help to improve it or discuss the issue on the talk page . october 2013 sumitomo clan is one of the largest japanese keiretsu founded by masatomo sumitomo . contents 1 history 1.1 emblem 2 companies using sumitomo s name 2.1 the companies using sumitomo s name which are in the nikkei 225 3 references 4 external links history edit igeta mark the sumitomo clan traces its roots to a bookshop in kyoto founded circa 1615 by a former buddhist priest masatomo sumitomo . 1 considered its spiritual founder even today management of the group is guided by his founder s precepts written in the 17th century . 1 it was copper that made the company famous . riemon soga masatomo sumitomo s brother in law learned western methods of copper refining . in 1590 he established a smelting business named izumiya literally meaning spring shop . 1 the advanced techniques which riemon perfected allowed the extraction of silver from copper ore something which japanese technology had as yet been unable to accomplish . 1 the smelting and smithing business which was begun in kyoto was moved to osaka by the late 17th century . 1 and soga passed control of the company to his son tomomochi who managed its transformation into a major trading house 2 during the edo period 3 sumitomo began to export copper 4 import silk 4 and provide financial services . 5 by 1691 copper mining had been added to the portfolio . 6 7 8 the meiji restoration allowed sumitomo to import and utilize western machines and techniques in its mines . 6 sumitomo soon branched out into even more business areas entering the machine and coal industries as well as the forestry banking and warehousing businesses 6 becoming a zaibatsu 3 or business conglomerate . in 1940s after world war ii almost all clans including the sumitomo clan were dissolved by ghq & japanese government . as a result although there are many companies still using a common word sumitomo in their corporate names the companies are managed independently listed on tokyo and other stock exchanges with highly dispersed shareholders . therefore there are no relationships among the companies using sumitomo s name the companies are not in one group . emblem edit the diamond shaped igeta mark is reminiscent of a type of frame placed over a well in premodern japan and was the logo of riemon soga s izumiya company . 1 companies using sumitomo s name edit company industry mazda motor corporation automobiles mitsui sumitomo insurance insurance nec corporation electronics and electric products nippon sheet glass co ltd glass osaka titanium technologies co ltd titanium products sumisho computer systems 9 information technology sumitomo bakelite co. ltd. chemicals sumitomo chemical chemicals sumitomo corporation integrated trading sumitomo electric bordnetze auto parts suppliers sumitomo electric industries ltd. electronics and electric products sumitomo forestry co. ltd. lumber and housing sumitomo heavy industries machinery weaponry and shipbuilding sumitomo life insurance sumitomo metal industries steel sumitomo metal mining co. ltd. non ferrous metal sumitomo mitsui banking corporation finance sumitomo mitsui construction co. ltd. construction sumitomo mitsui trust holdings finance sumitomo osaka cement cement sumitomo precision products precision machinery sumitomo realty & development co. ltd. real estate sumitomo riko rubber materials for vehicles printers and constructions sumitomo rubber industries tires and rubber products the sumitomo warehouse co. ltd. warehousing the companies using sumitomo s name which are in the nikkei 225 edit nec corporation sumitomo chemical sumitomo corporation sumitomo electric industries sumitomo heavy industries sumitomo metal industries sumitomo metal mining co. ltd. sumitomo mitsui financial group sumitomo mitsui trust holdings sumitomo osaka cement sumitomo realty & development co. ltd. references edit a b c d e f company history sumitomo electric sumitomo in history part i a business spirit alive and well after 400 years a meeting with copper sumitomo official site a b sumitomo group encyclop dia britannica article britannica.com a b sumitomo in history part ii japanese copper across the sea contributing to the wealth of the nation sumitomo official site sumitomo in history part iii japan s kitchen new businesses emerge sumitomo official site a b c about us sumitomo corporation official site sumitomo in history part iv milestones major copper vein discovered sumitomo official site sumitomo in history part vi a time of adversity the end of rule by the samurai sumitomo official site corporate history sumisho computer systems corporation . scs.co.jp . retrieved 2010 09 19 . external links edit english sumitomo group public affairs committee english company profile and the origins of sumitomo official sumitomo site v t e sumitomo group public relations committee members of hakusuikai are bolded . hakusuikai is an association of the presidents of the sumitomo companies . mitsui group companies construction sumitomo mitsui construction sumitomo forestry sumitomo densetsu chemicals and pharmaceuticals sumitomo chemical sumitomo bakelite dainippon sumitomo pharma sumitomo seika chemicals rubber glass and ceramics nippon sheet glass sumitomo osaka cement sumitomo rubber industries sumitomo riko steel sumitomo metal industries non ferrous metals sumitomo electric industries sumitomo metal mining sumitomo light metal industries sumitomo wiring systems machinery sumitomo heavy industries sumitomo s.h.i. construction machinery sumitomo precision products electrical equipment nec nissin electric meidensha trading sumitomo corporation sumikin bussan corporation finance and insurance sumitomo mitsui banking corporation sumitomo trust and banking sumitomo life ms & ad insurance group sumitomo mitsui card sumitomo mitsui finance and leasing sumitomo mitsui auto service smbc friend securities real estate sumitomo realty & development transport and warehousing sumitomo warehouse information and communication sumisho computer systems japan research institute sumitomo zaibatsu sumitomo family v t e japan s zaibatsu keiretsu and modern corporate groups big 4 zaibatsu preceding world war ii sumitomo mitsui mitsubishi yasuda in chronological order of founding second tier zaibatsu preceding world war ii asano fujita furukawa kawasaki mori nakajima nichitsu nissan nisso nomura okura riken shibusawa suzuki big 6 keiretsu until roughly 10 years after japan bubble ended in 1991 sumitomo mitsui mitsubishi fuyo dai ichi kangyo sanwa transitionary keiretsu ufj originated from sanwa group later renamed to midori kai current groups sumitomo mitsui mitsubishi mizuho midori kai furukawa nissan nomura toyota retrieved from https en.wikipedia.org w index.php title sumitomo group & oldid 743850259 categories sumitomo groupconglomerate companies of japankeiretsuzaibatsucompanies based in osaka prefecturecompanies based in hy go prefecturecompanies based in tokyocompanies established in the 1630s1630 establishments in japanmitsuihidden categories articles to be expanded from october 2013articles containing japanese language text navigation menu personal tools not logged intalkcontributionscreate accountlog in namespaces article talk variants views read edit view history more search navigation main pagecontentsfeatured contentcurrent eventsrandom articledonate to wikipediawikipedia store interaction helpabout wikipediacommunity portalrecent changescontact page tools what links hererelated changesupload filespecial pagespermanent linkpage informationwikidata itemcite this page print export create a bookdownload as pdfprintable version in other projects wikimedia commons languages danskdeutschespa ol fran ais italianolietuvi nederlands polskiportugu s suomisvenska ti ng vi t edit links this page was last modified on 11 october 2016 at 16 37 . text is available under the creative commons attribution sharealike license ; additional 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