Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7948347 | Multi-stage coil for transformer, and coil winding method and apparatus for manufacturing the same | Eisuke Maruyama, Toshio Ogata | 2011-05-24 |
| 7793880 | Multi-stage coil for transformer, and coil winding method and apparatus for manufacturing the same | Eisuke Maruyama, Toshio Ogata | 2010-09-14 |