Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8394516 | Glass substrate for magnetic recording medium and magnetic recording medium | Naomi Matsumoto, Yoichi Hachitani | 2013-03-12 |
| 8356492 | Manufacturing of glass | Kazuhiro Suzuki, Tomonari Hayashi, Shigeru Asanuma | 2013-01-22 |
| 8357459 | Glass for use in substrate for information recording medium, substrate for information recording medium and information recording medium, and their manufacturing method | Kazuo Tachiwana, Yoichi Hachitani, Xuelu Zou, Mikio Ikenishi | 2013-01-22 |
| 8119267 | Glass substrate for magnetic disk and manufacturing method of the same | Hideki Isono, Katsuyuki Iwata, Shinji Eda, Kenichiro Terada | 2012-02-21 |
| 8076014 | Glass for use in substrate for information recording medium, substrate for information recording medium and information recording medium, and their manufacturing method | Kazuo Tachiwana, Yoichi Hachitani, Xuelu Zou, Mikio Ikenishi | 2011-12-13 |
| 7993765 | Perpendicular magnetic recording medium | Kong-Kyeom Kim, Junichi Horikawa | 2011-08-09 |
| 6119483 | Process for producing glass substrate for information recording medium | Koji Takahashi, Kazuhiko Maeda, Shinji Eda, Jun Ozawa, Katsutoshi Ono +1 more | 2000-09-19 |