Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7212743 | Optical switch device, and optical reception device and optical switch network in which the optical switch device is applied | Kazuhiko Hayashi, Akinobu Sato | 2007-05-01 |
| 7090934 | Perpendicular magnetic recording medium | Shinzo Tsuboi, Katsumichi Tagami | 2006-08-15 |
| 6638647 | Vertical recording medium with thin soft magnetic film | — | 2003-10-28 |
| 6462916 | Magnetic disc apparatus | — | 2002-10-08 |
| 6426157 | Perpendicular magnetic recording medium | Shinzo Tsuboi, Katsumichi Tagami | 2002-07-30 |
| 6387483 | Perpendicular magnetic recording medium and manufacturing process therefor | Shinzo Tsuboi | 2002-05-14 |
| 6270885 | Perpendicular magnetic recording medium | Shinzo Tsuboi, Katsumichi Tagami | 2001-08-07 |
| 6204995 | Magnetic disc apparatus | Shinzo Tsuboi, Katsumichi Tagami | 2001-03-20 |