Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5047290 | Magnetic recording medium | Shin'ichi Kitahata | 1991-09-10 |
| 4919776 | Ferromagnetic powder and method for producing the same | Tomoji Kawai, Shichio Kawai | 1990-04-24 |
| 4913959 | Magnetic recording medium | Akira Miyake | 1990-04-03 |
| 4851276 | Magnetic recording medium and method for producing the same | Shinichi Kitahata | 1989-07-25 |
| 4803132 | Magnetic recording medium | Tetsuya Nakazumi, Tomoji Kawai, Shichio Kawai | 1989-02-07 |
| 4792483 | Magnetic recording medium | Akira Miyake | 1988-12-20 |
| 4770933 | Magnetic recording medium | Shinichi Kitahata | 1988-09-13 |
| 4705718 | Magnetic recording medium | Shinichi Kitahata | 1987-11-10 |
| 4677024 | Magnetic recording medium | Shinichi Kitahata | 1987-06-30 |
| 4624894 | Magnetic recording medium | — | 1986-11-25 |
| 4400337 | Method for production of metal magnetic particles | Yukihiro Hayashi, Toshinobu Sueyoshi, Shigeo Hirai, Katsunori Tashita, Masahiro Amemiya | 1983-08-23 |