Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4622273 | Recording medium for perpendicular magnetization | Keishi Nakashima, Takashi Hatanai | 1986-11-11 |
| 4609593 | Magnetic recording medium | Keishi Nakashima, Takashi Hatanai, Yutaka Shimada | 1986-09-02 |
| 4608228 | Ni-Fe magnetic head including 1.5-2% Ta | Akihiro Makino | 1986-08-26 |
| 4603091 | Recording medium for perpendicular magnetization | Takashi Hatanai, Keishi Nakashima | 1986-07-29 |
| 4592963 | Thin-film magnetic head and composite material substrate therefor | Takashi Hatanai, Keishi Nakashima, Kazumasa Onishi | 1986-06-03 |
| 4557769 | Soft magnetic material | Yutaka Shimada, Takashi Hatanai, Keishi Nakashima | 1985-12-10 |