Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5719729 | Magnetic head and recording and reproducing apparatus having an arrangement for improving coincidence between a magnetic center of a read head and physical center of a write head | Naoki Koyama, Yoshihiro Hamakawa, Kanji Kawakami, Kazuo Shiiki, Masahiro Kitada | 1998-02-17 |
| 4814921 | Multilayered magnetic films and thin-film magnetic heads using the same as a pole | Yoshihiro Hamakawa, Kazuo Shiiki, Yoshihiro Shiroishi, Hitoshi Numasaka, Noriyuki Kumasaka +2 more | 1989-03-21 |