Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5567523 | Magnetic recording medium comprising a carbon substrate, a silicon or aluminum nitride sub layer, and a barium hexaferrite magnetic layer | Jinshan Li, Hidetaka Hayashi | 1996-10-22 |
| 5322595 | Manufacture of carbon substrate for magnetic disk | Motoharu Sato | 1994-06-21 |
| 5089746 | Production of ion beams by chemically enhanced sputtering of solids | Kenneth J. Doniger | 1992-02-18 |