The opinion in support of the decision being entered today was not written for publication and is not binding precedent of the Board. Paper No. 29 UNITED STATES PATENT AND TRADEMARK OFFICE ____________ BEFORE THE BOARD OF PATENT APPEALS AND INTERFERENCES ____________ Ex parte TOSHIO AMANO, HISAYOSHI FUJIMOTO, YASUSHI EMA, YASUHISA FUJII, and NOBUHISA ISHIDA ____________ Appeal No. 1999-1560 Application No. 08/974,108 ____________ HEARD: May 23, 2001 ____________ Before HAIRSTON, GROSS, and BLANKENSHIP, Administrative Patent Judges. GROSS, Administrative Patent Judge. DECISION ON APPEAL This is a decision on appeal from the examiner's final rejection of claims 1 through 20, which are all of the claims pending in this application. Appellants' invention relates to an ink jet printing head. A main frame supports a head assembly having pressure chambers filled with ink and corresponding piezoelectric elements. Each chamber's volume varies with a voltage applied to the associated piezoelectric element. A hollow portion in the center of the main frame, aPage: 1 2 3 4 5 6 7 8 9 NextLast modified: November 3, 2007