Asumaru Nakamura

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing aromatic imide polymer hollow filaments
- Patent number 4,938,902
- Issue date Jul 3, 1990
- Director General of Agency of Industrial Science and Technology
- Asumaru Nakamura
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Aromatic imide polymer hollow filaments
- Patent number 4,830,640
- Issue date May 16, 1989
- Agency of Industrial Science and Technology
- Asumaru Nakamura
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Process for preparing aromatic polyimide semipermeable membranes
- Patent number 4,378,324
- Issue date Mar 29, 1983
- Ube Industries, Ltd.
- Hiroshi Makino
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...