Takaaki Higashiizumi

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Tukuba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing isotropic pitch, activated carbon fibers and c...
- Patent number 6,228,343
- Issue date May 8, 2001
- Mitsubishi Gas Chemical Company, Inc.
- Takahumi Yoshimura
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Method for producing isotropic pitch, activated carbon fibers and c...
- Patent number 5,944,980
- Issue date Aug 31, 1999
- Mitsubishi Gas Chemical Company Co., Inc.
- Takahumi Yoshimura
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING