Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9468959 | Production method of seamless tube using round bar made of high Cr-high Ni alloy | Takanori Satou | 2016-10-18 |
| 8863564 | Lubricant composition for hot metal working and method of hot metal working using the same | Kazuhiro Shimoda, Tomio Yamakawa, Kazutaka Asabe, Hirokazu Okada, Yasuyoshi Hidaka +3 more | 2014-10-21 |
| 8613817 | Method for producing duplex stainless steel seamless pipe | Tetsuya Nakanishi, Kazuhiro Shimoda, Hirokazu Okada, Tomio Yamakawa, Yasuyoshi Hidaka | 2013-12-24 |
| 8104316 | Piercing mill | Tomio Yamakawa, Kazuhiro Shimoda | 2012-01-31 |
| 8082768 | Piercing and rolling plug, method of regenerating such piercing and rolling plug, and equipment line for regenerating such piercing and rolling plug | Yasuyoshi Hidaka, Kazuhiro Shimoda, Kouji Nakaike, Yasuto Higashida, Takateru Inage +5 more | 2011-12-27 |
| 8065900 | Method of manufacturing plug used to pierce and roll metal material, method of manufacturing metal pipe and plug used to pierce and roll metal material | Yasuyoshi Hidaka, Yasuhiro Kouchi | 2011-11-29 |
| 7866199 | Method for manufacturing seamless steel pipe made of high Cr-high Ni alloy steel | Tomio Yamakawa, Kazuhiro Shimoda | 2011-01-11 |
| 7814771 | Method for Cr-plating of mandrel bars, the mandrel bar, and process for producing seamless tubes using the method and the mandrel bar | Masaya Kimoto | 2010-10-19 |