Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880515 | Surface treatment method | Masato Yoshikawa, Yukihiro Kusano, Toshio Honda, Tomonobu Hata | 1989-11-14 |
| 4872932 | Method for making rubbery composite materials by plating a metal substrate with a cobalt alloy | Masato Yoshikawa, Yukio Fukuura, Setsuo Akiyama, Makoto Nakamura, Toshio Honda | 1989-10-10 |