Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12406690 | Light source unit, thermally assisted magnetic head, head gimbal assembly, and hard disk drive | Seiichi Takayama, Ryuji Fujii, Tai Boon Lee | 2025-09-02 |
| 12400679 | Thermally assisted magnetic head, head gimbal assembly, and hard disk drive | Ryuji Fujii, Seiichi Takayama, Yasutoshi Fujita, Taku Kosuge | 2025-08-26 |
| 12027179 | Thermally assisted magnetic head, light source unit bar like member, and hard disk drive | Seiichi Takayama, Ryuji Fujii, Yasutoshi Fujita, Chi Hung Yuen | 2024-07-02 |
| 11763842 | Method of manufacturing head gimbal assembly, head gimbal assembly and hard disk drive | Chi Hung Yuen, Ryo Hosoi, Seiichi Takayama | 2023-09-19 |
| 11749302 | Method of manufacturing head gimbal assembly, head gimbal assembly and hard disk drive | Chi Hung Yuen, Ryo Hosoi, Seiichi Takayama | 2023-09-05 |
| 11626133 | Method of manufacturing head gimbal assembly, head gimbal assembly and hard disk drive | Chi Hung Yuen, Ryo Hosoi, Seiichi Takayama | 2023-04-11 |