Inventor

Fumio Kumata

Inventor
Kanagawa, JP

Overview

6→
Patents
1985–1997
Patent span
Performing operations
Primary field (CPC B)

Patents· 6 as inventor

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

B01Jprimary
B01JChemical or physical processes, e.g. catalysis or colloid chemistry44%
C07CAcyclic or carbocyclic compounds33%
C10GCracking hydrocarbon oils11%
F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact11%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–1997Patents assigned to MITSUBISHI OIL CO (5)· patent assignee history
1985–1997Based in Kanagawa, JP· patent location history
1994Patents assigned to RES ASS FOR THE UTILIZATION OF (1)· patent assignee history
1995Patents assigned to CHIYODA CHEM ENG CONSTRUCT CO (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBISHI OIL CO51985–1997
CHIYODA CHEM ENG CONSTRUCT CO11995
RES ASS FOR THE UTILIZATION OF11994
Locations
LocationPatentsSpan
Kanagawa, JP61985–1997