Ex parte STAGEBERG et al. - Page 7




          Appeal No. 1997-3473                                                        
          Application No. 08/331,684                                                  


          the top paddle extends through aperture 16 (answer-top of page              
          4).  (2)  The Examiner further states:                                      
               Additionally, the area between insulation (13) and                     
               (25), filled by the magnetic pole (12), as depicted                    
               in FIGS. 12 and 13, is also considered to be a                         
               cavity substantially containing a top magnetic pole                    
               piece (12) in which a height of the top magnetic                       
               pole piece (12) is “defined” by the depth of the                       
               cavity.  (Answer-page 4.)                                              
          And (3) where the Examiner states:                                          
               Alternatively, the insulation portion (28) is                          
               considered to have a “cavity”, i.e., if the magnetic                   
               head including portions (11-16, 21,22,25,26 and 81)                    
               were removed, a cavity would exist.  (Answer-page                      
               4.)                                                                    
               Appellants argue that Kawabe’s aperture 16 is a contact                
          hole, and as such, does not define at least a portion of the                
          shape of the top paddle region (brief-page 5).                              
               We agree with the Examiner that Kawabe’s contact hole 16               
          can be considered an aperture, and part of that aperture can                
          be looked upon as a cavity.  “However, words of ordinary usage              
          must nonetheless be construed in the context of the patent                  
          documents.  Thus the court must determine how a person of                   
          experience in the field of this invention would, upon reading               
          the patent documents, understand the words used to define the               


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