Oil country tubular goods with dual phase structure and producing method thereof
US-9188253-B2 · Nov 17, 2015 · US
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Asahi Hitoshi patents in 2015
Asahi Hitoshi was listed as an assignee on 4 patent publications in 2015.
| Metric | Value |
|---|---|
| Company | Asahi Hitoshi |
| Year | 2015 |
| Patents | 4 |
Patents
Representative publications for Asahi Hitoshi in 2015.
Electric resistance welded oil country tubular goods and manufacturing method of electric resistance welded oil country tubular goods
US-9126283-B2 · Sep 8, 2015 · US
Method of production of electric resistance welded steel pipe and high Si or high Cr electric resistance welded steel pipe
US-9050681-B2 · Jun 9, 2015 · US
High-strength welded steel pipe and method for producing the same
US-8974610-B2 · Mar 10, 2015 · US
Top CPC classifications
Most common classification codes for Asahi Hitoshi in 2015.
| CPC | Patents |
|---|---|
| B23K2101/06 | 3 |
| B23K2103/04 | 3 |
| B23K2201/06 | 3 |
| B23K2203/04 | 3 |
| C21D8/10 | 3 |
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