Issued Patents All Time
Showing 51–57 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4504542 | Magnetic recording medium having a subbing layer of amorphous saturated polyesters | Toshimitu Okutu, Masaaki Fujiyama | 1985-03-12 |
| 4487802 | Magnetic recording medium | Toshimitu Okutu, Masaaki Fujiyama, Sumitaka Tatsuta, Nobuo Tsuji | 1984-12-11 |
| 4474843 | Magnetic recording medium | Toshimitu Okutu, Masaaki Fujiyama | 1984-10-02 |
| 4414270 | Magnetic recording medium | Toshimitu Okutu, Goro Akashi, Tatsuji Kitamoto, Masaaki Fujiyama | 1983-11-08 |
| 4411953 | Magnetic recording medium | Nobuo Tsuji, Toshimitu Okutu, Masaaki Fujiyama | 1983-10-25 |
| 4388360 | Magnetic recording medium | Toshimitu Okutu, Masaaki Takimoto, Takashi Saida, Goro Akashi, Masaaki Fujiyama | 1983-06-14 |
| 4367261 | Magnetic recording medium | Toshimitu Okutu, Masaaki Fujiyama, Yasuyuki Yamada | 1983-01-04 |