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                        Phosphonocephem compound
                    
                                            
                                - 
                                    Patent number 7,419,973
                                
 
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                                    Issue date Sep 2, 2008
                                
 
                        
                                            
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                                    Takeda Pharmaceutical Company Limited
                                 
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                                    Tomoyasu  Ishikawa
                                 
                        
                                            
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                                    A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
                                 
                        
                 
             
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                        Phosphonocephem compound
                    
                                            
                                - 
                                    Patent number 6,906,055
                                
 
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                                    Issue date Jun 14, 2005
                                
 
                        
                                            
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                                    Takeda Chemical Industries, Ltd.
                                 
                                - 
                                        
                                    Tomoyasu  Ishikawa
                                 
                        
                                            
                                - 
                                        
                                    A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
                                 
                        
                 
             
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                        Cephem compounds
                    
                                            
                                - 
                                    Patent number 4,772,682
                                
 
                                - 
                                    Issue date Sep 20, 1988
                                
 
                        
                                            
                                - 
                                        
                                    Fujisawa Pharmaceutical Co., Ltd.
                                 
                                - 
                                        
                                    Tsutomu  Teraji
                                 
                        
                                            
                                - 
                                        
                                    C07 - ORGANIC CHEMISTRY
                                 
                        
                 
             
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                        Cephem intermediates
                    
                                            
                                - 
                                    Patent number 4,654,422
                                
 
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                                    Issue date Mar 31, 1987
                                
 
                        
                                            
                                - 
                                        
                                    Fujisawa Pharmaceutical Co., Ltd.
                                 
                                - 
                                        
                                    Tsutomu  Teraji
                                 
                        
                                            
                                - 
                                        
                                    C07 - ORGANIC CHEMISTRY