Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11331703 | Piercer plug and method of manufacturing the same | Yasuto Higashida, Yuichi Yamanari, Yuji Yamamoto, Tatsuya Miyai | 2022-05-17 |
| 11214855 | Piercer plug and method of manufacturing the same | Naoya Shirasawa, Tatsuya Miyai | 2022-01-04 |
| 10888906 | Method of manufacturing piercer plug | Yasuto Higashida, Naoya Shirasawa, Yuichi Yamanari | 2021-01-12 |
| 10300513 | Piercing plug and manufacturing method of piercing plug | Yosuke Tatebayashi, Yasuto Higashida, Kouji Nakaike, Takateru Inage | 2019-05-28 |
| 10150147 | Piercing plug | Atsushi Nosaka, Yasuto Higashida, Ryuutarou Ogata | 2018-12-11 |
| 9914159 | Method for producing plug for piercing-rolling | Tomohiro Yamamoto, Yasuto Higashida | 2018-03-13 |
| 9845525 | Equipment system for producing piercing-rolling plug | Tomohiro Yamamoto, Yasuto Higashida | 2017-12-19 |
| 9764366 | Method for regenerating a plug for use in a piercing machine | Yasuto Higashida, Kazuhiro Shimoda, Yosuke Tatebayashi | 2017-09-19 |
| 9695486 | Cr-containing austenitic alloy and method for producing the same | Yasuhiro Masaki, Manabu Kanzaki, Akihiro Uehira, Osamu Miyahara | 2017-07-04 |
| 9651175 | Seamless steel pipe for line pipe | Yuji Arai, Yukimasa Ueda, Kei Murata | 2017-05-16 |
| 9493860 | Chromium-containing austenitic alloy | Manabu Kanzaki, Yasuhiro Masaki, Akihiro Uehira, Osamu Miyahara | 2016-11-15 |
| 9352370 | Plug for hot tube-making | Yasuto Higashida | 2016-05-31 |
| 9333544 | Plug used in piercing machine | Yasuto Higashida, Kazuhiro Shimoda | 2016-05-10 |
| 8863564 | Lubricant composition for hot metal working and method of hot metal working using the same | Kazuhiro Shimoda, Tomio Yamakawa, Kazutaka Asabe, Hirokazu Okada, Sumio Iida +3 more | 2014-10-21 |
| 8846152 | Antioxidant agent and process for producing metallic material | Kazuhiro Shimoda, Tomio Yamakawa, Koji Muramatsu, Yuji Inoue, Junichi Nishimori +3 more | 2014-09-30 |
| 8815347 | Antioxidant agent and process for producing metallic material | Kazuhiro Shimoda, Keishi Matsumoto, Tomio Yamakawa, Shuichi Akiyama, Takahisa Kato | 2014-08-26 |
| 8613817 | Method for producing duplex stainless steel seamless pipe | Naoya Hirase, Tetsuya Nakanishi, Kazuhiro Shimoda, Hirokazu Okada, Tomio Yamakawa | 2013-12-24 |
| 8544306 | Plug, piercing-rolling mill, and method of producing seamless tube by using the same | Yasuto Higashida, Kazuhiro Shimoda, Tomio Yamakawa | 2013-10-01 |
| 8464568 | Production method of seamless pipe or tube, and oxidizing gas supply unit | Kouji Nakaike, Hiroshi Nogami | 2013-06-18 |
| 8307688 | Process for producing seamless stainless steel pipe | Toshihide Ono, Satoshi Matsumoto, Kouji Nakaike, Sumio Iida | 2012-11-13 |
| 8082768 | Piercing and rolling plug, method of regenerating such piercing and rolling plug, and equipment line for regenerating such piercing and rolling plug | Kazuhiro Shimoda, Kouji Nakaike, Naoya Hirase, 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 | Naoya Hirase, Yasuhiro Kouchi | 2011-11-29 |
| 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 | Sumio Iida, Mitsuru Yoshizawa, Koji Nakaike | 2011-11-29 |
| 8047039 | Process for producing stainless steel pipe | Satoshi Matsumoto, Toshihide Ono, Kouji Nakaike, Sumio Iida, Hiroshi Nogami | 2011-11-01 |
| 7469565 | Manufacturing method and cleaning equipment for seamless tube | Kouji Nakaike, Sumio Iida, Hiroki Kusuda, Masami Sakiyama | 2008-12-30 |