Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861681 | Brazed aluminum article | Masami Asano, Ken Toma | 1989-08-29 |
| 4842185 | Method of brazing a heat exchanger using a reaction flux | Hajime Kudo, Masami Asano, Ken Toma | 1989-06-27 |
| 4828936 | Aluminum alloy sheet excellent in high-temperature sagging resistance and sacrificial anode property and having high room-temperature strength | Ken Toma, Masami Asano, Noriaki Takahashi, Shoji Takeuchi | 1989-05-09 |
| 4826737 | Method of using aluminum alloy as substrate for magnetic discs with enhanced magnetic recording density | Kazuo Yamada, Masahiro Tsuchiya, Hideaki Kakita, Reijiro Maruyama, Yoshinobu Okada | 1989-05-02 |