Issued Patents All Time
Showing 1–25 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12383989 | TIG welding filler metal and method for producing weld joint using the same | Kazufumi Watanabe, Atsushi Takada, Akiyoshi ANDO, Keiji Ueda | 2025-08-12 |
| 12139780 | Hot-rolled steel sheet for electric resistance welded steel pipe and method for manufacturing the same, electric resistance welded steel pipe and method for manufacturing the same, line pipe, and building structure | Akihide Matsumoto, Atsushi Matsumoto, Shinsuke Ide | 2024-11-12 |
| 11945020 | Metal pipe and method for manufacturing metal pipe | Akihide Matsumoto, Atsushi Matsumoto, Shinsuke Ide | 2024-04-02 |
| 11484927 | Clad welded pipe or tube and method of producing same | Atsushi Matsumoto, Shinsuke Ide, Akihide Matsumoto | 2022-11-01 |
| 11079045 | Electric resistance welded clad steel pipe or tube and method of producing same | Shinsuke Ide, Akihide Matsumoto, Atsushi Matsumoto | 2021-08-03 |
| 11053564 | High strength thick-walled electric-resistance-welded steel pipe for deep-well conductor casing, method for manufacturing the same, and high-strength thick-walled conductor casing for deep wells | Sota Goto, Yukihiko Okazaki | 2021-07-06 |
| 11041223 | High strength thick-walled electric-resistance-welded steel pipe for deep-well conductor casing, method for manufacturing the same, and high strength thick-walled conductor casing for deep wells | Sota Goto, Yukihiko Okazaki | 2021-06-22 |
| 10844993 | Electric-resistance-welded stainless clad steel pipe or tube | Shinsuke Ide, Atsushi Matsumoto, Yuji Hashimoto | 2020-11-24 |
| 10744589 | Method of monitoring manufacturing status of electric resistance welded pipe, device for monitoring manufacturing status of electric resistance welded pipe, and method of manufacturing electric resistance welded pipe | Toshifumi Kodama, Shuichi Sato | 2020-08-18 |
| 10724670 | Method of producing electric-resistance-welded stainless clad steel pipe or tube | Shinsuke Ide, Atsushi Matsumoto, Yuji Hashimoto | 2020-07-28 |
| 10584405 | Electric resistance welded steel pipe and manufacturing method therefor | Shunsuke Toyoda, Sota Goto, Yutaka Matsui, Satoru Yabumoto | 2020-03-10 |
| 10385417 | Heavy wall electric resistance welded steel pipe for line pipe and method for manufacturing the same | Sota Goto, Shunsuke Toyoda | 2019-08-20 |
| 9873164 | Electric resistance welded steel pipe or steel tube having excellent HIC resistance and low-temperature toughness in electric resistance welded part, and method for manufacturing the same | Shunsuke Toyoda, Sota Goto, Atsushi Yonemoto | 2018-01-23 |
| 9841124 | High-strength thick-walled electric resistance welded steel pipe having excellent low-temperature toughness and method of manufacturing the same | Shunsuke Toyoda, Sota Goto, Tomohiro Inoue, Motoharu Egi, Atsushi Yonemoto | 2017-12-12 |
| 9551047 | High-strength electric-resistance-welded steel pipe of excellent long-term softening resistance in intermediate temperature ranges | Shunsuke Toyoda, Sota Goto, Tomohiro Inoue | 2017-01-24 |
| 9000320 | Method of manufacturing electric resistance welding pipe having excellent characterization of welded seam | Kazuhito Kenmochi, Hiroyasu Yokoyama, Yuji Sugimoto, Muneyoshi Murakami, Osamu Shiotani +3 more | 2015-04-07 |
| 8912462 | Method of manufacturing electric resistance welding pipes having excellent characterization of welded seams | Kazuhito Kenmochi, Hiroyasu Yokoyama, Yuji Sugimoto, Yoshifumi Fujioka, Kei Sakata +5 more | 2014-12-16 |
| 8328957 | Electric resistance welded steel pipe with excellent weld toughness for line pipe | Hiroyasu Yokoyama, Kazuhito Kenmochi, Yukinori Iizuka | 2012-12-11 |
| 8296932 | Manufacturing equipment for electric resistance welding pipes having excellent characterization for welded seam | Kazuhito Kenmochi, Hiroyasu Yokoyama, Hiroyuki Shirosawa, Tetsuro Sawaki, Yuji Sugimoto +2 more | 2012-10-30 |
| 7619750 | Measurement method and device for bead cutting shape in electric resistance welded pipes | Toshifumi Kodama, Taira Suzuki, Akira Torao, Yasumasa Tekemura | 2009-11-17 |
| 7591914 | High-workability steel pipe and method of producing same | Takaaki Toyooka, Yoshikazu Kawabata, Akira Yorifuji, Masanori Nishimori, Motoaki Itadani +1 more | 2009-09-22 |
| 7471400 | Measurement method and device for bead cutting shape in electric resistance welded pipes | Toshifumi Kodama, Taira Suzuki, Akira Torao, Yasumasa Tekemura | 2008-12-30 |
| 7236255 | Method and instrument for measuring bead cutting shape of electric welded tube | Toshifumi Kodama, Taira Suzuki, Akira Torao, Yasumasa Tekemura | 2007-06-26 |
| 7018488 | Steel pipe for use in reinforcement of automobile and method for production thereof | Takaaki Toyooka, Masanori Nishimori, Yoshikazu Kawabata, Akira Yorifuji, Motoaki Itadani +1 more | 2006-03-28 |
| 6949728 | Impeder for manufacturing welded pipe | Takaaki Toyooka, Motoaki Itadani, Masatoshi Aratani, Osamu Kondo | 2005-09-27 |