|1895||Established as Maruyama Shokai ,Takada-machi(present-day Joetsu City in NiigataPrefecture.Production and sale of fire extinguishers commence.|
|1933||Horizontal triple-cylinder power sprayers perfected.|
|1895||Forcibly activated flat valve system sprayer developed.|
|Industrial pump developed.
Maruyama Mfg.Co.,Inc.promoted to the 1st Section of the Tokyo Stock Exchange.
|1986||2-cycle engine commences internal production.|
|1994||ISO9001 certificate granted for sprayer and high pressure pump.|
|1995||Celebrated the centennial anniversary of the foundation.|
|1996||ISO9001 certificate granted for self propelled orchard sprayer and field sprayer.|
|1997||Inage factory was relocated and unified to Togane factory and was changed to Chiba factory (April).|
|2000|| New environment conscious 2 cycle engine was developed.
and passed California emission control (CARB)
|2001||ISO14001 certificate granted for Chiba factory|
|2003||Customer Serivice Center was established|
|2004||The environmental fire extinguisher released (Fire-extinguishing agent recycling) Environmental conscious Orchard Sprayer（ passenger use) was developed.|