Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8802247 | Perpendicular magnetic recording medium with high medium S/N | Hiroyuki Matsumoto, Reiko Arai, Yuzuru Hosoe, Katsumi Mabuchi | 2014-08-12 |
| 8388414 | Apparatus for cleaning magnetic disks and methods for manufacturing magnetic disks | Naoto Endou, Toshinori Ono, Hiroyuki Matsumoto, Fumihito Takahashi | 2013-03-05 |
| 8221192 | Magnetic-recording-disk test-head and method of manufacturing a magnetic-recording disk using the magnetic-recording-disk test-head | Hidekazu Kashiwase, Hiroyuki Suzuki, Takayoshi Ohtsu, Kiyoshi Hashimoto | 2012-07-17 |
| 8018673 | Disk drive, method for measuring clearance and method for writing servo patterns | Manabu Saikawa, Atsushi Takeichi, Yuki Hashimoto, Kenji Kuroki | 2011-09-13 |
| 7875372 | Perpendicular magnetic recording medium and method of manufacturing the same | Toshinori Ono, Hiroyuki Matsumoto, Hiroshi Kanai | 2011-01-25 |
| 7718282 | Magnetic recording medium with corrosion resistance and manufacturing method | Shigehiko Fujimaki, Toshinori Ono | 2010-05-18 |
| 7147943 | Magnetic recording medium, the manufacturing method and magnetic recording apparatus using the same | Toshinori Ono, Yuuichi Kokaku, Hiroyuki Matsumoto, Hiroshi Tani, Tomonori Kozaki +4 more | 2006-12-12 |
| 7042678 | Magnetic head slider and magnetic disc unit | Ryuji Tsuchiyama, Hiroshi Tani, Mikio Tokuyama, Hidekazu Kohira, Masayuki Kurita +2 more | 2006-05-09 |
| 6927942 | Magnetic head slider and magnetic head slider assembly having a leading slope angle smaller than a trailing slope angle | Hiroshi Tani | 2005-08-09 |
| 6870704 | Magnetic disc apparatus and its fabricating method | Hiroshi Tani, Hiroyuki Matsumoto, Takayuki Nakakawaji | 2005-03-22 |
| 6852432 | Magnetic recording media and magnetic disk apparatus | Naoto Endo, Noriyoshi Goda, Yuzuru Hosoe, Akira Kato | 2005-02-08 |
| 6816341 | Hard disk drive utilizing second lubricant over a first lubricant having a phosophezine group | Hiroyuki Matsumoto, Hiroshi Tani, Koji Sonoda, Takayuki Nakakawaji, Mina Amo +1 more | 2004-11-09 |
| 6773784 | Magnetic disk having ultrathin carbon protective film and magnetic disk apparatus | Kouji Sonoda, Hiroshi Tani, Hiroyuki Matsumoto, Toshinori Ono | 2004-08-10 |
| 6509111 | Magnetic recording media and magnetic disk apparatus | Naoto Endo, Noriyoshi Goda, Yuzuru Hosoe, Akira Kato | 2003-01-21 |
| 6395412 | Magnetic recording media, manufacturing method for thereof and apparatus for using the media | Yoshinori Honda, Yuuichi Kokaku, Toshinori Ono | 2002-05-28 |
| 5906884 | Magnetic recording medium | Yotsuo Yahisa, Yoshibumi Matsuda, Joe Inagaki, Enji Fujita, Takao Yonekawa +3 more | 1999-05-25 |