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Kazufumi KAWAHARA
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Fine cellulose fibers and production method therefor, nonwoven fabr...
Patent number
12,163,287
Issue date
Dec 10, 2024
Asahi Kasei Kabushiki Kaisha
Hirofumi Uchimura
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Resin composite film including cellulose microfiber layer
Patent number
10,703,070
Issue date
Jul 7, 2020
Asahi Kasei Kabushiki Kaisha
Yamato Saito
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Fine cellulose fiber sheet
Patent number
10,323,354
Issue date
Jun 18, 2019
Asahi Kasei Fibers Corporation
Kazufumi Kawahara
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Patents Applications
last 30 patents
Information
Patent Application
Highly Heat-Resistant Resin Composite Including Chemically Modified...
Publication number
20240309208
Publication date
Sep 19, 2024
Asahi Kasei Kabushiki Kaisha
Hirofumi Ono
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Fine Cellulose Fibers and Production Method Therefor, Nonwoven Fabr...
Publication number
20240263396
Publication date
Aug 8, 2024
Asahi Kasei Kabushiki Kaisha
Hirofumi Uchimura
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Composition Containing Cellulose Nanofibers
Publication number
20240150555
Publication date
May 9, 2024
Asahi Kasei Kabushiki Kaisha
Atsushi Bamba
B60 - VEHICLES IN GENERAL
Information
Patent Application
Composition Containing Cellulose Nanofibers
Publication number
20240124690
Publication date
Apr 18, 2024
Asahi Kasei Kabushiki Kaisha
Ryosuke Ozawa
B60 - VEHICLES IN GENERAL
Information
Patent Application
Highly Heat-Resistant Resin Composite Including Chemically Modified...
Publication number
20210222006
Publication date
Jul 22, 2021
Asahi Kasei Kabushiki Kaisha
Hirofumi Ono
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
FINE CELLULOSE FIBER SHEET
Publication number
20190257032
Publication date
Aug 22, 2019
ASAHI KASEI FIBERS CORPORATION
Kazufumi KAWAHARA
B32 - LAYERED PRODUCTS
Information
Patent Application
Resin Composite Film Including Cellulose Microfiber Layer
Publication number
20190118508
Publication date
Apr 25, 2019
Asahi Kasei Kabushiki Kaisha
Yamato Saito
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
FINE CELLULOSE FIBER SHEET
Publication number
20160177512
Publication date
Jun 23, 2016
ASAHI KASEI FIBERS CORPORATION
Kazufumi KAWAHARA
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...