Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5154984 | Metal-ceramic composite | Manabu Seguchi, Kazuo Okamura, Fuminori Hikami, Koichiro Ishihara, Katsutoshi Hara | 1992-10-13 |
| 4947924 | Metal-ceramic composite and method of producing the same | Manabu Seguchi, Kazuo Okamura, Fuminori Hikami, Koichiro Ishihara, Katsutoshi Hara | 1990-08-14 |
| 4871194 | Oil well pipe joint and manufacturing method therefor | Hisakazu Kawashima, Minoru Nishihara, Tetsuzo Arai, Kunihiro Fukui | 1989-10-03 |
| 4630849 | Oil well pipe joint | Kunihiro Fukui, Minoru Nishihara, Toshiro Mase, Hisakazu Kawashima | 1986-12-23 |
| 4474651 | Oil well casing and tubing joint and production of same | Akihiro Yauchi, Minoru Nishihara, Kunihiro Fukui, Hisakazu Kawashima | 1984-10-02 |