Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889706 | Method of manufacturing fine powder of lead stannate | Satoru Uedaira, Masayuki Suzuki, Hidemasa Tamura | 1989-12-26 |
| 4810484 | Method for manufacturing fine lead titanate powders | Satoru Uedaira, Masayuki Suzuki, Hidemasa Tamura | 1989-03-07 |
| 4796241 | Device for producing a high frequency modulation magnetic field used in magneto-optical recording | Masatoshi Hayakawa, Takehiro Nagaki, Koichi Aso | 1989-01-03 |