Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7995309 | Magnetic recording medium, magnetic signal reproduction method and magnetic signal reproduction system | Ryota Suzuki, Masayuki Usui | 2011-08-09 |
| 6916521 | Cleaning medium for magnetic recording apparatus | Tadashi Ishiguro, Satoru Hayakawa, Minoru Sueki | 2005-07-12 |
| 6881474 | Magnetic tape possessing a controlled radius of curvature in the width and longitudinal directions | Masatoshi Takahashi, Minoru Sueki | 2005-04-19 |
| 6228461 | Magnetic recording tape | Minoru Sueki, Masatoshi Takahashi | 2001-05-08 |
| 5904979 | Magnetic recording system | Kenichi Masuyama, Kiyomi Ejiri | 1999-05-18 |
| 5888637 | Magnetic recording medium tape favorably employable for computer data storage | Satoru Hayakawa, Toru Nakao | 1999-03-30 |
| 5407725 | Magnetic recording medium having a magnetic layer containing two carbon blacks each within specific particle size and DBP adsorption ranges | Katsumi Ryoke, Toshiyuki Kitahara, Tetsuji Nishida | 1995-04-18 |
| 5326618 | Magnetic recording medium and process for production thereof | Katsumi Ryoke, Toshiyuki Kitahara, Akihiro Matsufuji | 1994-07-05 |
| 5212019 | Magnetic recording medium having a magnetic layer containing ferromagnetic metal powder, binder, fatty acid ester, and a specified branched chain fatty acid | Katsumi Ryoke, Masaki Suzuki | 1993-05-18 |
| 5196265 | Magnetic recording medium | Katsumi Ryoke, Toshiyuki Kitahara | 1993-03-23 |
| 4980199 | Process for producing a magnetic recording medium | Tsutomu Okita | 1990-12-25 |
| 4968557 | Magnetic recording medium | Kiyomi Ejiri, Hiroaki Araki | 1990-11-06 |
| 4847156 | Magnetic recording medium | Yasuo Nishikawa, Akihiro Matsufuji, Kenichi Masuyama | 1989-07-11 |
| 4844991 | Magnetic recording medium and process for the preparation of the same | Toshihiko Miura, Masaaki Fujiyama | 1989-07-04 |
| 4786557 | Magnetic recording medium of continuous form | Takahito Miyoshi, Masatoshi Takahashi | 1988-11-22 |
| 4780365 | Magnetic recording medium | Kenichi Masuyama, Masaaki Fujiyama, Toshimitu Okutu | 1988-10-25 |
| 4761243 | Process for the preparation of magnetic paint | Kenichi Masuyama, Masaaki Fujiyama, Toshimitu Okutu | 1988-08-02 |