Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4659439 | Surface treatment of aluminum or aluminum alloys | Hiroshi Watanabe, Isao Shimamura, Masao Abe | 1987-04-21 |
| 4526671 | Surface treatment of aluminum or aluminum alloys | Hiroshi Watanabe, Isao Shimamura, Masao Abe | 1985-07-02 |
| RE31901 | Continuous electrolytical treatment of aluminum or its alloys | Satoshi Kawai, Yoichi Yamagiwa, Hiroshi Watanabe, Yoshio Ando, Masaaki Takahashi | 1985-05-28 |