Inventor

Yoshiichi Kumagai

Inventor
Kanagawa, JP

Overview

1→
Patents
1997
Patent span
Performing operations
Primary field (CPC B)

Patents· 1 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 chemistry33%
C07CAcyclic or carbocyclic compounds33%
F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact33%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1997Patents assigned to MITSUBISHI OIL CO (1)· patent assignee history
1997Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBISHI OIL CO11997
Locations
LocationPatentsSpan
Kanagawa, JP11997