Company Filing History:

4 out of 487

Nippon Kokan Kabushiki Kaisha

patents

Years Active: 1978-1982

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4 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4341938 - Method and apparatus for seam-welding steel pipes (1982-07-27),

2. 4238659 - Preventing magnetization of pipe blank in GMA welding (1980-12-09),

3. 4110589 - Method for longitudinally seam-welding pipe-blank for welded steel pipe (1978-08-29),

4. 4107503 - Method for eliminating residual magnetism in pipe-blank for welded steel (1978-08-15),

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Takashi Nagamine

Company Filing History:

Years Active: 1978-1982