Inventor

Kazuhiko Onuma

Inventor
Machida, JP

Overview

5→
Patents
1977–1990
Patent span
Performing operations
Primary field (CPC B)

Patents· 5 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%
B01DSeparation22%
C04BLime, magnesia11%
C07HSugars11%
C10GCracking hydrocarbon oils11%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1990Patents assigned to MITSUBISHI CHEM IND (5)· patent assignee history
1977–1990Based in Machida, JP· patent location history
1977Based in Kawasaki, JP· patent location history
1984–1985Patents assigned to ASIA OIL CO LTD (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBISHI CHEM IND51977–1990
ASIA OIL CO LTD21984–1985
Locations
LocationPatentsSpan
Machida, JP41977–1990
Kawasaki, JP11977