Katsuhiko Hamanaka

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Fuji-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing hollow yarn film
- Patent number 7,128,861
- Issue date Oct 31, 2006
- ASAHI KASEI CHEMICALS CORPORATION
- Katsuhiko Hamanaka
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Hollow thread film cartridge, hollow thread film module using the c...
- Patent number 7,083,726
- Issue date Aug 1, 2006
- Asahi Kasei Kabushiki Kaisha
- Akihiro Watanabe
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method for synthesizing trioxane
- Patent number 4,563,536
- Issue date Jan 7, 1986
- Asahi Kasei Kogyo Kabushiki Kaisha
- Koichi Yoshida
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for synthesizing trioxane
- Patent number 4,381,397
- Issue date Apr 26, 1983
- Asahi Kasei Kogyo Kabushiki Kaisha
- Koichi Yoshida
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for separating trioxane
- Patent number 4,332,644
- Issue date Jun 1, 1982
- Asahi Kasei Kogyo Kabushiki Kaisha
- Katsuhiko Hamanaka
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Hollow thread film cartridge, hollow thread film module using the c...
- Publication number 20040045893
- Publication date Mar 11, 2004
- Akihiro Watanabe
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Application
Method for producing hollow yarn film
- Publication number 20030107150
- Publication date Jun 12, 2003
- Katsuhiko Hamanaka
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING