Changed its name to the Machine Works YAMANAKA, the new bearing factory was founded.
1944
Machinery manufacturing sector changed its name to Japan Iron Works Co., Ltd.
1946
Marketing department changed its name to the mountain bearing Co., Ltd.
1953
Real estate department was established, National treasure Shoji Co., Ltd.. National treasure building was constructed.
1958
Steel structure department established as the center of the heavy machinery industry YAMANAKA Co., Ltd.
1961
Tokyo casing Co., Ltd joined YAMANAKA Group Co., Ltd.
1968
Shaft center Co., Ltd. joined YAMANAKA Group Co., Ltd.
1974
Yamanaka Co., Ltd. was renamed from the shaft Co., Ltd.
1984
The manufacturing sector was gathered and a new plant relocation was opened in Inage, Chiba Naganuma.
1985
Nippon Tekko Co., Ltd.changed its name to Yamanaka Tekko Co., Ltd.
Heavy Machinery Co., Ltd. changed its name to Heavy Industries Yamanaka Co., Ltd.,
1993
Distribution center was established in steel Inage-ku, Chiba.
1994
Marketing, manufacturing sector was merged as the main operational Corporation YAMANAKA Ltd.
1998
Yamanaka Co., Ltd. Was divided into sales department (including part of the manufacturing sector) and real estate sector.
Yamanaka Co., Ltd. was established as a sales department and real estate sector corporation to be renamed Yamanaka, Inc.
1999
Distribution Center and steel structure center was moved to Chiba District Hanamigawa.
2002
Steel structure center opened a second plant in Chiba district Hanamigawa.
Higashi-Yodogawa-ku, Osaka, opened a branch in Osaka.
2006
Capital was increased to $ 200 million $ 55 one million yen.
2009
Plant and distribution center of the first factory-made steel structure of Community Center Hanamigawa moved to gather over in Midori-ku, Chiba City.
Chiba factory was opened as a distribution center and a steel structure center.
2011
June 2011 a joint venture in Shanghai, China MARUKI (Shanghai) Trading Co., Ltd.
