Appeal No. 2004-2166 Application No. 09/492,557 It would have been obvious for one of ordinary skill in the art, at the time of the invention[,] to modify the structure of Chen to form the U-shape of Hurst, for the reasons indicated in Hurst, at least at col. 7, lines 6-15, to more effectively concentrate the magnetic field above the word line than could be obtained by a keeper structure not formed in a U shape and encasing the word line. Chen, however, teaches that “[p]inning material 30 is positioned adjacent only to the ends, so as not to effect [sic] the magnetic material in the major domain or domains between the ends” (col. 4, lines 52-55). The examiner has not established that, regardless of this teaching, one of ordinary skill in the art would have been led by the applied prior art to place Chin’s pinning material between the ends. For the above reasons we conclude that the examiner has not carried the burden of establishing a prima facie case of obviousness of the appellant’s claimed invention. DECISION The rejections of claims 34-36, 38, 40 and 41 under 35 U.S.C. § 102(b) over Chen considered with Aharoni, claims 34, 37 and 39 under 35 U.S.C. § 102(e) over Hurst, claims 34, 37 8Page: Previous 1 2 3 4 5 6 7 8 9 10 NextLast modified: November 3, 2007