Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7081308 | Magnetic recording medium | Hisao Kawai, Hirotaka Tanaka, Masaki Uemura | 2006-07-25 |
| 6946191 | Magnetic recording medium | Takashi Morikawa, Hiroshi Tomiyasu, Masafumi Ishiyama | 2005-09-20 |
| 6916558 | Magnetic disk using a glass substrate | Hiroshi Tomiyasu, Keiji Moroishi | 2005-07-12 |
| 6759138 | Antiferromagnetically coupled magnetic recording medium with dual-layered upper magnetic layer | Hiroshi Tomiyasu, Keiji Moroishi, Kenji Ayama | 2004-07-06 |
| 6670055 | Magnetic recording medium and manufacturing method therefor | Hiroshi Tomiyasu, Junichi Horikawa, Kenji Ayama, Tomotaka Yokoyama | 2003-12-30 |