1957	December	Shouzou Maruyoshi established a factory in Tokyo.
1966	June	Incorporated.
1972	August	Capital stock was 10 million JPY.
	September	Formed a capital alliance with Jalux Inc., affiliated company of Japan Airlines Corporation. After 5 million yen contribution from Jalux Inc., capital was increased to 15 million JPY.
	December	Opened a new factory (860 square meters) in Choshi city, Chiba (one hour drive from Narita International Airport)
1980	May	Moved the head office to Maruyoshi building in Bunkyo-ku, Tokyo.
	August	Capital was increased to 30 million JPY.
1993	July	Hirokazu Maruyoshi took over as president. Capital was increased to 98 million JPY.
2008	October	Opened a factory in Yachimata, Chiba (thirty minutes drive from Narita Airport) for expansion of production.
2010	November	Acquired land for a new Yachimata factory.
2019	July	Yuki Yanagawa took over as president.