Ex parte MASAKI et al. - Page 2




          Appeal No. 1998-0146                                                        
          Application 08/407,058                                                      

               This is a decision on appeal under 35 U.S.C. § 134 from                
          the final rejection of claims 1, 2, 4-8, and 10.  Claim 3                   
          stands objected to.  Claim 9 has been canceled.                             
               We affirm-in-part.                                                     
                                    BACKGROUND                                        
               The disclosed invention relates to an optical disk                     
          apparatus in which an optical head objective lens is cleaned                
          using a cleaning disk.  The cleaning disk, having a brush,                  
          is mounted for rotation in place of the optical disk.  The                  
          objective lens is controlled to reciprocate back and forth                  
          in a radial direction while simultaneously being moved                      
          axially toward and away from the rotating cleaning disk.                    
          Thus, there are three simultaneous cleaning motions:  (1)                   
          rotation of the cleaning disk; (2) reciprocating radial                     
          movement of the lens; and (3) axial up-and-down movement of                 
          the lens.                                                                   
               Claim 1 is reproduced below.                                           
                    1.  An optical disk apparatus comprising:                         
                    a shaft rotatably driven by a motor;                              
                    a cleaning disk, having a brush, removably mounted                
               on said shaft;                                                         


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