Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5399208 | Method for phosphating metal surface with zinc phosphate | Tamotsu Sobata, Shoji Shiraishi, Seiichiro Shirahata | 1995-03-21 |
| 5380784 | Water-based resin dispersion and resin composition for coating | Kazuhiko Usuki, Kazuhiko Nishimoto, Koichi Saito, Manabu Yoshioka | 1995-01-10 |
| 5232523 | Phosphate coatings for metal surfaces | Koetsu Endo, Tamotsu Sobata | 1993-08-03 |
| 5221370 | Method for forming zinc phosphate film on metal surface | Masahiro Jo, Yasutake Mino, Takamasa Shimizu, Koetsu Endo, Tamotsu Sobata | 1993-06-22 |
| 5211769 | Method for phosphating metal surface with zinc phosphate | Tamotsu Sobata, Shoji Shiraishi, Seiichiro Shirahata | 1993-05-18 |
| 5039363 | Process for phosphating metal surfaces | Masahiro Jo, Yasutake Mino, Takamasa Shimizu, Koetsu Endo, Tamotsu Sobata | 1991-08-13 |
| 5039563 | Surface treating agent before coating | Koetsu Endo | 1991-08-13 |
| 4501649 | Method of controlling electrocoating bath and apparatus therefor | Nobuo Furuno, Yoshio Ota, Masahiro Itai, Eiichi Nakano | 1985-02-26 |