The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 03, 2015
Filed:
Nov. 26, 2012
Western Digital Technologies, Inc., Irvine, CA (US);
Chaiya Thongrattana, Donmuang, TH;
Angkhan Thongsuksai, Thunyaburi, TH;
Prasertsak Naksakul, Muang, TH;
Teeraporn Srikwanjai, Nakornchaisri, TH;
Chainat Krudpuek, Bangpahun, TH;
Western Digital Technologies, Inc., Irvine, CA (US);
Abstract
A tester for measuring a pitch static attitude of a head stack assembly including a laser transmitter configured to transmit laser beams, and a laser receiver configured to receive the laser beams from the laser transmitter, wherein the laser transmitter and the laser receiver are configured to receive a head stack assembly between the laser transmitter and the laser receiver. The tester also includes a laser guide located between the laser transmitter and the laser receiver, and configured to block the laser beams from entering a gap in the head stack assembly and reaching the laser receiver.