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Inventor

Minoru Sugita

Inventor
Tokyo, JP

Overview

3→
Patents
1977
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

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

C10Gprimary
C10GCracking hydrocarbon oils50%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry25%
C07DHeterocyclic compounds25%
PatentTitleYear
4,046,670'Method for the treatment of heavy petroleum oil'19774,042,487'Method for the treatment of heavy petroleum oil'19774,017,622'Piperazine derivatives'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977Patents assigned to DAINIPPON PHARMACEUTICAL CO (1)· patent assignee history
1977Patents assigned to KUREHA CHEMICAL IND CO LTD (1)· patent assignee history
1977Patents assigned to KUREHA KAGAKO KOGYO KABUSHIKI (1)· patent assignee history
1977Based in Tokyo, JP· patent location history
1977Based in Kyoto, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DAINIPPON PHARMACEUTICAL CO11977
KUREHA CHEMICAL IND CO LTD11977
KUREHA KAGAKO KOGYO KABUSHIKI11977
Locations
LocationPatentsSpan
Tokyo, JP21977
Kyoto, JP11977