Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4232061 | Magnetic recording medium and process for producing the same | Koichi Makino, Takehiko Nakagawa, Masayoshi Shinohara | 1980-11-04 |
| 4232071 | Method of producing magnetic thin film | Akira TERADA, Yoshikazu Ishii, Akira Nohara, Nobuo Inagaki, Wakatake Matsuda +1 more | 1980-11-04 |
| 4215158 | Magnetic recording medium and process for producing the same | Takehiko Nakagawa, Kazuo Kobayashi, Koichi Makino, Wakatake Matsuda | 1980-07-29 |