Kanji Tanaka

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Ohita, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing high purity electrolytic copper
- Patent number 4,874,436
- Issue date Oct 17, 1989
- Nippon Mining Co., Ltd
- Takashi Ogata
- C30 - CRYSTAL GROWTH
Information Patent Grant
Copper wires used for transmitting sounds or images
- Patent number 4,792,369
- Issue date Dec 20, 1988
- Nippon Mining Co., Ltd
- Takashi Ogata
- C30 - CRYSTAL GROWTH