Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7601395 | Magnetic recording medium and method for manufacturing the same | Takayoshi Kuwajima | 2009-10-13 |
| 7090936 | Magnetic recording medium | Kenichi Kitamura, Takayoshi Kuwajima | 2006-08-15 |
| 6777061 | Magnetic recording medium and process for producing the same | Kenichi Kitamura, Takayoshi Kuwajima | 2004-08-17 |
| 5510179 | Magnetic recording medium having at least two layers wherein the uppermost layer contains alumina particles which contain specified oxides | Kiyoto Fukushima, Motoyuki Tsunoda | 1996-04-23 |