| 1911 |
Sumitomo Electric Wire and Cable Works established 1911. Despite the remarkable development of the electric power business, the nation was still relied on imports for high-grade goods, and its technologies were immature. Lamenting the situation, Kankichi Yukawa, Director and Manager of Sumitomo Head Office, decided to further accelerate the electrical wire business to benefit both Sumitomo and the nation. In the fall of that year, Sumitomo Electric succeeded in the practical application of lead-coated power cables for the first time in Japan, demonstrating a further leap in technology. These cables were used for power transmission from Kyoto Dento's thermal power plant in Fushimi to Kyoto City. |
| 1945 |
Although the war had ended, plants had been hit hard by air strikes and were in a desperate situation. After expressing appreciation to the employees for all their past efforts, then-President Sadao Bekku said that Japan must now rebuild itself as a cultural nation, and that Sumitomo Electric's products are essential to achieving this, and therefore, the company must strive to manufacture products for achieving its mission in whatever form the company would take. In addition to electric wires, Sumitomo Electric also manufactured daily necessities, and other agricultural tools, using materials on hand. |
| 1950 |
Typhoon Jane was a large typhoon that hit Osaka in September 1950, inflicting damage with 336 people dead, 500,000 victims, and 15,000 houses collapsing mainly in the Kansai region. The western plant of Osaka Works was flooded by water. Aluminum overhead transmission cables bound for India were submerged by floodwaters. Although the products could have been made usable by washing them, management decided to re-make them all, with no thought of gain. This clearly shows our traditional spirit of devoting ourselves wholeheartedly to supplying quality products and placing prime importance on reliability. |
| 1954 |
Succeeded in achieving domestic production of oil-tempered wire. |
| 1961 |
Sumitomo Electric's Dywidag sleepers were adopted for use in the Tokaido Shinkansen in 1961, with full-fledged delivery starting in the following year. |
| 1962 |
Dywidag railway sleepers and air suspension for railway ties. |
| 1962 |
In 1962, we developed a diaphragm air spring in cooperation with Sumitomo Metal Industries, Ltd. and supplied to private rail cars and bullet train cars. |
| 1964 |
Sumitomo Electric's parabolic antennas for syncom satellites were used at the 1964 Tokyo Olympic Games, enabling the world's first satellite TV broadcasting of the Olympics. |
| 1970 |
Started production of compound semiconductors. |
| 1970 |
Established first overseas factory in Thailand. |
| 1970 |
Expo' 70 Provide power cables, steel cords for moving walkways and traffic game. |
| 1974 |
Completed the Tokyo Traffic Control Center, one of world's largest. |
| 1974 |
Started production of optical fiber cables. |
| 1998-10 |
設立 : 文書管理パッケージ「楽々Document」発売 |
| 1999-04 |
住友電工ハイテックス(株)および住友電工システムズ(株)情報システム部と統合 : 本社 淀川区西宮原第7進徳ビルに開設 : 東京営業課 新設 |
| 2000-02 |
東京支社 赤坂センタービルディング(現：関電不動産赤坂ビル)に移転 |
| 2000-04 |
アプリケーションシステム構築ツール「楽々Framework for Java」発売 |
| 2001-02 |
本社 SORA21新大阪ビルに移転 |
| 2001-04 |
類似情報検索エンジン「 : QuickSolution : 」発売 |
| 2001-08 |
Web購買パッケージ「楽々Procurement」発売 |
| 2003-01 |
Java開発支援ツール「 : 楽々FrameworkII : 」発売 |
| 2003-04 |
CMM(Capability Maturity Model) レベル3達成 |
| 2004-10 |
マーケティング室 新設 |
| 2004-12 |
IT資産管理システム「 : ManagementCore : 」発売 |
| 2005-04 |
Web購買システム「 : 楽々ProcurementII : 」発売 : ワークフローシステム「 : 楽々WorkflowII : 」発売 |
| 2007-07 |
Web情報検索ツール「楽々ViewII」発売 |
| 2007-08 |
CMMI(Capability Maturity Model Integration) レベル3達成 |
| 2008-01 |
名古屋営業課 新設 : 住友電装コンピュータシステム(株)統合 : 住電軟件(大連)有限公司を100％子会社化 |
| 2008-05 |
ヘルプデスク業務支援システム「 : 楽々SupportSite : 」発売 |
| 2009-06 |
東京支社 芝浦ルネサイトタワーに移転 |
| 2010-03 |
文書管理システム「 : 楽々Document Plus : 」発売 |
| 2011-07 |
CMMIレベル5達成 |
| 2012-10 |
クラウド型Webワークフローサービス「 : 楽々WorkflowII Cloud : 」提供開始 |
| 2013-01 |
東京支社 赤坂センタービルディング(現：関電不動産赤坂ビル)に移転 |
| 2013-03 |
クラウド版 購買・調達システム「 : 楽々ProcurementII Cloud : 」提供開始 |
| 2014-04 |
Webアプリケーション開発基盤「 : 楽々Framework3 : 」発売 |
| 2015-04 |
全文検索・情報活用システム「 : QuickSolution10 : 」発売 |
| 2015-09 |
本社 ニッセイ新大阪ビルに移転 |
| 2017-04 |
AI技術推進室 新設 |
| 2018-01 |
IT資産管理/セキュリティ管理統合システム「 : MCore : 」PostgreSQL版 発売 |
| 2018-04 |
住友電工システムソリューション(株)よりMCore事業を譲渡 |
| 2018-05 |
福岡営業所 開所 |
| 2018-10 |
Excel業務効率化支援ツール「 : 楽々Webデータベース : 」提供開始 |
| 2019-10 |
ノーコード型エクセル業務効率化支援ツール「 : 楽々Webデータベース : 」オンプレミス版発売 |
| 2020-10 |
エンタープライズサーチ「 : QuickSolution : 」にチャットボット機能搭載 |
| 2021-10 |
文書管理・情報共有システム「 : 楽々Document Plus : 」がJIIMA認証取得 |
| 2022-06 |
電子承認・電子決裁システム「 : 楽々WorkflowII : 」と購買管理ステム「 : 楽々ProcurementII : 」がJIIMA認証取得 |
| 2023-07 |
ローコード開発基盤「 : 楽々Framework3 Cloud : 」提供開始 |
| 2023-12 |
クラウドサービスを提供する本社及び東京支社がGCERTIよりISMS認証を取得 |
| 2024-04 |
文書管理システム「 : 楽々Document Plus Cloud : 」提供開始 |
