Issued Patents All Time
Showing 1–25 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8691402 | Perpendicular magnetic recording medium | Osamu Kitakami, Yutaka Shimada, Satoshi Okamoto, Takehito Shimatsu, Hajime Aoi +3 more | 2014-04-08 |
| 8323808 | Perpendicular magnetic recording medium | Osamu Kitakami, Yutaka Shimada, Satoshi Okamoto, Takehito Shimatsu, Hajime Aoi +3 more | 2012-12-04 |
| 8252152 | Perpendicular magnetic recording medium and method of manufacturing the same and product thereof | Yasushi Sakai, Tadaaki Oikawa, Miyabi Nakamura | 2012-08-28 |
| 8105707 | Perpendicular magnetic recording medium | Yasushi Sakai, Shunji Takenoiri | 2012-01-31 |
| 8039045 | Method of manufacturing a disk substrate for a magnetic recording medium | Youichi Tei, Akira Iso, Kazuhito Higuchi, Hajime Kurihara | 2011-10-18 |
| 8039133 | Magnetic recording medium and method for manufacturing the same | Miyabi Nakamura, Takahiro Shimizu, Naoki Takizawa, Tadaaki Oikawa | 2011-10-18 |
| 8034470 | Perpendicular magnetic recording medium and method of manufacturing the medium | Tadaaki Oikawa | 2011-10-11 |
| RE41282 | Perpendicular magnetic recording medium and a method of manufacturing the same | Yasushi Sakai, Tadaaki Oikawa, Miyabi Nakamura | 2010-04-27 |
| 7635498 | Fabrication method for perpendicular magnetic recording media | Yasushi Sakai, Kazuo Enomoto, Sadayuki Watanabe | 2009-12-22 |
| 7622205 | Disk substrate for a perpendicular magnetic recording medium and a perpendicular magnetic recording medium using the substrate | Youichi Tei, Kengo Kainuma, Kazuhito Higuchi, Akira Iso, Hajime Kurihara | 2009-11-24 |
| 7361419 | Substrate for a perpendicular magnetic recording medium, perpendicular magnetic recording medium, and manufacturing methods thereof | Yasushi Sakai, Mitsuo Masuda, Norihiko Nakajima | 2008-04-22 |
| 7311983 | Perpendicular magnetic recording medium and a method for manufacturing the same | Sadayuki Watanabe, Yasushi Sakai | 2007-12-25 |
| 7247395 | Magnetic recording medium exhibiting low noise and high coercive force | Miyabi Nakamura, Takahiro Shimizu, Naoki Takizawa, Tadaaki Oikawa | 2007-07-24 |
| 7205020 | Magnetic recording medium and method for manufacturing same | Tadaaki Oikawa, Takahiro Shimizu, Naoki Takizawa | 2007-04-17 |
| 7183011 | Magnetic recording medium | Miyabi Nakamura, Takahiro Shimizu, Naoki Takizawa, Tadaaki Oikawa | 2007-02-27 |
| 7183013 | Magnetic recording medium and manufacturing method thereof | Tadaaki Oikawa, Takahiro Shimizu, Naoki Takizawa | 2007-02-27 |
| 7160571 | Method of manufacturing a magnetic recording medium | Akira Iso, Takahiro Shimizu, Naoki Takizawa, Miyabi Nakamura | 2007-01-09 |
| 7147942 | Perpendicular magnetic recording medium and method of manufacturing the same and product thereof | Yasushi Sakai, Tadaaki Oikawa, Miyabi Nakamura | 2006-12-12 |
| 7067206 | Perpendicular magnetic recording medium and a method of manufacturing the same | Yasushi Sakai, Tadaaki Oikawa, Miyabi Nakamura | 2006-06-27 |
| 6994924 | Magnetic recording medium and manufacture method therefor | Tadaaki Oikawa, Takahiro Shimizu, Naoki Takizawa, Myabi Nakamura | 2006-02-07 |
| 6913837 | Perpendicular magnetic recording medium and fabrication method thereof | Yasushi Sakai, Kazuo Enomoto, Sadayuki Watanabe | 2005-07-05 |
| 6899964 | Magnetic recording medium and method for manufacturing the same | Miyabi Nakamura, Takahiro Shimizu, Naoki Takizawa, Tadaaki Oikawa | 2005-05-31 |
| 6884520 | Perpendicular magnetic recording medium and method of manufacturing the same and product thereof | Tadaaki Oikawa, Shunji Takenoiri, Miyabi Nakamura | 2005-04-26 |
| 6826825 | Method for manufacturing a magnetic recording medium | Naoki Takizawa, Takahiro Shimizu, Tadaaki Oikawa | 2004-12-07 |
| 6794028 | Perpendicular magnetic recording medium and a method of manufacturing the same | Yasushi Sakai, Tadaaki Oikawa, Miyabi Nakamura | 2004-09-21 |