Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8920872 | Method of producing a magnetic recording disc | Kae Itoh, Koichi Shimokawa | 2014-12-30 |
| 8846137 | Method of manufacturing a magnetic disk | Koichi Shimokawa, Kae Itoh | 2014-09-30 |
| 8697262 | Lubricant for magnetic disc, magnetic disc and method of producing the same | Kae Itoh, Koichi Shimokawa | 2014-04-15 |
| 8492011 | Lubricant compound for a magnetic disk, magnetic disk, and method of manufacturing the same | Kae Itoh, Koichi Shimokawa | 2013-07-23 |
| 8178480 | Lubricant for magnetic disk, process for producing the same, and magnetic disk | Koichi Shimokawa, Kota Suzuki | 2012-05-15 |