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Inventor

Masami Tsuboshima

Inventor
Ibaraki-shi, JP

Overview

1→
Patents
1989
Patent span
Human necessities
Primary field (CPC A)

Patents· 1 as inventor

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

A61Kprimary
A61KPreparations for medical, dental or toiletry purposes33%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations33%
C07CAcyclic or carbocyclic compounds33%
PatentTitleYear
4,812,457'Prostaglandin derivatives'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989Patents assigned to RESEARCH DEV CORP (1)· patent assignee history
1989Patents assigned to TSUBOSHIMA MASAMI (1)· patent assignee history
1989Based in Ibaraki-shi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RESEARCH DEV CORP11989
TSUBOSHIMA MASAMIself11989
Locations
LocationPatentsSpan
Ibaraki-shi, JP11989