Issued Patents All Time
Showing 26–50 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7901803 | Perpendicular magnetic recording medium, manufacturing method therefor, and magnetic read/write apparatus using the same | Tomoyuki Maeda, Takeshi Iwasaki, Futoshi Nakamura, Hiroshi Sakai, Kenji Shimizu +1 more | 2011-03-08 |
| 7901801 | Perpendicular magnetic recording medium and magnetic recording apparatus | Tomoyuki Maeda | 2011-03-08 |
| 7867638 | Magnetic recording medium, method for producing thereof, and magnetic recording and reproducing apparatus | Akira Sakawaki, Kenji Shimizu, Kazuo Kobayashi, Hiroshi Sakai, Takeshi Iwasaki +2 more | 2011-01-11 |
| 7781081 | Magnetic recording medium, manufacturing method for the magnetic recording medium, and magnetic read/write apparatus | Tomoyuki Maeda, Takeshi Iwasaki, Futoshi Nakamura, Hiroshi Sakai, Kenji Shimizu +1 more | 2010-08-24 |
| 7695832 | Perpendicular magnetic recording medium and perpendicular magnetic recording/reproducing apparatus | — | 2010-04-13 |
| 7666531 | Perpendicular magnetic recording medium and magnetic recording/reproduction apparatus | Takeshi Iwasaki, Akira Kikitsu, Tomoyuki Maeda | 2010-02-23 |
| 7622204 | Magnetic recording medium and magnetic recording apparatus | Tomoyuki Maeda, Akira Kikitsu, Takeshi Iwasaki | 2009-11-24 |
| 7601445 | Perpendicular magnetic recording medium and magnetic recording/reproducing apparatus | Takeshi Iwasaki, Futoshi Nakamura, Tomoyuki Maeda, Hiroshi Sakai, Akira Sakawaki +1 more | 2009-10-13 |
| 7494725 | Magnetic recording medium, method for manufacturing recording medium and magnetic recording apparatus | Tomoyuki Maeda, Akira Kikitsu, Takeshi Iwasaki | 2009-02-24 |
| 7470474 | Magnetic recording medium, production process thereof, and magnetic recording and reproducing apparatus including both oxide and non-oxide perpendicular magnetic layers | Akira Sakawaki, Kenji Shimizu, Kazuo Kobayashi, Hiroshi Sakai, Takeshi Iwasaki +2 more | 2008-12-30 |
| 7431999 | Perpendicular magnetic recording medium and magnetic recording/reproducing apparatus | Takeshi Iwasaki, Akira Kikitsu, Tomoyuki Maeda | 2008-10-07 |
| 7416794 | Magnetic recording medium, method for manufacturing recording medium and magnetic recording apparatus | Tomoyuki Maeda, Akira Kikitsu, Takeshi Iwasaki | 2008-08-26 |
| 7252896 | Magnetic recording medium and magnetic recording/reproducing apparatus | Futoshi Nakamura, Takashi Hikosaka, Takeshi Iwasaki, Tomoyuki Maeda, Hiroshi Sakai +2 more | 2007-08-07 |
| 7166376 | Magnetic recording medium including a high-magnetostriction layer and magnetic recording/reproducing apparatus | Takashi Hikosaka, Futoshi Nakamura, Takeshi Iwasaki, Tomoyuki Maeda, Hiroshi Sakai +2 more | 2007-01-23 |
| 7141316 | Perpendicular magnetic recording medium and magnetic recording/reproducing apparatus | Takeshi Iwasaki, Takashi Hikosaka, Futoshi Nakamura, Tomoyuki Maeda, Hiroshi Sakai +2 more | 2006-11-28 |
| 7138194 | Magnetic recording medium, method of manufacture therefor, and magnetic read/write apparatus | Kenji Shimizu, Akira Sakawaki, Hiroshi Sakai, Takashi Hikosaka | 2006-11-21 |
| 7132176 | Perpendicular magnetic recording medium and magnetic recording/reproduction apparatus | Takeshi Iwasaki, Takashi Hikosaka, Futoshi Nakamura, Hiroshi Sakai, Kenji Shimizu +1 more | 2006-11-07 |
| 7105239 | Perpendicular magnetic recording medium and magnetic recording/reproducing apparatus using the same | Takashi Hikosaka, Futoshi Nakamura, Takeshi Iwasaki, Hiroshi Sakai, Akira Sakawaki +1 more | 2006-09-12 |
| 7056606 | Magnetic recording medium, method manufacture therefor, and apparatus for magnetic reproducing and reproducing recordings | Kenji Shimizu, Akira Sakawaki, Hiroshi Sakai, Takashi Hikosaka | 2006-06-06 |
| 7033684 | Magnetic recording medium, method of manufacture thereof, and magnetic read/write apparatus | Kenji Shimizu, Akira Sakawaki, Hiroshi Sakai, Takashi Hikosaka | 2006-04-25 |
| 6942936 | Perpendicular magnetic recording medium and magnetic recording/reproduction apparatus | Takashi Hikosaka, Hiroshi Sakai, Akira Sakawaki, Kenji Shimizu | 2005-09-13 |
| 6902835 | Perpendicular magnetic recording medium and magnetic recording apparatus | Takashi Hikosaka, Takeshi Iwasaki, Futoshi Nakamura, Hiroshi Sakai, Kenji Shimizu +1 more | 2005-06-07 |
| 6884519 | Magnetic recording medium, including an HCP structured Ni-alloy control film method of manufacture therefor, and magnetic read/write apparatus | Kenji Shimizu, Akira Sakawaki, Hui Yang, Hiro Mochizuki, Hiroshi Sakai +1 more | 2005-04-26 |
| 6846581 | Perpendicular magnetic recording medium and magnetic recording-reproducing apparatus using the same | Yoichiro Tanaka, Takashi Hikosaka, Futoshi Nakamura | 2005-01-25 |
| 6805981 | Perpendicular magnetic recording medium and perpendicular magnetic recording-reproducing apparatus | Hideo Ogiwara, Takashi Hikosaka, Hiroshi Sakai, Kenji Shimizu | 2004-10-19 |