Issued Patents All Time
Showing 76–100 of 107 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4552808 | Magnetic recording material using plate-shaped ferromagnetic particles | Takamitsu Asai, Toshihiko Miura | 1985-11-12 |
| 4552807 | Magnetic recording medium | Yasuyuki Yamada, Takahito Miyoshi, Toshimitsu Okutsu | 1985-11-12 |
| 4546038 | Magnetic recording medium | Nobutaka Yamaguchi, Katsumi Ryoke, Eiichi Tadokoro | 1985-10-08 |
| 4544601 | Magnetic recording medium | Nobutaka Yamaguchi, Shinobu Iida, Toshimitu Okutu, Takahito Miyoshi, Eiichi Tadokoro | 1985-10-01 |
| 4532172 | Leader or trailer tape | — | 1985-07-30 |
| 4528240 | Magnetic recording medium | Takahito Miyoshi, Toshimitu Okutu | 1985-07-09 |
| 4504542 | Magnetic recording medium having a subbing layer of amorphous saturated polyesters | Takahito Miyoshi, Toshimitu Okutu | 1985-03-12 |
| 4499121 | Method of preparing a magnetic recording medium with a calendering treatment | Nobutaka Yamaguchi, Sugihiko Tada, Eiichi Tadokoro, Katsumi Ryoke, Masahiro Utsumi +1 more | 1985-02-12 |
| 4487802 | Magnetic recording medium | Takahito Miyoshi, Toshimitu Okutu, Sumitaka Tatsuta, Nobuo Tsuji | 1984-12-11 |
| 4474843 | Magnetic recording medium | Takahito Miyoshi, Toshimitu Okutu | 1984-10-02 |
| 4474848 | Magnetic recording medium | Nobutaka Yamaguchi | 1984-10-02 |
| 4450199 | Magnetic recording medium | Eiichi Tadokoro, Goro Akashi | 1984-05-22 |
| 4448842 | Magnetic recording medium | Nobutaka Yamaguchi, Nobuo Tsuji | 1984-05-15 |
| 4444842 | Magnetic recording medium | Nobutaka Yamaguchi, Nobuo Tsuji, Yasutoshi Okuzawa, Norio Nasu | 1984-04-24 |
| 4439486 | Magnetic recording medium | Yasuyuki Yamada, Nobuo Tsuji | 1984-03-27 |
| 4427738 | Magnetic recording medium | Nobutaka Yamaguchi | 1984-01-24 |
| 4420532 | Magnetic recording medium | Nobutaka Yamaguchi, Norio Nasu | 1983-12-13 |
| 4414270 | Magnetic recording medium | Takahito Miyoshi, Toshimitu Okutu, Goro Akashi, Tatsuji Kitamoto | 1983-11-08 |
| 4411966 | Magnetic recording medium | Nobutaka Yamaguchi, Nobuo Tsuji, Yasutoshi Okuzawa, Norio Nasu | 1983-10-25 |
| 4411953 | Magnetic recording medium | Takahito Miyoshi, Nobuo Tsuji, Toshimitu Okutu | 1983-10-25 |
| 4397911 | Cleaning tape | Goro Akashi | 1983-08-09 |
| 4391851 | Process for producing a magnetic recording medium | Yasuyuki Yamada, Goro Akashi, Nobuo Tsuji, Yoshito Mukaida | 1983-07-05 |
| 4388360 | Magnetic recording medium | Takahito Miyoshi, Toshimitu Okutu, Masaaki Takimoto, Takashi Saida, Goro Akashi | 1983-06-14 |
| 4367261 | Magnetic recording medium | Takahito Miyoshi, Toshimitu Okutu, Yasuyuki Yamada | 1983-01-04 |
| 4356232 | Method for producing magnetic recording medium | Eiichi Tadokoro, Haruo Masuda, Nobutaka Yamaguchi | 1982-10-26 |