Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4354881 | Method for antirust treatment of steel stocks | Keiichi Tanikawa, Tatsurou Obi, Susumu Otsuka, Isao Manabe, Chiaki Maeda | 1982-10-19 |
| 4338209 | Metal corrosion inhibitor | Isao Manabe | 1982-07-06 |