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Tanemi Asai
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Hyogo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Process for adjusting degree of acetyl substitution of cellulose ac...
Patent number
8,455,637
Issue date
Jun 4, 2013
Daicel Chemical Industries, Ltd.
Tohru Shibata
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for adjusting the degree of substitution with acetyl group o...
Patent number
7,671,193
Issue date
Mar 2, 2010
Daicel Chemical Industries, Ltd.
Tohru Shibata
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for producing a tobacco filter material
Patent number
6,344,239
Issue date
Feb 5, 2002
Daicel Chemical Industries, Ltd.
Tanemi Asai
A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
Information
Patent Grant
Fatty acid ester of cellulose, cellulose diacetate and processes fo...
Patent number
5,977,346
Issue date
Nov 2, 1999
Daicel Chemical Industries, Ltd.
Shiro Saka
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Tobacco filter material and a method for producing the same
Patent number
5,856,006
Issue date
Jan 5, 1999
Daicel Chemical Industries, Ltd.
Tanemi Asai
A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
Patents Applications
last 30 patents
Information
Patent Application
Process for adjusting degree of acetyl substitution of cellulose ac...
Publication number
20110166340
Publication date
Jul 7, 2011
Tohru Shibata
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
METHOD OF ADJUSTING THE DEGREE OF SUBSTITUTION WITH ACETYL GROUP OF...
Publication number
20090062525
Publication date
Mar 5, 2009
Daicel Chemical Industries, Ltd.
Tohru SHIBATA
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Method for adjusting the degree of substitution with acetyl group o...
Publication number
20040024198
Publication date
Feb 5, 2004
Tohru Shibata
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...