Nobutaka Izumichi

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Ashiya, JP

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Patents Grantslast 30 patents

Information Patent Grant
Crystalline parahydroxybenzoic acid anhydride and process for prepa...
- Patent number 7,304,182
- Issue date Dec 4, 2007
- Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo
- Ryuzo Ueno
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Granule of parahydroxybenzoic acid or parahydroxybenzoic ester and...
- Patent number 6,673,962
- Issue date Jan 6, 2004
- Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo
- Ryuzo Ueno
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Granules of 2-hydroxynaphthalene-3-carboxylic acid and method for p...
- Patent number 6,562,998
- Issue date May 13, 2003
- Kabushiki Kaisha Ueno Seiyako Oyo Kenkyujo
- Ryuzo Ueno
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Crystal of 2-hydroxynaphthalene-3-carboxylic acid and process for t...
- Patent number 6,403,827
- Issue date Jun 11, 2002
- Kabushiki Kaisha Ueno Seiyaku Oyo K.
- Ryuzo Ueno
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Crystal of p-hydroxybenzoic anhydride and process for producing the...
- Publication number 20060264670
- Publication date Nov 23, 2006
- Ryuzo Ueno
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for dehydrating hydrous sodium beta-naphtholate
- Publication number 20050043564
- Publication date Feb 24, 2005
- KABUSHIKI KAISHA UENO SEIYAKU OYO KENKYUJO
- Ryuzo Ueno
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Granule of parahydroxybenzoic acid or parahydroxybenzoic ester and...
- Publication number 20030160205
- Publication date Aug 28, 2003
- Ryuzo Ueno
- C07 - ORGANIC CHEMISTRY