Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7534750 | Composition, magnetic recording medium, head slider, and magnetic recording device | Hiroshi Chiba, Yukiko Oshikubo, Keiji Watanabe, Eishin Yamakawa | 2009-05-19 |
| 7259937 | Magnetic recording device having a head slider utilizing a water-repellant resin lubricant having specified surface tension properties | Hiroshi Chiba, Keiji Watanabe, Yoshiharu Kasamatsu, Takayuki Musashi, Yukiko Oshikubo +3 more | 2007-08-21 |