Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6478860 | Conditioning metal surfaces before phosphating them | Yasuhiko Nagashima, Kensuke Shimoda, Hirokastu Bannai | 2002-11-12 |
| 6361623 | Method for phosphatizing iron and steel | Kazuhiro Ishikura, Manabu Kumagaya | 2002-03-26 |