Susumu Ishizaka

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Kodaira, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing multiple-piece graphite crucible
- Patent number 5,966,794
- Issue date Oct 19, 1999
- Nippon Carbon Co., Ltd.
- Susumu Ishizaka
- B28 - WORKING CEMENT, CLAY, OR STONE