Chemistry
Primary field (CPC C)

Patents· 9 as inventor

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

C07Cprimary
C07CAcyclic or carbocyclic compounds56%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry25%
C07BGeneral methods of organic chemistry6%
C07DHeterocyclic compounds6%
C10GCracking hydrocarbon oils6%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1990Patents assigned to TOYO SODA MFG CO LTD (4)· patent assignee history
1976Based in Shinnanyo, JP· patent location history
1985–1994Based in Tokuyama, JP· patent location history
1988–1994Patents assigned to TOSOH CORP (5)· patent assignee history
1988–1989Based in Yamaguchi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOSOH CORP51988–1994
TOYO SODA MFG CO LTD41976–1990
Locations
LocationPatentsSpan
Tokuyama, JP61985–1994
Yamaguchi, JP21988–1989
Shinnanyo, JP11976