Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5479311 | Magnetic tape cassette having improved magnetic tape substrate and tape guide for reducing electrostatic charging | Hiroaki Doushita, Tadashi Ishiguro, Takeshi Kakuta, Kazuo Kato | 1995-12-26 |
| 4995199 | Magnetic tape cassette having improved guide pole structure | Takahito Miyoshi, Minoru Kanazawa, Tsutomu Sugisaki, Takuzi Yamada | 1991-02-26 |
| 4993197 | Magnetic tape cassette having improved guide pole structure | Takahito Miyoshi, Minoru Kanazawa, Tsutomu Sugisaki, Takuzi Yamada | 1991-02-19 |
| 4930032 | Magnetic tape cassette having improved guide pole structure | Takahito Miyoshi, Minoru Kanazawa, Tsutomu Sugisaki, Takuzi Yamada | 1990-05-29 |
| 4707392 | Flexible magnetic disk | Mikihiko Kato, Shigeo Komine, Kazuhiko Morita | 1987-11-17 |
| 4696846 | Method for forming protective layer on a flexible magnetic disc sheet | Mikihiko Kato, Shigeo Komine, Kazuhiko Morita | 1987-09-29 |
| 4696859 | Magnetic recording medium | Takahito Miyoshi, Nobuo Aoki, Takashi Yoneyama, Akira Kasuga, Toshimitu Okutu +1 more | 1987-09-29 |
| 4675768 | Flexible magnetic disk having an embossed circular hole | — | 1987-06-23 |
| 4652480 | Flexible disk | Mikihiko Kato, Shigeo Komine, Kazuhiko Morita | 1987-03-24 |
| 4647473 | Method for forming protective layer on a flexible magnetic disc sheet | Mikihiko Kato, Shigeo Komine, Kazuhiko Morita | 1987-03-03 |
| 4630151 | Flexible magnetic disk driving apparatus with lubricated surfaces | — | 1986-12-16 |
| 4581270 | Flexible magnetic disk | Mikihiko Kato, Tsutomu Okita, Shigeo Komine, Kazuhiko Morita | 1986-04-08 |
| 4578299 | Flexible magnetic disk sheet | Mikihiko Kato, Tsutomu Okita, Shigeo Komine, Kazuhiko Morita | 1986-03-25 |
| 4523246 | Flexible magnetic disk | — | 1985-06-11 |
| 4444842 | Magnetic recording medium | Nobutaka Yamaguchi, Nobuo Tsuji, Norio Nasu, Masaaki Fujiyama | 1984-04-24 |
| 4442171 | Magnetic recording medium | Masami Sato, Goro Akashi, Toshimitu Okutu | 1984-04-10 |
| 4411958 | Magnetic recording medium | Masami Sato, Noburo Hibino | 1983-10-25 |
| 4411966 | Magnetic recording medium | Nobutaka Yamaguchi, Nobuo Tsuji, Norio Nasu, Masaaki Fujiyama | 1983-10-25 |