Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6946191 | Magnetic recording medium | Takashi Morikawa, Teiichiro Umezawa, Masafumi Ishiyama | 2005-09-20 |
| 6916558 | Magnetic disk using a glass substrate | Teiichiro Umezawa, Keiji Moroishi | 2005-07-12 |
| 6852010 | Substrate for an information recording medium, information recording medium using the substrate, and method of producing the substrate | Kouji Takahashi, Takemi Miyamoto, Genshichi Hata, Tomotaka Yokoyama | 2005-02-08 |