Tooru Tokumaru

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Ooita, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for production of cresols
- Patent number 5,600,026
- Issue date Feb 4, 1997
- Sumitomo Chemical Company, Limited
- Kiyoshi Ikimi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing aromatic amide compounds
- Patent number 5,442,114
- Issue date Aug 15, 1995
- Sumitomo Chemical Company, Limited
- Kan Takamine
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for production of cresols
- Patent number 5,399,791
- Issue date Mar 21, 1995
- Suitomo Chemical Company, Limited
- Kiyoshi Ikimi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for producing hydroxy-containing alkylated aromatic compounds
- Patent number RE34076
- Issue date Sep 22, 1992
- Sumitomo Chemical Company Limited
- Akira Takeshita
- 568 - Organic compounds
Information Patent Grant
Method for producing hydroxy-containing alkylated aromatic compounds
- Patent number 4,912,264
- Issue date Mar 27, 1990
- Sumitomo Chemical Company, Limited
- Akira Takeshita
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing O,O-di-lower-alkylchlorothiophosphate
- Patent number 4,769,494
- Issue date Sep 6, 1988
- Sumitomo Chemical Company, Limited
- Motomasa Ohsu
- C07 - ORGANIC CHEMISTRY