Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6906884 | Magnetic disk apparatus and its servo signal recording method | Takashi Yamaguchi, Kenichiro Sugiyama | 2005-06-14 |
| 6888696 | Magnetic disk apparatus and servo signal recording method | Takashi Yamaguchi, Marutomo Goto, Hidehiko Numasato | 2005-05-03 |
| 6636385 | Magnetic disc apparatus having actuator for head positioning mechanism | Takashi Yamaguchi, Tetsuya Hamaguchi, Keiko Watanabe | 2003-10-21 |
| 6597532 | Information recording disk apparatus | Kazuaki Usui, Keiko Watanabe, Tetsuya Hamaguchi, Tsuyoshi Arai | 2003-07-22 |