Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5087300 | Method for manufacturing high-conductivity copper-clad steel trolley wire | Hiroki Nagasawa, Sumihisa Aoki, Haruo Tominaga, Kazuo Yokoyama | 1992-02-11 |
| 4844147 | Dip forming apparatus for continuously forming cast rod | Haruo Tominaga, Kenichi Miyauchi, Tetsuo Yamaguchi | 1989-07-04 |
| 4686153 | Electrode wire for use in electric discharge machining and process for preparing same | Haruo Tominaga, Yoshio Ogura, Tetsuo Yamaguchi | 1987-08-11 |