LexDanaLexDanabeta
Inventor

Takeji Sakasai

Inventor
Urawa, JP

Overview

3→
Patents
1991–1992
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.

C07Cprimary
C07CAcyclic or carbocyclic compounds60%
C07DHeterocyclic compounds40%
PatentTitleYear
5,103,022'Process for producing an optically active aminoketone derivative'19925,057,535'Derivatives of an aminoketone'19914,990,536'Immunopotentiator and spergualin-related compound therefor'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1992Patents assigned to NIPPON KAYAKU KK (3)· patent assignee history
1991Patents assigned to TAKARA SHUZO CO (1)· patent assignee history
1991–1992Based in Urawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON KAYAKU KK31991–1992
TAKARA SHUZO CO11991
Locations
LocationPatentsSpan
Urawa, JP31991–1992