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Inventor

Harumasa Tanabe

Inventor
Kobe, JP

Overview

2→
Patents
1990–1991
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 as inventor

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

C07Cprimary
C07CAcyclic or carbocyclic compounds50%
C07DHeterocyclic compounds50%
PatentTitleYear
4,992,619'Process for separating methyl substituted naphthalene by crystallization under pressure'19914,966,978'Process for separating indole in refined form'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–1991Patents assigned to KOBE STEEL LTD (2)· patent assignee history
1990–1991Based in Kobe, JP· patent location history
1991Patents assigned to SHOWA SHELL SEKIYU (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KOBE STEEL LTD21990–1991
SHOWA SHELL SEKIYU11991
Locations
LocationPatentsSpan
Kobe, JP21990–1991