Issued Patents All Time
Showing 25 most recent of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10449636 | Pipeline and manufacturing method thereof | Yukinobu Nagata, Yasuhiro Shinohara | 2019-10-22 |
| 9737962 | Pipeline and manufacturing method thereof | Yukinobu Nagata, Yasuhiro Shinohara | 2017-08-22 |
| 9188253 | Oil country tubular goods with dual phase structure and producing method thereof | Mitsuru Sawamura, Hitoshi Asahi, Jun Agata | 2015-11-17 |
| 8955887 | Liquid phase diffusion bonded pipe joint | Yasushi Hasegawa, Yasuhiro Shinohara, Yuichi Sato | 2015-02-17 |
| 8815024 | Steel plate or steel pipe with small occurrence of Bauschinger effect and methods of production of same | Hitoshi Asahi | 2014-08-26 |
| 8653400 | High strength welded steel tube superior in hydrogen embrittlement cracking resistance of weld metal and method of production of same | Takuya Hara, Hitoshi Asahi, Hiroshi Morimoto, Yoshio Terada, Tatsuya Yoshida +1 more | 2014-02-18 |
| 8399418 | Monosebacate of pyrazole derivative | Hideki Takeuchi | 2013-03-19 |
| 8354382 | Hemifumarate of a pyrazole derivative | Hideki Takeuchi | 2013-01-15 |
| 7967926 | UOE steel pipe excellent in collapse strength and method of production thereof | Hitoshi Asahi | 2011-06-28 |
| 7892368 | UOE steel pipe excellent in collapse strength and method of production thereof | Hitoshi Asahi | 2011-02-22 |
| 7524001 | Rubber crawler | Shinji Uchida | 2009-04-28 |
| 7459033 | Oil country tubular goods excellent in collapse characteristics after expansion and method of production thereof | Hitoshi Asahi | 2008-12-02 |
| 7438778 | Elastic endless crawler and method of manufacturing the same | — | 2008-10-21 |
| 7077485 | Rubber crawler | Hitoshi Akiyama | 2006-07-18 |
| 7036893 | Rubber crawler and its manufacture method | — | 2006-05-02 |
| 6843539 | Elastic endless crawler and method of producing the same | — | 2005-01-18 |
| 6782921 | High-strength steel pipe excellent in formability and burst resistance | Takuya Hara, Hitoshi Asahi, Hideki Miyazaki, Tatsuya Yoshida | 2004-08-31 |
| 6742852 | Rubber crawler | Koji Nakayama | 2004-06-01 |
| 6705648 | Pipe joint | Kazushi Maruyama, Haruyuki Nagayoshi | 2004-03-16 |
| 6376707 | Crystal polymorphism of aminoethylphenoxyacetic acid derivative | Michio Toda, Tetsuro Tamai, Nobuyuki Tanaka, Kiyoshi Kasai, Junichi Sonehara | 2002-04-23 |
| D455444 | Rubber crawler | — | 2002-04-09 |
| D454890 | Rubber crawler | — | 2002-03-26 |
| 6264761 | Alloy foil for liquid-phase diffusion bonding bondable in oxidizing atmosphere | Yasushi Hasegawa, Yuichi Sato, Shigekatsu Ozaki | 2001-07-24 |
| 6176524 | Oil well pipe threaded joint | Masaharu Oka, Kazushi Maruyama | 2001-01-23 |
| 6079802 | Rubber crawler | Naoki Nishimura | 2000-06-27 |