Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6671194 | Switching power supply unit | — | 2003-12-30 |
| 6645051 | Polishing composition and polishing method for polishing a substrate to be used for a memory hard disk employing it | Hiroyasu Sugiyama, Tomoaki Ishibashi | 2003-11-11 |