Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7563522 | Magnetic recording medium | Takayoshi Kuwajima, Akihiko Seki, Hiroyuki Yamada, Kenichi Kitamura | 2009-07-21 |
| 7208237 | Magnetic recording medium | Akihiko Seki, Takayoshi Kuwajima, Hiroyuki Yamada, Kenichi Kitamura | 2007-04-24 |
| 7157163 | Magnetic recording medium | Takayoshi Kuwajima, Akihiko Seki, Hiroyuki Yamada, Kenichi Kitamura | 2007-01-02 |
| 7011900 | Magnetic recording medium | Akihiko Seki, Takayoshi Kuwajima | 2006-03-14 |