Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10227540 | Powder lubricant composition and method for manufacturing seamless steel pipe | Masami Imamura, Takayuki Fukushima | 2019-03-12 |
| 8999900 | Two-component anti-seizure agent for hot metal working process, and method of manufacturing seamless pipe using thereof | Masami Imamura, Yuuji Tanaka, Kazuhiro Shimoda, Hirofumi Hori, Akira Motoki +1 more | 2015-04-07 |
| 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 |
| 8307688 | Process for producing seamless stainless steel pipe | Yasuyoshi Hidaka, Toshihide Ono, Satoshi Matsumoto, Kouji Nakaike | 2012-11-13 |
| 8288325 | Lubricant composition for hot forming | Kenichi Sasaki, Shizuo Mori, Kazuo Tanaka | 2012-10-16 |
| 8082767 | Lubricant for hot metal working and powder lubricant composition for hot metal working | Kenichi Sasaki, Shizuo Mori | 2011-12-27 |
| 8065901 | Mandrel bar for high-alloy rolling, method for surface treating a mandrel bar, method for producing mandrel bar, and method for operating seamless pipe mill | Yasuyoshi Hidaka, Mitsuru Yoshizawa, Koji Nakaike | 2011-11-29 |
| 8047039 | Process for producing stainless steel pipe | Yasuyoshi Hidaka, Satoshi Matsumoto, Toshihide Ono, Kouji Nakaike, Hiroshi Nogami | 2011-11-01 |
| 8024953 | Lubricant for hot working and method for producing seamless steel pipe | Kenichi Saito | 2011-09-27 |
| 7919439 | Powdered lubricant composition for hot working and method for manufacturing seamless tubes | Kenichi Sasaki, Shizuo Mori, Atsushi Ito | 2011-04-05 |
| 7861565 | Method for applying lubricant onto mandrel bar, method for controlling thickness of lubricant film on mandrel bar, and method for manufacturing seamless steel pipe | Kenichi Saito | 2011-01-04 |
| 7816306 | Lubricant composition for hot forming | Kenichi Sasaki, Shizuo Mori, Kazuo Tanaka | 2010-10-19 |
| 7661284 | Application method of Cr-plated mandrel bar for hot rolling | — | 2010-02-16 |
| 7469565 | Manufacturing method and cleaning equipment for seamless tube | Kouji Nakaike, Yasuyoshi Hidaka, Hiroki Kusuda, Masami Sakiyama | 2008-12-30 |
| 7308812 | Process for producing seamless steel pipe | Tetsuya Nakanishi | 2007-12-18 |
| 7165431 | Cr-plated mandrel bar for manufacturing hot seamless tube and method of manufacturing the same | Toshiro Anraku, Masami Imamura, Hirofumi Hori | 2007-01-23 |