Patents by Inventor Panuwat Rodchom

Panuwat Rodchom 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).

  • Method and apparatus for measuring a pitch static attitude of a head stack assembly
    Patent number: 8964179
    Abstract: A tester including a laser transmitter, a laser receiver, a zero reference plane located between the laser transmitter and the laser receiver, a tower reference plane located between the laser transmitter and the laser receiver, wherein the tower reference plane defines an aperture, and a controller. The controller is configured to measure a pitch static attitude of a head stack assembly by at least determining a zero axis, determining a first horizontal position of the aperture and a second horizontal position of the aperture, determining a mid-point of a first slider of the head stack assembly, determining a first vertical position of the aperture, determining a first horizontal line, and generating a pitch static attitude reference line corresponding to a pitch static attitude of the first slider based on a least squares approximation using the mid-point of the first slider and the first horizontal line.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: February 24, 2015
    Assignee: Western Digital Technologies, Inc.
    Inventors: Chaiya Thongrattana, Angkhan Thongsuksai, Phatrasiri Rungsang, Panuwat Rodchom, Porntep Prangprasit