Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5397654 | Abrasion-resistant welded steel pipe | Shigeru Endo, Moriyasu Nagae, Kazuyoshi Ume | 1995-03-14 |
| 5301923 | Grease-sealed rolling contact bearing | Mitsunari Asao, Hidenobu Mikami | 1994-04-12 |
| 4341938 | Method and apparatus for seam-welding steel pipes | Hiroyoshi Matsubara, Kenji Takeshige, Tatsumi Osuka, Takashi Nagamine, Jinkichi Tanaka +2 more | 1982-07-27 |
| 4320277 | Thick welded steel pipe of large diameter and production thereof | Tadaaki Taira, Kiyoteru Hirabayashi, Hiroyuki Ichinose, Motoaki Suzuki | 1982-03-16 |
| 4238659 | Preventing magnetization of pipe blank in GMA welding | Fusao Koshiga, Jinkichi Tanaka, Itaru Watanabe, Motoaki Suzuki, Toshifumi Kojima +4 more | 1980-12-09 |