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Takao Kiyohara
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Ibaraki, JP
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last 30 patents
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Patent Grant
Antitumor and immunosuppressive 4-carbamoylimidazolium-5-olate deri...
Patent number
4,410,696
Issue date
Oct 18, 1983
Sumitomo Chemical Company, Limited
Toshio Atsumi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Antitumor and immunosuppressive 4-carbamoyl imidazolium-5-olate der...
Patent number
4,346,096
Issue date
Aug 24, 1982
Sumitomo Chemical Company, Limited
Tetsutaro Sanjiki
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Antitumor and immunosuppresive 4-carbamoyl imidazolium-5-olate deri...
Patent number
4,332,806
Issue date
Jun 1, 1982
Sumitomo Chemical Company, Limited
Toshio Atsumi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Antitumor and immunosuppressive 4-carbamoyl imidazolium-5-olate der...
Patent number
4,317,825
Issue date
Mar 2, 1982
Sumitomo Chemical Company, Limited
Toshio Atsumi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Novel anti-tumor substance and preparation thereof
Patent number
4,209,507
Issue date
Jun 24, 1980
Sumitomo Chemical Company, Limited
Shigeo Ogino
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Imidazole acetic acid derivatives
Patent number
4,209,525
Issue date
Jun 24, 1980
Sumitomo Chemical Company, Limited
Toshio Atsumi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Novel therapeutic application of 4-carbamoyl-5-hydroxyimidazole
Patent number
4,181,731
Issue date
Jan 1, 1980
Sumitomo Chemical Company, Limited
Noboru Yoshida
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE