Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5703150 | Phosphonite or phosphonate compounds and use thereof | Tetsuji Ike, Takeshi Inoue | 1997-12-30 |
| 5667598 | Production method for grain oriented silicion steel sheet having excellent magnetic characteristics | Akio Fujita, Mineo Muraki | 1997-09-16 |