Inventor

Akira Matsubara

Inventor

Yokohama, JP

Overview

1981–1997

Patent span

Chemistry

Primary field (CPC C)

Patents· 18 as inventor

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

C07Dprimary

C07DHeterocyclic compounds82%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations18%

PatentTitleYear

5,602,160'Aminoketone derivatives and use thereof'1997 5,498,619'Aminoketone derivative and use thereof'1996 5,447,946'Hydantoin derivatives for treating complications of diabetes'1995 5,338,857'Aminoketone derivatives of 1,2-oxazole and use thereof'1994 5,194,606'Preparation process of aminoketones'1993 5,112,841'Imidazole derivatives and antiepileptics comprising said imidazole derivatives as effective ingredients'1992 5,055,585'Preparation process of aminoketones'1991 5,001,240'Process for preparing optically active hydantoins'1991 4,985,574'Hydantoin derivatives for treating complications of diabetes'1991 4,985,573'Hydantoin derivatives for treating complications of diabetes'1991 4,978,758'Hydantoin derivatives for treating complications of diabetes'1990 4,861,792'Hydantoin derivatives for treating complications of diabetes'1989 4,760,078'Immunomodulator 1,2-dithiol-3-thione derivative composition, use method and process of producing the same'1988 4,740,517'Antidiabetic spiro-3-heteroazolidines'1988 4,296,112'Cephalosporins'1981 4,283,398'Cephalosporins'1981 4,273,932'4-Hydroxy-5,6,7,8-tetrahydroquinoline-3-carboxylic acids and derivatives'1981 4,263,302'Quinolinecarboxylic acid substituted penicillins and pharmaceutical compositions containing the same'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1997Patents assigned to MITSUI TOATSU CHEMICALS (11)· patent assignee history

1981–1993Based in Yokohama, JP· patent location history

1988–1995Patents assigned to SANWA KAGAKU KENKYUSHO CO (6)· patent assignee history

1988–1995Based in Owariasahi, JP· patent location history

1991Patents assigned to SANWA KAGAKU KENKYYUSHO CO LTD (1)· patent assignee history

1991Based in Owari Asahi, JP· patent location history

1994–1997Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MITSUI TOATSU CHEMICALS	11	1981–1997
SANWA KAGAKU KENKYUSHO CO	6	1988–1995
SANWA KAGAKU KENKYYUSHO CO LTD	1	1991

Locations

Location	Patents	Span
Yokohama, JP	8	1981–1993
Owariasahi, JP	6	1988–1995
Kanagawa, JP	3	1994–1997
Owari Asahi, JP	1	1991