Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8043531 | Surface conditioner and surface conditioning method | Toshiko Nakazawa | 2011-10-25 |
| 6391206 | Method for recovery of aqueous wash in phosphate chemical conversion and apparatus for metal surface treatment | Hiroshi Chihara, Syoji Shiraishi, Naoki Tada, Toshiyuki Kawashima, Hideaki Morita +1 more | 2002-05-21 |
| 5908512 | Highly durable surface-conditioning agent | Mitsuo Shinomiya, Tamotsu Sobata | 1999-06-01 |
| 5780122 | Pretreatment method for coating on molded metal article | Mitsuo Shinomiya, Satoshi Miyamoto, Tamotsu Sobata | 1998-07-14 |
| 5399208 | Method for phosphating metal surface with zinc phosphate | Tamotsu Sobata, Akio Tokuyama, Shoji Shiraishi | 1995-03-21 |
| 5211769 | Method for phosphating metal surface with zinc phosphate | Tamotsu Sobata, Akio Tokuyama, Shoji Shiraishi | 1993-05-18 |