Ex parte YASUHO et al. - Page 6




          Appeal No. 1999-1454                                        Page 6           
          Application No. 08/596,343                                                   


          skill in the art the invention set forth in claims 1-15.                     
          Accordingly, we reverse.                                                     
          In rejecting claims under 35 U.S.C. § 103, it is                             
          incumbent upon the examiner to establish a factual basis to                  
          support the legal conclusion of obviousness.  See In re Fine,                
          837 F.2d 1071, 1073, 5 USPQ2d 1596, 1598 (Fed. Cir. 1988).  In               
          so doing, the examiner is expected to make the factual                       
          determinations set forth in Graham v. John Deere Co., 383 U.S.               
          1, 17, 148 USPQ 459, 467 (1966), and to provide a reason why                 
          one having ordinary skill in the pertinent art would have been               
          led to modify the prior art or to combine prior art references               
          to arrive at the claimed invention.  Such reason must stem                   
          from some teaching, suggestion or implication in the prior art               
          as a whole or knowledge generally available to one having                    
          ordinary skill in the art.  Uniroyal, Inc. v. Rudkin-Wiley                   
          Corp., 837 F.2d 1044, 1051, 5 USPQ2d 1434, 1438 (Fed. Cir.),                 
          cert. denied, 488 U.S. 825 (1988); Ashland Oil, Inc. v. Delta                
          Resins & Refractories, Inc., 776 F.2d 281, 293, 227 USPQ 657,                
          664 (Fed. Cir. 1985), cert. denied, 475 U.S. 1017 (1986); ACS                
          Hosp. Sys., Inc. v. Montefiore Hosp., 732 F.2d 1572, 1577, 221               









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