tyo 9433 industry telecommunications founded june 1 1984 ; 32 years ago 1984 06 01 founder kazuo inamori headquarters chiyoda tokyo japan key people takashi tanaka ceo products fixed line and mobile telephony internet services digital television revenue us 42.57 billion 2015 1 net income us 3.1 billion 2012 1 number of employees 18 418 2010 1 parent kyocera 12.76 % toyota 11.09 % subsidiaries kddi r & d labs kddi network & solutions kokusai cable ship okinawa cellular telephone kddi america kddi global website www.kddi.com kddi corporation kddi kddi kabushiki gaisha tyo 9433 is a japanese telecommunications operator formed in october 1 2000 through the merger of ddi corp. daini denden inc. kdd kokusai denshin denwa corp. and ido corp. 2 it has its headquarters in the garden air tower in iidabashi chiyoda tokyo . 3 kddi provides mobile cellular services using the au by kddi brand . isp network and solution services are provided under the au one net brand while au hikari is the name under which long distance and international voice and data communications services and fiber to the home ftth services are marketed . adsl broadband services carry the brand name adsl one and ip telephony over copper is branded as metal plus . contents 1 history 2 lawsuits 3 see also 4 references and footnotes 5 external links history edit kddi building in shinjuku which used to be the headquarters of kdd . on april 1 2002 au by kddi launched 3g networks using cdma2000 1x technology . on november 28 2003 au by kddi launched ev do rev 0 service in the cdma 1x win brand and revolutionized japan s mobile telecommunication industry by introducing fixed rate data subscription plans at a data rate of 2.4 mbit s. on december 2006 au by kddi became the first carrier to provide an ev do rev a service at a data rate of 3.1 mbit s downlink 1.8 mbit s uplink . au by kddi has been very successful with its ez wireless data services ezweb ezweb mail ezappli ezchakuuta ezmovie and eznaviwalk gps using the advanced wap technology . it supports both java me and brew application environments . in november 2004 au by kddi introduced the music include ringtone download service chaku uta full music ringtone full for download of full length songs to mobile phones . within six months from introduction on june 15 2005 customers had downloaded 10 million full length chaku uta full songs . as of end of june 2005 au by kddi has 20 122 700 customers among which 18 723 200 93 % are 3g cdma2000 subscribers . it is japan s second largest cellular operator with an increasing 20.0 % market share . on january 26 2006 the first pointing local search application mapion local search powered by geovector was launched on the kddi network on their gps and compass equipped handsets . 4 kddi announced that it will collaborate with the taiwanese manufacturer htc corp. to sell the mobile phone htc j in japan starting may 2012 . the htc j mobile phone will feature the android 4.0 operating system . 5 6 on october 21 2011 kddi buys content delivery network cdnetworks for 167 million . 7 kddi together with sumitomo group signed an agreement with myanmar state owned myanmar post and telecommunication mpt in july 2014 to jointly operate a mobile phone service in myanmar for next 10 years . 8 9 consumer showroom is set in harajuku called kddi designing studio . tu ka tu ka by kddi a subsidiary company of kddi was a 2g pdc cellular operator in three metropolitan areas tokyo nagoya and osaka which did not apply a 3g license . tu ka was best known for having singer ayumi hamasaki to appear in their commercials . tu ka was closed on march 31 2008 . ddi pocket a phs operator was previously owned by kddi but has now been spun off as willcom . in august 2014 kddi announced it was joining forces with five other global companies including google to build a super fast undersea data transmission cable linking the united states west coast and japan . the pipeline was expected to be completed by 2016 end . 10 kddi and ericsson began working together in december 2015 in order to research and develop 5g technology . 11 lawsuits edit in 2003 several class action complaints were filed against ddi for misrepresenting and or failing to disclose material facts about the company s financial results . 12 the parties agreed on a 4.4 million settlement in 2006 . 13 see also edit tokyo portal telecommunication portal companies portal au kddi mobile g book a telematics service provided by toyota in japan only kddi india private limited references and footnotes edit a b c 2015 form 10 k kddi . forbes . merger of ddi kdd and ido corporate data . kddi . retrieved on february 12 2016 . archived copy . archived from the original on january 16 2009 . retrieved april 22 2009 . brightwire . brightwire . retrieved 2016 03 28 . htc and kddi to sell htc j . brightwire . japanese telco kddi buys content delivery network cdnetworks for 167 million . techcrunch . october 21 2011 . kddi sumitomo ink deal with myanmar telecom for mobile phone service 17 july 2014 . http english.kyodonews.jp . kyodo news . retrieved 17 july 2014 . external link in website help kddi sumitomo ink deal with myanmar telecom for mobile phone service . http www.japantimes.co.jp . the japan times . retrieved 17 july 2014 . external link in website help high speed undersea cable to link us asia . the tokyo news.net . 12 august 2014 . retrieved 13 august 2014 . dan kobialka 2015 12 01 . ericsson kddi partner for 5g research and development . telco hub content from talkin cloud . talkincloud.com . retrieved 2016 03 28 . class action suit filed vs ddi . http securities.stanford.edu 1028 ddicqob03 01 . missing or empty title help external links edit wikimedia commons has media related to kddi . japanese kddi corporation english kddi corporation about kddi investor relations english global kddi corporation kddi au v t e kddi divisions and subsidiaries current au kddi america kddi mobile kddi india kddi laboratory kddi network and solutions kddi technology okinawa cellular telephone telehouse america telehouse europe defunct ddi pocket joint ventures and shareholdings kddi & bt global solutions natasha inc. unity services au one net hikari one lismo other kazuo inamori kddi building kddi designing studio hiroshi okuda category commons links to related articles v t e topix 100 companies of japan core 30 7 & i astellas canon denso fanuc hitachi honda jr central jr east jt kddi mitsubishi corporation mitsubishi estate mitsui & co. mitsui fudosan mizuho mufg murata nissan nomura ntt ntt docomo panasonic shin etsu softbank sony sumitomo mitsui financial takeda tokio marine toyota large 70 on ajinomoto ana asahi breweries asahi kasei bank of yokohama bridgestone chubu electric power dai ichi life daiichi sankyo daikin daito trust construction daiwa house daiwa securities eisai fast retailing fujifilm fuji heavy industries fujitsu hoya inpex isuzu itochu japan airlines jr west jfe jx kao kepco keyence kirin 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