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																		1902 
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																		Tohzo Fujio founded the company and started the manufacture undertaking of physical and chemical glass devices. 
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																		1941 
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																		The company became a cooperative factory of Nichibo Sakagoshi Navy Control Factory 
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																		1945 
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																		At the end of World War II, the company re-started the manufacture of glass devices for artificial silk, and the physical and chemistry glass devices.  
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																		1948 
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																		The company was re-organized into a stock company. 
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																		1959 
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																		The company newly established Nanajo Factory. 
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																		1959 
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																		Ceramics Processing Department started its manufacture. 
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																		1965 
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																		Department for balances started its manufacture 
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																		1968 
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																		The capital was increased to 5 million yen. 
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																		1969 
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																		The company rebuilt Nanajo Factory, and Ceramics Department started its manufacture. 
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																		1971 
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																		The company concluded the Keiji Sales Special Agent together with the start of Pyrex domestic production by Iwaki Glass Co., Ltd. 
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																		1973 
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																		The capital was increased to 15 million yen. 
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																		1974 
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																		Mikuni Factory (ceramics) started its operation. 
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																		1978 
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																		The capital was increased to 20 million yen. 
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																		1981 
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																		The company newly installed the commodity warehouse. 
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																		1986 
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																		The company concluded the filter paper agent agreement with Advantec Toyo Co., Ltd. 
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																		1990 
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																		The company concluded the  agent agreement with Yamato science. 
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																		1992 
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																		The company concluded the electronic balance agent agreement with A & D Co., Ltd. 
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																		1992 
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																		The capital was increased to 25 million yen. 
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																		1992 
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																		The company installed the branch office of Sales Department. 
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																		1993 
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																		The company installed Mibu Factory, and started the manufacture of fine ceramics. 
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																		1995 
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																		The capital was increased to 30 million yen. 
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																		1994 
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																		The company bought the adjacent site to Nanajo Factory and additionally installed the factory. 
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																		2000 
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																		Glass flow started its manufactur. 
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																		2001 
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																		The company newly established Sain Factory (ceramics), started its operation. 
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																		2002 
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																		The company conduded the agent agreement whith Tokyo Rikakikai Co., Ltd. 
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																		2003 
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																		The high precision glass Vessels for the dissolution test started its manufacture. 
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