| US 7,532,435 B2 | ||
| Optical path for a thermal-assisted magnetic recording head | ||
| Matthew P. Dugas, St. Paul, Minn. (US); and Jeffrey A. Wallhoff, New Brighton, Minn. (US) | ||
| Assigned to Advanced Research Corporation, White Bear Lake, Minn. (US) | ||
| Filed on Jan. 10, 2006, as Appl. No. 11/328,847. | ||
| Application 11/328847 is a continuation of application No. 10/600561, filed on Jun. 19, 2003, granted, now 6,996,033. | ||
| Claims priority of provisional application 60/389802, filed on Jun. 19, 2002. | ||
| Claims priority of provisional application 60/413190, filed on Sep. 24, 2002. | ||
| Prior Publication US 2007/0008659 A1, Jan. 11, 2007 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. G11B 5/127 (2006.01); G11B 5/02 (2006.01) | ||
| U.S. Cl. 360—125.74 [360/125.31; 360/59] | 18 Claims |
| 1. A head/load beam assembly for transducing data with a concentric track of a magnetic recording medium, the assembly comprising:
a slider including an air-bearing surface;
a transducing head mounted on a trailing face of the slider, the transducing head having a first pole and a second pole separated
by a gap;
a closure partially connecting the first pole and the second pole generally at the back of the first pole and the second pole,
the closure including a first closure and a second closure split apart from each other; and
a waveguide disposed in a distinct plane between the first and second poles and extending within the gap and between the first
and second closures without bending, turning, or extending within the first pole or the second pole so as to decrease a magnetic
reluctance and increase a write efficiency of the transducing head.
|