Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6083896 | Aqueous cleaning solution and method for cleaning aluminum-based metals | Toshio Inbe, Shinji Sasakuma, Satoshi Ikeda | 2000-07-04 |
| 5328526 | Method for zinc-phosphating metal surface | Masahiro Jo, Tamotsu Sobata | 1994-07-12 |
| 5270414 | Copolymer coating | Koichi Saito, Eizi Shimoda | 1993-12-14 |
| 5221370 | Method for forming zinc phosphate film on metal surface | Masahiro Jo, Takamasa Shimizu, Koetsu Endo, Akio Tokuyama, Tamotsu Sobata | 1993-06-22 |
| 5039363 | Process for phosphating metal surfaces | Masahiro Jo, Takamasa Shimizu, Koetsu Endo, Akio Tokuyama, Tamotsu Sobata | 1991-08-13 |
| 4673444 | Process for phosphating metal surfaces | Koichi Saito, Ryoichi Murakami | 1987-06-16 |
| 4443273 | Method for replenishing chemical in zinc phosphate treatment | Koichi Saito, Nobuo Nakatani, Ryoichi Murakami | 1984-04-17 |