Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6652612 | Silica particles for polishing and a polishing agent | Akira Nakashima, Michio Komatsu | 2003-11-25 |
| 6593839 | Leakage flux-type power conversion transformer | Shigeo Abe | 2003-07-15 |