Patents by Inventor Sik Fun Chan

Sik Fun Chan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Thermally assisted magnetic head, head gimbal assembly, hard disk drive and method of manufacturing the thermally assisted magnetic head
    Patent number: 10943613
    Abstract: A thermally assisted magnetic head including a slider and a light source-unit. The slider includes a slider substrate and a magnetic head part. The light source-unit includes a laser diode and a sub-mount. The magnetic head part includes a medium-opposing surface, a light source-opposing surface and a waveguide which guides laser light from the light source-opposing surface to the medium-opposing surface. The slider substrate includes a light source-cavity formed in a light source-placing surface on which the light source-unit is placed. The light source-cavity includes an opening concave part being formed larger than a mount bottom surface of the sub-mount. The mount bottom surface of the sub-mount is inserted into the opening concave part to be joined to the light source-cavity.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: March 9, 2021
    Assignees: SAE Magnetics (H.K.) Ltd., Headway Technologies, Inc.
    Inventors: Ryo Hosoi, Takashi Honda, Seiichi Takayama, Sik Fun Chan, Tai Boon Lee, Dayu Zhou