Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4581251 | Process for producing cobalt-modified ferromagnetic iron oxide | Hideaki Kosha, Tatsuji Kitamoto | 1986-04-08 |
| 4569856 | Method for preparing magnetic recording medium | Takahito Miyoshi, Kenichi Masuyama, Toshimitu Okutu, Norio Nasu, Nobuo Aoki +1 more | 1986-02-11 |
| 4486496 | Magnetic recording medium | Goro Akashi, Tatsuji Kitamoto | 1984-12-04 |
| 4442159 | Magnetic recording medium | Goro Akashi, Tatsuji Kitamoto | 1984-04-10 |