History
Location

Apr 1st 1954 Nagata Seisakusho was established
April 1st 1968 Head Office is moved to Daiei-cho,Okaya City (current location).
Jan 4th 1972 Nagata Sesakusho is reorganized into Nagata Seisakusho Ltd.
Sep 2nd 1987 Delivery Center is constructed.
Sep 1st 1988 Nagata Co., Ltd. is established.
May 21st 1992 Ibaraki Office is opened.
Apr 1st 1994 Sun-Bright Co., Ltd. joins the Group.
Jun 21st 1994 Akita Office is opened.
Dec 1st 1995 Gosho Factory of Nagata Seisakusho Ltd. is newly built.
Jan 1st 1997 Nagata Seisakusho Ltd. is reorganized into Nagata Seisakusho Co., Ltd.
Mar 1st 1998 Kato Dia Ltd. is founded.
Feb 10th 1999 Sendai Office is opened.
Jul 1st 2000 Head Office of Suntec Dia Co.,Ltd. is newly built in new location.
Kato Dia Ltd. is reorganized as Suntec Dia Co., Ltd.
Oct 2001 Jakarta Branch Office is opened.
Jan 1st 2002 Tokyo Office is opened.
Apr 1st 2002 Nagata Hong Kong Co.,Ltd. Is established.
Jan 1st 2004 Kanto Business Office is opened.
Apr 1st 2004 50th anniversary of Nagata Seisakusho Co.,Ltd.is celebrated.
Dec 1st 2004 Nagata Shanghai International Trade Co.,Ltd. Is established.
Mar 1st 2005 Ustunomiya Office is opened.
Dec 2006 Head office, Gosho factory, Ustunomiya office gained ISO14001 certification
Jul 1st 2008 New Head Office is completed.
Jan 1st 2009 Tokyo office is moved to current location
Dec 2009 Tokyo office gained ISO14001 certification
Jan 2010 Osaka Business Office is opened.
Apr 2010 Oikawa factory is opened
Jul 2010 PT.Nagata Opto Indonesia is opened.
Mar 2017 Utsunomiya office is moved to current location