Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4854783 | Vertical hydro-hoist with adjustable floats and method of operating the same | Kenji Uchida, Nobuyuki Banba, Minoru Kuroiwa, Yukishige Kamino | 1989-08-08 |
| 4842818 | Method for manufacturing tapered rods | Tetsuo Kato, Shozo Abeyama | 1989-06-27 |
| 4806304 | Free cutting steel | Atsuyoshi Kimura, Sadayuki Nakamura | 1989-02-21 |