1938

April, 1938
Originally founded as Inaba Denki Seisakusho in Sakai City, Osaka

1941~1965

May, 1949
Established as Inaba Denki Sangyo Co., Ltd. in Higashinari-ku, Osaka

1966~1987

August, 1974
Head office moved to Itachibori, Nishi-ku, Osaka

September, 1976
Operating divisions spun off into five subsidiaries: Inaba Sangyo Kiki Co., Ltd., Inaba Densetsusizai Co., Ltd., Kinki Inaba Denzai Co., Ltd., Osaka Inaba Denki Co., Ltd., and Tokyo Inaba Denki Co., Ltd.

September, 1978
Labor-saving Equipment Division split from Inaba Sangyo Kiki Co., Ltd. to become Inaba Denko Co., Ltd.

August, 1979
Established Inaba Engineering Co., Ltd.

1988~2008

April, 1988
Merged with Inaba Sangyo Kiki Co., Ltd., Inaba Densetsusizai Co., Ltd., Kinki Inaba Denzai Co., Ltd., Osaka Inaba Denki Co., Ltd., Tokyo Inaba Denki Co., Ltd., and Inaba Denko Co., Ltd.

April, 1992
Opened the Nara factory in Gose City, Nara Prefecture

February, 1993
Listed on the second section of Osaka Stock Exchange

April, 1993
Opened the Ibaraki factory in Chikusei City, Ibaraki Prefecture

October, 1993
Acquired Nihon Autome Co., Ltd.

November, 1995
Opened the Fukuoka factory in Ogori City, Fukuoka Prefecture

September, 1996
Listed on the second section of Tokyo Stock Exchange

September, 1997
Designated a first section stock on Tokyo and Osaka exchanges

May, 1998
Jointly established ITF Co., Ltd. with Toshiba Lighting & Technology Corporation and Fujikura Ltd.

April, 1999
Established Inaba Building Management Co., Ltd. (presently Inaba Business Service Co., Ltd.)

December, 1999
Completed construction of the present head office building

May, 2001
Acquired Toko Electric Industrial Co., Ltd.

October, 2002
Opened the Tokyo Distribution Center in Koto-ku, Tokyo

March, 2004
Opened the Osaka Distribution Center in Higashiosaka City, Osaka

2009~2020

October, 2009
Established Kasuga Electric Works Ltd.

November, 2009
Reorganized, acquiring the business of former Kasuga Electric Works Ltd. (including the stock of Siam Orient Electric Co., Ltd.(SOE))

February, 2012
Opened the Tokyo Head Office in Minato-ku, Tokyo

February, 2012
Transferred all outstanding shares in Inaba Business Service Co., Ltd.

June,2012
Liquidated Nihon Autome Co., Ltd.,Inaba Engineering Co., Ltd.

May, 2013
Acquired PATLITE Corporation

January,2014
Liquidated Toko Electric Industrial Co., Ltd.

March, 2014
Opened the new factory of SOE in Thailand.

October, 2017
Merged PATLITE Corporation and Kasuga Electric Works Ltd.