Sept. 15, 
            1949 
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            ROHTO Pharmaceutical Co., Ltd. established. 
            Kiro Yamada appointed president. Capital at 10 million yen. 
             
            
             
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            | 1952 | 
            
            
            Launched "ROHTO Peni-my" eye drops. 
            Radio worked as an effective advertising medium, making this product a big hit. 
            
             
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            | 1954 | 
            
            
            Launched "Siron" gastrointestinal medicine. 
            Radio commercials and newspaper advertisement were successful, making it a top-selling product at a record sales level of 3.3 million units per month. 
            
             
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            | 1959 | 
            
            
            Head office and factory completed in the current location, Ikuno-ku Osaka. 
            The integrated establishments having a philosophy of "ROHTO Utopia," the workers' paradise; and the state-of-the-art manufacturing facilities attracted many visitors every day. 
            
             
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            | 1961 | 
            ROHTO Pharmaceutical listed on the Second Section of Osaka Stock Exchange. | 
        
        
            | 1962 | 
            
            
            Launched "Pansiron" gastrointestinal medicine. 
            TV advertising became active as a promotional tool. 
             
            ROHTO Pharmaceutical listed on the Second Section of Tokyo Stock Exchange. 
            
             
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            | 1964 | 
            
            
            Launched "V ROHTO" eye drops.
            It was the first Aspartic Acid-formulated eye drops to relieve eyestrain that laid the foundation for the V ROHTO brand.
            
             
            ROHTO Pharmaceutical listed on the First Section of both the Tokyo Stock Exchange and the Osaka Stock Exchange. 
             
            
             
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            | 1965 | 
            Yamada Swimming Club founded. | 
        
        
            | 1967 | 
            Launched "Pansiron G" gastrointestinal medicine. |