Shuji Nakatsuka

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Patents Grantslast 30 patents

Information Patent Grant
Cellulose compound hollow fiber membrane
- Patent number 6,632,366
- Issue date Oct 14, 2003
- Daicel Chemical Industries, Ltd.
- Shuji Nakatsuka
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Cellulose acetate semipermeable membrane and process for producing...
- Patent number 6,372,136
- Issue date Apr 16, 2002
- Daicel Chemical Industries, Ltd.
- Shuji Nakatsuka
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Porous films, process for producing the same, and laminate films an...
- Patent number 6,177,181
- Issue date Jan 23, 2001
- Daicel Chemical Industries, Ltd.
- Toyozo Hamada
- B32 - LAYERED PRODUCTS