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Akihiko Nakahara
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Tokuyama, JP
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last 30 patents
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Patent Grant
Fluorine-containing resin molded articles
Patent number
5,712,040
Issue date
Jan 27, 1998
Tokuyama Corporation
Akihiko Nakahara
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Process for preparation of perfluorinated copolymer
Patent number
4,948,844
Issue date
Aug 14, 1990
Tokuyama Soda Kabushiki Kaisha
Akihiko Nakahara
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for preparation of fluorine containing polymer films
Patent number
4,680,355
Issue date
Jul 14, 1987
Tokuyama Soda Kabushiki Kaisha
Akihiko Nakahara
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for preparation of fluorine-containing compound having carb...
Patent number
4,587,274
Issue date
May 6, 1986
Tokuyama Soda Kabushiki Kaisha
Akihiko Nakahara
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for preparing fluorine-containing polymers having carboxyl...
Patent number
4,294,943
Issue date
Oct 13, 1981
Tokuyama Soda Kabushiki Kaisha
Yasuharu Onoue
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for preparing fluorine-containing polymers having carboxyl...
Patent number
4,200,711
Issue date
Apr 29, 1980
Tokuyama Soda Kabushiki Kaisha
Yasuharu Onoue
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...