Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4684556 | Tubular lining material for pipe line | Akio Morinaga, Yoichi Sakaguchi, Masakatsu Hyodo, Isaburo Yagi | 1987-08-04 |
| 4427480 | Method and apparatus for providing the inner surface of a pipe line with a tubular lining material | Takashi Kamuro, Hiroshi Kimura, Takeshi Nakamura | 1984-01-24 |
| 4346922 | Device for preventing leakage at pipe joints | Koji Uzawa, Takashi Kamuro, Susumu Sudo, Tomoyoshi Hirose, Masafumi Miyao +1 more | 1982-08-31 |