Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7420886 | Magnetic recording medium, and thermal stability measuring method and apparatus of magnetic recording medium | Hiroshi Tomiyasu, Teiichiro Umezawa, Takashi Morikawa, Masato Kobayashi, Masashi Suzuki +2 more | 2008-09-02 |
| 7220500 | Magnetic recording medium, and thermal stability measuring method and apparatus of magnetic recording medium | Hiroshi Tomiyasu, Teiichiro Umezawa, Takashi Morikawa, Masato Kobayashi, Masashi Suzuki +2 more | 2007-05-22 |
| 6852010 | Substrate for an information recording medium, information recording medium using the substrate, and method of producing the substrate | Kouji Takahashi, Takemi Miyamoto, Hiroshi Tomiyasu, Tomotaka Yokoyama | 2005-02-08 |
| 6537648 | Substrate for an information recording medium, information recording medium using the substrate and method of producing the substrate | Kouji Takahashi, Takemi Miyamoto, Hiroshi Tomiyasu, Tomotaka Yokoyama | 2003-03-25 |