Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4588654 | Magnetic recording medium | Takayoshi Kobuke, Toshiaki Izumi, Kazumasa Fukuda | 1986-05-13 |
| 4563396 | Magnetic recording medium | Kazumasa Fukuda | 1986-01-07 |
| 4542062 | Magnetic recording medium | Kazuo Takada | 1985-09-17 |
| 4520076 | Magnetic recording medium | Toshiaki Izumi, Takayoshi Kobuke, Hiroshi Sugihara | 1985-05-28 |
| 4486498 | Magnetic recording medium | — | 1984-12-04 |
| 4416943 | Magnetic recording medium | — | 1983-11-22 |
| 4396668 | Magnetic recording medium | Hideo Kobayashi | 1983-08-02 |
| 4387136 | Magnetic recording medium and apparatus for preparing the same | Fumio Maruta, Toshiaki Izumi, Hiroshi Sugihara | 1983-06-07 |
| 4371590 | Magnetic recording medium with stepwise orientation of deposited metallic particles | Toshiaki Izumi, Fumio Maruta, Minoru Kameya | 1983-02-01 |
| 4343834 | Process for preparing magnetic recording medium | Toshiaki Izumi, Hiroshi Sugihara, Takayoshi Kobuke, Kazuo Takada | 1982-08-10 |