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Inventor

Hiroyuki Kawamura

Inventor
Ichikawa, JP

Overview

8→
Patents
1980–1999
Patent span
Chemistry
Primary field (CPC C)

Patents· 8 as inventor

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

C07Dprimary
C07DHeterocyclic compounds39%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations22%
C07CAcyclic or carbocyclic compounds22%
A61KPreparations for medical, dental or toiletry purposes11%
Y02PClimate change mitigation technologies in the production or processing of goods6%
PatentTitleYear
5,885,990'Substituted amidinonaphthyl ester derivative'19995,532,267'Amidinonaphthyl furancarboxylate derivatives and acid addition salts therof'19965,480,899'Oxazolidine derivatives and pharmaceutically acceptable salts thereof'19965,145,865'Phenylcarboxylic acid derivatives having hetero ring'19924,999,378'Phenylcarboxylic acid derivatives'19914,824,834'Pyrazolotriazine compounds'19894,598,077'Amidine derivatives and cardiotonic compositions'19864,182,897'Amino- or guanidino-phenylpropionic acid derivatives'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–1996Patents assigned to TORII & CO LTD (3)· patent assignee history
1980–1999Based in Ichikawa, JP· patent location history
1989–1992Patents assigned to OTSUKA PHARMA CO LTD (3)· patent assignee history
1989–1992Based in Otsu, JP· patent location history
1996Patents assigned to TAIHO PHARMACEUTICAL CO LTD (1)· patent assignee history
1999Patents assigned to TORII PHARMACEUTICAL CO LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
OTSUKA PHARMA CO LTD31989–1992
TORII & CO LTD31980–1996
TAIHO PHARMACEUTICAL CO LTD11996
TORII PHARMACEUTICAL CO LTD11999
Locations
LocationPatentsSpan
Ichikawa, JP51980–1999
Otsu, JP31989–1992