Ex parte AMANO et al. - Page 1




              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              written for publication and is not binding                              
              precedent of the Board.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, a               






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