Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9984715 | Magnetic disk and manufacturing method thereof | Katsushi Hamakubo, Kae Itoh | 2018-05-29 |
| 9558778 | Lubricant compound for magnetic disk and magnetic disk | Kota Suzuki, Katsushi Hamakubo, Kae Itoh | 2017-01-31 |
| 9177586 | Magnetic disk and manufacturing method thereof | Katsushi Hamakubo, Kae Itoh | 2015-11-03 |
| 8999534 | Lubricant for magnetic disk and magnetic disk | Katsushi Hamakubo | 2015-04-07 |
| 8999533 | Magnetic disk and method of manufacturing the same | — | 2015-04-07 |
| 8920872 | Method of producing a magnetic recording disc | Kae Itoh, Katsushi Hamakubo | 2014-12-30 |
| 8846137 | Method of manufacturing a magnetic disk | Katsushi Hamakubo, Kae Itoh | 2014-09-30 |
| 8794196 | Chain saw | Kiminobu Sato | 2014-08-05 |
| 8697262 | Lubricant for magnetic disc, magnetic disc and method of producing the same | Katsushi Hamakubo, Kae Itoh | 2014-04-15 |
| 8492011 | Lubricant compound for a magnetic disk, magnetic disk, and method of manufacturing the same | Kae Itoh, Katsushi Hamakubo | 2013-07-23 |
| 8178480 | Lubricant for magnetic disk, process for producing the same, and magnetic disk | Katsushi Hamakubo, Kota Suzuki | 2012-05-15 |
| 8062778 | Magnetic recording disk and method for manufacture thereof | Kota Suzuki | 2011-11-22 |
| 8012920 | Lubricant for magnetic disks, method for producing the lubricant used in the magnetic disks, and method for manufacturing the same | — | 2011-09-06 |
| 7833641 | Magnetic disk | Hiroshi Tomiyasu | 2010-11-16 |
| 7531485 | Method of producing a lubricant for a magnetic disk, lubricant for a magnetic disk, magnetic disk, and method of producing a magnetic disk | Kota Hara, Kota Suzuki | 2009-05-12 |
| 7277254 | Magnetic recording disk and process for manufacture thereof | Kota Hara | 2007-10-02 |
| 7252897 | Magnetic recording disk and process for manufacture thereof | Kota Hara | 2007-08-07 |
| 7105241 | Magnetic disk and method of manufacturing same | Masafumi Ishiyama | 2006-09-12 |
| 7045215 | Magnetic recording disk and process for manufacture thereof | — | 2006-05-16 |