Issued Patents All Time
Showing 51–75 of 107 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4666770 | Magnetic recording medium | Takamitsu Asai | 1987-05-19 |
| 4657813 | Magnetic recording medium | Takamitsu Asai | 1987-04-14 |
| 4657814 | Magnetic recording medium | Takamitsu Asai | 1987-04-14 |
| 4656088 | Magnetic recording medium | Fumihiro Tokunaga, Takamitsu Asai | 1987-04-07 |
| 4652958 | Tape for cleaning magnetic head | Takahito Miyoshi, Akira Kasuga | 1987-03-24 |
| 4650720 | Magnetic recording medium | Nobutaka Yamaguchi, Takahito Miyoshi, Toshimitu Okutu, Noburo Hibino, Eiichi Tadokoro | 1987-03-17 |
| 4647503 | Magnetic recording medium including magnetic layer with carbon black particles and a fatty acid ester | Nobutaka Yamaguchi, Kazuo Kato, Akira Kashiwagi | 1987-03-03 |
| 4643941 | Magnetic recording medium | Takahito Miyoshi | 1987-02-17 |
| 4632868 | Magnetic recording media | Takahito Miyoshi, Akihiro Matsufuji | 1986-12-30 |
| 4629653 | Magnetic recording medium having laminated hexagonal ferrite platelets | Takamitsu Asai, Minoru Kanazawa, Nobuo Aoki | 1986-12-16 |
| 4626469 | Magnetic recording material | Nobutaka Yamaguchi, Kenichi Masuyama, Shinobu Iida | 1986-12-02 |
| 4617226 | Magnetic recording medium | Nobutaka Yamaguchi, Masahiro Utumi, Takahito Miyoshi | 1986-10-14 |
| 4612235 | Magnetic recording medium | Akira Ushimaru, Toshimitu Okutu, Takahito Miyoshi | 1986-09-16 |
| 4601946 | Magnetic recording medium | Shinobu Iida, Nobutaka Yamaguchi, Fumiaki Tsukuda, Eiichi Tadokoro | 1986-07-22 |
| 4600638 | Magnetic recording medium | Tadashi Ishikuro, Ryuji Shirahata, Takahito Miyoshi | 1986-07-15 |
| 4598014 | Magnetic recording medium | Takahito Miyoshi, Kenichi Masuyama, Toshimitu Okutu, Masahiro Utumi, Minoru Kanazawa | 1986-07-01 |
| 4592952 | Magnetic recording medium | Takahito Miyoshi, Toshimitu Okutu | 1986-06-03 |
| 4582754 | Magnetic recording medium | Katsumi Ryoke, Shinobu Iida, Eiichi Tadokoro | 1986-04-15 |
| 4582757 | Magnetic recording medium | Takahito Miyoshi, Kenichi Masuyama, Masahiro Utumi, Toshimitu Okutu | 1986-04-15 |
| 4579778 | Magnetic recording medium | Nobutaka Yamaguchi, Norio Nasu, Eiichi Tadokoro | 1986-04-01 |
| 4578311 | Magnetic recording medium | Tadashi Ishikuro, Ryuji Shirahata, Takahito Miyoshi | 1986-03-25 |
| 4569856 | Method for preparing magnetic recording medium | Takahito Miyoshi, Kenichi Masuyama, Shin-ichiro Dezawa, Toshimitu Okutu, Norio Nasu +1 more | 1986-02-11 |
| 4567057 | Method of making magnetic recording medium | Kenichi Masuyama, Toshimitu Okutu, Takahito Miyoshi, Hiroshi Ogawa, Masahiro Utumi +1 more | 1986-01-28 |
| 4567063 | Process for producing magnetic recording media | Takahito Miyoshi, Toshimitu Okutu, Masahiro Utumi | 1986-01-28 |
| 4552799 | Magnetic recording medium | Katsumi Ryoke, Shinobu Iida, Eiichi Tadokoro | 1985-11-12 |