Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889706 | Method of manufacturing fine powder of lead stannate | Masayuki Suzuki, Hiroshi Yamanoi, Hidemasa Tamura | 1989-12-26 |
| 4810484 | Method for manufacturing fine lead titanate powders | Masayuki Suzuki, Hiroshi Yamanoi, Hidemasa Tamura | 1989-03-07 |