Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7601395 | Magnetic recording medium and method for manufacturing the same | Sadafumi Iijima | 2009-10-13 |
| 7563522 | Magnetic recording medium | Naoto Yajima, Akihiko Seki, Hiroyuki Yamada, Kenichi Kitamura | 2009-07-21 |
| 7432000 | Magnetic recording medium utilizing a back coat layer containing a carboxylic acid amine salt and a phosphate amine salt | Katsuhiko Yamazaki | 2008-10-07 |
| 7208237 | Magnetic recording medium | Akihiko Seki, Naoto Yajima, Hiroyuki Yamada, Kenichi Kitamura | 2007-04-24 |
| 7157163 | Magnetic recording medium | Naoto Yajima, Akihiko Seki, Hiroyuki Yamada, Kenichi Kitamura | 2007-01-02 |
| 7090936 | Magnetic recording medium | Kenichi Kitamura, Sadafumi Iijima | 2006-08-15 |
| 7011900 | Magnetic recording medium | Akihiko Seki, Naoto Yajima | 2006-03-14 |
| 6852404 | Magnetic recording medium | Osamu Inoue, Akimasa Kaizu | 2005-02-08 |
| 6777061 | Magnetic recording medium and process for producing the same | Kenichi Kitamura, Sadafumi Iijima | 2004-08-17 |
| 6127039 | Magnetic recording medium and a process for producing the same | Akira Saitoh, Akihiko Seki, Satoru Tsuchida | 2000-10-03 |
| 5792548 | Magnetic recording medium having a magnetic layer and an intermediate layer of specified composition | Tsunehiko Ikarashi, Yuko Motegi | 1998-08-11 |
| 5698286 | Magnetic recording medium | Tsunehiko Ikarashi, Yasufumi Takasugi, Tsutomu Aoyama, Akira Saitoh, Yuko Motegi | 1997-12-16 |
| 5688591 | Magnetic recording medium containing an unsaturated fatty acid diester of a dihydric alcohol | Hideki Sasaki | 1997-11-18 |